NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
883 reportsMileage unknown · Feb 17, 2025
Electrical SystemExterior LightingService Brakes
I am writing to express my deep concerns regarding the ongoing issues that are being seen with the NHTSA recall campaign numbers 24V865000 and 24V623000. Specifically, the Advanced Driver Assistance System (ADAS) in my vehicle, which has become increasingly distracting and, frankly, dangerous due to an incomplete or failed 2.2 O…
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I am writing to express my deep concerns regarding the ongoing issues that are being seen with the NHTSA recall campaign numbers 24V865000 and 24V623000. Specifically, the Advanced Driver Assistance System (ADAS) in my vehicle, which has become increasingly distracting and, frankly, dangerous due to an incomplete or failed 2.2 Over-The-Air (OTA) update is a huge concern. As a responsible driver, I value the safety of not only myself but also those around me, and this situation and others we constantly hear about make me question the process of the recall. Every week, a number of vehicles are reported as undrivable post-OTA updates, with statistics indicating that approximately 2%-5% of owners experience this issue. Owner surveys suggest that comprehensive updates, which should resolve these issues, have been successfully completed in under 30% of vehicles which were attempted. Additionally, the alarming figures shared indicate that only around 10% of the fleet has been updated in over five weeks, despite submitting over 800 Vehicle Identification Numbers (VINs) and my VIN is not one of them. This inefficiency raises serious questions about the reliability of the process. Other safety issues include random indoor reading lights lite up randomly during driving (specially during night) really a concern and they don't turn off. The ADAS feature very premature suddenly disengages features, the scariest of all it resistive braking. I was almost met with an accident. Furthermore, the fact that there are only approximately 20 service personnel available nationwide, with a mere five traveling to assist customers whose cars are rendered undrivable, is simply unacceptable. This lack of support exacerbates an already troubling situation. I urge you to address these issues promptly and transparently. I hope to see improvements regarding the ADAS system and entire process of the OTA safety recalls. Thank you for your attention to this critical matter.
NHTSA ODI #11643205
Mileage unknown · Feb 17, 2025
Fuel/propulsion SystemUnknown Or Other
Recall for all water pump and software updates to 2.2
NHTSA ODI #11643165
Mileage unknown · Feb 17, 2025
Power TrainService BrakesStructure
Their are multiple recalls for Fisker Ocean One but none have been serviced and no contacts for recalls and service.
NHTSA ODI #11643161
Mileage unknown · Feb 17, 2025
Forward Collision Avoidance
too many software issues with so support and very hard to get help with this issues.. even if you find a technician they are ripping the pockets with high fees to fix the repairs and some repairs are getting fixed at all
NHTSA ODI #11643160
Mileage unknown · Feb 17, 2025
Lane Departure
AN OTA SOFTWARE UPGRADE WAS ATTEMPTED WITHOUT NOTICE. THE DOWNLOAD WAS INTERUPPTED AND NOT FINISHED. ERROR MESSAGES CONTINUE TO BE DISPLAYED ON THE DASH SCREEN. A FAULT ICON OF A DECLINE IMAGE (NEVER BEEN SCEEN BEFORE) NOW APPEARS AT 18mph AND DISAPPEARS BELOW 18mph. DEGREDATION OF RANGE IS APPARENT. RANGE DECREASES FASTER THAN …
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AN OTA SOFTWARE UPGRADE WAS ATTEMPTED WITHOUT NOTICE. THE DOWNLOAD WAS INTERUPPTED AND NOT FINISHED. ERROR MESSAGES CONTINUE TO BE DISPLAYED ON THE DASH SCREEN. A FAULT ICON OF A DECLINE IMAGE (NEVER BEEN SCEEN BEFORE) NOW APPEARS AT 18mph AND DISAPPEARS BELOW 18mph. DEGREDATION OF RANGE IS APPARENT. RANGE DECREASES FASTER THAN MILES DRIVEN. ORIGINAL SOFTWARE VERSION 2.0 BECAME 2.2.1. OTA 2.2 NEEDS TOP BE REPEATED DUE TO INTERRUP.
NHTSA ODI #11643158
Mileage unknown · Feb 17, 2025
Forward Collision AvoidanceService BrakesUnknown Or Other
I was told by the Fisker service center that my vehicle CANNOT receive the required safety recall software updates without also getting a new 12V battery installed. I would like the full cost of the safety recall to be covered including the necessary new battery. Also, I was charged $325 labor to have another recall done - to re…
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I was told by the Fisker service center that my vehicle CANNOT receive the required safety recall software updates without also getting a new 12V battery installed. I would like the full cost of the safety recall to be covered including the necessary new battery. Also, I was charged $325 labor to have another recall done - to replace the water pump. Here is a list of safety recalls for this vehicle and my current situation: 24V865000 (Regen Braking OTA-2.2) - cannot be completed on my vehicle without new 12V battery 24V499000 (Water pump) - I was charged $325 to complete the required safety recall 24V466000 (Door Handles) - inspection was not completed, service center asked for additional labor payment, which I refused to make. 24V405000 (Warning Lights OTA-2.1) - cannot be completed without new 12V battery 24V404000 (MCU/VCU Loss of Power OTA-2.1) -cannot be completed without new 12V battery To be clear, my vehicle's battery is fine, it is in normal condition for a 1-year old vehicle. It does not need to be replaced other than to perform the required safety recalls. I would like NHTSA to require the current bankruptcy holder of Fisker's assets to reimburse me for the labor cost of the required safety water pump replacement AND to pay the full cost of the other required safety recalls.
NHTSA ODI #11643154
Mileage unknown · Feb 17, 2025
Unknown Or Other
Local service provider can't perform recall work for the amount provided by the Trustee
NHTSA ODI #11643139
Mileage unknown · Feb 17, 2025
Forward Collision AvoidanceLane Departure
24V865000 was supposed to be fixed with an OTA update I received a few weeks ago. The OTA update took 2 separate 48 hour periods to finish so I was without my vehicle for over 4 days for this process but thankfully my car is still operable which can't be said for some others that have gone through this process. I was also inform…
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24V865000 was supposed to be fixed with an OTA update I received a few weeks ago. The OTA update took 2 separate 48 hour periods to finish so I was without my vehicle for over 4 days for this process but thankfully my car is still operable which can't be said for some others that have gone through this process. I was also informed by a service center that not all of the modules were updated and are not communicating effectively with the rest of the modules, opening me up to potential issues down the line. I'm writing to inform you that the issues this recall was supposed to fix have not been completely fixed and it seems they've opened up different issues from what I've experienced prior to the update. Issues not fixed that were supposed to be: 1-My vehicle does not always engage the brake hold when stopped causing my to roll forward or back depending on the incline of the road. 2-Warning lights are constantly flashing, especially at night or in inclement weather. I just completed an 800 mile round trip where I had warnings every mile or two that certain adas features were failing. For hours I experienced flashing lights and sounds were binging and bonging so frequently that I had to wear noise cancelling headphones and apply electrical tape to my dash to cover the area where all of the alerts were flashing. New issues after the software was installed: 1-My estimated and actual range, charge percent, and energy efficiency are drastically lower than they were before the update. I'm told that many of the other cars on this new software are unable to achieve the stated range except in the most optimal conditions. 2-Near constant fan noise above the rear view mirror at times. It comes and goes at random 24V499000 was also fixed recently but I was out of pocket about $400 for the work. My understanding was that recalls are paid for by the manufacturer. In addition to the money, I was also out 3 days time and had to travel over 400 miles to get the work done
NHTSA ODI #11643102
Mileage unknown · Feb 17, 2025
Electrical SystemService BrakesUnknown Or Other
NHTSA recall campaign numbers 24V865000, 24V405000 and 24V623000 As a result of a partial OTA SW update, my vehicle has bricked - battery is drained, leaving vehicle inoperable and inaccessible - I cannot even open the door to access the vehicle. I've have my 12v battery plugged in, but is drained beyond chargability and the ma…
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NHTSA recall campaign numbers 24V865000, 24V405000 and 24V623000 As a result of a partial OTA SW update, my vehicle has bricked - battery is drained, leaving vehicle inoperable and inaccessible - I cannot even open the door to access the vehicle. I've have my 12v battery plugged in, but is drained beyond chargability and the main HV battery will no longer accept a charge. My vehicle no longer functions, I cannot use it for daily nor even emergency needs. The experience I had following the 2.2 Over-the-Air (OTA) update attempt left my vehicle undrivable. I will need to incur additional expenses to have the necessary safety updates completed to restore my vehicle's functionality. This is supposed to be a free mandated safety recall. Moreover, a concerning trend regarding the frequency of issues reported by fellow owners after OTA updates, approximately 2% to 5% experience similar problems, rendering them undrivable during the 48-hour update window. This situation not only disrupts our daily lives but also raises serious concerns about the reliability of the software updates. I am particularly troubled by the statistics indicating that only around 10% of the fleet has been updated successfully after several weeks of attempts and successful complete updates are only in ~30% of those. My vehicle's braking system, particularly as it relates to its performance over rough terrain, has not yet been addressed even though we have attempted updates. I have experienced significant brake slippage and a loss of function, which poses a serious safety risk. I cannot afford to wait months for a resolution while I am forced to pay out of pocket for alternative solutions to ensure my vehicle is safe to drive. The limited number of service personnel available in the U.S., with only around 20 individuals servicing the entire country and merely 5 traveling nationwide to assist customers with undriveable vehicles. This scarcity is unacceptable - this needs to be addressed.
NHTSA ODI #11643096
Mileage unknown · Feb 17, 2025
Forward Collision AvoidanceUnknown Or Other
I have not been contacted by the manufacturer for previous mandated safety recalls including an issue with the water coolant pump and the software update to version 2.2 which is supposed to fix a number of software safety issues. With the company bankrupt, I have no idea how I will receive these safety recalls
NHTSA ODI #11643078
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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