NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
883 reportsMileage unknown · May 1, 2024
Electrical SystemEngineFuel/propulsion System
I was driving at 50 mph, midday, on a local road. All of a sudden, got a motor error, the motor light came up in red on the dash, all safety lights turned on on the dashboard - brake, adaptive assist (ADAS), motor fault, no safety features available. The car would not accelerate wit pushing the pedal and the car lost all propu…
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I was driving at 50 mph, midday, on a local road. All of a sudden, got a motor error, the motor light came up in red on the dash, all safety lights turned on on the dashboard - brake, adaptive assist (ADAS), motor fault, no safety features available. The car would not accelerate wit pushing the pedal and the car lost all propulsion. I was able to coast to the side of the road and come to a stop. No brakes were functional.
NHTSA ODI #11586422
Mileage unknown · May 1, 2024
Service Brakes
My 2023 Fisker Ocean One automatically/randomly shifts into PARK, with the parking brake on, when I come to a stop, and sometimes doesn't come out of PARK when I press the PARK button and shift into DRIVE. For example, the car is in DRIVE, I come to a complete stop at a stoplight and the car automatically shifts itself into PA…
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My 2023 Fisker Ocean One automatically/randomly shifts into PARK, with the parking brake on, when I come to a stop, and sometimes doesn't come out of PARK when I press the PARK button and shift into DRIVE. For example, the car is in DRIVE, I come to a complete stop at a stoplight and the car automatically shifts itself into PARK. I press the PARK button to disengage the parking brake, shift into DRIVE, and the car automatically shifts itself back into PARK. Sometimes I need to put it back in DRIVE multiple times (3, 4, or 5 times) before it finally stays in DRIVE. I reported this issue to Fisker on March 27th, followed up with them on April 5th and April 23rd with no resolution. The issue first occurred when I received an OTA software update prior to March 27th, but I waited a little while to report it because I was hoping it would fix itself as other issues sometimes do with Fisker.
NHTSA ODI #11586414
Mileage unknown · May 1, 2024
EnginePower TrainService Brakes
On [XXX] I opened a service ticket with Fisker for my Fisker Ocean One, Vin# [XXX] . On my drive to work the vehicle suddenly and very unexpectedly shuttered to a halt in the mist of driving. The times of the restarts were, [XXX], [XXX] and [XXX] and [XXX]pm. It was a clear day; everything was normal prior to the first episode a…
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On [XXX] I opened a service ticket with Fisker for my Fisker Ocean One, Vin# [XXX] . On my drive to work the vehicle suddenly and very unexpectedly shuttered to a halt in the mist of driving. The times of the restarts were, [XXX], [XXX] and [XXX] and [XXX]pm. It was a clear day; everything was normal prior to the first episode at 1:17pm. After the third episode the " driver attention/alerts" came on unexpectedly too. After reaching my destination I performed a soft reboot which did not resolve the problem. Subsequently, on [XXX], at [XXX]am and again at [XXX]am, my vehicle shuttered to a stop and restarted in the middle of a busy road. After the second incident I did a soft reset and proceeded to my destination without any further issues. Yet again on [XXX] around [XXX]pm, my vehicle shuttered to stop in the middle of traffic, it then proceeded to reboot before allowing me to drive on. Nothing unusual preceded the incident and the vehicle was driven home with not added issues. On [XXX], between [XXX] today my FOO suddenly and unexpectedly shuttered to a stop no less than 6 times. On [XXX], the vehicle shuttered to a stop in the middle of traffic. Multiple events occurred sometime between [XXX]am and [XXX]am. On [XXX], the vehicle again shuttered to a stop, 2 times on the way home, again in the middle of traffic. All incidents where formally reported to Fisker at support@fiskerinc.com and I rec'd confirmation of receipt Case numbers [XXX] and [XXX]. Through online resources I was able to find the contact information of a Fisker Service Center in Vista, CA (which isn't close to me, 80 miles away but I was willing to have the vehicle towed). I made an appt then they cancelled the appt after realizing that I found their contact information through online sources. So instead of helping they became petty and told me I'd have to until a service center opens closer to me. [XXX} INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11586284
Mileage unknown · Apr 30, 2024
Back Over PreventionLane Departure
The sensors aren’t reliable. Some days, the sensors work and some days they don’t. While I still utilize the skills from driving without these sensors, there will be a time where the sensor may turn off without me knowing and cause an accident because I can’t safely rely on them
NHTSA ODI #11586198
Mileage unknown · Apr 30, 2024
Electrical SystemService Brakes
While driving and pulling out of the parking lot, the parking brake engaged on its own, preventing me from accelerating and almost causing a car accident.
NHTSA ODI #11586196
Mileage unknown · Apr 30, 2024
Electrical SystemStructure
The car door handle did not extrude itself despite being unlocked. A child was in the car, in the middle of the day, and I was unable to open the door to retrieve the child. If my wife was not in the car to open it from the inside, we could have had a fatal situation on our hands. There have been numerous situations where the c…
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The car door handle did not extrude itself despite being unlocked. A child was in the car, in the middle of the day, and I was unable to open the door to retrieve the child. If my wife was not in the car to open it from the inside, we could have had a fatal situation on our hands. There have been numerous situations where the car would also fail to unlock randomly.
NHTSA ODI #11586192
Mileage unknown · Apr 29, 2024
Forward Collision AvoidancePower TrainService Brakes
Several incidents with this car. All available for inspection. 1. Brakes dont work intermittently and then engage or release at random. We could have ran into a car when the brakes "released"randomly while pressing down the pedal. There is a brake malfunction light that comes on with. a loud gong when we start the car up. 2. …
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Several incidents with this car. All available for inspection. 1. Brakes dont work intermittently and then engage or release at random. We could have ran into a car when the brakes "released"randomly while pressing down the pedal. There is a brake malfunction light that comes on with. a loud gong when we start the car up. 2. Mark the Fisker deck said has reproduced and says he feels like there is bag of rattlesnakes at the pedal set. Both the accelerator and brake pedals have crunching noises and do not work properly. Mark says he has no idea why and can't do anything about it. 3. Manufacturer has not inspected the mechanical part of the car. Hard to get anyone to do anything over there, almost zero communication from the service center. This is a lemon car with massive safety issues. Even Chase, the note holder has reached out to us to get info on the mechanical and software problems. Asked if we wanted a buyback from the company which we do.we do.
NHTSA ODI #11585921
Mileage unknown · Apr 28, 2024
Forward Collision AvoidanceVisibility/wiper
The windshield fogs up in our Seattle weather extremely fast. Faster than any car I've been in. It only clears up if we have the defrost on high but only to the windshield. It won't work if we do windshield and feet. This leaves people in the back seat cold because their air controls won't work. Also, since the 2.0 update, …
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The windshield fogs up in our Seattle weather extremely fast. Faster than any car I've been in. It only clears up if we have the defrost on high but only to the windshield. It won't work if we do windshield and feet. This leaves people in the back seat cold because their air controls won't work. Also, since the 2.0 update, if you turn on the front windshield defogger, the heat turns on all the way up and the fan turns all the way up. If you turn either down, they turn back up. So if it's 70 and humid and your windshield fogs up, the only way to clear it is with an extremely hot car. In addition to these issues, the forward collision warning and the automatic emergency braking don't work if it's raining or if it's too bright out. Again, fisker said this would be fixed with the 1.11 update and then with the 2.0 update but it has gotten worse. This car is dangerous to have children in it. Ive asked them to work with me on a buy back and I was told yes many weeks ago until they finally told me they don't do that. Now I'm finally filing these complaints so the car can be investigated. Fisker has ignored my emails to fix these issues.
NHTSA ODI #11585695
Mileage unknown · Apr 28, 2024
Lane DepartureSteering
This car is supposed to have lane keep assist and lane departure warning. When it goes off, instead of push the car back towards the center of the lane, it's pulling it towards line. The car is constantly trying to drive "on" the line vs between the lines. Fisker will not acknowledge it as an issue and has told me that 1.11 w…
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This car is supposed to have lane keep assist and lane departure warning. When it goes off, instead of push the car back towards the center of the lane, it's pulling it towards line. The car is constantly trying to drive "on" the line vs between the lines. Fisker will not acknowledge it as an issue and has told me that 1.11 will fix it (it did not), then they told me that 2.0 will take care of all of those issues (it did not). The car is also constantly reporting ghost cars in the blind spot on the highway. Instead of fixing the issue, they just turned off the sound but the lights still flash.
NHTSA ODI #11585694
Mileage unknown · Apr 28, 2024
Forward Collision AvoidanceService BrakesVehicle Speed Control
This car is scary to drive. When I go over bumps in the road (man hole cover, railroad tracks, damaged road, etc) and hit my brakes, the car speeds up. When I'm using cruise control and I go over some kind of bump, the cruise will disengage and the regenerative braking kick on instantly. These events only happen over certa…
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This car is scary to drive. When I go over bumps in the road (man hole cover, railroad tracks, damaged road, etc) and hit my brakes, the car speeds up. When I'm using cruise control and I go over some kind of bump, the cruise will disengage and the regenerative braking kick on instantly. These events only happen over certain bumps and make it hard to expect. I've almost gotten rear ended on the highway changing lanes in cruise control and Ive been close to rear ending others as I've tried to come to a stop so many times. I have a 17 month old toddler and this is my only vehicle to get him around. I've asked fisker for help and they keep telling me to wait for updates and the latest update made it worse. This has happened since I've gotten the car and it's happened at all speeds. There are only 6000 miles on my car.
NHTSA ODI #11585693
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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