NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes complaints
8 reportsClear category filterMileage unknown · Apr 30, 2025
Electrical SystemEngineService Brakes
On April 23, 2024, while decelerating gently at a traffic light, I heard a loud “thump” sound from the rear of my 2021 Porsche Taycan. Immediately, the vehicle lost access to the Reverse (R) and Park (P) gears. I was able to slowly coast into a nearby parking lot, but then all gear positions (Drive, Reverse, Neutral, Park) becam…
Read full complaint
On April 23, 2024, while decelerating gently at a traffic light, I heard a loud “thump” sound from the rear of my 2021 Porsche Taycan. Immediately, the vehicle lost access to the Reverse (R) and Park (P) gears. I was able to slowly coast into a nearby parking lot, but then all gear positions (Drive, Reverse, Neutral, Park) became completely unresponsive. The vehicle was immobilized and had to be towed. At the time of failure, the vehicle had just under 45,000 miles and had received routine maintenance and a recall inspection at a Porsche Center in March 2024. The factory warranty expired only one day earlier, on April 22. Porsche is refusing to cover repairs or provide a loaner vehicle, even though the failure clearly occurred at extremely low mileage and immediately after warranty expiration. The failure pattern matches the symptoms described in TSB #2209 (NHTSA ID: 10210797) for the 2022 Taycan, which identifies a known defect where the vehicle unexpectedly shifts from D or R into N or P without driver input. While my vehicle is a 2021 model, the behavior is nearly identical — sudden loss of drivability, unexpected gear disengagement, and major safety risk in traffic. This incident could have resulted in a serious accident had it happened in moving traffic. I am submitting this complaint in hopes that NHTSA will investigate whether this known transmission defect also affects 2021 Taycan models, and to ensure Porsche takes responsibility for latent safety defects, regardless of narrowly expired warranty status.
NHTSA ODI #11658019
Mileage unknown · Oct 11, 2024
Electrical SystemFuel/propulsion SystemService Brakes
Accelerating away from a stop sign, and going about 25 mph, the car slammed on the brakes, even a couple of ABS jerks, and said “Engine Control Issue; Park in a safe place.” (It might have said Engine Control Error). After stopping, was unable to move the car, as all drive power had been shut off. All instrumentation was still p…
Read full complaint
Accelerating away from a stop sign, and going about 25 mph, the car slammed on the brakes, even a couple of ABS jerks, and said “Engine Control Issue; Park in a safe place.” (It might have said Engine Control Error). After stopping, was unable to move the car, as all drive power had been shut off. All instrumentation was still powered up. I then shut off power to car, waited 15 seconds, and car powered up normally and was able to drive normally with no warning indications on instrument panel.
NHTSA ODI #11619339
Mileage unknown · Oct 2, 2024
Service Brakes
On September 5th I was driving my 2021 Taycan 4S on my way to the Gym at 4:15 am, at that time there hardly any traffic. As am merging on the 101 southbound at the nearest on ramp everything seemed ok, as am driving along at 60-65 mph, I came to a downhill and the car was gaining speed, I stepped on the brake pedal to slow it do…
Read full complaint
On September 5th I was driving my 2021 Taycan 4S on my way to the Gym at 4:15 am, at that time there hardly any traffic. As am merging on the 101 southbound at the nearest on ramp everything seemed ok, as am driving along at 60-65 mph, I came to a downhill and the car was gaining speed, I stepped on the brake pedal to slow it down and to my surprise the brake pedal went all the way down to the floor! I had no brakes and gaining speed, my first thought was if the brakes had failed I would either crash the car against the freeway sidewalks or try to find a place where I can crash without hurting other drivers, fortunately I kept on pressing the brake pedal and it built up some pressure to slow it down but not to stop it, I kept my cool, but I was shaking knowing that I had no brakes! after a few miles the car was slowing down and was able To get off the freeway and pulled into my gym’s parking lot that luckily has an uphill and it helped to slow it down to a complete stop. At this point there was no warnings or error on the dashboard until it came to a complete stop, the message read “PSM failure” and to visit the workshop, nothing about the brake failure that had just happened! And it was after 2 hours, the failure occurred at 4:15 am and that did not show up until 6:12 am. I went into my gym to calm myself down after this horrible experience and after an hour or so I went back to my car and that is when I saw the warning, after a while I called Porsche road assistance and left the car where it was because Porsche road assistance couldn’t send a tow truck quickly, I revived a call from the tow truck company at 9:00 am and met them at the location, I explained to the driver what had happened and as he drove the car out of the parking spot brake fluid started to spray,out of the driver side font caliper, and there was a poodle of brake fluid under the car.
NHTSA ODI #11617777
Mileage unknown · Apr 21, 2024
Service BrakesWheelsCrash
I was driving N/B 101 freeway w my wife at approx 70 mph. I felt the rear end slip ever so slightly and thought maybe I somehow lost traction w the road. I continued driving and it occurred twice more in the span of a few miles. I then realized it was unlikely I continued to lose traction with the road. I told my wife someth…
Read full complaint
I was driving N/B 101 freeway w my wife at approx 70 mph. I felt the rear end slip ever so slightly and thought maybe I somehow lost traction w the road. I continued driving and it occurred twice more in the span of a few miles. I then realized it was unlikely I continued to lose traction with the road. I told my wife something felt wrong and began to maneuver from the #1 lane to the shoulder. I slowed to 50 mph and continued straight w my foot off the accelerator and the brake with both hands on the steering wheel in a straight (non turning) position. Suddenly, the rear end of the vehicle came out and we went into a massive spin. It ultimately caused us to crash into a median wall. I have been through many driver's courses. I have been through many skid pad trainings. I have also been through Precision Intervention Technique (PIT) training. I have been in both the receiving end of a PIT and the giving end of a PIT. The force of this spin was greater than any spin I have felt. It felt like one side or perhaps both rear wheels locked up. I have no other explanation that could cause any vehicle to just spin out of control while driving straight at 50 mph.
NHTSA ODI #11584353
Mileage unknown · May 30, 2023
Service BrakesCrash
The brakes had no air pressure when trying to slow down; Completely Totalled Which then caused a collision into another vehicle; The car had significant damage with inspection by Insurance adjuster and collision team; No warning lights and had been in the Porsche dealership for computer updates prior to incident.
NHTSA ODI #11524460
Mileage unknown · Mar 2, 2023
Service Brakes
The brakes fail in wet conditions. Porsche Taycan has 2 brake systems- light braking is regenerative braking (converting mechanical energy into electricity) and for heavier braking the mechanical disc brakes take over IN THIS FAILURE SITUATION in wet conditions pressing the brake pedal does VERY LITTLE to slow the car. DURING…
Read full complaint
The brakes fail in wet conditions. Porsche Taycan has 2 brake systems- light braking is regenerative braking (converting mechanical energy into electricity) and for heavier braking the mechanical disc brakes take over IN THIS FAILURE SITUATION in wet conditions pressing the brake pedal does VERY LITTLE to slow the car. DURING THESE FAILURE SITUATIONS, there is 0 regenerative braking occurring. Normally if there is 0 regen braking mechanical brakes engage at 1% brake pedal press so the entirety of the brake pedal engages the mechanical brakes. DURING THIS FAILURE SITUATION, the mechanical braking system does not engage early so it does not begin to engage until near the end of the brake pedal travel. DURING THIS FAILURE EVENT, THE MECHANICAL BRAKES ARE ONLY AT MINIMAL STOPPING POWER (+/- 20%). It has been compared to the first stop after getting a car washed– one must ‘jam on’ their brakes in order to get their car to stop, after which it tends to stop well. Cars come from the car wash at 1-3 mph, so 10-20% braking power does not put the user in jeopardy. IN THESE FAILURE SITUATIONS THE PORSCHE TAYCAN only has 10-20% stopping power WHILE TRAVELLING ‘AT SPEED’ ON NORMAL ROADWAYS The first time this happened I was approaching a stop light in traffic. If the turn lane weren’t empty I WOULD HAVE CRASHED into the cars ahead of me; I jerked the car into the turn lane & eventually came to a stop, with the brake pedal pressed in at 100% for the entire time. It happens at speeds from 3-50 mph It HAS been reproduced with myself in the car by Porsche service, and by other people in their cars, it was reproduced on my car AND ALL OTHER TAYCANS ON THE LOT at the dealer – each car did it The dealer has done ‘everything in their power’ but it is still happening. I was told Porsche NA was investigating on their wet track at their Atlanta HQ, but that the cars ‘tested as designed’ No warning messages or errors –the regen braking gauge always shows 0% while this happens
NHTSA ODI #11509792
Mileage unknown · Mar 24, 2022
Service Brakes
This vehicle is fully electric, and it uses regeneration while braking. With regeneration on, the braking distance is much shorter than without. The driver does NOT have any means to turn regeneration off while braking. In some instances, the first time the braking system is engaged, regeneration does not kick in, and the braki…
Read full complaint
This vehicle is fully electric, and it uses regeneration while braking. With regeneration on, the braking distance is much shorter than without. The driver does NOT have any means to turn regeneration off while braking. In some instances, the first time the braking system is engaged, regeneration does not kick in, and the braking distance is unexpectedly longer than usual. This has always happened after the car was off for a while and only during the first hard braking. I captured a video of one of these instances.
NHTSA ODI #11458089
Mileage unknown · Sep 15, 2021
Service Brakes
The vehicle would loose braking pressure after a few minutes of driving. This occurred when the vehicle transitions from regenerative braking to standard braking. Dealer states it is a problem with the brake booster.
NHTSA ODI #11433024
Official recalls
21Dec 19, 2025
Porsche Cars North America, Inc. (Porsche) is recalling certain 2019-2025 Cayenne, Cayenne E-Hybrid, 2020-2025 911, Taycan, 2024-2025 Panamera, and 2025 Panamera E-Hybrid vehicles. The rearview camera image may not display when the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
Consequence & remedy
Consequence: A rearview image that does not display properly reduces the driver's view behind the vehicle, increasing the risk of a crash.
Remedy: Dealers will update the driver assistance software, free of charge. Owner notification letters were mailed February 13, 2026. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ASB2. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning January 19, 2026.
Oct 1, 2024
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2023 Taycan vehicles. The high-voltage battery may experience a short circuit within the battery module.
Consequence & remedy
Consequence: A short circuit in a high-voltage battery increases the risk of a fire.
Remedy: Owners are advised to only charge their vehicles to a maximum of 80% battery capacity until the repair has been completed. Dealers will replace the affected modules in the high-voltage battery, free of charge. Owner notification letters were mailed November 22, 2024. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ARB5. This recall expands previous recall numbers 23V-840, 24V-215, and 24V-217. Vehicles previously repaired under the prior recalls will need to have the new remedy completed.
Additional source detail variants (2)
Electrical System:propulsion System:traction Battery
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2023 Taycan vehicles. The high-voltage battery may experience a short circuit within the battery module.
Consequence: A short circuit in a high-voltage battery increases the risk of a fire.
Remedy: Owners are advised to only charge their vehicles to a maximum of 80% battery capacity until the repair has been completed. Dealers will replace the affected modules in the high-voltage battery, free of charge. Owner notification letters were mailed November 22, 2024. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ARB5. This recall expands previous recall numbers 23V-840, 24V-215, and 24V-217. Vehicles previously repaired under the prior recalls will need to have the new remedy completed.
Electrical System:software
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2023 Taycan vehicles. The high-voltage battery may experience a short circuit within the battery module.
Consequence: A short circuit in a high-voltage battery increases the risk of a fire.
Remedy: Owners are advised to only charge their vehicles to a maximum of 80% battery capacity until the repair has been completed. Dealers will replace the affected modules in the high-voltage battery, free of charge. Owner notification letters were mailed November 22, 2024. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ARB5. This recall expands previous recall numbers 23V-840, 24V-215, and 24V-217. Vehicles previously repaired under the prior recalls will need to have the new remedy completed.
Oct 1, 2024
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021-2024 Taycan vehicles. The high-voltage battery may experience a short circuit within the battery module.
Consequence & remedy
Consequence: A short circuit in a high-voltage battery increases the risk of a fire.
Remedy: Dealers will install advanced diagnostic software as the final remedy, anticipated to be available in the first quarter of 2025. Porsche will monitor available online vehicle data and contact owners as necessary, to advise them to only charge the vehicle to 80% capacity until the battery can be replaced. For vehicles in which online data is unavailable, dealers will perform a diagnostic test and replace the battery module assembly, if necessary and advise owners to only charge to 80% capacity. Repairs will be performed free of charge. Owner notification letters were mailed August 6, 2025. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's numbers for this recall are ARB6 and ARB7. This recall expands and replaces previous recall numbers 23V-840, 24V-215, and 24V-217.
Additional source detail variants (2)
Electrical System:propulsion System:traction Battery
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021-2024 Taycan vehicles. The high-voltage battery may experience a short circuit within the battery module.
Consequence: A short circuit in a high-voltage battery increases the risk of a fire.
Remedy: Dealers will install advanced diagnostic software as the final remedy, anticipated to be available in the first quarter of 2025. Porsche will monitor available online vehicle data and contact owners as necessary, to advise them to only charge the vehicle to 80% capacity until the battery can be replaced. For vehicles in which online data is unavailable, dealers will perform a diagnostic test and replace the battery module assembly, if necessary and advise owners to only charge to 80% capacity. Repairs will be performed free of charge. Owner notification letters were mailed August 6, 2025. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's numbers for this recall are ARB6 and ARB7. This recall expands and replaces previous recall numbers 23V-840, 24V-215, and 24V-217.
Electrical System:software
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021-2024 Taycan vehicles. The high-voltage battery may experience a short circuit within the battery module.
Consequence: A short circuit in a high-voltage battery increases the risk of a fire.
Remedy: Dealers will install advanced diagnostic software as the final remedy, anticipated to be available in the first quarter of 2025. Porsche will monitor available online vehicle data and contact owners as necessary, to advise them to only charge the vehicle to 80% capacity until the battery can be replaced. For vehicles in which online data is unavailable, dealers will perform a diagnostic test and replace the battery module assembly, if necessary and advise owners to only charge to 80% capacity. Repairs will be performed free of charge. Owner notification letters were mailed August 6, 2025. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's numbers for this recall are ARB6 and ARB7. This recall expands and replaces previous recall numbers 23V-840, 24V-215, and 24V-217.
Jun 19, 2024
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2025 Taycan vehicles. The front brake hoses can develop cracks and leak brake fluid.
Consequence & remedy
Consequence: A brake fluid leak can reduce braking performance and extend the distance required to stop, increasing the risk of a crash.
Remedy: Dealers will replace the front brake hoses, free of charge. Owner notification letters were mailed on January 29, 2025. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ARB0.
Mar 20, 2024
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021-2023 Taycan, Taycan 4 Cross Turismo, 2020-2023 Taycan 4S, Taycan Turbo S, 2021-2022 Taycan 4S Cross Turismo, 2022 Taycan Turbo S Cross Turismo, 2022-2023 Taycan GTS, 2023 Taycan GTS Sport Turismo, and 2020-2021 Taycan Turbo vehicles. The high-voltage battery may experience a short circuit within the battery modules.
Consequence & remedy
Consequence: A short circuit in the battery increases the risk of a fire.
Remedy: Owners are advised to only charge their vehicles to a maximum of 80% battery capacity until the repair has been completed. Dealers will replace the affected modules in the high-voltage battery, free of charge. Owner notification letters were mailed on October 8, 2024. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ARA4.
Mar 20, 2024
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021-2024 Taycan, 2020-2024 Taycan 4S, Taycan Turbo, 2021-2023 Taycan 4 Cross Turismo, 2022-2023 Taycan 4S Cross Turismo, Taycan Turbo S Cross Turismo, 2023 Taycan Turbo Cross Turismo, 2022-2024 Taycan GTS, Taycan GTS Sport Turismo, and 2020-2023 Taycan Turbo S vehicles. The high-voltage battery may experience a short circuit within the battery modules.
Consequence & remedy
Consequence: A short circuit in the battery increases the risk of a fire.
Remedy: Owners are advised to only charge their vehicles to a maximum of 80% battery capacity until the repair has been completed. Dealers will analyze the battery data and replace the high-voltage battery modules as necessary, free of charge. Owner notification letters were mailed on October 9, 2024. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ARA5.
Dec 13, 2023
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021-2023 Porsche Taycan, 2021-2022 Taycan 4S, Taycan Turbo S, Taycan Turbo, Taycan 4 Cross Turismo, Taycan 4S Cross Turismo, Taycan Turbo Cross Turismo, 2022 Taycan GTS, and Taycan GTS Sport Turismo vehicles. The high-voltage battery may experience a short circuit within the battery modules.
Consequence & remedy
Consequence: A short circuit in the battery increases the risk of a fire.
Remedy: Dealers will inspect and repair the high-voltage battery by replacing modules as necessary, free of charge Owner notification letters were mailed on June 14, 2024. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is APB5.
Dec 13, 2023
Porsche Cars North America, Inc. (Porsche) is recalling various models and model years. Please see the recall report for a list of the included vehicles. When using the industrial 220V/240V plug at the 100% charge setting, some home power outlets may be incapable of handling the electrical current required to utilize the compact charging system, causing the outlet or charging cable to overheat.
Consequence & remedy
Consequence: An overheated outlet or charging cable can increase the risk of a fire.
Remedy: Owners are advised not to use the 220V/240V compact/portable charging cable and only use the 110V home charging cable or public charging stations. Dealers will supply a new 220V/240V compact/portable charging cable with an incorporated temperature sensor, free of charge. Owner notification letters were mailed on October 24, 2024. A second notice will be sent once remedy parts become available, anticipated mid-2024. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is APB6.
May 16, 2023
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2022 Taycan vehicles. An incorrect warning indicator with an incorrect color is displayed in the instrument cluster when notifying owners of worn brake pads. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 135, "Light Vehicle Brake Systems," and 101, "Control and Displays."
Consequence & remedy
Consequence: An incorrect warning indicator may be misinterpreted and result in driving on worn brake pads with reduced brake performance, increasing the risk of a crash.
Remedy: Dealers will update the software for the instrument cluster, free of charge. Owner notification letters are expected to be mailed July 14, 2023. Owners may contact Porsche's customer service at 1-800-767-7243. Porsche's number for this recall is APA5.
Additional source detail variants (2)
Electrical System: Instrument Cluster/panel
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2022 Taycan vehicles. An incorrect warning indicator with an incorrect color is displayed in the instrument cluster when notifying owners of worn brake pads. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 135, "Light Vehicle Brake Systems," and 101, "Control and Displays."
Consequence: An incorrect warning indicator may be misinterpreted and result in driving on worn brake pads with reduced brake performance, increasing the risk of a crash.
Remedy: Dealers will update the software for the instrument cluster, free of charge. Owner notification letters are expected to be mailed July 14, 2023. Owners may contact Porsche's customer service at 1-800-767-7243. Porsche's number for this recall is APA5.
Service Brakes, Hydraulic
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2022 Taycan vehicles. An incorrect warning indicator with an incorrect color is displayed in the instrument cluster when notifying owners of worn brake pads. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 135, "Light Vehicle Brake Systems," and 101, "Control and Displays."
Consequence: An incorrect warning indicator may be misinterpreted and result in driving on worn brake pads with reduced brake performance, increasing the risk of a crash.
Remedy: Dealers will update the software for the instrument cluster, free of charge. Owner notification letters are expected to be mailed July 14, 2023. Owners may contact Porsche's customer service at 1-800-767-7243. Porsche's number for this recall is APA5.
Mar 17, 2023
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020 Taycan Turbo, 2021 Taycan, Taycan 4S Cross Turismo, 2022 Taycan, Taycan Turbo, Taycan GTS, Taycan 4 Cross Turismo, Taycan 4S Cross Turismo, 2020-2022 Taycan 4S and Taycan Turbo S, and 2023 Taycan vehicles. When there is an unbelted passenger, the seat belt warning light and audible chime will not activate as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Consequence & remedy
Consequence: A malfunctioning seat belt warning system may not alert the passenger to buckle their seat belt, increasing the risk of injury in the event of a crash.
Remedy: Dealers will update the instrument cluster software, free of charge. Owner notification letters are expected to be mailed May 16, 2023. Owners may contact Porsche's customer service at 1-800-767-7243. Porsche's number for this recall is APA2.
Additional source detail variants (2)
Electrical System: Instrument Cluster/panel
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020 Taycan Turbo, 2021 Taycan, Taycan 4S Cross Turismo, 2022 Taycan, Taycan Turbo, Taycan GTS, Taycan 4 Cross Turismo, Taycan 4S Cross Turismo, 2020-2022 Taycan 4S and Taycan Turbo S, and 2023 Taycan vehicles. When there is an unbelted passenger, the seat belt warning light and audible chime will not activate as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Consequence: A malfunctioning seat belt warning system may not alert the passenger to buckle their seat belt, increasing the risk of injury in the event of a crash.
Remedy: Dealers will update the instrument cluster software, free of charge. Owner notification letters are expected to be mailed May 16, 2023. Owners may contact Porsche's customer service at 1-800-767-7243. Porsche's number for this recall is APA2.
Seat Belts:front:warning Light/devices
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020 Taycan Turbo, 2021 Taycan, Taycan 4S Cross Turismo, 2022 Taycan, Taycan Turbo, Taycan GTS, Taycan 4 Cross Turismo, Taycan 4S Cross Turismo, 2020-2022 Taycan 4S and Taycan Turbo S, and 2023 Taycan vehicles. When there is an unbelted passenger, the seat belt warning light and audible chime will not activate as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Consequence: A malfunctioning seat belt warning system may not alert the passenger to buckle their seat belt, increasing the risk of injury in the event of a crash.
Remedy: Dealers will update the instrument cluster software, free of charge. Owner notification letters are expected to be mailed May 16, 2023. Owners may contact Porsche's customer service at 1-800-767-7243. Porsche's number for this recall is APA2.
Dec 13, 2022
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Taycan, Taycan 4S, Taycan Turbo S, Taycan 4 Cross Turismo, and Taycan 4S Cross Turismo vehicles. A retaining ring on top of the suspension strut may come loose, resulting in a dislodged strut and air loss from the strut spring.
Consequence & remedy
Consequence: An air suspension strut failure may cause a loss of vehicle handling and control, increasing the risk of a crash.
Remedy: Dealers will inspect the suspension strut and replace it, if necessary, free of charge. Owner notification letters are expected to be mailed February 10, 2023. Owners may contact Porsche's customer service at 1-800-767-7243. Porsche's number for this recall is ANB8.
Jun 8, 2022
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2022 Taycan vehicles. A software error could cause the center screen (including rearview camera image) and the touch control panel remain to black directly after the ignition is activated. Also, the Real-Top-View (including rearview camera image) could display a flickering image. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Consequence & remedy
Consequence: A malfunctioning center screen or touch control panel may obstruct the driver's view of camera assisted driving functions, increasing the risk of a crash.
Remedy: Dealers will install new software, free of charge. Owner notification letters are expected to be mailed August 5, 2022. Owners may contact Porsche's customer service at 1-800-767-7243. Porsche's number for this recall is ANA6.
Additional source detail variants (2)
Back Over Prevention: Sensing System: Camera
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2022 Taycan vehicles. A software error could cause the center screen (including rearview camera image) and the touch control panel remain to black directly after the ignition is activated. Also, the Real-Top-View (including rearview camera image) could display a flickering image. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Consequence: A malfunctioning center screen or touch control panel may obstruct the driver's view of camera assisted driving functions, increasing the risk of a crash.
Remedy: Dealers will install new software, free of charge. Owner notification letters are expected to be mailed August 5, 2022. Owners may contact Porsche's customer service at 1-800-767-7243. Porsche's number for this recall is ANA6.
Power Train:automatic Transmission:control Module (tcm/pcm/tecm)
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2022 Taycan vehicles. A software error could cause the center screen (including rearview camera image) and the touch control panel remain to black directly after the ignition is activated. Also, the Real-Top-View (including rearview camera image) could display a flickering image. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Consequence: A malfunctioning center screen or touch control panel may obstruct the driver's view of camera assisted driving functions, increasing the risk of a crash.
Remedy: Dealers will install new software, free of charge. Owner notification letters are expected to be mailed August 5, 2022. Owners may contact Porsche's customer service at 1-800-767-7243. Porsche's number for this recall is ANA6.
Apr 26, 2022
Porsche Cars of North America, Inc. (Porsche) is recalling certain 2020-2021 Taycan vehicles. The driver and passenger seat wire harness could become damaged during horizontal seat adjustment.
Consequence & remedy
Consequence: A damaged seat wire harness may deactivate air bags, increasing the risk of injury in a crash.
Remedy: Dealers will inspect the seat wire harness for damage, add fabric tape to secure the harness, and repair damaged wires as necessary, free of charge. Owner notification letters were mailed July 22, 2022. Owners may contact Porsche's customer service at 1-800-767-7243. Porsche's number for this recall is ANA5.
Feb 22, 2022
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2021 Taycan vehicles equipped with an optional rear center seat. The center seat belt buckle wiring harness may obstruct access to the right rear seat lower child seat anchors, preventing a child seat from being properly secured. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 225, "Child Restraint Anchorage Systems."
Consequence & remedy
Consequence: An improperly secured child seat increases the risk of injury during a crash.
Remedy: Dealers will reroute and secure the center rear seat belt buckle wiring harness and, as necessary, replace a damaged buckle, free of charge. Owner notification letters were mailed April 7, 2022. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ANA4.
Additional source detail variants (2)
Seat Belts:rear/other:anchorage
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2021 Taycan vehicles equipped with an optional rear center seat. The center seat belt buckle wiring harness may obstruct access to the right rear seat lower child seat anchors, preventing a child seat from being properly secured. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 225, "Child Restraint Anchorage Systems."
Consequence: An improperly secured child seat increases the risk of injury during a crash.
Remedy: Dealers will reroute and secure the center rear seat belt buckle wiring harness and, as necessary, replace a damaged buckle, free of charge. Owner notification letters were mailed April 7, 2022. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ANA4.
Seat Belts: Rear/other:buckle Assembly
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2021 Taycan vehicles equipped with an optional rear center seat. The center seat belt buckle wiring harness may obstruct access to the right rear seat lower child seat anchors, preventing a child seat from being properly secured. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 225, "Child Restraint Anchorage Systems."
Consequence: An improperly secured child seat increases the risk of injury during a crash.
Remedy: Dealers will reroute and secure the center rear seat belt buckle wiring harness and, as necessary, replace a damaged buckle, free of charge. Owner notification letters were mailed April 7, 2022. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ANA4.
Feb 2, 2022
Porsche Cars North America, Inc. (Porsche) is recalling one 2021 Taycan vehicle. The front and rear suspension may be misaligned.
Consequence & remedy
Consequence: Suspension misalignment may cause premature or uneven tire wear, increasing the risk of a crash.
Remedy: Dealers will inspect the front and rear axles, adjust the alignment as necessary, and replace any prematurely or unevenly worn tires, free of charge. The owner notification letter was mailed March 10, 2022. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ANA2.
Additional source detail variants (2)
Tires
Porsche Cars North America, Inc. (Porsche) is recalling one 2021 Taycan vehicle. The front and rear suspension may be misaligned.
Consequence: Suspension misalignment may cause premature or uneven tire wear, increasing the risk of a crash.
Remedy: Dealers will inspect the front and rear axles, adjust the alignment as necessary, and replace any prematurely or unevenly worn tires, free of charge. The owner notification letter was mailed March 10, 2022. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ANA2.
Suspension
Porsche Cars North America, Inc. (Porsche) is recalling one 2021 Taycan vehicle. The front and rear suspension may be misaligned.
Consequence: Suspension misalignment may cause premature or uneven tire wear, increasing the risk of a crash.
Remedy: Dealers will inspect the front and rear axles, adjust the alignment as necessary, and replace any prematurely or unevenly worn tires, free of charge. The owner notification letter was mailed March 10, 2022. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ANA2.
Oct 13, 2021
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2021 Taycan vehicles. The pre-collision automatic hazard lights may activate in non-emergency situations. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Consequence & remedy
Consequence: An activation of hazard lights in non-emergency situations could confuse other drivers, increasing the risk of a crash.
Remedy: Dealers will reprogram the hazard lights, free of charge. Owner notification letters were mailed December 2, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMC1.
Sep 8, 2021
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2021 911 Carrera and Taycan vehicles. The pressure input rod connection on the brake booster may be loose and could detach.
Consequence & remedy
Consequence: A detached pressure input rod will cause the brake pedal to fail, increasing the risk of a crash.
Remedy: Dealers will repair or replace the brake booster as necessary, free of charge. Owner notification letters were mailed October 28, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB9.
Additional source detail variants (2)
Service Brakes, Hydraulic:critical Fasteners
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2021 911 Carrera and Taycan vehicles. The pressure input rod connection on the brake booster may be loose and could detach.
Consequence: A detached pressure input rod will cause the brake pedal to fail, increasing the risk of a crash.
Remedy: Dealers will repair or replace the brake booster as necessary, free of charge. Owner notification letters were mailed October 28, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB9.
Service Brakes, Hydraulic:foundation Components
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2021 911 Carrera and Taycan vehicles. The pressure input rod connection on the brake booster may be loose and could detach.
Consequence: A detached pressure input rod will cause the brake pedal to fail, increasing the risk of a crash.
Remedy: Dealers will repair or replace the brake booster as necessary, free of charge. Owner notification letters were mailed October 28, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB9.
Aug 4, 2021
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 911 Carrera Coupe, 911 Carrera S Coupe, 911 Carrera 4 Coupe, 911 Carrera 4S Coupe, 911 Turbo Coupe, 911 Turbo S Coupe, Panamera, Panamera 4 E-Hybrid, Panamera 4S, Panamera GTS, Panamera Turbo S, Taycan, Taycan 4S, Taycan Turbo, and Taycan Turbo S vehicles. The seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Consequence & remedy
Consequence: An unsecured child restraint system can increase the risk of injury during a crash.
Remedy: Dealers will inspect and replace the seat belt assemblies, as necessary, free of charge. Owner notification letters were mailed October 1, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB6.
Additional source detail variants (3)
Seat Belts:rear/other:retractor
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 911 Carrera Coupe, 911 Carrera S Coupe, 911 Carrera 4 Coupe, 911 Carrera 4S Coupe, 911 Turbo Coupe, 911 Turbo S Coupe, Panamera, Panamera 4 E-Hybrid, Panamera 4S, Panamera GTS, Panamera Turbo S, Taycan, Taycan 4S, Taycan Turbo, and Taycan Turbo S vehicles. The seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Consequence: An unsecured child restraint system can increase the risk of injury during a crash.
Remedy: Dealers will inspect and replace the seat belt assemblies, as necessary, free of charge. Owner notification letters were mailed October 1, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB6.
Seat Belts:front:retractor
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 911 Carrera Coupe, 911 Carrera S Coupe, 911 Carrera 4 Coupe, 911 Carrera 4S Coupe, 911 Turbo Coupe, 911 Turbo S Coupe, Panamera, Panamera 4 E-Hybrid, Panamera 4S, Panamera GTS, Panamera Turbo S, Taycan, Taycan 4S, Taycan Turbo, and Taycan Turbo S vehicles. The seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Consequence: An unsecured child restraint system can increase the risk of injury during a crash.
Remedy: Dealers will inspect and replace the seat belt assemblies, as necessary, free of charge. Owner notification letters were mailed October 1, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB6.
Seat Belts
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 911 Carrera Coupe, 911 Carrera S Coupe, 911 Carrera 4 Coupe, 911 Carrera 4S Coupe, 911 Turbo Coupe, 911 Turbo S Coupe, Panamera, Panamera 4 E-Hybrid, Panamera 4S, Panamera GTS, Panamera Turbo S, Taycan, Taycan 4S, Taycan Turbo, and Taycan Turbo S vehicles. The seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Consequence: An unsecured child restraint system can increase the risk of injury during a crash.
Remedy: Dealers will inspect and replace the seat belt assemblies, as necessary, free of charge. Owner notification letters were mailed October 1, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB6.
Jun 29, 2021
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2021 Taycan Turbo, Taycan Turbo S, Taycan 4S, 2021 Taycan, Taycan Cross Turismo, Taycan Turbo S Cross Turismo, Taycan 4S Cross Turismo, and Taycan Turbo Cross Turismo vehicles. The monitoring software can incorrectly detect a fault and shutdown the power train, causing a loss of motive power.
Consequence & remedy
Consequence: A loss of motive power increases the risk of a crash.
Remedy: Dealers will reprogram the power electronics and the engine control unit, free of charge. Owner notification letters were mailed July 30, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB5.
Additional source detail variants (2)
Engine And Engine Cooling:engine:engine Control Module (ecu/ecm):software
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2021 Taycan Turbo, Taycan Turbo S, Taycan 4S, 2021 Taycan, Taycan Cross Turismo, Taycan Turbo S Cross Turismo, Taycan 4S Cross Turismo, and Taycan Turbo Cross Turismo vehicles. The monitoring software can incorrectly detect a fault and shutdown the power train, causing a loss of motive power.
Consequence: A loss of motive power increases the risk of a crash.
Remedy: Dealers will reprogram the power electronics and the engine control unit, free of charge. Owner notification letters were mailed July 30, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB5.
Electrical System:propulsion System:traction Motor:controller:software
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2021 Taycan Turbo, Taycan Turbo S, Taycan 4S, 2021 Taycan, Taycan Cross Turismo, Taycan Turbo S Cross Turismo, Taycan 4S Cross Turismo, and Taycan Turbo Cross Turismo vehicles. The monitoring software can incorrectly detect a fault and shutdown the power train, causing a loss of motive power.
Consequence: A loss of motive power increases the risk of a crash.
Remedy: Dealers will reprogram the power electronics and the engine control unit, free of charge. Owner notification letters were mailed July 30, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB5.
May 17, 2021
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Taycan, Panamera, Panamera Turbo S, Panamera GTS, Panamera 4, Panamera 4 Sport Turismo, Panamera 4 Executive, Panamera 4S Executive, Panamera 4S, Panamera 4S E-Hybrid, and Panamera 4 E-Hybrid vehicles. The front lower trailing arms were not forged correctly and may break.
Consequence & remedy
Consequence: A broken front lower trailing arm may cause a loss of vehicle control, increasing the risk of a crash.
Remedy: Dealers will replace the front lower trailing arms, free of charge. Owner notification letters were mailed October 1, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB2.
Mar 10, 2021
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Porsche Taycan Turbo, Taycan Turbo S, Taycan, Taycan 4S, 911 Turbo S Coupe, Cayman, Cayman T, Cayman S, Cayman GT4, 911 Carrera Coupe, 911 Carrera S Coupe, 911 Carrera 4S Coupe, 911 Carrera 4S Targa, 911 Carrera Cabriolet, 911 Carrera S Cabriolet, 911 Carrera 4S Targa Heritage Design Edition, 911 Carrera 4S Cabriolet, 911 Turbo Coupe, 911 Turbo Cabriolet, 911 Turbo S Cabriolet, 718 Spyder, and Boxster vehicles. Certain suspension components may not have been tightened correctly and can loosen.
Consequence & remedy
Consequence: Loose suspension components may detach, causing a sudden loss of vehicle stability and control, and increasing the risk of a crash.
Remedy: Dealers will replace the affected suspension nuts and bolts. Dealers will also inspect surrounding components for damage, and replace any damaged parts as necessary. Repairs will be performed free of charge. Owner notification letters were mailed May 7, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMA3.
Additional source detail variants (2)
Suspension:critical Fasteners
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Porsche Taycan Turbo, Taycan Turbo S, Taycan, Taycan 4S, 911 Turbo S Coupe, Cayman, Cayman T, Cayman S, Cayman GT4, 911 Carrera Coupe, 911 Carrera S Coupe, 911 Carrera 4S Coupe, 911 Carrera 4S Targa, 911 Carrera Cabriolet, 911 Carrera S Cabriolet, 911 Carrera 4S Targa Heritage Design Edition, 911 Carrera 4S Cabriolet, 911 Turbo Coupe, 911 Turbo Cabriolet, 911 Turbo S Cabriolet, 718 Spyder, and Boxster vehicles. Certain suspension components may not have been tightened correctly and can loosen.
Consequence: Loose suspension components may detach, causing a sudden loss of vehicle stability and control, and increasing the risk of a crash.
Remedy: Dealers will replace the affected suspension nuts and bolts. Dealers will also inspect surrounding components for damage, and replace any damaged parts as necessary. Repairs will be performed free of charge. Owner notification letters were mailed May 7, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMA3.
Suspension
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Porsche Taycan Turbo, Taycan Turbo S, Taycan, Taycan 4S, 911 Turbo S Coupe, Cayman, Cayman T, Cayman S, Cayman GT4, 911 Carrera Coupe, 911 Carrera S Coupe, 911 Carrera 4S Coupe, 911 Carrera 4S Targa, 911 Carrera Cabriolet, 911 Carrera S Cabriolet, 911 Carrera 4S Targa Heritage Design Edition, 911 Carrera 4S Cabriolet, 911 Turbo Coupe, 911 Turbo Cabriolet, 911 Turbo S Cabriolet, 718 Spyder, and Boxster vehicles. Certain suspension components may not have been tightened correctly and can loosen.
Consequence: Loose suspension components may detach, causing a sudden loss of vehicle stability and control, and increasing the risk of a crash.
Remedy: Dealers will replace the affected suspension nuts and bolts. Dealers will also inspect surrounding components for damage, and replace any damaged parts as necessary. Repairs will be performed free of charge. Owner notification letters were mailed May 7, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMA3.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1PE21013 · Loss Of Motive Power
Opened May 17, 2021 · Closed Dec 23, 2021
Status: closed (inferred from source dates) · Electrical System; Electrical System:propulsion System
In May 2021, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE) of complaints received alleging a loss of motive power while in motion at any speed with no prior warning to the driver in the 2020-2021 model year (MY) Porsche Taycan electric vehicles. ODI had received 9 Vehicle Owner Questionnaires (VOQs) and several field reports. All complaints alleged that a loss of motive power occurred without warning and error messages about a battery fault displayed during or after the vehicle stalled.In the subject vehicles, a pulse-controlled inverter is mounted on each of the two drive modules on the front and rear axles. The software designed to continuously monitor end-to-end communication between the safety-related electronic control units (ECUs) in the vehicle can, in certain instances, incorrectly and sporadically detect a potentially faulty communication, set an error memory entry, and trigger a shutdown of the power train, resulting in loss of motive power. If this occurs, the affected vehicles display the warning message ?Motor control error. Stop vehicle in a safe place in the instrument cluster.Porsche has corrected the software malfunction in production. Further, Porsche is conducting a safety recall (21V-486) to upgrade the software on vehicles already in the field. In view of the recall action, this Preliminary Evaluation is closed. The agency reserves the right to take additional action if warranted by new circumstances.The ODI reports cited above can be reviewed online at nhtsa.gov under the following identification numbers: 11435775, 11433960, 11431568, 11429897, 11427688, 11426921, 11426902, 11424618, 11424613, 11424296, 11424175, 11424015, 11423458, 11423311, 11422549, 11422463, 11421593, 11421575, 11421494, 11421347, 11420845, 11420788, 11420734, 11420572, 11419756, 11419735, 11419730, 11419721, 11419422, 11418975, 11418935, 11418793, 11418705, 11418692, 11418593, 11418476, 11418405, 11418381, 11418245, 11418237, 11418153, 11418142, 11418132, 11418106, 11415110, 11414731, 11414486, 11404336, 11386164, 11383427, 11377898, 11377875, 11364083
Additional source detail variants (2)
Electrical System
In May 2021, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE) of complaints received alleging a loss of motive power while in motion at any speed with no prior warning to the driver in the 2020-2021 model year (MY) Porsche Taycan electric vehicles. ODI had received 9 Vehicle Owner Questionnaires (VOQs) and several field reports. All complaints alleged that a loss of motive power occurred without warning and error messages about a battery fault displayed during or after the vehicle stalled.In the subject vehicles, a pulse-controlled inverter is mounted on each of the two drive modules on the front and rear axles. The software designed to continuously monitor end-to-end communication between the safety-related electronic control units (ECUs) in the vehicle can, in certain instances, incorrectly and sporadically detect a potentially faulty communication, set an error memory entry, and trigger a shutdown of the power train, resulting in loss of motive power. If this occurs, the affected vehicles display the warning message ?Motor control error. Stop vehicle in a safe place in the instrument cluster.Porsche has corrected the software malfunction in production. Further, Porsche is conducting a safety recall (21V-486) to upgrade the software on vehicles already in the field. In view of the recall action, this Preliminary Evaluation is closed. The agency reserves the right to take additional action if warranted by new circumstances.The ODI reports cited above can be reviewed online at nhtsa.gov under the following identification numbers: 11435775, 11433960, 11431568, 11429897, 11427688, 11426921, 11426902, 11424618, 11424613, 11424296, 11424175, 11424015, 11423458, 11423311, 11422549, 11422463, 11421593, 11421575, 11421494, 11421347, 11420845, 11420788, 11420734, 11420572, 11419756, 11419735, 11419730, 11419721, 11419422, 11418975, 11418935, 11418793, 11418705, 11418692, 11418593, 11418476, 11418405, 11418381, 11418245, 11418237, 11418153, 11418142, 11418132, 11418106, 11415110, 11414731, 11414486, 11404336, 11386164, 11383427, 11377898, 11377875, 11364083
Electrical System:propulsion System
In May 2021, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE) of complaints received alleging a loss of motive power while in motion at any speed with no prior warning to the driver in the 2020-2021 model year (MY) Porsche Taycan electric vehicles. ODI had received 9 Vehicle Owner Questionnaires (VOQs) and several field reports. All complaints alleged that a loss of motive power occurred without warning and error messages about a battery fault displayed during or after the vehicle stalled.In the subject vehicles, a pulse-controlled inverter is mounted on each of the two drive modules on the front and rear axles. The software designed to continuously monitor end-to-end communication between the safety-related electronic control units (ECUs) in the vehicle can, in certain instances, incorrectly and sporadically detect a potentially faulty communication, set an error memory entry, and trigger a shutdown of the power train, resulting in loss of motive power. If this occurs, the affected vehicles display the warning message ?Motor control error. Stop vehicle in a safe place in the instrument cluster.Porsche has corrected the software malfunction in production. Further, Porsche is conducting a safety recall (21V-486) to upgrade the software on vehicles already in the field. In view of the recall action, this Preliminary Evaluation is closed. The agency reserves the right to take additional action if warranted by new circumstances.The ODI reports cited above can be reviewed online at nhtsa.gov under the following identification numbers: 11435775, 11433960, 11431568, 11429897, 11427688, 11426921, 11426902, 11424618, 11424613, 11424296, 11424175, 11424015, 11423458, 11423311, 11422549, 11422463, 11421593, 11421575, 11421494, 11421347, 11420845, 11420788, 11420734, 11420572, 11419756, 11419735, 11419730, 11419721, 11419422, 11418975, 11418935, 11418793, 11418705, 11418692, 11418593, 11418476, 11418405, 11418381, 11418245, 11418237, 11418153, 11418142, 11418132, 11418106, 11415110, 11414731, 11414486, 11404336, 11386164, 11383427, 11377898, 11377875, 11364083
Illustration