NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
883 reportsMileage unknown · Dec 13, 2023
Forward Collision AvoidanceService BrakesVehicle Speed Control
Issue 1 : The car over bumpy roads loses the regenerative braking and accelerates. During this time (~1-2 sec), the manual brakes don't function and response is delayed but ultimately comes to life followed by the ABS functioning. Frequency of event occurrence: Multiple times. Issue 2 : The car detects false collision and autom…
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Issue 1 : The car over bumpy roads loses the regenerative braking and accelerates. During this time (~1-2 sec), the manual brakes don't function and response is delayed but ultimately comes to life followed by the ABS functioning. Frequency of event occurrence: Multiple times. Issue 2 : The car detects false collision and automatically brakes itself coming to a full stop even if there is no car/obstacle around. This has happened both at low (~ 10 mph) as wells as high speeds (~ 40 mph), both during the day as well as night. Frequency of event occurrence: 4 times. Fisker's response: The tech has tried to fix the problem twice during two different visits by updating the software version of the car. However, during the test drive he has reproduced the loss of regen and brake failure even after the software upgrade. Separately, while driving to work after the upgrade I have been able to reproduce the problem of false collision and braking. I have informed and updated both the customer care hotline, local Fisker contact, local supervisor and other Fisker team members. Multiple cases has been already created with the Fisker team about all issues.
NHTSA ODI #11559910
Mileage unknown · Dec 12, 2023
Electrical SystemFire
On 12/4/23, I parked the vehicle in my garage after driving approximately 40 miles. A strong burning plastic smell was present upon exiting my vehicle. Smell was not apparent in my vehicle. Contacted Fisker that day and told to not drive it except to move it out of my garage away from home and told tech will be contact me that d…
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On 12/4/23, I parked the vehicle in my garage after driving approximately 40 miles. A strong burning plastic smell was present upon exiting my vehicle. Smell was not apparent in my vehicle. Contacted Fisker that day and told to not drive it except to move it out of my garage away from home and told tech will be contact me that day or next. Created online service ticket on 12/6/23 after no contact by Fisker. On 12/8/23, Fisker contacted me about ADAS faults and updated rep on burning plastic smell. Rep noted file was not updated with this info. Rep indicated she would create ticket and I should hear from them shortly. No response ever received.
NHTSA ODI #11559652
Mileage unknown · Dec 11, 2023
Latches/locks/linkages
We took our brand new car on its first road trip and drove over 400 miles when the hood of the car suddenly flew up blocking our view while driving 55mph on 11/20/23. The hood bent forward hitting the front windshield leaving an etching of the Fisker logo on the glass but thankfully did not break it. The hood was bent up and d…
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We took our brand new car on its first road trip and drove over 400 miles when the hood of the car suddenly flew up blocking our view while driving 55mph on 11/20/23. The hood bent forward hitting the front windshield leaving an etching of the Fisker logo on the glass but thankfully did not break it. The hood was bent up and dented, damaging the side fenders as well as the brackets. We were lucky to have avoided a major accident since the hood totally obstructed our view driving high speed on a highway. Our car has been at a Fisker facility and the supposed plan is to inspect and replace the hood, brackets, fenders and possibly the front windshield. We know of multiple others who had the same experience and actually spoke to someone who had the same accident days before ours. Fisker is fully aware. There were no warning lamps or alarms on the dashboard prior to the hood releasing and hitting the windshield. The hood is held on by two supposedly tightened bolts and does not appear to have a secondary safety latch.
NHTSA ODI #11559626
Mileage unknown · Dec 3, 2023
Structure
Took delivery of the Fisker Ocean One on Saturday, December 2, 2023. Upon driving home in the freeway on Sunday, December 3, 2023, the hood flipped open and completely obstructed my view of the road. The hood slammed against the windshield (but did not break the windshield) and popped off the rear view mirror. Hood is bent, as w…
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Took delivery of the Fisker Ocean One on Saturday, December 2, 2023. Upon driving home in the freeway on Sunday, December 3, 2023, the hood flipped open and completely obstructed my view of the road. The hood slammed against the windshield (but did not break the windshield) and popped off the rear view mirror. Hood is bent, as well as causing body damage. The hood is supposed to be secured with two bolts in the front end. My assumption is that the hood was not properly secured prior to delivery. There was no way to know this was an issue unless you pulled off the front panel to examine the bolts and if they are securely fastened. Though no bodily injury occurred and no other vehicles were in the incident, this was incredibly dangerous as I had my full view obstructed, while traveling freeway speeds on the freeway. A ticket has been issued to the manufacturer but they have yet to examine the vehicle and the damages. Unknown if this is a design flaw or neglect by delivery team of inspections. There are now alerts or warnings about the hood not being secured.
NHTSA ODI #11558214
Mileage unknown · Nov 28, 2023
Forward Collision AvoidanceService BrakesCrashInjury
While driving southbound on I-95 from Washington, DC to toward Richmond, on a stretch of the highway with three lanes and a constant flow of traffic across all lanes, the driver ahead of me swerved to avoid two cars ahead of her who had stopped for unknown reasons. I saw her tail lights light up and then almost immediately watch…
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While driving southbound on I-95 from Washington, DC to toward Richmond, on a stretch of the highway with three lanes and a constant flow of traffic across all lanes, the driver ahead of me swerved to avoid two cars ahead of her who had stopped for unknown reasons. I saw her tail lights light up and then almost immediately watched her swerve only to see the practically parked cars in my lane (left-most). At this point my following distance was greatly reduced. I immediately stepped on the brake which vibrated and felt more plastic rather than elastic (which had happened a couple of times before at low maneuvering speeds but still applying braking force). With cold weather and slight rain at 9:50am ET, the car practically slid and I did not feel ABS engaging. It was as if the tires seized up. The car is supposed to have a full suite of ADAS features and Automatic Emergency Braking was supposed to be available from mid-2023 (whereas other features are allegedly delayed until later in the year). To say I was disappointed with the car's handling of this situation would be an understatement. 5,000 of these vehicles have been delivered across the world and about 3,000 to 4,000 in the US. Several others have reported issues/experiences like mine online. This car is simply not safe until the software has been rectified. We were led to believe that just infotainment and miscellaneous system software was lacking but clearly this is affecting critical safety systems. Another system known to work intermittently are the cameras. If that includes the radars/cameras in charge of safety features, that means those features also only work intermittently. The accident was low-speed and low-impact and two occupants (1 adult, 1 child) in the Fisker Ocean appear to be OK. The driver/sole occupant of the other vehicle initially reported she was OK and did not require a police report or medical attention but according to my insurance agency has since changed her claim to one of "injury".
NHTSA ODI #11557276
Mileage unknown · Nov 23, 2023
Forward Collision AvoidanceService Brakes
I'm driving on hill/uneven pavement, either foot off of the accelerator (regen engaged and on high) or foot on the brake pedal and actively pushing the brake. The brake disengages and the car lurches forward. Feels the the car is being push forward for a split second. Making it a dangerous situation. It happens offen And brake …
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I'm driving on hill/uneven pavement, either foot off of the accelerator (regen engaged and on high) or foot on the brake pedal and actively pushing the brake. The brake disengages and the car lurches forward. Feels the the car is being push forward for a split second. Making it a dangerous situation. It happens offen And brake rattling noise coming from the brake pedal when coming to a full stop
NHTSA ODI #11556567
Mileage unknown · Nov 22, 2023
Service BrakesVehicle Speed Control
I have experienced this issue 4 or 5 separate times. The issue seems to occur while driving over rough, uneven/bumpy roads. While driving over a bumpy road either with foot off of both pedals and regenerative braking engaged OR with foot on the brake pedal and actively/physically braking, suddenly and without warning the bra…
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I have experienced this issue 4 or 5 separate times. The issue seems to occur while driving over rough, uneven/bumpy roads. While driving over a bumpy road either with foot off of both pedals and regenerative braking engaged OR with foot on the brake pedal and actively/physically braking, suddenly and without warning the brake disengages and the car lurches forward with such force as to snap my head back into the headrest. I have been lucky that there were no pedestrians or other cars in front of me when these issues have occurred but unless it's fixed it's only a matter of time before it causes an accident. I have reported this issue to Fisker but have not heard back from them as to a fix. I have seen others reporting this issue as well in online forums such as Fiskerati.
NHTSA ODI #11556534
Mileage unknown · Nov 22, 2023
Lane DepartureStructure
*driver's door failed to open from the inside--door appear to be unlocked as the door handle on the outside was extended. Had to crawl across the center console to exit the vehicle *Blind spot and lane assit fail to function periodically (probably 50 percent of the time)
NHTSA ODI #11556509
500 miles · Nov 22, 2023
Service Brakes, Hydraulic
The contact owns a 2023 Fisker Ocean. The contact stated while driving 40 MPH and attempting to slow down, the brake pedal shuddered, and the vehicle displayed the "Regenerative Braking Offline” message on the instrument panel. The Advanced Driver Assistance System warning light was illuminated. The contact also stated that the …
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The contact owns a 2023 Fisker Ocean. The contact stated while driving 40 MPH and attempting to slow down, the brake pedal shuddered, and the vehicle displayed the "Regenerative Braking Offline” message on the instrument panel. The Advanced Driver Assistance System warning light was illuminated. The contact also stated that the failure began shortly after the vehicle received an over-the-air software update. The vehicle was not taken to the dealer or an independent mechanic to be diagnosed or repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 500.
NHTSA ODI #11556487
Mileage unknown · Nov 19, 2023
Back Over PreventionElectrical SystemFuel/propulsion System
I have had Fisker for over a month now and it is not a drivable vehicle at the moment as it poses serious safety issues with numerous parts or functionality showing errors and suddenly not available. I would like these issues to be addressed ASAP within 30 days. There is no service center or service or place available where I ca…
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I have had Fisker for over a month now and it is not a drivable vehicle at the moment as it poses serious safety issues with numerous parts or functionality showing errors and suddenly not available. I would like these issues to be addressed ASAP within 30 days. There is no service center or service or place available where I can take this vehicle to showcase the issues and where the appropriate fixes can be done, which to my mind are non-available. There are many owners on Facebook and other blogs complaining about these issues. Yesterday, I was about to rear-end the vehicle in front due to regenerative braking not working. This vehicle is not fit to be permitted for sale, more so in working condition, creating safety issues. Many safety features stop working in the middle of the drive. If my complaint is not addressed within 7 days, I will be forced to initiate legal action and also informing NTSA about the issues. This vehicle is not safe to drive as the functionality suddenly disappears, the vehicle fails to go into gear, regenerative breaking stops functioning, Lane keeping assist stops functioning, not able to open the vehicle, and most of the time remote or FOB is not working rendering the vehicle inoperable. This vehicle has been delivered to make or sustain the company. The management and the company have no regard for passenger safety and just rushed the vehicle to market. It is not a safe vehicle, with more than 25 issues with its various features, quite a few of them being related to safety. Please contact me for any further deatils.
NHTSA ODI #11555894
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.