NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
883 reportsMileage unknown · Feb 6, 2024
Electrical SystemForward Collision Avoidance
Since delivery basic safety systems are not working such as emergency braking, blind spot monitoring, the key fob doesn’t open the car, the phone app doesn’t work, the front camera is not working and adas is offline, the car doesn’t start, the left rear passenger light always turns on, and the list goes on. It’s an electric car …
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Since delivery basic safety systems are not working such as emergency braking, blind spot monitoring, the key fob doesn’t open the car, the phone app doesn’t work, the front camera is not working and adas is offline, the car doesn’t start, the left rear passenger light always turns on, and the list goes on. It’s an electric car and was delivered with constant error messages that fisker could not resolve after more than a dozen attempts and multiple in person technician visits. Car is not safe to drive with unstable software. Cruise control supposed to be adaptive but car doesn’t detect another car and nearly drive into the car ahead.
NHTSA ODI #11570428
Mileage unknown · Feb 3, 2024
Electrical SystemService Brakes
CAR WENT TO SLEEP TURN OFF WHILE DRIVING CAR NOT DETECT THE KEY ,IS BIG SAFETY ISSUE, IT HAPPEND EVERY DAY I REPORT TO THE FISKER BUT NO RESPORND ALSO ALL SAFETY WARNING MASSAGE ON THE INSTRUMENT PANEL DIFFCUIT TO READ IS BIG SAFTY RISK A LOT GOING ON ON THIS CAR PLEASE RECALLING FISKEN OCEAN TO FIX
NHTSA ODI #11569632
10 miles · Feb 2, 2024
Back Over PreventionPower TrainService Brakes, Hydraulic
The contact owns a 2023 Fisker Ocean. The contact stated that upon start of the vehicle, the gear shifter failed to engage and would move out the park(P) position. The contact also noticed that the gear position lights had failed to illuminate on the instrument panel. The vehicle then began to roll backwards at a rapid speed as …
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The contact owns a 2023 Fisker Ocean. The contact stated that upon start of the vehicle, the gear shifter failed to engage and would move out the park(P) position. The contact also noticed that the gear position lights had failed to illuminate on the instrument panel. The vehicle then began to roll backwards at a rapid speed as the brakes failed to operate upon depression of the brake pedal. The contact immediately depressed the parking brake to avoid crashing into another vehicle. The contact called the manufacturer and was instructed to reboot the vehicle. Despite the reboot, the failure persisted as several warning lights appeared on the instrument panel. A technician was sent to the residence to inspect the vehicle; the contact was later informed by the mechanic that the vehicle was repaired. Days later while at a stop light, the contact was informed by a fellow motorist that the brake lights had failed to illuminate as needed and nearly resulted in an accident. The manufacturer was notified about failure and the contact was informed that another technician would be sent to inspect the vehicle. Additionally, the contact stated that while the back over prevention camera was in use, the screen would display false wheel alignment markings. The vehicle had yet to be repaired. The failure mileage was approximately 10.
NHTSA ODI #11569568
Mileage unknown · Feb 1, 2024
Service Brakes
I was trying to come to a stop at a red light using regen braking. At a remaining speed of about 20 mph both front wheels hit a significant bump between two concrete road surface plates. When hitting the bump, regen braking immediately disengaged and the car continued at 20 mph without any regen brake support. I had to depress t…
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I was trying to come to a stop at a red light using regen braking. At a remaining speed of about 20 mph both front wheels hit a significant bump between two concrete road surface plates. When hitting the bump, regen braking immediately disengaged and the car continued at 20 mph without any regen brake support. I had to depress the brake pedal hard in order to bring vehicle to a safe stop as, at the same time, the brake pressure point has shifted significantly and normal brake pedal pressure had no effect. Vehicle displayed no warning lamp or message. This is just the latest occurrence of the same issue which has happened to me multiple times over the past few weeks. Causes are bumps, potholes or also icy/slick surfaces while regen braking the vehicle. Even one wheel encountering such a situation will immediately lead to loss of regen brake on all 4 wheels and shifting pedal pressure point. On Jan 19, 2024 Fisker published a statement that this (or maybe a similar) issue was resolved with v1.10 of their software. I had my car delivered with v1.10 and am now on v1.11 (1/2) and have encountered loss of braking on both SW versions. Online tickets with Fisker support and talking to Fisker service advisors trying to get the vehicle investigated have yielded no result. To date Fisker has not conducted any noticeable effort to contain the situation.
NHTSA ODI #11569403
Mileage unknown · Feb 1, 2024
Forward Collision AvoidanceLane DepartureService Brakes
Any time I'm driving in wet or slightly slick weather conditions, the regenerative braking on my Fisker causes the brakes to lock up and instantly lose control. Even at very slow speeds. I've additionally had drastic safety issues with the car when driving in cruise control. When traveling around 70-80 mph on cruise control, wh…
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Any time I'm driving in wet or slightly slick weather conditions, the regenerative braking on my Fisker causes the brakes to lock up and instantly lose control. Even at very slow speeds. I've additionally had drastic safety issues with the car when driving in cruise control. When traveling around 70-80 mph on cruise control, when I'd hit even a small crack or bump in the road, the CC instantly shuts off causing the regenerative braking to engage. This is essentially the same as suddenly braking on a freeway with other traffic around. And since feet/legs are usually positioned off of the gas/brake it's very unsafe trying to react to this when it happens. Finally, the cars auto lane correction system occasionally pulls me in the wrong direction. When I slightly go over a lane, the lane assist engages. About 50% of the time, it actually pulls the car to the WRONG side.
NHTSA ODI #11569182
Mileage unknown · Jan 31, 2024
Power TrainVehicle Speed Control
Loss of drive power/acceleration during operation. On two occasions in the past few weeks the vehicle has become unresponsive when the accelerator is pressed. No warning lights, sounds, or other indication that something is wrong. Regenerative breaking also goes offline but regular brakes work. Car is forced to roll to a full st…
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Loss of drive power/acceleration during operation. On two occasions in the past few weeks the vehicle has become unresponsive when the accelerator is pressed. No warning lights, sounds, or other indication that something is wrong. Regenerative breaking also goes offline but regular brakes work. Car is forced to roll to a full stop and will resume function after shifting into park and then drive again.
NHTSA ODI #11569177
Mileage unknown · Jan 31, 2024
Vehicle Speed Control
I was driving down a residential street, about 20 mph. The accelerator stopped responding -- I'd step on it, but the car would only drift, as if it were in neutral. But the car was in Drive. I stopped in the middle of the road, turned the vehicle off, and then on, and the accelerator worked again.
NHTSA ODI #11569146
Mileage unknown · Jan 31, 2024
Electrical SystemPower TrainService Brakes
We had issues with the car from the day it arrived ranging from the key fob not working to multiple warning lights that interrupted the regenerative braking. Despite multiple tickets filed, Fisker was unresponsive. After about two weeks of owning the car (less than 250 miles on a brand new vehicle), the car went unresponsive whi…
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We had issues with the car from the day it arrived ranging from the key fob not working to multiple warning lights that interrupted the regenerative braking. Despite multiple tickets filed, Fisker was unresponsive. After about two weeks of owning the car (less than 250 miles on a brand new vehicle), the car went unresponsive while driving despite having a full charge and no warning/issue alerts. The car shifted itself into neutral and when the driver tried to put the car in park to get out of the car and see what was wrong, the car started to roll forward despite being in park. To stop the car from hitting oncoming traffic, the driver was able to get back in the car and manually depress the brake. Once the driver hit the brakes, the car stopped rolling forward, however the car remained unresponsive to any of the other gears. To get out of the street, the driver used the momentum of the roll forward to try to make a slight turn back into the neighborhood street however ran out of momentum and got stuck in the middle of the street again with the car now rolling backwards. The driver hit the brakes again to prevent the rollback and because the car was unresponsive, the driver was stuck holding the brake from 7:21 AM to around 8:45 AM. At 7:37 AM the car went black and many of the controls started to glitch (we have videos but the uploader tool is limited to photos only) Due to the car now being completely blacked out, the brake is very heavy and the slightest movement will cause a rollback. After several attempts to get ahold of Fisker including their roadside assistance and live chat, the driver was unable to get help and called the police instead. The car had to be towed and has been out of commission ever since. A Fisker technician has tried to diagnose the issues after three attempts but things are still unresolved. Fisker remains unresponsive and hasn’t even provided us with documentation of the service diagnostics despite repeated requests.
NHTSA ODI #11568937
Mileage unknown · Jan 29, 2024
Unknown Or Other
The back doors in my vehicle do not open from the inside when car is unlocked. Front driver and front passenger are able to exit the vehicle but rear passengers cannot. This would appear to pose a danger if there was a crash and rear passengers needed to exit the vehicle.
NHTSA ODI #11568662
Mileage unknown · Jan 29, 2024
Electrical System
Vehicle does not unlock and lock as expected. Vehicle frequently requires multiple unlock attempts to unlock the vehicle. Proximity unlock, an advertised feature, is not available. Occasionally vehicle will become unresponsive and not unlock for an extended duration. Fisker is aware these issues are widespread and continues to d…
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Vehicle does not unlock and lock as expected. Vehicle frequently requires multiple unlock attempts to unlock the vehicle. Proximity unlock, an advertised feature, is not available. Occasionally vehicle will become unresponsive and not unlock for an extended duration. Fisker is aware these issues are widespread and continues to deliver vehicles with these issues.
NHTSA ODI #11568607
Official recalls
6Nov 15, 2024
Fisker Group Inc (Fisker) is recalling certain 2023-2024 Ocean vehicles. The transmission may not shift into the selected gear, allowing the vehicle to roll away while in Drive or Reverse.
Consequence & remedy
Consequence: A vehicle roll away increases the risk of a crash or injury.
Remedy: Fisker released an over-the-air (OTA) software update on March 11, 2024, free of charge. Owners may contact Fisker customer service at 1-844-347-5371.
Aug 20, 2024
Fisker Group Inc (Fisker) is recalling certain 2023-2024 Ocean vehicles. The brake module software may cause an unexpected reduction in regenerative braking, decreasing the braking performance.
Consequence & remedy
Consequence: Decreased braking performance can extend the distance required to stop, increasing the risk of a crash.
Remedy: Fisker will release an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed September 26, 2024. Owners may contact Fisker customer service at 1-844-347-5371. Fisker's number for this recall is TSB10062408.
Jul 2, 2024
Fisker Group Inc (Fisker) is recalling all 2023-2024 Ocean vehicles. A communication failure with the cabin electric water pump can cause the high voltage battery management system (BMS) to enter limp mode, causing a loss of drive power.
Consequence & remedy
Consequence: A sudden loss of drive power increases the risk of a crash.
Remedy: Fisker will replace the pumps, free of charge. Owner notification letters were mailed August 19, 2024. Owners may contact Fisker customer service at 1-844-347-5371. Fisker's number for this recall is TSB30032401.
Jun 20, 2024
Fisker Group Inc (Fisker) is recalling all 2023-2024 Ocean vehicles. The exterior door handles can stick and fail to open.
Consequence & remedy
Consequence: A door that fails to open can prevent occupants from exiting in an emergency, increasing the risk of injury.
Remedy: Fisker will inspect and replace the door handles as necessary, free of charge. Owner notification letters were mailed August 19, 2024. Owners may contact Fisker customer service at 1-844-347-5371. Fisker's number for this recall is TSB55062401.
Jun 5, 2024
Fisker Group Inc (Fisker) is recalling all 2023 Ocean vehicles. The Motor Control Unit (MCU) and Vehicle Control Unit (VCU) software may cause the vehicle to enter a safe state protection mode unexpectedly, causing a loss of drive power.
Consequence & remedy
Consequence: A loss of drive power increases the risk of a crash.
Remedy: Fisker will release an over-the-air (OTA) update to the MCU and VCU software, free of charge. Owner notification letters were mailed June 13, 2024. Owners may contact Fisker customer service at 1-844-347-5371. Fisker's number for this recall is TSB10032403.
Jun 5, 2024
Fisker Group Inc (Fisker) is recalling all 2023 Ocean vehicles. The instrument panel displays the incorrect font size of the Brake, Park, and Antilock Brake System (ABS) warning lights, and displays certain warning lights in amber instead of red. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 135, "Light Vehicle Brake Systems" and 101, "Controls and Displays." Additionally, multiple warning lights fail to illuminate during the ignition cycle bulb check, failing to comply with the requirements of FMVSS 138 and 208.
Consequence & remedy
Consequence: Warning lights that do not display correctly can fail to alert the driver to critical safety information, increasing the risk of a crash or injury.
Remedy: Fisker will release an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed June 11, 2024. Owners may contact Fisker customer service at 1-844-347-5371. Fisker's number for this recall is TSB70062404.
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
4PE24013 · Inadvertent Automatic Emergency Braking
Opened May 8, 2024 · Closed Jan 16, 2025
Status: closed (inferred from source dates) · Forward Collision Avoidance: Automatic Emergency Braking
On May 8, 2024, the Office of Defects Investigation (ODI) opened PE24013 to investigate reports of inadvertent activation of the automatic emergency braking (AEB) system in model year (MY) 2023 Fisker Ocean vehicles manufactured by Fisker Group Inc. (Fisker). The complaints allege the activation of AEB without an apparent roadway obstruction in the vehicle’s forward path, resulting in sudden vehicle deceleration. This sudden deceleration occurs without adequate warning or input from the driver. The braking applications range from momentary, partial application resulting in rapid loss of speed to full application, which brings the vehicle to a complete stop in the travel lane. ODI sent Fisker an Information Request (IR) letter on May 20, 2024. On June 17 and 19, 2024, Fisker and its affiliates filed a voluntary petition for relief under chapter 11 of the Bankruptcy Code. Fisker provided an incomplete response to the IR on July 1, 2024. Limited information pertaining to system validation and failure data was provided. Fisker subsequently requested more time to provide additional responsive files due to limited available resources. Fisker sent additional responsive files on September 9, 2024, September 17, 2024, and December 16, 2024, but Fisker’s response did not contain sufficient information for ODI to fully evaluate the alleged safety defect. Further, on December 27, 2024, the Fisker employees with whom ODI had been corresponding informed ODI that all Fisker employees were being “dismissed” as of that date. ODI therefore does not anticipate receiving any further responsive submissions such that it can fully evaluate the reports that led to this investigation. ODI performed phone interviews and sent a survey to consumers to obtain more information and validate the allegations. Additionally, ODI reviewed allegations of the alleged safety defect that were submitted to various online forums. Most of these reports were similar in nature to the reports received by ODI. Some of the reports in online forums appear to be duplicative reports that were also submitted to ODI. Based on the responses received and analysis of similar online reporting, there was no clear trend in the following factors pertaining to the allegations: reoccurrence of events (i.e., single or multiple incidents), speed immediately prior to the event, whether the event concluded in a reduction of speed or a full stop, roadway conditions, and warning immediately prior to the event. To date, between the reports provided by Fisker and complaints made directly to the agency, ODI is aware of over 20 reports alleging inadvertent AEB activation. Before the employees were dismissed, Fisker’s testing done in response to the inadvertent AEB allegations reportedly did not result in any inadvertent AEB activations. The “Manufacturer” and “Total” counts in the above table have been left blank because of a pending request for confidential treatment by Fisker that could not be timely addressed given the company’s status. This information factored into ODI’s investigation and analysis. The available information does not warrant further action at this time. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. Additionally, the Agency notes that the Vehicle Safety Act states: “A manufacturer’s filing of a petition in bankruptcy under chapter 7 or chapter 11 of title 11 does not negate the manufacturer’s duty to comply with section 30112 or sections 30115 through 30120 of this title,” which include the recall provisions of the Act. The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
PE24010 · Failure To Open Door
Opened Apr 1, 2024 · Closed Aug 26, 2024
Status: closed (inferred from source dates) · Latches/locks/linkages:doors:latch
On April 1, 2024, the Office of Defects Investigation (ODI) opened PE24010 to investigate instances of failure to open the door in model year (MY) 2023 Fisker Ocean vehicles manufactured by Fisker Group Inc. Some complaints allege the inability to open the door from either the interior or exterior door handle, resulting in the need to use another door to egress. The investigation revealed that all four exterior door handles are subject to sticking in the extended/unlocked position, which may result in the inability to unlatch the door from either the interior or exterior door handle. The root cause is a dimensional interference between the exterior door handle chassis pocket and door handle, causing friction during handle deployment and retraction. The inability to open and egress from the occupant’s adjacent door presents an unreasonable risk to motor vehicle safety. On June 27, 2024, Fisker filed recall 24V-466 for certain MY 2023 Fisker Ocean vehicles. The recall remedy includes an inspection procedure for all four doors and provides replacement of the outer door handle if a “Not Okay” result is found. In view of the recall action being taken by Fisker, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
PE24005 · Unintended Vehicle Movement
Opened Feb 14, 2024 · Closed Dec 6, 2024
Status: closed (inferred from source dates) · Power Train:automatic Transmission
On February 14, 2024, the Office of Defects Investigation (ODI) opened PE24005 to investigate reports of unintended vehicle movement in model year (MY) 2023 Fisker Ocean vehicles manufactured by Fisker Group Inc. The complaints allege the inability to shift into the park gear and/or vehicle rollaway. The investigation found that the subject vehicles contain a logic that prevents the engagement of the park gear when the park gear request is made while the vehicle is still moving at low speeds. In the event the driver requests the park gear prior to the vehicle achieving a complete standstill status, the vehicle rejects the park gear request, displays a visual warning, and shifts into the neutral gear. Therefore, if the driver does not properly restrain the vehicle prior to exiting (i.e., allow the vehicle to come to a complete stop, then provide a second park gear request and/or engage the parking brake), the vehicle is at risk of freely rolling away in neutral. ODI found that existing strategies to deter drivers from exiting the vehicle after failing to ensure the transmission successfully engages the park gear have not stopped some from doing so. The absence of additional mechanisms to mitigate the effects of driver behavior in failing to ensure the park gear was engaged prior to exiting the vehicle constitutes a defect presenting a risk to motor vehicle safety. ODI is aware of one reported injury due to this safety defect. On November 15, 2024, Fisker filed recall 24V-865 for all MY 2023-2024 Fisker Ocean vehicles. The recall remedy is the release of software upgrade OS 2.0. This software update provides additional robustness to prevent unintended vehicle movement via two major changes. First, in the event the driver seatbelt is unlatched when the vehicle is traveling at low speeds, logic was added to initiate an automatic, controlled deceleration to bring the vehicle to a standstill. Once standstill status is achieved, the vehicle will automatically engage the park gear and the electronic parking brake. Second, OS 2.0 introduced an “Auto Vehicle Hold” feature, which holds the vehicle in standstill by maintaining friction brake pressure when the driver removes their foot from the brake pedal. This feature prevents the vehicle from rolling under gravity, which therefore helps engage both the park gear and electronic parking brake. In view of the recall action being taken by Fisker, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
PE24001 · Loss Of Braking Performance
Opened Jan 11, 2024 · Closed Aug 26, 2024
Status: closed (inferred from source dates) · Service Brakes; Service Brakes, Electric:software/programming
On January 11, 2024, the Office of Defects Investigation (ODI) opened PE24001 to investigate instances of loss of braking performance in model year (MY) 2023 Fisker Ocean vehicles manufactured by Fisker Group Inc. The complaints allege an intermittent partial loss of regenerative braking over low traction surfaces, without alerting the driver. ODI is aware of six minor crashes and one injury due to this failure. The subject vehicles utilize a brake blending feature to achieve deceleration. Upon application of the brake pedal, both the service brake system (friction braking) and regenerative braking system (electric motor negative torque) are applied. Regenerative braking on low friction road surfaces may result in wheel slippage due to the high motor negative torque. The vehicle responds by reducing and/or eliminating regenerative braking torque to reduce wheel slip on drive wheels to maintain vehicle stability and steerability. This reduction in regenerative braking may cause a sensation of loss of braking force (or even vehicle accelerating) that was reported by consumers. Additionally, the driver may experience an unusual/altered brake pedal feel during loss of regenerative braking events, requiring them to press the brake pedal harder to maintain the expected braking rate. Upon exiting the low friction road surface, the regenerative braking force is restored. The initial calibration of the regenerative braking system contained aggressive interventions with a slower recovery in the event of loss of regenerative braking. In November 2023, Fisker launched an Over-the-Air update (OS1.10 SW). This update included a recalibration to reduce regenerative braking torque less aggressively and allow torque recovery to occur more quickly. Based on consumer reports and the data that Fisker provided in response to ODI’s inquiry, OS 1.10 SW reduced, but did not eliminate, the sensation of loss of braking force and resulted in stopping distance performance improvements. Friction braking is always available when the driver presses the brake pedal, and its performance is unaffected by regenerative brake loss. Fisker’s braking system is designed to reach full deceleration even with an unavailable regenerative braking system. The partial loss of braking force during moderate braking events can be overcome by applying additional pressure to the brake pedal to slow or stop the vehicle. On August 20, 2024, Fisker filed recall 24V-623 for all 2023 MY Fisker Ocean vehicles produced for the U.S.A. The recall remedy includes OS 2.2 over-the-air update, which is expected to modify the brake module to enhance the vehicle brake system’s ability to adapt to various driving scenarios. With successful implementation of OS 2.2, a road disturbance will not trigger a reduction in regenerative braking torque. In view of the recall action being taken by Fisker, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
Additional source detail variants (2)
Service Brakes, Electric:software/programming
On January 11, 2024, the Office of Defects Investigation (ODI) opened PE24001 to investigate instances of loss of braking performance in model year (MY) 2023 Fisker Ocean vehicles manufactured by Fisker Group Inc. The complaints allege an intermittent partial loss of regenerative braking over low traction surfaces, without alerting the driver. ODI is aware of six minor crashes and one injury due to this failure. The subject vehicles utilize a brake blending feature to achieve deceleration. Upon application of the brake pedal, both the service brake system (friction braking) and regenerative braking system (electric motor negative torque) are applied. Regenerative braking on low friction road surfaces may result in wheel slippage due to the high motor negative torque. The vehicle responds by reducing and/or eliminating regenerative braking torque to reduce wheel slip on drive wheels to maintain vehicle stability and steerability. This reduction in regenerative braking may cause a sensation of loss of braking force (or even vehicle accelerating) that was reported by consumers. Additionally, the driver may experience an unusual/altered brake pedal feel during loss of regenerative braking events, requiring them to press the brake pedal harder to maintain the expected braking rate. Upon exiting the low friction road surface, the regenerative braking force is restored. The initial calibration of the regenerative braking system contained aggressive interventions with a slower recovery in the event of loss of regenerative braking. In November 2023, Fisker launched an Over-the-Air update (OS1.10 SW). This update included a recalibration to reduce regenerative braking torque less aggressively and allow torque recovery to occur more quickly. Based on consumer reports and the data that Fisker provided in response to ODI’s inquiry, OS 1.10 SW reduced, but did not eliminate, the sensation of loss of braking force and resulted in stopping distance performance improvements. Friction braking is always available when the driver presses the brake pedal, and its performance is unaffected by regenerative brake loss. Fisker’s braking system is designed to reach full deceleration even with an unavailable regenerative braking system. The partial loss of braking force during moderate braking events can be overcome by applying additional pressure to the brake pedal to slow or stop the vehicle. On August 20, 2024, Fisker filed recall 24V-623 for all 2023 MY Fisker Ocean vehicles produced for the U.S.A. The recall remedy includes OS 2.2 over-the-air update, which is expected to modify the brake module to enhance the vehicle brake system’s ability to adapt to various driving scenarios. With successful implementation of OS 2.2, a road disturbance will not trigger a reduction in regenerative braking torque. In view of the recall action being taken by Fisker, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
Service Brakes
On January 11, 2024, the Office of Defects Investigation (ODI) opened PE24001 to investigate instances of loss of braking performance in model year (MY) 2023 Fisker Ocean vehicles manufactured by Fisker Group Inc. The complaints allege an intermittent partial loss of regenerative braking over low traction surfaces, without alerting the driver. ODI is aware of six minor crashes and one injury due to this failure. The subject vehicles utilize a brake blending feature to achieve deceleration. Upon application of the brake pedal, both the service brake system (friction braking) and regenerative braking system (electric motor negative torque) are applied. Regenerative braking on low friction road surfaces may result in wheel slippage due to the high motor negative torque. The vehicle responds by reducing and/or eliminating regenerative braking torque to reduce wheel slip on drive wheels to maintain vehicle stability and steerability. This reduction in regenerative braking may cause a sensation of loss of braking force (or even vehicle accelerating) that was reported by consumers. Additionally, the driver may experience an unusual/altered brake pedal feel during loss of regenerative braking events, requiring them to press the brake pedal harder to maintain the expected braking rate. Upon exiting the low friction road surface, the regenerative braking force is restored. The initial calibration of the regenerative braking system contained aggressive interventions with a slower recovery in the event of loss of regenerative braking. In November 2023, Fisker launched an Over-the-Air update (OS1.10 SW). This update included a recalibration to reduce regenerative braking torque less aggressively and allow torque recovery to occur more quickly. Based on consumer reports and the data that Fisker provided in response to ODI’s inquiry, OS 1.10 SW reduced, but did not eliminate, the sensation of loss of braking force and resulted in stopping distance performance improvements. Friction braking is always available when the driver presses the brake pedal, and its performance is unaffected by regenerative brake loss. Fisker’s braking system is designed to reach full deceleration even with an unavailable regenerative braking system. The partial loss of braking force during moderate braking events can be overcome by applying additional pressure to the brake pedal to slow or stop the vehicle. On August 20, 2024, Fisker filed recall 24V-623 for all 2023 MY Fisker Ocean vehicles produced for the U.S.A. The recall remedy includes OS 2.2 over-the-air update, which is expected to modify the brake module to enhance the vehicle brake system’s ability to adapt to various driving scenarios. With successful implementation of OS 2.2, a road disturbance will not trigger a reduction in regenerative braking torque. In view of the recall action being taken by Fisker, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
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