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.
Exterior Lighting complaints
48 reportsBoth interior and exterior lighting keep coming on. The car is continually and significantly draining the battery from something. either the inability for the communication box to connect or from lighting coming on. My headlights and tails lights were on April 2, 2025 - Headlamps and Tail Lamps April 5, 2025 - Dash lights a…
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Both interior and exterior lighting keep coming on. The car is continually and significantly draining the battery from something. either the inability for the communication box to connect or from lighting coming on. My headlights and tails lights were on April 2, 2025 - Headlamps and Tail Lamps April 5, 2025 - Dash lights and rear passenger lamps September 28 - October 13 A friend was keeping my vehicle while I traveled abroad to keep it charged because the battery keeps draining. He reported that the lights came on almost daily. January 5 through January 8, 2026, Neighbor reported rear passenger overhead lighting on daily around 7:30 am.
My Fisker Ocean ICC infotainment screen and the lower climate and sound control panel have stopped functioning. Initially it was restarting on its own once in a while. Once it was able to get booted up, all eletronics, vents and sound controls were still working. However, ICC has now been blacked out and stays in start loop e…
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My Fisker Ocean ICC infotainment screen and the lower climate and sound control panel have stopped functioning. Initially it was restarting on its own once in a while. Once it was able to get booted up, all eletronics, vents and sound controls were still working. However, ICC has now been blacked out and stays in start loop every 5 mins. I have fully lost the climate control and sound system. It has created a dangerous driving environment as the windshield cannot be defogged at bad weather. I lost heat and AC along with the sound system and other electronic controls from the ICC.
The Fisker Ocean was delivered with door handles that have major physical defects, including entrapment inside the vehicle in the case of 12V power loss and users unable to enter the vehicle. In my case, I have installed an emergency door hatch release myself in the trunk of the car to prevent entrapment. I have also ordered the…
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The Fisker Ocean was delivered with door handles that have major physical defects, including entrapment inside the vehicle in the case of 12V power loss and users unable to enter the vehicle. In my case, I have installed an emergency door hatch release myself in the trunk of the car to prevent entrapment. I have also ordered the new Gen2A door handles manufactured by Chevalier. These Gen2A door handles should have been provided free of charge to all Fisker Ocean owners if the company still existed. I believe we should be compensated for faulty and dangerous door handles. American Lease, the company now responsible for the fleet of Fisker Oceans, should pay for the handles and the repair cost. I have included the receipt of the door handles I had to purchase, but this does not include the labor cost to install them (at least $1,000). In addition, the Fisker Ocean was delivered with problematic rear reading lights that turn on randomly due to a faulty metal switch. This means the light can turn on when the car is parked and off, or even more dangerously, while driving (especially at night). I removed the switch. Finally, the Fisker Ocean was delivered with electrical wiring that was not properly waterproofed causing many, many errors for users. I have taken off the front and rear bumpers to properly waterproof these wirings, taking hours of my free time to protect connectors from water ingress. This is unacceptable for a car that was produced in 2023-2024.
As of Feb after a over the air update from OS 2.0 to a partial 2.2 software update, 2.2 ICC390047-APK-1.1.47, on my Fisker Ocean One I am having the following issues: 12v drain, most days when I go to start the car I am getting the 12v battery low, turning off climate control message incomplete home charging -The vehicle has st…
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As of Feb after a over the air update from OS 2.0 to a partial 2.2 software update, 2.2 ICC390047-APK-1.1.47, on my Fisker Ocean One I am having the following issues: 12v drain, most days when I go to start the car I am getting the 12v battery low, turning off climate control message incomplete home charging -The vehicle has stopped charging multiple times after only adding about 30% when there was about 30% left to get to requested 80% charge. Ambient lighting is on when set to off on UI, I have to go into UI to turn it on then turn it off for it to turn to be off. Ambient light is on when the car is off, I have found the ambient lighting on hours after i have gotten home & locked the car. There also appears to be a higher level of vampire drain where it is losing 1-3% overnight. This is on in addition to the ADAS system still not working, wasn't working with OS 2.0.
My car was scheduled the first week of the updates. The car would not update. Afterward, the batter drain was very noticeable. Now there is no internet service for the car... not from Fisker and while I can verify it connects to my home wifi and mobile phone hotspot, it will not allow data to the car. I took this to a deal…
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My car was scheduled the first week of the updates. The car would not update. Afterward, the batter drain was very noticeable. Now there is no internet service for the car... not from Fisker and while I can verify it connects to my home wifi and mobile phone hotspot, it will not allow data to the car. I took this to a dealer to have the water pump replaced, the car updated, the 12v batter replaced, the t-box reset and the door handle inserts replaced. They were unable to repair the drivers door handle (the LED lights actually generate smoke) and I cannot use the NFC to enter the car. Additionally, one day while charging the vehicle, all of the door handles retracted when I closed the door and the key was in the car. Thankfully the rear hatch was not locked because my DOG WAS INSIDE! This car is dangerous and no one is helping!
Description of Incident(s) On March 5, 2025, I discovered that my 2023 Fisker Ocean had undergone an unauthorized over-the-air (OTA) software update to version 2.2.2 without my knowledge or consent. I received no prior notification from Fisker or American Leasing, the current entity managing Fisker vehicles following the company…
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Description of Incident(s) On March 5, 2025, I discovered that my 2023 Fisker Ocean had undergone an unauthorized over-the-air (OTA) software update to version 2.2.2 without my knowledge or consent. I received no prior notification from Fisker or American Leasing, the current entity managing Fisker vehicles following the company’s bankruptcy in 2024. Additionally, I have no access to the vehicle’s cloud system or update logs to understand what changes were implemented, leaving me unable to assess the scope or purpose of the update. Following this update, I experienced two significant safety-related issues with my vehicle, detailed below. Driver’s Door Handle Overheating After the 2.2.2 update, the driver’s side door handle began exhibiting extreme overheating, reaching temperatures exceeding 130°F as measured with a non-contact infrared thermometer. This poses a serious burn hazard and makes the handle unsafe to touch for entry or exit. The issue appears to be electrical in nature, potentially related to a malfunction in the door handle actuator or power management system altered by the software update. The handle remains excessively hot even when the vehicle is powered off, suggesting a persistent fault. This defect compromises safe access to the vehicle and presents a risk of injury. Rearview Mirror Fan Constantly Running Since the update, the fan associated with the vehicle’s digital rearview mirror now runs continuously, regardless of whether the mirror is in use or the vehicle’s thermal conditions warrant cooling. This creates unnecessary noise, potential wear on the fan component, and a possible drain on the vehicle’s battery. While the digital mirror functionality remains operational, the constant fan operation suggests a software glitch affecting thermal regulation or sensor feedback loops, likely introduced by the 2.2.2 update. This issue, while not immediately hazardous, indicates broader concerns with the stability of the vehicle’s software systems post-
On several occasions, following update to the 2.2 S/W load to address Recall RCAK-24V405-1431, dated June 11, 2024, the vehicle braking system has been erratic with Emergency Braking System Warning lights / alarms repeatedly annunciating. I paid for the 2.2 S/W upgrade, at my cost, to address the recall requirements.
Too many warning issues lights coming on and off. The main/large touch-screen completely turns off and disables the driver to use HVAC and several safety features. Unwanted accelerations when going on bumps. Mileage accuracy issues.
My vehicle received an unexpected OTA software update over the night if 12-Feb-2025. That process completely drained and destroyed the 12v battery. This resulted in the software download and installation not completing as intended. Since that time I have related the 12v battery, and the vehicle can drive, but essential all of it…
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My vehicle received an unexpected OTA software update over the night if 12-Feb-2025. That process completely drained and destroyed the 12v battery. This resulted in the software download and installation not completing as intended. Since that time I have related the 12v battery, and the vehicle can drive, but essential all of its electrical components such as HVAC, cameras, and all software controls are non-functional and inaccessible. A service center has been unable to fix the problem and tell me it must be corrected with future OTA updates, but I have no means to identify, let alone contact those responsible for those updates.
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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