NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes complaints
302 reportsClear category filterMileage unknown · Feb 13, 2025
Forward Collision AvoidanceService BrakesUnknown Or Other
Vehicle needs software update to 2.2 NHTSA (Campaign Number: 24V405000) but there is no contact regarding when this will happen. The ADAS Warning system has had a warning light on since I received the vehicle. I had to disable audible warnings because they were distracting and dangerous. Also, the vehicle needs a replaceme…
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Vehicle needs software update to 2.2 NHTSA (Campaign Number: 24V405000) but there is no contact regarding when this will happen. The ADAS Warning system has had a warning light on since I received the vehicle. I had to disable audible warnings because they were distracting and dangerous. Also, the vehicle needs a replacement water pump (NHTSA Campaign Number: 24V499000) and measurement of door handles (NHTSA Campaign Number: 24V466000). I have not used the vehicle for long trips for fear of water pump breaking causing me to be stranded. Fisker trustee has not made the recalls noted above available to me as an owner. I've been locked out of my car twice for 30+ minutes. The anxiety of being able to get into the vehicle is unnerving and I can not take my dog with me and leave him in the car as I run errands for fear of not being able to unlock the vehicle when I return, as happened to be in March 2024 and April 2024. The Trustee needs to be forced to provide all owners with the agreed upon recalls before he is freed from the trustee duties. It has been months and there is no contact on how to get these updates. Please help.
NHTSA ODI #11642512
Mileage unknown · Feb 13, 2025
Electrical SystemLane DepartureService Brakes
1. Various vehicle indicators warning (i.e collision malfunction, blind spot warning malfunction) 2. Rear passenger internal lights - stays on and does not turn off 3. Recall Water Pump - Paid out of pocket $195 to have replaced 4. Failure to install 2.2 Update 5. 12v Battery close to dying 6. Paid 3rd party company to purchase …
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1. Various vehicle indicators warning (i.e collision malfunction, blind spot warning malfunction) 2. Rear passenger internal lights - stays on and does not turn off 3. Recall Water Pump - Paid out of pocket $195 to have replaced 4. Failure to install 2.2 Update 5. 12v Battery close to dying 6. Paid 3rd party company to purchase extra Key Fob (Will pay out of pocket for digital sync) 7. App integration failure 8. Braking Issues 9. Door handle issues (Sometimes you are stuck inside the car) 10. Front Window Fog - Poor Visibility 11. Dime size crack on driver Window - Replacement issues
NHTSA ODI #11642496
Mileage unknown · Feb 13, 2025
Service BrakesUnknown Or Other
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. Multiple attempts of this safety recall have been scheduled over the past several weeks for my vehicle, but the update has yet to be completed. As an owner who values safety an…
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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. Multiple attempts of this safety recall have been scheduled over the past several weeks for my vehicle, but the update has yet to be completed. As an owner who values safety and reliability, I am increasingly concerned about the unresolved safety issues that were supposed to be addressed with this software update. To date, I have been disappointed to learn that each week brings reports from fellow vehicle owners indicating that their cars have become undrivable following these updates, with a concerning failure rate of approximately 2% to 5%. This is unacceptable for any customer who relies on their vehicle for daily transportation. Additionally, the lengthy 48-hour windows during which our cars become unusable only exacerbate the frustration and inconvenience faced by owners. The expectation of partial updates, followed by yet another potential 48-hour downtime, is not a practical solution. Furthermore, the feedback from owner surveys suggests that complete updates, which should ideally resolve these issues, have only succeeded in under 30% of attempted vehicles. This raises serious questions about the efficacy of the OTA update process and its implementation. I was also alarmed to learn that after five weeks of attempts, only about 10% of the fleet—approximately 300 vehicles—have been successfully updated, despite over 800 VINs submitted for these updates. The lack of service personnel, with only around 20 available nationwide and just five who can travel to address undriveable cars, only adds to the urgency of this matter. It is imperative that this process is reviewed and the underlying safety concerns that have left many of us feeling unsupported and frustrated are resolved in a manner that will be free of cost and successful to the majority of owners. Thank you for your attention to this matter.
NHTSA ODI #11642492
Mileage unknown · Feb 13, 2025
Forward Collision AvoidanceService Brakes
Fisker entered Chapter 7Bankrupty. As part of the court order certain recall work was to be completed and funding was given to do this to a company. I have to date only received partial software updates and not the full requirement of the recall to Software 2.2 that was ordered by the court. I also had to pay out of pocket for…
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Fisker entered Chapter 7Bankrupty. As part of the court order certain recall work was to be completed and funding was given to do this to a company. I have to date only received partial software updates and not the full requirement of the recall to Software 2.2 that was ordered by the court. I also had to pay out of pocket for a technician to replace by 12V battery because of software issues after partial installation. I have lost mileage distance since the new partial software as well. I paid out of pocket $247 for the required water pump recall and door handle inspections. Plus fees for a mobile technician. This is above the amount Liquidators Trustee is planning to pay of $175 (if they ever do). This car is a safety risk and the Trustee is not making a good faith effort to fix the required recalls. I have not been contacted even one time with a status. The NHTSA needs to force the trustee and bankruptcy judge to intervene.
NHTSA ODI #11642488
Mileage unknown · Feb 13, 2025
Forward Collision AvoidancePower TrainService BrakesCrash
NO Recall work performed on my car. Received notification of NHTSA Campaign Number: 24V499000 & Recall TSB10032403. NHTSA Campaign Number: 24V623000 (Service Brakes, Electric) Fisker Inc has gone out of business. A mandatory recall has been issued and the bankruptcy court has assigned a trustee to ensure vehicles are updated t…
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NO Recall work performed on my car. Received notification of NHTSA Campaign Number: 24V499000 & Recall TSB10032403. NHTSA Campaign Number: 24V623000 (Service Brakes, Electric) Fisker Inc has gone out of business. A mandatory recall has been issued and the bankruptcy court has assigned a trustee to ensure vehicles are updated to version 2.2 to address safety recall issues. The update to 2.2 has been extremely unpredictable and the trustee has not been able to complete this recall. I spent #300 for replace the water pump and another $200 for diagnostic work and there is no fix at the moment for the electric issues with the car (especially ADAS and blind spot) however the trustee is still responsible for rolling out this buggy software and possibly damaging more cars with each remote installation.
NHTSA ODI #11642459
Mileage unknown · Feb 13, 2025
Forward Collision AvoidanceLane DepartureService 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. The experience I had with my Fisker vehicle following the 2.2 Over-the-Air (OTA) update attempt left my vehicle undrivable. This is leaving me in an inconvenient and frustratin…
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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. The experience I had with my Fisker vehicle following the 2.2 Over-the-Air (OTA) update attempt left my vehicle undrivable. This is leaving me in an inconvenient and frustrating situation. As a result, I had to incur additional expenses to have the necessary safety updates completed to restore my vehicle's functionality. This is far from the experience that I expected when signing up for a free mandated safety recall. Also, Following an attempted OTA software update for the safety recall, I have noticed that the pedestrian alert noises are missing, which poses a significant safety risk not only for those around the car but also for the occupants inside the vehicle. Moreover, I've noticed a concerning trend regarding the frequency of issues reported by fellow owners after OTA updates. It appears that a significant percentage of vehicles—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. With such a limited number of service personnel available nationwide, it is alarming that many owners like myself are left without adequate support during these challenging times. I urge you to address these issues promptly, putting more vehicles in danger of becoming undrivable because of the safety recall process being flawed may not be helpful in this current process. Additionally, I would appreciate any assistance you can offer in resolving my current situation and compensating for the expenses incurred due to this inconvenience. Thank you for your attention to this matter.
NHTSA ODI #11642443
Mileage unknown · Feb 13, 2025
Forward Collision AvoidanceLane DepartureService Brakes
Brake pedal rattling occasionally, lane departure warning light constantly on, multiple warning signs pop up (charger door open, driver monitoring system, etc.). OTA update is not done. main screen goes dark while driving
NHTSA ODI #11642442
Mileage unknown · Feb 13, 2025
Forward Collision AvoidanceService BrakesUnknown Or Other
The brakes will have pressure then go beyond the original stopping point seemingly no to stop the car and first reaction is to press harder which causes the car to stop more abruptly than attended in the situation and causes panic with driver and potential a wreck from behind. ADAS warnings are constantly triggering especially …
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The brakes will have pressure then go beyond the original stopping point seemingly no to stop the car and first reaction is to press harder which causes the car to stop more abruptly than attended in the situation and causes panic with driver and potential a wreck from behind. ADAS warnings are constantly triggering especially when raining causing me to continuously look at the dash which can be a distracting safety issue. The lack of the legally required pedestrian alert noises are also a safety concern for those around the vehicle. NHTSA recall campaign numbers for the software recalls are 24V865000 and 24V623000
NHTSA ODI #11642421
Mileage unknown · Feb 13, 2025
Electrical SystemService Brakes
sudden power loss on road and car bricked . this is scary . as per my checks with technician says , this sudden brick is due to some modules issues(PCU/ICU) . water leak under hood and also causing car bricked brake fault . this is very scary we don't know when car suddenly stops while on road
NHTSA ODI #11642418
Mileage unknown · Feb 13, 2025
Electrical SystemForward Collision AvoidanceService Brakes
February 13, 2025 Vehicle is currently "bricked", no response is coming from the car with the fob or proximity unlocking device. This appears to be related to an un-announced over-the air update to the vehicle, which started overnight and without notice. The Brake lights flash periodically and the app on the smart phone do not r…
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February 13, 2025 Vehicle is currently "bricked", no response is coming from the car with the fob or proximity unlocking device. This appears to be related to an un-announced over-the air update to the vehicle, which started overnight and without notice. The Brake lights flash periodically and the app on the smart phone do not reflect any of this reality, and also do not unlock the vehicle. Further, the ADAS and brake systems have been glitchy, pulsing the brakes very inappropriately on wet and uneven roads. The ADAS will blink and alert with Sun, Rain, Snow all affecting the system, making for a VERY uncomfortable experience with poor braking management,
NHTSA ODI #11642416
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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