NHTSA owner reports · September 18, 2026 snapshot.
Vehicle Speed Control complaints
52 reportsClear category filterMileage unknown · Aug 20, 2024
Electrical SystemVehicle Speed Control
I own a new Fisker Ocean One (electric SUV) and have been notified that there is a safety recall due to a water pump problem that can result in the vehicle suddenly entering limp mode (20 mph) unexpectedly. I'd like the problem fixed ASAP, but do not know how to get the service done. Fisker Inc. is going out of business, and a…
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I own a new Fisker Ocean One (electric SUV) and have been notified that there is a safety recall due to a water pump problem that can result in the vehicle suddenly entering limp mode (20 mph) unexpectedly. I'd like the problem fixed ASAP, but do not know how to get the service done. Fisker Inc. is going out of business, and although they sent me a notification about the safety recall, they provided a phone number to contact them (1-844-FISKER1) that is not in service. I don't care if I need to pay for the service myself... I just want to make sure that I'm driving a safe vehicle. Can anyone at NHTSA help me? No "additional details" seem relevant for this inquiry, so I have left them "blank"... PS: The NHTSA Campaign number is: 24V499 and the "voluntary safety recall campaign" is TSB30032401
NHTSA ODI #11609805
Mileage unknown · Aug 19, 2024
Vehicle Speed Control
I have been driving many times with cruise control on. With cruise control on and I hit a bump or pot hole in the road, the cruise control stops and the car immediately slows down. This happened many times as we drove [XXX] in Nevada and crossed cattle guards, and it has also happened while driving on two lane roads and I hit …
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I have been driving many times with cruise control on. With cruise control on and I hit a bump or pot hole in the road, the cruise control stops and the car immediately slows down. This happened many times as we drove [XXX] in Nevada and crossed cattle guards, and it has also happened while driving on two lane roads and I hit a pot hole or change in pavement levels. When the cruise control comes off, the cars slows down immediately as regenerative braking takes over. This is very dangerous on the highway to say the least!! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11609475
Mileage unknown · Aug 13, 2024
Electrical SystemVehicle Speed Control
On 3 occasions, the digital cluster screen has gone completely black, for couple of seconds, no visible driving speed, no visible anything on the screen, it is very unsafe to drive a vehicle not knowing at what speed you are traveling, no warning or no information about drive mode or battery charge info, very scary too
NHTSA ODI #11608329
Mileage unknown · Aug 11, 2024
Vehicle Speed Control
We(Myself, Wife and 2 kids) were driving from Houston to Galveston. Driving at around 60 mph. This vehicle all of sudden turns from Drive to Neutral by itself and Showing several warnings (Please see attached video). Not much traffic luckily, So, we took the exit safely, Hit the break and then everything comes back NORMAL immedi…
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We(Myself, Wife and 2 kids) were driving from Houston to Galveston. Driving at around 60 mph. This vehicle all of sudden turns from Drive to Neutral by itself and Showing several warnings (Please see attached video). Not much traffic luckily, So, we took the exit safely, Hit the break and then everything comes back NORMAL immediately as if nothing happens. We were on 2.0 software for several months. Have been using this vehicle since Nov 2023 and this happened first time.
NHTSA ODI #11607850
8,000 miles · Aug 2, 2024
Electrical SystemSeat BeltsVehicle Speed Control
The contact owns a 2023 Fisker Ocean. The contact stated while approaching a red light or a stop sign at approximately 10 MPH, the brake pedal was depressed while releasing the accelerator pedal, and the contact drove over a pothole or an object in the road and the vehicle accelerated at high speed, and then returned to normal o…
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The contact owns a 2023 Fisker Ocean. The contact stated while approaching a red light or a stop sign at approximately 10 MPH, the brake pedal was depressed while releasing the accelerator pedal, and the contact drove over a pothole or an object in the road and the vehicle accelerated at high speed, and then returned to normal operation. The contact was concerned that the failure might cause a crash. No warning light was illuminated. The contact also stated that occasionally while the vehicle was parked and attempting to unlock the vehicle, the key fob failed to connect to the vehicle leaving the contact with no other option but to unlock the vehicle manually. No warning light was illuminated. Additionally, the contact stated that while driving at an undisclosed speed with the seat belt engaged, the vehicle made a beeping sound as if the seat belt was not securely fastened. No warning light was illuminated. The vehicle was driven back to the residence. A dealer was not contacted. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 8,000.
NHTSA ODI #11606156
Mileage unknown · Jul 1, 2024
Exterior LightingPower TrainVehicle Speed Control
I am writing to formally notify the National Highway Traffic Safety Administration of a significant concern regarding Fisker Automotive’s failure to meet the deadline for a mandated recall and their neglect in providing me with a recall notice. As an owner of a Fisker Ocen One, I was made aware through Facebook that my vehicle …
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I am writing to formally notify the National Highway Traffic Safety Administration of a significant concern regarding Fisker Automotive’s failure to meet the deadline for a mandated recall and their neglect in providing me with a recall notice. As an owner of a Fisker Ocen One, I was made aware through Facebook that my vehicle was subject to a recall due to Incorrectly Displayed Warning Lights/FMVSS 135,101, NTHSA Campaign Number 24V405000 and Loss of Power, NHTSA Campaign Number 24V40400. The recall notice indicated that remedial action was to be completed on June 30, 2024. However, as of today, July 1, 2024, I have not received any communication from Fisker Automotive regarding this recall. Further, Fisker does not respond to email communication sent to support@fiskerinc.com or via phone at 844-347-5371. The lack of notification and the missed deadline for corrective action have left me with serious concerns about the safety of my vehicle and the potential risks it poses to my passengers and other road users. This delay also undermines the trust and reliability that consumers expect from automotive manufacturers, especially in matters as critical as vehicle safety recalls. I kindly request that the NHTSA investigate this matter to ensure that Fisker Automotive adheres to its obligations under the recall process and takes immediate steps to inform affected vehicle owners and remedy the identified defects promptly. I am looking forward to your prompt attention to this matter and would appreciate being kept informed of any developments regarding this issue.
NHTSA ODI #11597891
Mileage unknown · Jun 13, 2024
Electrical SystemEngineVehicle Speed Control
Vehicle will not operate in accordance with manufacturer's statements. I can floor the accelerator and it will slowly creep up in speed but never get above 30 mph. I cannot operate this vehicle safely. Fisker has tried to repair it but has had no luck and have gone completely silent without returning emails. I have called the cu…
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Vehicle will not operate in accordance with manufacturer's statements. I can floor the accelerator and it will slowly creep up in speed but never get above 30 mph. I cannot operate this vehicle safely. Fisker has tried to repair it but has had no luck and have gone completely silent without returning emails. I have called the customer service line and have been discounted after two hours on hold. I have video to send but NTHS does not allow videos.
NHTSA ODI #11594165
Mileage unknown · Jun 13, 2024
Service BrakesVehicle Speed Control
On June 8th my husband was driving the car for the first time and when he was coming to a stoplight the regen braking was active, he hit a bump a grinding noise was made, and it lurched us forward and put the car in park. My husband was confused and asked me how often the car does that, and it does it every time I drive it that …
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On June 8th my husband was driving the car for the first time and when he was coming to a stoplight the regen braking was active, he hit a bump a grinding noise was made, and it lurched us forward and put the car in park. My husband was confused and asked me how often the car does that, and it does it every time I drive it that I have just had to learn to try and compensate for it so that I do not get into an accident. What else am I supposed to do, it's the primary vehicle.
NHTSA ODI #11594160
Mileage unknown · Jun 12, 2024
Electrical SystemEngineVehicle Speed Control
Date is ongoing since November 2023. I am writing to report a safety concern related to the key fob of my Fisker Ocean One. On December 10 & 22, 2023, March 20 & 29, 2024, I have been locked out of the car for prolonged periods of time of more than 30 minutes and up to 5 hours. I have experienced daily failure to properly lock a…
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Date is ongoing since November 2023. I am writing to report a safety concern related to the key fob of my Fisker Ocean One. On December 10 & 22, 2023, March 20 & 29, 2024, I have been locked out of the car for prolonged periods of time of more than 30 minutes and up to 5 hours. I have experienced daily failure to properly lock and unlock the vehicle, once I am in the vehicle even when putting the key fob up next to the NCF reader, the vehicle notifies me that no key can be detected, and the car will not start/go into ready mode. Issues continues daily which leaves me stranded and unable to access the car in an emergency. I cannot properly secure the vehicle against theft and unauthorized use, and it deactivates the vehicle's immobilizer system. Continuous signal transmission from a defective key fob can drain the vehicle's battery leading to further reliability. I believe this is a significant safety issue that could potentially affect other Fisker Ocean owners. Vehicle has been in limp mode unable to accelerate and Fisker reps cannot repair for 75+ days. The vehicle is unsafe to operate, I cannot accelerate to get out of harms way or notify other operators that the vehicle is slowing and cannot maintain minimum speed in traffic.
NHTSA ODI #11593970
Mileage unknown · Jun 12, 2024
EngineVehicle Speed Control
I was approaching a red traffic light. I merged into the turn lane, hit a bump in the road and the car lunged forward on its own and accelerated. I was able to apply the brake and not hit the car in front of me. This was terrifying and put me and the cars ahead of me at risk. The car has not been inspected because Fisker Service…
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I was approaching a red traffic light. I merged into the turn lane, hit a bump in the road and the car lunged forward on its own and accelerated. I was able to apply the brake and not hit the car in front of me. This was terrifying and put me and the cars ahead of me at risk. The car has not been inspected because Fisker Service no longer answers the phone to help customers with safety or mechanical issues. You can be on hold for hours and then they hang up on you. There were no warning lamps or messages prior to the problem. The mobile technicians have been laid off so there is no help for customers with issues.06
NHTSA ODI #11593955
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.