NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
380 reportsClear category filter8,000 miles · Feb 12, 2025
Electrical SystemService Brakes, Electric
The contact called on behalf of an employer who owns a 2023 Fisker Ocean. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed; however, the brake pedal failed to function as intended. The contact stated that when the brake pedal was depressed, the brake pedal pushed back the driver’s foot…
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The contact called on behalf of an employer who owns a 2023 Fisker Ocean. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed; however, the brake pedal failed to function as intended. The contact stated that when the brake pedal was depressed, the brake pedal pushed back the driver’s foot upwards. In addition, the contact stated that the vehicle failed to stop as intended. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The owner had received notifications of NHTSA Campaign Number: 24V623000 (Service Brakes, Electric) and 24V404000 (Electrical System); however, the parts to do the recall repairs were unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The failure mileage was 8,000.
NHTSA ODI #11642259
Mileage unknown · Feb 12, 2025
Electrical SystemExterior LightingForward Collision Avoidance
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. Of the cars that were…
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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. Of the cars that were updated, like mine, almost immediately the estimated range has been drastically reduced. The cars were marketed as getting up to 360 miles on 100% charge. Since the recall update, they now get somewhere around 220 miles on a 100% charge. That’s more than 100 miles lost. I had a technician analyze it with approved Fisker software, and he found that the rear motor is now throwing “flux error codes” and not functioning properly. This is causing an electrical issue draining the batteries much quicker than they should be. I spent $200 for diagnostic work and there is no fix at the moment however the trustee is still responsible for rolling out this buggy software and possibly damaging more cars with each remote installation.
NHTSA ODI #11642258
Mileage unknown · Feb 12, 2025
Electrical SystemPower TrainService Brakes
Inability to Schedule Recall Work + Lack of Availability 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 …
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Inability to Schedule Recall Work + Lack of Availability 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.
NHTSA ODI #11642246
Mileage unknown · Feb 12, 2025
Electrical System
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. Of the cars that were…
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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. Of the cars that were updated, like mine, almost immediately the estimated range has been drastically reduced. The cars were marketed as getting up to 360 miles on 100% charge. Since the recall update, they now get somewhere around 220 miles on a 100% charge. That’s more than 100 miles lost. I had a technician analyze it with approved Fisker software, and he found that the rear motor is now throwing “flux error codes” and not functioning properly. This is causing an electrical issue draining the batteries much quicker than they should be. I spent $200 for diagnostic work and there is no fix at the moment however the trustee is still responsible for rolling out this buggy software and damaging more cars with each remote installation.
NHTSA ODI #11642243
Mileage unknown · Feb 12, 2025
Electrical SystemEnginePower Train
The manufacturer was required by NHTSA to update the vehicle software to address critical safety issues. This effort was implemented through Over The Air (OTA) updates last fall. This software update was a very large and complex file and required the car to be "On" for the duration of the updates. This caused the 12 V battery…
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The manufacturer was required by NHTSA to update the vehicle software to address critical safety issues. This effort was implemented through Over The Air (OTA) updates last fall. This software update was a very large and complex file and required the car to be "On" for the duration of the updates. This caused the 12 V battery to drain beyond capacity, and the update was only partial, resulting in a non-operating vehicle. In order to remedy this situation, a local technician was needed to manually install this update, resulting in an $800 charge directly to me for this mandatory recall. The technician was able to "unbrick" my car, as well as complete the software update to the NHTSA required software level of version 2.2. Even after this update, my car is unreliable, and has safety issues with warning lights in the dash. There were 3 critical recalles issues by the NHTSA for this vehicle - 1) Software update, 2), Door handle function, 3) Coolant pump replacement to avoid "limp mode" in the drive train. I have had all of these issues coompleted on my vehicle, with an out of pocket expense of $800, which has not been reimbursed by the trustee for this company. The company (Fisker) is in bankrucy proceedings (chaper 7), and all responsibilities to get these recalls accomplished and paid for, have not been accomplished. The OTA team, and the trustee are not cooperating with the owners of these vehicles. We are all stuck and need an intervention by the NHSTA to help get these recalls and reimbursements completed.
NHTSA ODI #11642229
Mileage unknown · Feb 12, 2025
Electrical SystemService Brakes
Post 2.2 installation to address current recalls, vehicle is experiencing a loss of range. Additionally, installation of the update permanently damaged the 12v battery which required a replacement that I had to pay for out of pocket. 2.2 install process has been inconsistent, and has bricked multiple vehicles.
NHTSA ODI #11642224
Mileage unknown · Feb 12, 2025
Electrical SystemForward Collision AvoidanceService Brakes
Vehicle is stuck in middle of the software update issued. I can't get assistance to fix without a FAST tool to which American leasing is not releasing to Fisker Owners Association or any other shop. Therefore, the recall update has not been completed. I had to pay $330 to have the recalled water pump replaced to which the DOJ s…
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Vehicle is stuck in middle of the software update issued. I can't get assistance to fix without a FAST tool to which American leasing is not releasing to Fisker Owners Association or any other shop. Therefore, the recall update has not been completed. I had to pay $330 to have the recalled water pump replaced to which the DOJ stated customers aren't responsible for. I have left messages too. Ongoing intermitting braking conditions....
NHTSA ODI #11642213
Mileage unknown · Feb 12, 2025
Electrical SystemLane Departure
MY Ficker Ocean failed an over the air software update on [XXX]. The failure made my vehicle non drivable (could not shift out of Park). The car was parked in my garage for almost two months before a prior Fisker employee was able to look at it. Unfortunately they were not able to fix the software problem and requested I have t…
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MY Ficker Ocean failed an over the air software update on [XXX]. The failure made my vehicle non drivable (could not shift out of Park). The car was parked in my garage for almost two months before a prior Fisker employee was able to look at it. Unfortunately they were not able to fix the software problem and requested I have the vehicle transported to an authorized service center 60 miles away. I paid $200 to have the vehicle flatbed transported to Riverside, CA service center where it sat for a week and could not be repaired. I paid $180 to have the vehicle flatbed transported to Newport Fisker in Costa Mesa where they were able to reinstall the proper software and make the car drivable. It cost me $1000 to have the software updated and the vehicle "unbricked". I picked up my now operational vehicle at the end of October and soon started receiving the bright orange ADAS failure message: 1) ADAS System Failure, Some features limited or unavailable 2) The red ADAS Tell-tale light also remains illuminated. The blindspot detection and warning is no longer operational in my vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11642208
Mileage unknown · Feb 12, 2025
Electrical SystemPower TrainService Brakes
My car has few safety recalls to be addressed but with the bankruptcy of Fisker, we do not have proper means, parts, and technician to perform the recall fix.
NHTSA ODI #11642204
Mileage unknown · Feb 12, 2025
Electrical SystemService BrakesUnknown Or Other
The car automatically brakes falsely, which should have been fixed in an OTA 2.2 recall but hasnt. The ADAS is constantly warning without needing to. It can give ADAS warnings while the car is parked. The car is near undriveable. The recall updates have been partial at best. NHTSA recall 24V865000 and 24V623000 have not been add…
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The car automatically brakes falsely, which should have been fixed in an OTA 2.2 recall but hasnt. The ADAS is constantly warning without needing to. It can give ADAS warnings while the car is parked. The car is near undriveable. The recall updates have been partial at best. NHTSA recall 24V865000 and 24V623000 have not been addressed and there's been no attempt to try and fix these issues.
NHTSA ODI #11642203
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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