NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes complaints
302 reportsClear category filterMileage unknown · May 25, 2026
Service Brakes
Vehicle has unresolved NHTSA Safety Recall 24V-405 (brake warning light display noncompliance). Brake warning illuminated at startup during dealer inspection on [XXX]. Vehicle is on OS 1.1.49 — recall remedy requires OS 2.1 before sale. Fisker's own recall documentation states vehicles must be updated before being released for s…
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Vehicle has unresolved NHTSA Safety Recall 24V-405 (brake warning light display noncompliance). Brake warning illuminated at startup during dealer inspection on [XXX]. Vehicle is on OS 1.1.49 — recall remedy requires OS 2.1 before sale. Fisker's own recall documentation states vehicles must be updated before being released for sale. Dealer Axio EV, Salt Lake City UT is actively marketing this vehicle at $22,988 without completing the required recall remedy. When safety concern was raised, dealer responded 'then don't buy the car.' Six total open recalls on this vehicle, none disclosed to consumer. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11739914
Mileage unknown · Jan 24, 2026
Forward Collision AvoidanceService Brakes
I had the vehicle updated to version 2.3.3 by a technician because my car would not update OTA. I thought this update would resolve the ADAS problems as well as the breaking problems. However, on three separate occasions my vehicle has come to an abrupt stop with automatic breaking when approaching a redlight / intersection wi…
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I had the vehicle updated to version 2.3.3 by a technician because my car would not update OTA. I thought this update would resolve the ADAS problems as well as the breaking problems. However, on three separate occasions my vehicle has come to an abrupt stop with automatic breaking when approaching a redlight / intersection with no other vehicles in front of me. This occurred while manually applying the break and then the car just took over. There were no forward collision warnings, rather the car was automatically forced to shuttering stop. An alert appears that the brake system has malfunctioned followed by both LED screens turning off and on. The break malfunction error appears several times. Eventually, the screens will restart and then when you try to put the car into gear a gear shift error appears and the car will not go into gear leaving me stranded in traffic. On one occasion these errors appeared when the car started up in a parking lot. These events are unpredictable and not tied to any visible obstacle. The vehicle cannot reliably receive over-the-air software updates due to persistent connectivity failure as I have tried updated to SW Version 2.5. As a result, both the past federally mandated safety recall remedies could not be delivered not any future updates. I have personally paid out of pocket for recall-related repairs and have not been reimbursed. I have not been contacted regarding replacement of recalled exterior door handles. Break and/or shift errors have occurred on May 28, 2025, Sept 3, 2025, Dec 3, 2055, Jan 9, 15, and 21 2026.
NHTSA ODI #11713093
Mileage unknown · Aug 6, 2025
Service Brakes
In May of 2025 we received this email. We have written them 10 times with recall info and also in need of service. We have never received a response. We would love to get the car looked at and fixed, but no one has been able to help us. Our first 6 months with the vehicle, the key Fob stopped working multiple times and I had to …
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In May of 2025 we received this email. We have written them 10 times with recall info and also in need of service. We have never received a response. We would love to get the car looked at and fixed, but no one has been able to help us. Our first 6 months with the vehicle, the key Fob stopped working multiple times and I had to get someone to pick up my kids, as I was stranded. As for the brakes, they shoot us forward every now and again when pressed. It is very scary. Dear Ocean Owners: Enrollment for repair as well as reimbursement for published NHTSA ( [XXX] ) recalls on the model year 2023 Fisker Ocean is now open until August 31st 2025. If your vehicle is in need of recall related work performed please email [XXX] and include your vehicle identification number, full name address and phone number. You will be contacted and scheduled for required repairs. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11678928
Mileage unknown · Jul 29, 2025
Electrical SystemLane DepartureService Brakes
The Break System is malfunctioning. ADAS System Malfunctioning. Internet problem. The driver's side left HVAC is making a cracking sound. I received a Recall message from the manufacturer and NHTSA, but the person from the dealership service is not going to fix the problem, and he says the message is not Valid. Please help me g…
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The Break System is malfunctioning. ADAS System Malfunctioning. Internet problem. The driver's side left HVAC is making a cracking sound. I received a Recall message from the manufacturer and NHTSA, but the person from the dealership service is not going to fix the problem, and he says the message is not Valid. Please help me go through this. And he is not going to honor the warranty. FYI, I also uploaded a picture and Text copy of the message from the manufacturer and NHTSA. Dear Ocean Owners: Enrollment for repair as well as reimbursement for published. NHTSA recalls [XXX] the model year 2023 Fisker Ocean are now open until August 31st, 2025. Suppose your vehicle is in need of recal related work performed. Please email [XXX] and include your vehicle Identification number, full name, address, and phone number. You will be contacted and scheduled for required repairs. If you have previously had recall-related work on your Ocean performed by a third-party repair provider, and seek reimbursement. Please email [XXX] and include your vehicle identification number, full name, address, and phone number. Please include receipts clearly demonstrating the work performed and the repair center that performed them. You will be contacted for reimbursement processing as soon as possible. Thank you INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11677077
Mileage unknown · Jul 16, 2025
Electrical SystemService BrakesUnknown Or Other
Issues since we got the car
NHTSA ODI #11673985
Mileage unknown · Jul 9, 2025
Electrical SystemService BrakesUnknown Or Other
Dear Sir or Madam, I am writing to file a formal complaint regarding a critical safety failure of my Fisker Ocean One. This incident involved a sudden and total loss of power while driving, which created a severe safety hazard for myself and other motorists. Date of Incident: [Date the incident occurred] Location of Incident: …
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Dear Sir or Madam, I am writing to file a formal complaint regarding a critical safety failure of my Fisker Ocean One. This incident involved a sudden and total loss of power while driving, which created a severe safety hazard for myself and other motorists. Date of Incident: [Date the incident occurred] Location of Incident: [Name of Highway, City, State, e.g., Interstate 35, Austin, TX] Detailed Description of the Incident: On [Date of Incident], while I was operating my Fisker Ocean One on the highway, the vehicle experienced a sudden and complete loss of motive power without any prior warning. The vehicle decelerated and came to a stop in a live traffic lane, rendering it a dangerous obstruction. Immediately following the power loss, I made multiple attempts to restart the vehicle and engage "Drive." The vehicle's systems were unresponsive. Despite repeated efforts, the gear selector would not shift into drive, and the vehicle remained immobile. Shortly after these failed attempts, the vehicle's entire electrical system powered off, leaving the car completely disabled on the highway. This catastrophic failure created an extremely dangerous situation, leaving me stranded in a vulnerable position and at high risk of being struck by other vehicles. The inability to move the car, even to the shoulder, constitutes a grave design or manufacturing defect. Given that the manufacturer, Fisker Inc., has declared bankruptcy, I am not filing this complaint with the expectation of a warranty repair or corporate response. Instead, I am submitting this report to formally document this dangerous defect for public safety records and to urge your agency to investigate this issue. The sudden and complete failure of the powertrain and electrical systems in the Fisker Ocean presents a significant risk to all owners and the public
NHTSA ODI #11672166
Mileage unknown · Jun 27, 2025
Electrical SystemService BrakesWheels
There are so many issues with this vehicle that started right from the beggining when I purchased it back 2023): •The sensors in the car beep frequently even when nothing is in the way. •When using the brakes, the car will sometimes abruptly brake aggressively •Middle console of the inside of the car makes random noises constant…
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There are so many issues with this vehicle that started right from the beggining when I purchased it back 2023): •The sensors in the car beep frequently even when nothing is in the way. •When using the brakes, the car will sometimes abruptly brake aggressively •Middle console of the inside of the car makes random noises constantly. •Wheels have no traction! Spin when going uphill. •Most importantly the vehicle shuts down automatically. NO warning or signs.
NHTSA ODI #11669772
Mileage unknown · May 25, 2025
Lane DepartureService BrakesStructure
I’m contacting NHTSA to let you know that I have an open recalls that I am trying to get performed. I would like to know how to get reimbursed for the ace recalls for my vehicle as it is crucial to get done ASAP. The issue I have with a car with only 200 miles is that the door handles don’t open properly and the air condition Ve…
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I’m contacting NHTSA to let you know that I have an open recalls that I am trying to get performed. I would like to know how to get reimbursed for the ace recalls for my vehicle as it is crucial to get done ASAP. The issue I have with a car with only 200 miles is that the door handles don’t open properly and the air condition Vents are not opening properly and there were numerous recalls that I would like to get performed and I’m not sure how to go about that with reimbursements . I am also having numerous lights on my dashboard for safety going on and off.
NHTSA ODI #11662988
Mileage unknown · May 24, 2025
Electrical SystemEngineService BrakesInjury
It has lots of faults in it. . 1. I got only one key( sometime works sometimes not), It asks for the key to put on NFS reader several times. 2. Transmission problem( it is so irritating when have an emergency to go somewhere and car doesn't gets starts, unable to do gear shifting . Sometimes while driving, especially standing in…
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It has lots of faults in it. . 1. I got only one key( sometime works sometimes not), It asks for the key to put on NFS reader several times. 2. Transmission problem( it is so irritating when have an emergency to go somewhere and car doesn't gets starts, unable to do gear shifting . Sometimes while driving, especially standing in the traffic areas or red lights, the gear has turned into P mode automatically, then it's hard to turn it back on D mode. People honks . 3. ABS (while driving , sometimes it stops automatically . I'm at the highest danger when cars are coming from behind on speed and my car stops instantly. 4. Hazardous signs( Many hazardous lights coming on screen without any reason) the car starts making noises .. 5. Tires (Bridgestone tires were their on my car when I bought it, it runs only 30-31000 and gone flat, no warranty is covered? Usually Bridgestone runs 80000 kms on other electric cars. Also, there is a tire pressure sign coming continuously from a year without any reason. I went CHK the tire many times and then I needed to change the tires, those are really expensive ( $2500). 6. Tailgate( Car doesn't let me pull out the tailgate ) errors showing on the screen as a malfunction in tailgate 7. Fisker app( it does not work properly, it doesn't let me lock , unlock ,start , shut the car off) also says missing your noble key. 8. Door handles( it has sensor problems, sometimes it doesn't work . I have to struggle a lot to open the car sometimes. Driver side door handle is cracked while driving without even touching the handle. The back door handle is permanently in .. I have to open the back door from inside. 9. Tools ( No basic tools were in the car like Jack,tool kit, charger , tire inflator etc. Hope you can take the actions on the requested problems. Thanks
NHTSA ODI #11662932
Mileage unknown · May 24, 2025
Service BrakesUnknown Or Other
We have issues with transmission, braking, AC, and warning lights as well as the radio.
NHTSA ODI #11662922
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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