NHTSA owner reports · September 18, 2026 snapshot.
Lane Departure complaints
122 reportsClear category filterMileage unknown · Feb 18, 2025
Lane DepartureService BrakesUnknown Or Other
The regen brake male function with any bump in the road making the control of the car more difficult especially when the regen has been engaged before hitting the bump in the road as the vehicle accelerates and now I have to slam on the brake to avoid getting close to the car in the front of me or and avoid rear-ending it. The A…
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The regen brake male function with any bump in the road making the control of the car more difficult especially when the regen has been engaged before hitting the bump in the road as the vehicle accelerates and now I have to slam on the brake to avoid getting close to the car in the front of me or and avoid rear-ending it. The ADAS malfunctions randomly and more often when any rain, fog, and or strong light is facing the vehicle. The emergency collision braking stops working, along with several other safety systems such as forward collision, blind spot, and lane-keeping assistance. When I was driving and had been relying on the blindspot monitoring and notification and wanted to change my lane there were no notifications, because the blind spot monitoring had stopped working, and I encountered another vehicle in the lane that I was trying to merge; it became very dangerous and now I had to take evasive action to avoid a collision. The driver's door with NFC does not work anymore. I received the following recall letters a while back. 24V865000 (Regen Braking OTA-2.2) 24V499000 (Water pump) 24V466000 (Door Handles) 24V405000 (Warning Lights OTA-2.1) 24V404000 (MCU/VCU Loss of Power OTA-2.1) My understanding is that some of these were supposed to be addressed through the OTA software upgrade OTA-2.1 and OTA-2.2 but as of this submittal I am still on 2.0 and have not received any OTA update. These problems are ongoing and thus there is no specific date that I can pick in the next section so I will just pick a random date.
NHTSA ODI #11643587
Mileage unknown · Feb 18, 2025
Lane DepartureService BrakesUnknown Or Other
24V405000 - Constant alerts are very distracting while driving, causing me to have to verify if the warnings can be ignored or if it is a major issue. This does not pertain to just one alert, but the automatic emergency braking warning, blind spot warning, lane departure warning, lane keeping assistance warning all send notifica…
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24V405000 - Constant alerts are very distracting while driving, causing me to have to verify if the warnings can be ignored or if it is a major issue. This does not pertain to just one alert, but the automatic emergency braking warning, blind spot warning, lane departure warning, lane keeping assistance warning all send notifications that they are not working at various times. Also, my version is at 2.2 part (2/3). It's not fully updated and I'm not certain if the fixes were implemented correctly. On 10/26/24 I went to see a mechanic, Roush Restorations LLC, who serviced my water pump recall. It cost approximately $230.
NHTSA ODI #11643576
Mileage unknown · Feb 18, 2025
Electrical SystemLane DepartureService Brakes
The car door would not open after many many attempts, red light notifications no longer activated or appeared, braking noise, and car would not shift initially
NHTSA ODI #11643530
Mileage unknown · Feb 18, 2025
Lane DepartureService BrakesUnknown Or Other
I received a letter from Fisker in Sep 2024 about NHTSA Campaign number 24V623 which was about braking Improvement Software update. It's now Feb 2025 and nothing has been received over the air. For the past several months there's a weird clicking feeling when applying the brake pedal and I assume that's what this Over the Air up…
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I received a letter from Fisker in Sep 2024 about NHTSA Campaign number 24V623 which was about braking Improvement Software update. It's now Feb 2025 and nothing has been received over the air. For the past several months there's a weird clicking feeling when applying the brake pedal and I assume that's what this Over the Air update was to address. The closest service place that can force an update is 60 miles from me. They charge $450 to this update and it's not a full update, so I don't even know if the brakes would be "fixed" by paying this amount. The above is my largest concern, but there are still the following recalls I can't get addressed: 24V499000 (Water pump) 24V466000 (Door Handles) 24V405000 (Warning Lights OTA-2.1) I live in Los Angeles and no one can fix these for me (not even the above service center that can do the software update due to lack of parts). The door handles feel like a miracle every time they open and the warning lights in the car go off CONSTANTLY while driving and there is no way to turn them off. They are a major distraction while dirivng both visually and audibly. This has been going on since I received the letter in September of 2024
NHTSA ODI #11643525
Mileage unknown · Feb 17, 2025
Electrical SystemLane DepartureUnknown Or Other
I hope this message finds you well. I am writing to express my deep concerns regarding ongoing issues with the NHTSA recall campaign numbers 24V865000 and 24V499000. I am writing to formally express my concerns regarding the OTA (Over-the-Air) update process for my vehicle. I received on OTA update to address 24V86500 Regen Brak…
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I hope this message finds you well. I am writing to express my deep concerns regarding ongoing issues with the NHTSA recall campaign numbers 24V865000 and 24V499000. I am writing to formally express my concerns regarding the OTA (Over-the-Air) update process for my vehicle. I received on OTA update to address 24V86500 Regen Braking Issues; some 4 weeks later my car is not operable. My high voltage battery shows 100% state of charge, but my range mileage eventually dropped to zero and remains there. Even after replacing the car's 12v battery, I cannot open the car let alone drive it. While I had a technician to my house to address my bricked car, I had her do the work for 24V49900 (water pump recall). As planned, the recall part was made available to her (and then to me) at no charge. However, the fee to replace it was $345 dollars, as seen in the attached itemized invoice. 1) I had to pay this out of pocket and there is at present no way for me to be reimbursed for the recall work. I am told a portal is coming to submit a claim for reimbursement from the bankruptcy trustee's designee, American Leasing. 2) The amount currently approved for water pump replacement is $175, meaning I will have paid an extra $170 out of pocket for work that was to have been covered at no cost to owners, as mandated by NHTSA. Additionally, I have had a Lane Departure Warning Failure indicator light that has remained on for about 6 months. At best, this is a distraction while driving. At worst, the system has not been operable for 6 months.
NHTSA ODI #11643240
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 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 16, 2025
Forward Collision AvoidanceLane DepartureService Brakes
I need software recalled done
NHTSA ODI #11643012
Mileage unknown · Feb 16, 2025
Lane Departure
1). Constant ADAS warnings can be a distracting safety issue. 2). Blind Spot Monitoring and Lane keep assist are constantly showing warnings about it being unavailable, it is a distracting and safety issue. 3). Replacement costs for Water Pump recall and door handles recall is not sufficient. Owners are still being forced to p…
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1). Constant ADAS warnings can be a distracting safety issue. 2). Blind Spot Monitoring and Lane keep assist are constantly showing warnings about it being unavailable, it is a distracting and safety issue. 3). Replacement costs for Water Pump recall and door handles recall is not sufficient. Owners are still being forced to pay for labour costs,I reached out to three different service providers and they quoted about 300 dollars in cost to get this work done.
NHTSA ODI #11643010
Mileage unknown · Feb 16, 2025
Lane DepartureService 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. 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. With 48-hour update windows, my vehicle becomes unusable for an extended period, which is highly inconvenient and concerning. Moreover, I've noted that partial updates are expected, potentially extending this downtime by another 48 hours. I have had a partial update that has left my vehicle in worse shape than before, what could happen if the process is tried again? This inconsistent performance is not only frustrating, but also poses a serious inconvenience to scheduling and executing such a process.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). This inefficiency raises serious questions about the reliability of the process. 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. Given these circumstances, I urge you to address these issues
NHTSA ODI #11643003
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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