The car is generating a random left turn signal error stating the bulb is out. However, on inspection it appears that all bulbs are working. The car makes a fast blinker warning sound as well as notification. This has been happening for a couple of months but happened again yesterday.
2023 Fisker Ocean
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Ocean years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
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.
Electrical System complaints
380 reportsThe contact owns a 2023 Fisker Ocean. The contact received notifications of NHTSA Campaign Numbers: 24V466000 (Structure), 24V499000 (Electrical System), 24V623000 (Service Brakes, Electric), 24V865000 (Service Brakes, Hydraulic, AutoHold Brake System/Brake Hold), 24V405000 (Electrical System) and 24V404000 (Electrical System). …
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The contact owns a 2023 Fisker Ocean. The contact received notifications of NHTSA Campaign Numbers: 24V466000 (Structure), 24V499000 (Electrical System), 24V623000 (Service Brakes, Electric), 24V865000 (Service Brakes, Hydraulic, AutoHold Brake System/Brake Hold), 24V405000 (Electrical System) and 24V404000 (Electrical System). The contact attempted to reach the manufacturer but was unsuccessful since the company had filed for bankruptcy and was no longer in business. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure.
The contact owns a 2023 Fisker Ocean. The contact received notification of NHTSA Campaign Number: 24V499000 (Electrical System); however, the part to do the recall repair was not available. The contact had not experienced a failure but had an independent mechanic performed the repairs at the owner's expense. The manufacturer was…
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The contact owns a 2023 Fisker Ocean. The contact received notification of NHTSA Campaign Number: 24V499000 (Electrical System); however, the part to do the recall repair was not available. The contact had not experienced a failure but had an independent mechanic performed the repairs at the owner's expense. The manufacturer was contacted for reimbursement and mailed a cheque that covered half the cost of the repairs. The contact stated that the manufacturer had failed to complete the recall repair free of charge.
The contact owns a 2023 Fisker Ocean. The contact stated that the vehicle failed to start. A mobile mechanic diagnosed the vehicle at the residence. The mechanic determined that the main battery had failed, and there was no communication from the battery. The vehicle was not repaired. The manufacturer was not notified of the fai…
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The contact owns a 2023 Fisker Ocean. The contact stated that the vehicle failed to start. A mobile mechanic diagnosed the vehicle at the residence. The mechanic determined that the main battery had failed, and there was no communication from the battery. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 32,598.
The contact owns a 2023 Fisker Ocean. The contact received notifications of NHTSA Campaign Numbers: 24V499000 (Electrical System) and 24V466000 (Structure); however, the parts to do the recall repairs were not yet available. The contact stated that after the manufacturer went bankrupt, the court ordered the Trustee of the manufa…
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The contact owns a 2023 Fisker Ocean. The contact received notifications of NHTSA Campaign Numbers: 24V499000 (Electrical System) and 24V466000 (Structure); however, the parts to do the recall repairs were not yet available. The contact stated that after the manufacturer went bankrupt, the court ordered the Trustee of the manufacturer, Indigo, to complete the recall repairs; however, Indigo was contacted several times but had failed to arrange for the recall repairs. Additionally, the contact stated that after the recall repairs of NHTSA Campaign Numbers: 24V865000 (Services Brakes, Hydraulic; AutoHold Brake System/Brake Hold), 24V623000 (Service Brakes, Electric), 24V405000 (Electrical System), and 24V404000 (Electrical system) were performed over-the air, the vehicle experienced electrical failures. The contact stated that the vehicle failed to unlock and experienced complete loss of electrical power. The contact purchased a battery from Advance Auto and replaced the 12-Volt battery; however, the failure persisted. A mobile technician from Ocean Repair and Services LLC was contacted and arrived at the residence. The technician reprogrammed several modules, and the vehicle was repaired at the contact's expense. The contact later emailed Fisker’s Trustee, Indigo, via email at oceanrecalls@fiskerinc.com for reimbursement and was advised that the reimbursement claim was denied because the electrical failures were not related to the recalls. The failure mileage was approximately 2,000.
The contact owns a 2023 Fisker Ocean One. The contact stated that while driving at an undisclosed speed, the contact became aware of an abnormal coolant burning odor. The contact had received notifications of NHTSA Campaign Numbers: 24V499000 (Electrical System), 24V466000 (Structure), and 24V623000 (Service Brakes, Electric). T…
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The contact owns a 2023 Fisker Ocean One. The contact stated that while driving at an undisclosed speed, the contact became aware of an abnormal coolant burning odor. The contact had received notifications of NHTSA Campaign Numbers: 24V499000 (Electrical System), 24V466000 (Structure), and 24V623000 (Service Brakes, Electric). The contact stated that the unrepaired recalls could be performed because the manufacturer was no longer in business. The contact sent an email to the [XXX] , which was the point of contact; however, no correspondence was received within the past three months. The failure mileage was approximately 14,000. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Our Fisker Ocean is occasionally having an issue when a passenger is sitting in the rear driver side or middle seat. It seems like something related to the seat sensor causes the computer to freeze or get bogged down. When it occurs, the symptoms include: -The yellow front collision and lane change ADAS warnings pop up simultane…
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Our Fisker Ocean is occasionally having an issue when a passenger is sitting in the rear driver side or middle seat. It seems like something related to the seat sensor causes the computer to freeze or get bogged down. When it occurs, the symptoms include: -The yellow front collision and lane change ADAS warnings pop up simultaneously -Cruise control shuts off -Speedometer freezes -Blinkers don’t work (which also means hazard lights don’t) -Regen turns off but braking still works -Tomtom stops tracking the car accurately -Radio freezes -There may be other systems affected that we haven't noticed. A bit of experimentation with the passengers we were able to figure out workarounds. Lifting themselves off the seat all the issues would resolve pretty much immediately. Leaning the seat back down and then putting it back up almost always took care of the issue and it wouldn’t come back for a while or at all.
The contact owns a 2023 Fisker Ocean. The contact received notifications of NHTSA Campaign Numbers: 24V499000 (ELECTRICAL SYSTEM), 24V466000 (STRUCTURE), 24V623000 (SERVICE BRAKES, ELECTRIC) and 24V865000 (SERVICE BRAKES, HYDRAULIC; AUTOHOLD BRAKE SYSTEM/BRAKE HOLD). The contact stated that upon starting the vehicle, the rearvie…
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The contact owns a 2023 Fisker Ocean. The contact received notifications of NHTSA Campaign Numbers: 24V499000 (ELECTRICAL SYSTEM), 24V466000 (STRUCTURE), 24V623000 (SERVICE BRAKES, ELECTRIC) and 24V865000 (SERVICE BRAKES, HYDRAULIC; AUTOHOLD BRAKE SYSTEM/BRAKE HOLD). The contact stated that upon starting the vehicle, the rearview camera failed to activate while the vehicle was in reverse(R), compromising the back-over prevention system. In addition, all the cameras failed to operate as intended. The ADAS (Advanced Driver-Assistance Systems) light illuminated, and several unknown warning lights illuminated. The contact stated that an Over-the-Air (OTA) software update was performed on the rearview camera; however, the failure became progressively worse. The contact stated that the OTA updates drained the battery, causing alarms to independently activate. The battery was replaced. The contact stated that on a separate occasion, the electrical system failed, which caused the vehicle to be completely non-responsive. A mobile mechanic arrived at the residence and repaired the electrical system and the battery. However, the failure persisted, and the battery was replaced a second time. The contact stated that on a separate occasion, the front driver’s side door failed to open as intended. The contact was unable to open the door from the inside. The contact rolled down the window and unlocked the door from the outside. The vehicle was not diagnosed or repaired due to the cost and the parts not being available. The contact stated that the failure persisted. The contact stated that while driving uphill, the vehicle rolled backwards while in drive(D). The vehicle was not diagnosed or repaired after the most recent failure. The contact stated that while driving at an undisclosed speed, on a rough road or over a pothole, the vehicle failed to stop as intended while depressing the brake pedal. The contact stated that the interior lights failed to function as intended when the switch was turned on. In addition, while starting
The Break System is malfunctioning. ADAS System Malfunctioning. Internet problem. The driver's side left HVAC is making a cracking sound. I received a Recall message from the manufacturer and NHTSA, but the person from the dealership service is not going to fix the problem, and he says the message is not Valid. Please help me g…
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The Break System is malfunctioning. ADAS System Malfunctioning. Internet problem. The driver's side left HVAC is making a cracking sound. I received a Recall message from the manufacturer and NHTSA, but the person from the dealership service is not going to fix the problem, and he says the message is not Valid. Please help me go through this. And he is not going to honor the warranty. FYI, I also uploaded a picture and Text copy of the message from the manufacturer and NHTSA. Dear Ocean Owners: Enrollment for repair as well as reimbursement for published. NHTSA recalls [XXX] the model year 2023 Fisker Ocean are now open until August 31st, 2025. Suppose your vehicle is in need of recal related work performed. Please email [XXX] and include your vehicle Identification number, full name, address, and phone number. You will be contacted and scheduled for required repairs. If you have previously had recall-related work on your Ocean performed by a third-party repair provider, and seek reimbursement. Please email [XXX] and include your vehicle identification number, full name, address, and phone number. Please include receipts clearly demonstrating the work performed and the repair center that performed them. You will be contacted for reimbursement processing as soon as possible. Thank you INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Issues since we got the car
Official recalls
624V865000 · 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
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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