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2023 Fisker Ocean

Owner reports · Recalls · Investigations

When problems were reported

Mileage at the reported incident

Limited mileage data: 72 of 883 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Electrical System. Review the 380 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes. Review the 302 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Forward Collision Avoidance. Review the 211 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

12 crash reports3 fire reports6 injury reports

Service Brakes complaints

302 reports
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Mileage unknown · May 10, 2024
Service BrakesVehicle Speed Control

Especially when traveling over rises or dips, or when accelerating after a school zone, the car frequently shakes, sometimes violently.

NHTSA ODI #11588185

Mileage unknown · May 10, 2024
Service Brakes

I was coming to an intersection. The regen braking system was activated. As I went to apply brakes hit a bump and brakes went soft and car would not slow down. Luckily no one was in front of me as I had to just go through the intersection onto an on ramp.

NHTSA ODI #11588049

Mileage unknown · May 10, 2024
Forward Collision AvoidanceService Brakes

We have experienced a consistent issue on a local street by our elementary child's school. We have contacted Fisker no fewer than 5-6 times since December 2023 about this issue. Fisker has consistently stated that an upcoming over the air (OTA) software update would fix this issue. We are currently on OS 2.0 and the issue sti…

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We have experienced a consistent issue on a local street by our elementary child's school. We have contacted Fisker no fewer than 5-6 times since December 2023 about this issue. Fisker has consistently stated that an upcoming over the air (OTA) software update would fix this issue. We are currently on OS 2.0 and the issue still persists. As the vehicle is going down a low grade hill towards a stop sign there is uneven pavement in the roadway. As we apply the brake petal on this uneven payment the Fisker Ocean One software gets confused and the car lurches forward as the ABS and emergency braking try to sort out the issue. Its very rattling as a driver to have this occur. Thankfully there hasn't been a car close enough in front of us or else we may have rear ended that vehicle. At times there is a crossing guard inside the box to direct traffic which is approximately 25-30 yards away. We have noticed this occurs both with the crossing guard and without the crossing guard in the active roadway. Not only is the crossing guard at risk but the students who are crossing the street to and from the school. The road is one lane each way so its not possible to avoid the uneven payment. The ADAS warning has also appeared on the digital dashboard with the earlier software (OS 1.1) numerous times and the infotainment screen would go blank for 24-36 hours with no explanation. As a driver you are not sure if this is "critical" or an on-going software issue.

NHTSA ODI #11588020

Mileage unknown · May 9, 2024
Service Brakes

The loss of regenerative braking that I have experienced over uneven roads. While driving over a speed bump, slightly bumpy road, and gravel, the vehicle accelerates without me having pushed anything. As a driver, I feel like I am out of control of my vehicle. No warning lights or alerts come on when it happens. When I say uneve…

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The loss of regenerative braking that I have experienced over uneven roads. While driving over a speed bump, slightly bumpy road, and gravel, the vehicle accelerates without me having pushed anything. As a driver, I feel like I am out of control of my vehicle. No warning lights or alerts come on when it happens. When I say uneven roads, I am driving over minor uneven terrain, not large potholes or bumps. This issue continues to endanger my life. The most concerning incident happened when I was coming down a hill preparing to stop at a stop sign that was parallel to a very busy street and my vehicle lurched forward. Luckily, I was just far enough away that I did not end up in oncoming traffic. I have repeatedly requested servicing for this issue and on every occasion Fisker has stated that its engineers are aware of the issue and they do not have a solution, so Fisker is not able to service my vehicle. From speaking with Fisker technicians and reading, I understand that the regenerative braking suddenly turns off over uneven terrain so the expected deceleration does not happen and instead the vehicle is lurched forward. I have owned the vehicle since February 24, 2024, and I have experienced the issue on 5 occasions. My vehicle was updated with the latest 2.0 software (and all attached modules) on April 24, 2024, and I have experienced the sudden loss of regenerative braking since receiving that update. I would gladly make the vehicle available for inspection upon request.

NHTSA ODI #11587951

Mileage unknown · May 6, 2024
Service Brakes

The brakes fail to operate when brake regeneration is active while driving over rough road surfaces. The brake pedal must be applied a second time in order to engage the power brake system.

NHTSA ODI #11587115

Mileage unknown · May 3, 2024
Electrical SystemService BrakesVehicle Speed Control

I have severe safety concerns about the malfunction of the vehicle’s regenerative braking system. Since I purchased the car, it has unexpectedly lurched forward during stop-and-go traffic on several occasions. This sudden and unpredictable acceleration poses a clear risk of collision and injury to both the vehicle’s occupants …

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I have severe safety concerns about the malfunction of the vehicle’s regenerative braking system. Since I purchased the car, it has unexpectedly lurched forward during stop-and-go traffic on several occasions. This sudden and unpredictable acceleration poses a clear risk of collision and injury to both the vehicle’s occupants and other road users. Despite multiple attempts over the past six months, Fisker has been unable to diagnose and repair this braking defect. As a result, I am left with a vehicle that is unsafe to operate under normal driving conditions. Fisker’s failure to address this problem promptly raises concerns about a potentially widespread defect affecting other 2023 Fisker Ocean vehicles." Please note that Fisker has responded to customer feedback and issued an over-the-air software update to improve the regenerative system, but the National Highway Traffic Safety Administration (NHTSA) is still investigating the braking problems.

NHTSA ODI #11586841

Mileage unknown · May 3, 2024
Forward Collision AvoidanceService BrakesSteering

When driving and releasing the accelerator, the regen kicks in to slow the car and provide deceleration and regeneration. During this time, you can feel the brake pedal vibrate. When allowing regen to kick in and suddenly driving over a bump or uneven surface, the regen turns off, and thus, the car gets pushed forward suddenly a…

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When driving and releasing the accelerator, the regen kicks in to slow the car and provide deceleration and regeneration. During this time, you can feel the brake pedal vibrate. When allowing regen to kick in and suddenly driving over a bump or uneven surface, the regen turns off, and thus, the car gets pushed forward suddenly as the part of deacceleration coming of the regen is not present. This ultimately translates into an increase in the stopping distance since the driver is under the assumption that the regen braking is going to be present. To compensate, when using the manual brake pedal, suddenly, the car responds by activating the ABS and momentarily continuing forward at a slightly faster speed for a few feet. In addition, with 2.0, it has been observed that the current braking is a mix of manual brakes and regen brakes. You can see while the system is working, your brake pedal is being compressed automatically while the regen is also being active. when driving over an even surface, the regen gets deactivated, and the brake pedal remains compressed and does not come back up as quickly as it should; it appears that during this time, you are basically pressing the pedal, and there is essentially no regen brakes working, and the manual brakes appear to be activating. Compounding my concerns are the numerous warning messages that have appeared on the vehicle's dashboard, including "Auto Emergency Braking unavailable - Drive carefully" and "Brake system malfunction - Service is required", "Lane Keep Assistance Deativated" "Front Facing Collision Camera Fault". No service tickets have been provided to track, and no prior tickets for vent issues have been addressed. Poor communication and service provided into evaluating and addressing these concerns and braking issues.

NHTSA ODI #11586754

Mileage unknown · May 3, 2024
Electrical SystemService Brakes

During Moderate Braking, while driving over a bump, the entire drivetrain and braking system with "let go", and it feels like a surge in the drivetrain. During this time braking is unresponsive until it re-engages the system. If attempting to replicate, and viewing the driver's information console, sometimes you can see the "t…

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During Moderate Braking, while driving over a bump, the entire drivetrain and braking system with "let go", and it feels like a surge in the drivetrain. During this time braking is unresponsive until it re-engages the system. If attempting to replicate, and viewing the driver's information console, sometimes you can see the "transmission" switch between Drive and Neutral and back to drive again. I have reported this to Fisker only weeks after receiving the vehicle in Sept 2023. They met me in a parking lot in San Diego, where "Taylor" a Magna Styer Engineering Technician for the ADAS system stated this was a known issue. Then in Dec 2023 or Jan 2024 the NHTSA reported that Fisker had fixed the problem - they have NOT, but since moving to Utah, the roads are a bit better than my original purchase location. On [XXX] while driving to work and when running over a very small bump in the road service on an exit ramp from [XXX], the regen braking and manual braking system released while driving, and my vehicle was propelled and continued through an intersection on a red light. This is becoming a common occurrence since the OS 2.0 update. Thankfully, there were no vehicles in the intersection and I made a sharp right turn and could not come to a complete stop. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI #11586729

Mileage unknown · May 2, 2024
Forward Collision AvoidanceService Brakes

The most critical issue is a malfunction in the vehicle's regenerative braking system, which has caused the car to lurch forward unexpectedly during stop-and-go traffic on several occasions since I purchased . This sudden and unpredictable acceleration poses a clear risk of collision and injury to both the vehicle's occupants an…

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The most critical issue is a malfunction in the vehicle's regenerative braking system, which has caused the car to lurch forward unexpectedly during stop-and-go traffic on several occasions since I purchased . This sudden and unpredictable acceleration poses a clear risk of collision and injury to both the vehicle's occupants and other road users. Despite several attempts to have Fisker diagnose and repair this braking defect over the past six months, the issue persists, leaving me with a vehicle that is unsafe to operate in normal driving conditions. Fisker's inability to resolve this problem in a timely manner raises concerns about a potentially widespread defect affecting other 2023 Fisker Ocean vehicles. Compounding my concerns are the numerous warning messages that have appeared on the vehicle's dashboard, including "Auto Emergency Braking unavailable - Drive carefully" and "Brake system malfunction - Service is required." These alerts, combined with the actual performance issues I have experienced, strongly suggest that there are significant problems with the braking system that could have catastrophic consequences if left unaddressed. I am aware that the NHTSA has already opened a Preliminary Evaluation (PE24001) into alleged braking performance issues in 2023 Fisker Ocean vehicles, and I believe my experience provides further evidence of the seriousness and scope of this problem. The fact that Fisker has not been able to effectively repair my vehicle despite multiple attempts underscores the need for a thorough investigation and a buy-back from Fisker. In addition to the braking issues, I have also experienced other concerning problems with my Fisker Ocean, including phantom battery drain, a malfunctioning camera, and a non-functional solar roof. Please expedite this so that i can get another car to safely drive my children to school.

NHTSA ODI #11586665

Mileage unknown · May 1, 2024
Service Brakes

My 2023 Fisker Ocean One automatically/randomly shifts into PARK, with the parking brake on, when I come to a stop, and sometimes doesn't come out of PARK when I press the PARK button and shift into DRIVE. For example, the car is in DRIVE, I come to a complete stop at a stoplight and the car automatically shifts itself into PA…

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My 2023 Fisker Ocean One automatically/randomly shifts into PARK, with the parking brake on, when I come to a stop, and sometimes doesn't come out of PARK when I press the PARK button and shift into DRIVE. For example, the car is in DRIVE, I come to a complete stop at a stoplight and the car automatically shifts itself into PARK. I press the PARK button to disengage the parking brake, shift into DRIVE, and the car automatically shifts itself back into PARK. Sometimes I need to put it back in DRIVE multiple times (3, 4, or 5 times) before it finally stays in DRIVE. I reported this issue to Fisker on March 27th, followed up with them on April 5th and April 23rd with no resolution. The issue first occurred when I received an OTA software update prior to March 27th, but I waited a little while to report it because I was hoping it would fix itself as other issues sometimes do with Fisker.

NHTSA ODI #11586414

Official recalls

6

24V865000 · Service Brakes, Hydraulic; Autohold Brake System/brake Hold:software

Nov 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.

24V623000 · Service Brakes, Electric:software/programming

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.

24V499000 · Electrical System:propulsion System:traction Battery:management System/energy Control Module (bms/becm)

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.

24V466000 · Structure:body:door:handle:exterior

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.

24V404000 · Electrical System:propulsion System:traction Battery:management System/energy Control Module (bms/becm):software

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.

24V405000 · Electrical System: Instrument Cluster/panel

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

4

PE24013 · 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.