NHTSA owner reports · September 18, 2026 snapshot.
Unknown Or Other complaints
283 reportsClear category filterMileage unknown · Jun 16, 2024
Service BrakesSteeringUnknown Or OtherInjury
Several potential dangerous situations have occurred with this car. 1. Brakes often fail on first attempt, only stops with pumping them. 2. Car randomly swerved to right twice, each time stopping by hitting something. 3. Car has locked itself and am unable to unlock with key fob, had to manually force it open. 4. Accelerator…
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Several potential dangerous situations have occurred with this car. 1. Brakes often fail on first attempt, only stops with pumping them. 2. Car randomly swerved to right twice, each time stopping by hitting something. 3. Car has locked itself and am unable to unlock with key fob, had to manually force it open. 4. Accelerator pedal has weird clicking to it. 5. Strange cracking sound from solar roof. It is impossible to get any type of service for this car as Fisker is unresponsive to phone calls or email attempts. The tech in the Delaware region has been terminated and since the car is undeliverable it is impossible to get to the closest one which seems to be Atlanta. No way of knowing if they will ever service the car.
NHTSA ODI #11594667
Mileage unknown · Jun 13, 2024
Unknown Or Other
The car doors will not open from the key fob, from the phone app, or from holding the key to the NFC reader.
NHTSA ODI #11594265
Mileage unknown · Jun 12, 2024
Electrical SystemUnknown Or Other
Any issues having to due with the Fisker Ocean are unresolved because no one answers the phone number that NTHSA and Fisker have provided (844-347-5971). Submitting a request on line does not result in a response and sending a request via email at support@fiskerinc.com does not yield a response. There are serious issues and safe…
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Any issues having to due with the Fisker Ocean are unresolved because no one answers the phone number that NTHSA and Fisker have provided (844-347-5971). Submitting a request on line does not result in a response and sending a request via email at support@fiskerinc.com does not yield a response. There are serious issues and safety concerns with the vehicle that are not resolved and no one is helping the consumer or general public.
NHTSA ODI #11593971
Mileage unknown · Jun 12, 2024
Unknown Or Other
I am unable to receive software updates from Fisker. I am currently using version 1.11 but many other customers have already received version 2.0 and 2.1. My safety is at risk because the 2.0 update has safety updates that improve the car's safety but I am not able to receive them. I have reached out to Fisker twice via telephon…
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I am unable to receive software updates from Fisker. I am currently using version 1.11 but many other customers have already received version 2.0 and 2.1. My safety is at risk because the 2.0 update has safety updates that improve the car's safety but I am not able to receive them. I have reached out to Fisker twice via telephone with no luck. I have reached out to my service technician with no luck and he has now been laid off. One of the safety features is a "H" for "hold" so that when you are on a hill, the car automatically holds for you. I currently roll backwards when on a hill and have to slam on brake to not roll down hill. There have been no warnings.
NHTSA ODI #11593960
Mileage unknown · Jun 11, 2024
Electrical SystemLane DepartureUnknown Or Other
- The key fob does not open the door immediately, and sometimes not for 5-10 minutes. Today, I had cold groceries and I stood outside my car trying to unlock it for 10 minutes. The fob didn’t work and neither did the app on my phone. My mother-in-law often rides with me and she is elderly. She would have had much difficulty in t…
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- The key fob does not open the door immediately, and sometimes not for 5-10 minutes. Today, I had cold groceries and I stood outside my car trying to unlock it for 10 minutes. The fob didn’t work and neither did the app on my phone. My mother-in-law often rides with me and she is elderly. She would have had much difficulty in the heat waiting for the car to unlock (luckily not with me today). Any number of emergencies require immediate access to the car - it should…I don’t know…unlock immediately when the unlock button is pressed. - Sometimes while sitting in traffic, the car will randomly go into “park.” If I have to move quickly to avoid an accident or make way for an ambulance, that is very problematic. - Interior lighting randomly comes on, which is especially troubling at night when trying to focus on the light from outside. - blind spot monitoring and radar detection randomly become unavailable several times per week and because I’m used to relying on an indicator before switching lanes, it causes risk.
NHTSA ODI #11593761
Mileage unknown · Jun 7, 2024
Electrical SystemFuel/propulsion SystemUnknown Or Other
There is an electrical component to this vehicle that is not shutting off. I charged the car to 80%, drove approximately 12 miles, locked the car at approximately 3:45 pm and it sat until 9:45am today. The vehicle has drained to 68%. I have proof of the charge for Electrify America and proof of the mileage.
NHTSA ODI #11593137
Mileage unknown · May 24, 2024
Service BrakesUnknown Or OtherVehicle Speed Control
Fisker Ocean One has less than 6K mileage and breaking system is extremely rough and makes lots of noise and squeaks, clash, etc. with abrupt halt sometimes throwing passengers forward. Fisker Ocean One User Instructions do not correspond correct with the actual user vehicle interface as items are missing or not available on th…
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Fisker Ocean One has less than 6K mileage and breaking system is extremely rough and makes lots of noise and squeaks, clash, etc. with abrupt halt sometimes throwing passengers forward. Fisker Ocean One User Instructions do not correspond correct with the actual user vehicle interface as items are missing or not available on the vehicle to correct safety issues per manual vehicle instructions per ADAS instructions therefore vehicles onboard computer is not able to be adjusted. Vehicle will speed up at time and or slow down on own just by barely touching vehicles accelerator driver having to hit brake quick as to not accidently hitting someone infront or trying to speed up as to not going to slow. When barely touching brake pad vehicle does brake abrupt will throw passengers forward. Have spoken and placed multiple tickets with Fisker for many issues on the vehicle for electrical, vehicle shutdown, battery problems and more. Yes available for inspection request. Problem has been reproduced on a daily basis and reported to Fisker. Vehicle has been inspected by Fisker customer support once and was told an update is coming to fix issues however until issues are fixed drivers will have to be careful and maneuver while driving. Fisker Ocean One warnings pop up continuously on my vehicle on the drivers screen nonstop from the time I step into the vehicle until I step out of the vehicle and lock the door. Warnings showed up on the Fisker Ocean One immediately when Fisker dropped the vehicle off at my home and I immediately began to contact Fisker Customer Support from day one with started DEC 2023
NHTSA ODI #11590635
Mileage unknown · May 15, 2024
Forward Collision AvoidanceService BrakesUnknown Or Other
Fisker’s long-awaited 2.0 software update failed to correct the frequent failures of emergency braking and regenerative braking (ADAS features such as lane keep assist, blind spot monitoring, forward facing camera are also regularly malfunctioning) two new problems presented themselves; the car will throw itself into park appare…
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Fisker’s long-awaited 2.0 software update failed to correct the frequent failures of emergency braking and regenerative braking (ADAS features such as lane keep assist, blind spot monitoring, forward facing camera are also regularly malfunctioning) two new problems presented themselves; the car will throw itself into park apparently when it registers a traffic light shift from red to green (as I have been waiting at a light all 4 times this has happened it puts me in danger of rear end collisions) and the downward motion of the brake in one instance was limited to about 1/2” meaning all braking I did was done in short quick choppy bursts. The pedal felt like it was pressing down on something stuck beneath it (there wasn’t anything there.) For this reason I have filed Lemon Law paperwork with an attorney in CA, a Better business Bureau complaint in CA and have leased a new car because I no longer feel safe driving the Fisker ocean one. The problems all appear to be software related, the company no longer responds to service requests and they have already attempted fixes on the car four separate times in the 5 months I’ve owned it.
NHTSA ODI #11588879
Mileage unknown · May 13, 2024
Forward Collision AvoidanceService BrakesUnknown Or Other
My Fisker has had multiple issues from the beginning. Seat sensor does not allow you to shift the car into drive or reverse. I had to shake my butt to get it into gear. There are at times that when I drive it goes into park for no reason. When it comes to braking it does this skip feeling which is very alarming. ADA notification…
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My Fisker has had multiple issues from the beginning. Seat sensor does not allow you to shift the car into drive or reverse. I had to shake my butt to get it into gear. There are at times that when I drive it goes into park for no reason. When it comes to braking it does this skip feeling which is very alarming. ADA notifications are constantly alerting (pretty much daily) where Auto Emergency Braking, Blind Spot warning, Forward Collision Warning are not working on a daily basis, especially in rain and when the sun rises and sets - it is a constant distraction. So n a nutshell here are the major issues: - ADA alerts constantly - When braking there is skipping (not all the time but more so when you really have to quickly brake - Seat sensor in the seat - must shake your butt to get it into gear due to it not being in the right place perhaps? (it's been serviced twice) - Skipping while braking hard -Fob key lags a lot, I believe it's a safety issue that you can't get in your car when needed especially in areas that are not so nice and as a female you should not be scared if your car will open or not - Not a safety issue but I do want to point out my vents turn on high and hot every time I get in the vehicle and need to turn it off
NHTSA ODI #11588516
Mileage unknown · May 8, 2024
SeatsUnknown Or Other
The vehicle will not go into drive or reverse unless you move to the front edge of the driver seat. The vehicle will go into park whenever you come to a stop, whether at traffic lights, in traffic at a roundabout, or on the highway when there is a lot of traffic. Due to the first issue of getting it into drive, this becomes pr…
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The vehicle will not go into drive or reverse unless you move to the front edge of the driver seat. The vehicle will go into park whenever you come to a stop, whether at traffic lights, in traffic at a roundabout, or on the highway when there is a lot of traffic. Due to the first issue of getting it into drive, this becomes problematic when you have to move the front edge of the seat to get it back into gear.
NHTSA ODI #11587668
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.