NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes complaints
302 reportsClear category filterMileage unknown · Feb 15, 2025
Forward Collision AvoidancePower TrainService Brakes
I am $851 out of pocket for repairs to address NHTSA mandated recalls. Software updates have not fully addressed all issues, notably excessive and distracting repeating audible and visual driver alerts related to ADAS failures, especially when raining, dark, or driving into direct sunlight. Vehicle was subject to multiple reca…
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I am $851 out of pocket for repairs to address NHTSA mandated recalls. Software updates have not fully addressed all issues, notably excessive and distracting repeating audible and visual driver alerts related to ADAS failures, especially when raining, dark, or driving into direct sunlight. Vehicle was subject to multiple recalls (software: 24V865000, 24V623000, 24V405000, 24V404000; hardware: 24V499000) manufacturer is bankrupt, zero follow-through from trustee / administrators to enable me to get these recalls addressed. There is an "OTA" team who are responsible for delivering software updates over the air. They are opaque, uncontactable, and appear to operate beholden to no-one. They have failed to establish a method for providing the NHTSA mandated software updates. The Fisker Owner's Association has attempted to fill the administrative delinquency but they are also not getting support. My complaint is based on the requirement that the manufacturer ensures I am not out of pocket for the cost of the remediation work to address the recalls and they have failed to provide a way for me to do this. As a result I have paid out of pocket to have them addressed. Attached is the invoice from a local garage for software updates ($495 labor) and water pump replacement ($325 labor + $31 parts).
NHTSA ODI #11642916
Mileage unknown · Feb 15, 2025
Lane DepartureService BrakesUnknown Or Other
I am writing to express my deep concerns regarding the ongoing issues that are being seen with the NHTSA recall campaign numbers 24V865000 and 24V623000. I was forced to pay to have my software updated to alleviate the concerns as the recall was not being performed properly. This situation is unacceptable, and I urge you to t…
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I am writing to express my deep concerns regarding the ongoing issues that are being seen with the NHTSA recall campaign numbers 24V865000 and 24V623000. I was forced to pay to have my software updated to alleviate the concerns as the recall was not being performed properly. This situation is unacceptable, and I urge you to take immediate action to address these critical issues. I look forward to a prompt response.
NHTSA ODI #11642886
Mileage unknown · Feb 15, 2025
Forward Collision AvoidanceService BrakesUnknown Or Other
Hi, I don't have a functioning car. It is bricked due to an update from 2.0 to 2.1 (en route to 2.2). I've experienced all the normal stuff like my Brakes wouldn't work as expected and the ADAS Warning Beeps were going nuts... But currently, there was a forced, OTA Update that I did not consent to and now the car does not m…
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Hi, I don't have a functioning car. It is bricked due to an update from 2.0 to 2.1 (en route to 2.2). I've experienced all the normal stuff like my Brakes wouldn't work as expected and the ADAS Warning Beeps were going nuts... But currently, there was a forced, OTA Update that I did not consent to and now the car does not move (or turn on). I'm concerned about the ongoing issues that are being seen with the NHTSA recall campaign numbers 24V865000 and 24V623000. The experience I had with my Fisker durning a 2.1 Over-the-Air (OTA) update attempt left my vehicle undrivable. This is leaving me in an inconvenient and frustrating situation. As a result, I had to incur additional expenses to have the necessary safety updates completed to restore my vehicle's functionality. This is far from the experience that I expected when signing up for a free mandated safety recall. Moreover, I've noticed a concerning trend regarding the frequency of issues reported by fellow owners after OTA updates. It appears that a significant percentage of vehicles—approximately 2% to 5%—experience similar problems, rendering them undrivable during the 48-hour update window. This situation not only disrupts our daily lives but also raises serious concerns about the reliability of the software updates. I am particularly troubled by the statistics indicating that only around 10% of the fleet has been updated successfully after several weeks of attempts. With such a limited number of service personnel available nationwide, it is alarming that many owners like myself are left without adequate support during these challenging times. I urge you to address these issues promptly, putting more vehicles in danger of becoming undrivable because of the safety recall process being flawed may not be helpful in this current process. I would appreciate any assistance you can offer in resolving my current situation and compensating for the expenses incurred due to this inconvenience. Thank you :)
NHTSA ODI #11642864
Mileage unknown · Feb 14, 2025
Forward Collision AvoidanceService BrakesUnknown Or Other
Unknown. Have you ever been afraid to drive a new very expensive vehicle? Well I can say with certainty that I have. This is why I could not wait any longer for the recalls to be “taken care of “ through Fisker. I had to pay a past Fisker technician to come to my house to do the recalls. This included almost $300 just for trave…
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Unknown. Have you ever been afraid to drive a new very expensive vehicle? Well I can say with certainty that I have. This is why I could not wait any longer for the recalls to be “taken care of “ through Fisker. I had to pay a past Fisker technician to come to my house to do the recalls. This included almost $300 just for travel fees. Water pump recall 24V499 cost $246.88. Powertrain modules recall 24V404 and Cluster Telltales recall 24V405. Also recall numbers 24V623 and 24V865 for the “new” software recalls. Total cost $199.95 for software update to OS 2.2. I now consider my Fisker Ocean to be the vehicle that it should have been when it was delivered to me. Although now I am having to worry about water getting into some electrical components in the front right wheel well causing electrical components to fail while you are driving the vehicle. I try not to drive it in the rain and only clean it with a waterless cleaner. Lastly, I had my battery replaced (for a cost of $358.95) as the one that was used my Fisker was a below average non trustworthy one.
NHTSA ODI #11642801
Mileage unknown · Feb 14, 2025
EngineForward Collision AvoidanceService Brakes
Fisker attempted to install a software update (Software OS 2.2) to my vehicle over the air which was intended to address recall number 24V623000. This attempted software update caused the vehicle's 12 Volt battery to drain, resulting in the car activating its low battery audible alarm and damaging the battery requiring me to pay…
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Fisker attempted to install a software update (Software OS 2.2) to my vehicle over the air which was intended to address recall number 24V623000. This attempted software update caused the vehicle's 12 Volt battery to drain, resulting in the car activating its low battery audible alarm and damaging the battery requiring me to pay for a new battery and its installation. The software was not successfully installed. Information from others owners indicates that the software update has damaged other cars and that very few of the Fisker Ocean fleet have received the full software update. Also, several of the car's Advanced Driver Assistance System functions remain inoperative, specifically the collision avoidance systems and pedestrian warning systems, raising serious safety issues for the car. The recall 24V623000 remains unaddressed for my vehicle. Recall 24V466000 requires Fisker to test door handles and replace them if faulty. This recall service has not been performed on my car. In December of 2024, the door handle on passenger door on the driver's side of the car failed. When unlocked, the door would not open from either the outside or the inside of the car creating a safety hazard if emergency egress from the vehicle was required. I have received no communication from Fisker on how to satisfy this recall requirement. Fisker has not provided resources or service locations at which this recall can be completed. Recall 24V466000 remains unaddressed for my vehicle. Recall number 24V499000 requires Fisker to replace water pumps that can fail and cause the car to depower and enter "limp mode". Fisker has not contacted me on how to satisfy this recall requirement. Fisker has not provided resources or service locations at which this recall can be completed. Recall 24V499000 remains unaddressed for my vehicle.
NHTSA ODI #11642780
Mileage unknown · Feb 14, 2025
Forward Collision AvoidanceService BrakesUnknown Or Other
Brakes are a safety issue which should be addressed in 2.2 OTA. Constant ADAS warnings can be a distracting safety issue for partially updated cars. The lack of the legally required pedestrian alert noises are also a safety concern for those around the vehicle. There may be others, of course, but remember we would like the NHTS…
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Brakes are a safety issue which should be addressed in 2.2 OTA. Constant ADAS warnings can be a distracting safety issue for partially updated cars. The lack of the legally required pedestrian alert noises are also a safety concern for those around the vehicle. There may be others, of course, but remember we would like the NHTSA to look into the SAFETY RECALL PROCESS. Be sure you have a safety reason to back up your selection.
NHTSA ODI #11642683
Mileage unknown · Feb 14, 2025
Lane DepartureService BrakesUnknown Or Other
RECALLS 24V865000 24V623000 24V499000 24V466000 i NEED TO PAY FOR RECALL WATERPUMP REPLACMENT , SOFTWARE UPDATE 2.2 AND DOOR HANDLE CHECK UP
NHTSA ODI #11642671
Mileage unknown · Feb 14, 2025
Back Over PreventionService BrakesUnknown Or Other
Based on NHTSA recall campaign numbers 24V865000, 24V405000 and 24V623000, I was supposed to receive over the air updates that was to fix braking issues with my vehicle, as well as other issues with the driver's assistance features. I have not received these updates yet. I do have regular issues with the regenerative breaking cu…
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Based on NHTSA recall campaign numbers 24V865000, 24V405000 and 24V623000, I was supposed to receive over the air updates that was to fix braking issues with my vehicle, as well as other issues with the driver's assistance features. I have not received these updates yet. I do have regular issues with the regenerative breaking cutting out, and would like to receive these OTA updates as soon as possible. According to the Fisker Owners Association: Every week of OTA updates has had vehicles whose owners have reported them as undrivable afterward (~2%-5% usually). Windows are 48 hrs long, car is unusable for the entire window. Partial updates are expected, and another 48 hrs may be required to complete. Complete updates (correct sounds and all), per owner surveys, have been under 30%. One set of numbers shared with FOA, and then shared with owners, was that only ~10% of the fleet (~300) was updated after 5 weeks of attempts and over 800 VINs submitted for attempt. There are only ~20 US service people available for the entire country, and only ~5 travel nationwide to fix our vehicles when a car is undrivable. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11642657
Mileage unknown · Feb 13, 2025
EngineExterior LightingService Brakes
I am writing to express my deep concerns regarding the ongoing issues that are being seen with the NHTSA recall campaign numbers 24V865000 and 24V623000.I hope this message finds you well. I am writing to formally express my concerns regarding the OTA (Over-the-Air) update process for my vehicle. The current OTA process, lasting…
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I am writing to express my deep concerns regarding the ongoing issues that are being seen with the NHTSA recall campaign numbers 24V865000 and 24V623000.I hope this message finds you well. I am writing to formally express my concerns regarding the OTA (Over-the-Air) update process for my vehicle. The current OTA process, lasting 48 hours, is simply not feasible for those of us who rely on our vehicles for daily activities. The inability to use my vehicle during this window forced me to pay out of pocket for alternative transportation, which is both inconvenient and financially burdensome. Additionally, it has come to my attention that there have been numerous reports from fellow owners indicating that a significant percentage of vehicles (approximately 2%-5%) have become undrivable following these updates. This situation is alarming and raises concerns about the reliability of the updates being delivered. Moreover, the lengthy windows of 48 hours for updates, coupled with the expectation of partial updates requiring additional time, have left many of us in a state of uncertainty regarding the functionality of our vehicles and forced to pay out of pocket for a mandatory free recall. According to owner surveys, it appears that complete updates—which include all necessary corrections—have been accomplished in less than 30% of cases. Furthermore, I was surprised to learn that only about 10% of the fleet (approximately 300 vehicles) had been updated after several weeks of attempts, despite over 800 VINs submitted for this process. This statistic raises questions about the efficiency and effectiveness of the OTA process. Lastly, I am deeply concerned about the limited number of service personnel available in the U.S., with only around 20 individuals servicing the entire country and merely 5 traveling nationwide to assist customers with undriveable vehicles. This scarcity is unacceptable and leads to extended wait times for necessary repairs and updates. I urge you to
NHTSA ODI #11642652
Mileage unknown · Feb 13, 2025
Electrical SystemFuel/propulsion SystemService Brakes
I have three separate issues. 1. When using the Ocean to tow with the OEM, installed from the factory, tow package, using the turn signals while braking will result in no turn signal indication when using a flat 4 adapter. 2. Range of the vehicle has dramatically decreased to the point where range is unpredictable in the Ocean O…
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I have three separate issues. 1. When using the Ocean to tow with the OEM, installed from the factory, tow package, using the turn signals while braking will result in no turn signal indication when using a flat 4 adapter. 2. Range of the vehicle has dramatically decreased to the point where range is unpredictable in the Ocean OS 2.2 update. When we used to get over 300 mi of real range on 340 mi estimated, we can no longer get 200 mi on a charge. This can be startling and result in unforeseen out of power conditions while on the road. 3. I have been unable to obtain the recalled cabin water pump which can cause the car to go into limp mode. Shops in the area are quoting more than the advertised $170 that will be paid out for replacement.
NHTSA ODI #11642650
Official recalls
6Nov 15, 2024
Fisker Group Inc (Fisker) is recalling certain 2023-2024 Ocean vehicles. The transmission may not shift into the selected gear, allowing the vehicle to roll away while in Drive or Reverse.
Consequence & remedy
Consequence: A vehicle roll away increases the risk of a crash or injury.
Remedy: Fisker released an over-the-air (OTA) software update on March 11, 2024, free of charge. Owners may contact Fisker customer service at 1-844-347-5371.
Aug 20, 2024
Fisker Group Inc (Fisker) is recalling certain 2023-2024 Ocean vehicles. The brake module software may cause an unexpected reduction in regenerative braking, decreasing the braking performance.
Consequence & remedy
Consequence: Decreased braking performance can extend the distance required to stop, increasing the risk of a crash.
Remedy: Fisker will release an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed September 26, 2024. Owners may contact Fisker customer service at 1-844-347-5371. Fisker's number for this recall is TSB10062408.
Jul 2, 2024
Fisker Group Inc (Fisker) is recalling all 2023-2024 Ocean vehicles. A communication failure with the cabin electric water pump can cause the high voltage battery management system (BMS) to enter limp mode, causing a loss of drive power.
Consequence & remedy
Consequence: A sudden loss of drive power increases the risk of a crash.
Remedy: Fisker will replace the pumps, free of charge. Owner notification letters were mailed August 19, 2024. Owners may contact Fisker customer service at 1-844-347-5371. Fisker's number for this recall is TSB30032401.
Jun 20, 2024
Fisker Group Inc (Fisker) is recalling all 2023-2024 Ocean vehicles. The exterior door handles can stick and fail to open.
Consequence & remedy
Consequence: A door that fails to open can prevent occupants from exiting in an emergency, increasing the risk of injury.
Remedy: Fisker will inspect and replace the door handles as necessary, free of charge. Owner notification letters were mailed August 19, 2024. Owners may contact Fisker customer service at 1-844-347-5371. Fisker's number for this recall is TSB55062401.
Jun 5, 2024
Fisker Group Inc (Fisker) is recalling all 2023 Ocean vehicles. The Motor Control Unit (MCU) and Vehicle Control Unit (VCU) software may cause the vehicle to enter a safe state protection mode unexpectedly, causing a loss of drive power.
Consequence & remedy
Consequence: A loss of drive power increases the risk of a crash.
Remedy: Fisker will release an over-the-air (OTA) update to the MCU and VCU software, free of charge. Owner notification letters were mailed June 13, 2024. Owners may contact Fisker customer service at 1-844-347-5371. Fisker's number for this recall is TSB10032403.
Jun 5, 2024
Fisker Group Inc (Fisker) is recalling all 2023 Ocean vehicles. The instrument panel displays the incorrect font size of the Brake, Park, and Antilock Brake System (ABS) warning lights, and displays certain warning lights in amber instead of red. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 135, "Light Vehicle Brake Systems" and 101, "Controls and Displays." Additionally, multiple warning lights fail to illuminate during the ignition cycle bulb check, failing to comply with the requirements of FMVSS 138 and 208.
Consequence & remedy
Consequence: Warning lights that do not display correctly can fail to alert the driver to critical safety information, increasing the risk of a crash or injury.
Remedy: Fisker will release an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed June 11, 2024. Owners may contact Fisker customer service at 1-844-347-5371. Fisker's number for this recall is TSB70062404.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
4PE24013 · Inadvertent Automatic Emergency Braking
Opened May 8, 2024 · Closed Jan 16, 2025
Status: closed (inferred from source dates) · Forward Collision Avoidance: Automatic Emergency Braking
On May 8, 2024, the Office of Defects Investigation (ODI) opened PE24013 to investigate reports of inadvertent activation of the automatic emergency braking (AEB) system in model year (MY) 2023 Fisker Ocean vehicles manufactured by Fisker Group Inc. (Fisker). The complaints allege the activation of AEB without an apparent roadway obstruction in the vehicle’s forward path, resulting in sudden vehicle deceleration. This sudden deceleration occurs without adequate warning or input from the driver. The braking applications range from momentary, partial application resulting in rapid loss of speed to full application, which brings the vehicle to a complete stop in the travel lane. ODI sent Fisker an Information Request (IR) letter on May 20, 2024. On June 17 and 19, 2024, Fisker and its affiliates filed a voluntary petition for relief under chapter 11 of the Bankruptcy Code. Fisker provided an incomplete response to the IR on July 1, 2024. Limited information pertaining to system validation and failure data was provided. Fisker subsequently requested more time to provide additional responsive files due to limited available resources. Fisker sent additional responsive files on September 9, 2024, September 17, 2024, and December 16, 2024, but Fisker’s response did not contain sufficient information for ODI to fully evaluate the alleged safety defect. Further, on December 27, 2024, the Fisker employees with whom ODI had been corresponding informed ODI that all Fisker employees were being “dismissed” as of that date. ODI therefore does not anticipate receiving any further responsive submissions such that it can fully evaluate the reports that led to this investigation. ODI performed phone interviews and sent a survey to consumers to obtain more information and validate the allegations. Additionally, ODI reviewed allegations of the alleged safety defect that were submitted to various online forums. Most of these reports were similar in nature to the reports received by ODI. Some of the reports in online forums appear to be duplicative reports that were also submitted to ODI. Based on the responses received and analysis of similar online reporting, there was no clear trend in the following factors pertaining to the allegations: reoccurrence of events (i.e., single or multiple incidents), speed immediately prior to the event, whether the event concluded in a reduction of speed or a full stop, roadway conditions, and warning immediately prior to the event. To date, between the reports provided by Fisker and complaints made directly to the agency, ODI is aware of over 20 reports alleging inadvertent AEB activation. Before the employees were dismissed, Fisker’s testing done in response to the inadvertent AEB allegations reportedly did not result in any inadvertent AEB activations. The “Manufacturer” and “Total” counts in the above table have been left blank because of a pending request for confidential treatment by Fisker that could not be timely addressed given the company’s status. This information factored into ODI’s investigation and analysis. The available information does not warrant further action at this time. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. Additionally, the Agency notes that the Vehicle Safety Act states: “A manufacturer’s filing of a petition in bankruptcy under chapter 7 or chapter 11 of title 11 does not negate the manufacturer’s duty to comply with section 30112 or sections 30115 through 30120 of this title,” which include the recall provisions of the Act. The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
PE24010 · Failure To Open Door
Opened Apr 1, 2024 · Closed Aug 26, 2024
Status: closed (inferred from source dates) · Latches/locks/linkages:doors:latch
On April 1, 2024, the Office of Defects Investigation (ODI) opened PE24010 to investigate instances of failure to open the door in model year (MY) 2023 Fisker Ocean vehicles manufactured by Fisker Group Inc. Some complaints allege the inability to open the door from either the interior or exterior door handle, resulting in the need to use another door to egress. The investigation revealed that all four exterior door handles are subject to sticking in the extended/unlocked position, which may result in the inability to unlatch the door from either the interior or exterior door handle. The root cause is a dimensional interference between the exterior door handle chassis pocket and door handle, causing friction during handle deployment and retraction. The inability to open and egress from the occupant’s adjacent door presents an unreasonable risk to motor vehicle safety. On June 27, 2024, Fisker filed recall 24V-466 for certain MY 2023 Fisker Ocean vehicles. The recall remedy includes an inspection procedure for all four doors and provides replacement of the outer door handle if a “Not Okay” result is found. In view of the recall action being taken by Fisker, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
PE24005 · Unintended Vehicle Movement
Opened Feb 14, 2024 · Closed Dec 6, 2024
Status: closed (inferred from source dates) · Power Train:automatic Transmission
On February 14, 2024, the Office of Defects Investigation (ODI) opened PE24005 to investigate reports of unintended vehicle movement in model year (MY) 2023 Fisker Ocean vehicles manufactured by Fisker Group Inc. The complaints allege the inability to shift into the park gear and/or vehicle rollaway. The investigation found that the subject vehicles contain a logic that prevents the engagement of the park gear when the park gear request is made while the vehicle is still moving at low speeds. In the event the driver requests the park gear prior to the vehicle achieving a complete standstill status, the vehicle rejects the park gear request, displays a visual warning, and shifts into the neutral gear. Therefore, if the driver does not properly restrain the vehicle prior to exiting (i.e., allow the vehicle to come to a complete stop, then provide a second park gear request and/or engage the parking brake), the vehicle is at risk of freely rolling away in neutral. ODI found that existing strategies to deter drivers from exiting the vehicle after failing to ensure the transmission successfully engages the park gear have not stopped some from doing so. The absence of additional mechanisms to mitigate the effects of driver behavior in failing to ensure the park gear was engaged prior to exiting the vehicle constitutes a defect presenting a risk to motor vehicle safety. ODI is aware of one reported injury due to this safety defect. On November 15, 2024, Fisker filed recall 24V-865 for all MY 2023-2024 Fisker Ocean vehicles. The recall remedy is the release of software upgrade OS 2.0. This software update provides additional robustness to prevent unintended vehicle movement via two major changes. First, in the event the driver seatbelt is unlatched when the vehicle is traveling at low speeds, logic was added to initiate an automatic, controlled deceleration to bring the vehicle to a standstill. Once standstill status is achieved, the vehicle will automatically engage the park gear and the electronic parking brake. Second, OS 2.0 introduced an “Auto Vehicle Hold” feature, which holds the vehicle in standstill by maintaining friction brake pressure when the driver removes their foot from the brake pedal. This feature prevents the vehicle from rolling under gravity, which therefore helps engage both the park gear and electronic parking brake. In view of the recall action being taken by Fisker, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
PE24001 · Loss Of Braking Performance
Opened Jan 11, 2024 · Closed Aug 26, 2024
Status: closed (inferred from source dates) · Service Brakes; Service Brakes, Electric:software/programming
On January 11, 2024, the Office of Defects Investigation (ODI) opened PE24001 to investigate instances of loss of braking performance in model year (MY) 2023 Fisker Ocean vehicles manufactured by Fisker Group Inc. The complaints allege an intermittent partial loss of regenerative braking over low traction surfaces, without alerting the driver. ODI is aware of six minor crashes and one injury due to this failure. The subject vehicles utilize a brake blending feature to achieve deceleration. Upon application of the brake pedal, both the service brake system (friction braking) and regenerative braking system (electric motor negative torque) are applied. Regenerative braking on low friction road surfaces may result in wheel slippage due to the high motor negative torque. The vehicle responds by reducing and/or eliminating regenerative braking torque to reduce wheel slip on drive wheels to maintain vehicle stability and steerability. This reduction in regenerative braking may cause a sensation of loss of braking force (or even vehicle accelerating) that was reported by consumers. Additionally, the driver may experience an unusual/altered brake pedal feel during loss of regenerative braking events, requiring them to press the brake pedal harder to maintain the expected braking rate. Upon exiting the low friction road surface, the regenerative braking force is restored. The initial calibration of the regenerative braking system contained aggressive interventions with a slower recovery in the event of loss of regenerative braking. In November 2023, Fisker launched an Over-the-Air update (OS1.10 SW). This update included a recalibration to reduce regenerative braking torque less aggressively and allow torque recovery to occur more quickly. Based on consumer reports and the data that Fisker provided in response to ODI’s inquiry, OS 1.10 SW reduced, but did not eliminate, the sensation of loss of braking force and resulted in stopping distance performance improvements. Friction braking is always available when the driver presses the brake pedal, and its performance is unaffected by regenerative brake loss. Fisker’s braking system is designed to reach full deceleration even with an unavailable regenerative braking system. The partial loss of braking force during moderate braking events can be overcome by applying additional pressure to the brake pedal to slow or stop the vehicle. On August 20, 2024, Fisker filed recall 24V-623 for all 2023 MY Fisker Ocean vehicles produced for the U.S.A. The recall remedy includes OS 2.2 over-the-air update, which is expected to modify the brake module to enhance the vehicle brake system’s ability to adapt to various driving scenarios. With successful implementation of OS 2.2, a road disturbance will not trigger a reduction in regenerative braking torque. In view of the recall action being taken by Fisker, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
Additional source detail variants (2)
Service Brakes, Electric:software/programming
On January 11, 2024, the Office of Defects Investigation (ODI) opened PE24001 to investigate instances of loss of braking performance in model year (MY) 2023 Fisker Ocean vehicles manufactured by Fisker Group Inc. The complaints allege an intermittent partial loss of regenerative braking over low traction surfaces, without alerting the driver. ODI is aware of six minor crashes and one injury due to this failure. The subject vehicles utilize a brake blending feature to achieve deceleration. Upon application of the brake pedal, both the service brake system (friction braking) and regenerative braking system (electric motor negative torque) are applied. Regenerative braking on low friction road surfaces may result in wheel slippage due to the high motor negative torque. The vehicle responds by reducing and/or eliminating regenerative braking torque to reduce wheel slip on drive wheels to maintain vehicle stability and steerability. This reduction in regenerative braking may cause a sensation of loss of braking force (or even vehicle accelerating) that was reported by consumers. Additionally, the driver may experience an unusual/altered brake pedal feel during loss of regenerative braking events, requiring them to press the brake pedal harder to maintain the expected braking rate. Upon exiting the low friction road surface, the regenerative braking force is restored. The initial calibration of the regenerative braking system contained aggressive interventions with a slower recovery in the event of loss of regenerative braking. In November 2023, Fisker launched an Over-the-Air update (OS1.10 SW). This update included a recalibration to reduce regenerative braking torque less aggressively and allow torque recovery to occur more quickly. Based on consumer reports and the data that Fisker provided in response to ODI’s inquiry, OS 1.10 SW reduced, but did not eliminate, the sensation of loss of braking force and resulted in stopping distance performance improvements. Friction braking is always available when the driver presses the brake pedal, and its performance is unaffected by regenerative brake loss. Fisker’s braking system is designed to reach full deceleration even with an unavailable regenerative braking system. The partial loss of braking force during moderate braking events can be overcome by applying additional pressure to the brake pedal to slow or stop the vehicle. On August 20, 2024, Fisker filed recall 24V-623 for all 2023 MY Fisker Ocean vehicles produced for the U.S.A. The recall remedy includes OS 2.2 over-the-air update, which is expected to modify the brake module to enhance the vehicle brake system’s ability to adapt to various driving scenarios. With successful implementation of OS 2.2, a road disturbance will not trigger a reduction in regenerative braking torque. In view of the recall action being taken by Fisker, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
Service Brakes
On January 11, 2024, the Office of Defects Investigation (ODI) opened PE24001 to investigate instances of loss of braking performance in model year (MY) 2023 Fisker Ocean vehicles manufactured by Fisker Group Inc. The complaints allege an intermittent partial loss of regenerative braking over low traction surfaces, without alerting the driver. ODI is aware of six minor crashes and one injury due to this failure. The subject vehicles utilize a brake blending feature to achieve deceleration. Upon application of the brake pedal, both the service brake system (friction braking) and regenerative braking system (electric motor negative torque) are applied. Regenerative braking on low friction road surfaces may result in wheel slippage due to the high motor negative torque. The vehicle responds by reducing and/or eliminating regenerative braking torque to reduce wheel slip on drive wheels to maintain vehicle stability and steerability. This reduction in regenerative braking may cause a sensation of loss of braking force (or even vehicle accelerating) that was reported by consumers. Additionally, the driver may experience an unusual/altered brake pedal feel during loss of regenerative braking events, requiring them to press the brake pedal harder to maintain the expected braking rate. Upon exiting the low friction road surface, the regenerative braking force is restored. The initial calibration of the regenerative braking system contained aggressive interventions with a slower recovery in the event of loss of regenerative braking. In November 2023, Fisker launched an Over-the-Air update (OS1.10 SW). This update included a recalibration to reduce regenerative braking torque less aggressively and allow torque recovery to occur more quickly. Based on consumer reports and the data that Fisker provided in response to ODI’s inquiry, OS 1.10 SW reduced, but did not eliminate, the sensation of loss of braking force and resulted in stopping distance performance improvements. Friction braking is always available when the driver presses the brake pedal, and its performance is unaffected by regenerative brake loss. Fisker’s braking system is designed to reach full deceleration even with an unavailable regenerative braking system. The partial loss of braking force during moderate braking events can be overcome by applying additional pressure to the brake pedal to slow or stop the vehicle. On August 20, 2024, Fisker filed recall 24V-623 for all 2023 MY Fisker Ocean vehicles produced for the U.S.A. The recall remedy includes OS 2.2 over-the-air update, which is expected to modify the brake module to enhance the vehicle brake system’s ability to adapt to various driving scenarios. With successful implementation of OS 2.2, a road disturbance will not trigger a reduction in regenerative braking torque. In view of the recall action being taken by Fisker, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
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