2023 Rivian R1S

The specific failed component is UNKNOWN. My 2023 Rivian R1S has experienced recurring intermittent Limited Performance/loss-of-propulsion-type events since within months of delivery. The events involve unexpected reduction of available propulsion, reduced maximum speed, warnings, restarts, system/display restarts, and at times inability to move or change gears. Rivian documented Limited Performance while driving in January 2024. In March 2024, Rivian documented loss of propulsion and an approximately 10 mph maximum speed; a reset and sleep cycle did not correct the condition. Rivian later stated it could not reproduce the concern. In March 2026, Rivian documented Limited Performance while driving, the vehicle coming to a stop, and multiple restarts before it would move. On September 4, 2026, the vehicle again entered Limited Performance and would not exceed approximately 20 mph. After a restart, it operated normally. Rivian received the vehicle for service on September 7. On September 9, Rivian stated that initial testing did not duplicate the Limited Performance telltale, that it had no confirmed repair, and that it proposed an extended approximately 100-mile test drive to try to reproduce the issue. I retained photos and videos of additional events involving reduced speed, warnings, restarts, and inability to move. The intermittent loss or reduction of propulsion while driving can affect my ability to maintain safe speed and creates a potential crash risk. There was no crash, injury, or fire in the incidents described.

The contact owns a 2023 Rivian R1S. The contact stated that the vehicle was taken for service, and the service tech stated that all three rear seat belts had a wire that had been severed from the buckle. Additionally, the vehicle failed to detect an occupant seated in the rear seats. The dealer stated that the seat belt buckles needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, and a complaint was filed. The failure mileage was 29,000.

I own a 2023 Rivian R1S, early production vehicle #531, with approximately 93,000 miles. While driving, I noticed the vehicle's suspension was not functioning normally. After parking, the front passenger side of the vehicle dropped significantly lower than the other side, leaving the vehicle visibly uneven. I also received suspension warnings indicating that the suspension system was too hot and needed to cool. I brought the vehicle to a Rivian Service Center. Rivian diagnosed a failed/leaking damper and a failed air compressor. I was informed that only one damper had failed, but that all four dampers must be replaced because Rivian changed the manufacturer of the dampers and the replacement components are not compatible with the original dampers installed on my vehicle. The estimated repair cost is approximately $8,000. I am concerned that this may represent a safety-related failure of the early-generation R1S suspension system rather than normal wear. The suspension failure resulted in a substantial and visible change in the vehicle's ride height and occurred after I had experienced suspension behavior changing while driving. I have also found reports from other Gen 1 Rivian owners describing leaking hydraulic dampers, damper failures, suspension sag or collapse, multiple damper replacements, and air-compressor failures. Some owners report Rivian replacing their original dampers with subsequently revised components. I am particularly concerned that Rivian has informed me that the original dampers on my vehicle can no longer be replaced individually because the damper manufacturer/component has changed. Although only one damper on my vehicle failed, Rivian states that all four must now be replaced. I am submitting this complaint because a suspension failure that causes a significant unexpected change in vehicle ride height may affect vehicle handling and safety, and I believe NHTSA should determine whether similar failures are occurring in other early-product

On XXX, at approximately 12:19 PM, I was in the drive-through lane at a Chick-fil-A in [XXX], with my child as a passenger. I was using one-pedal driving mode and had come to a complete stop with my foot off the accelerator. I turned briefly to hand my child an ice cream cup, and when I looked back at the road, the vehicle was accelerating at full power with no contact from either pedal. To avoid striking the vehicles stopped ahead of me in the drive-through line, I swerved left into the Chick-fil-A building, causing a collision with the building. This put myself, my child, and nearby pedestrians and drivers at serious risk of injury. Cedar Park Police Department responded to the scene and a report was filed. I have video footage of the incident. The vehicle is available for inspection upon request. I believe the accelerator pedal and/or its sensor malfunctioned, possibly related to a known issue some other Rivian owners have reported involving cabin temperature affecting the pedal sensor; this has not yet been confirmed by a dealer or manufacturer. I am requesting that the manufacturer pull the vehicle’s black box/EDR data and perform full diagnostics on the pedal and sensor. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The vehicle experiences recurring, uncommanded high-speed steering "lurches" where the Lane Keep Assist (LKA) system initiates aggressive, sudden steering inputs at highway speeds (65+ mph). These inputs force the vehicle out of its lane and require immediate, significant manual driver counter-steering to prevent collisions. These events occur without warning, despite no perceived environmental triggers. This issue involves the vehicle's automated steering and Lane Keep Assist software suite. This safety defect renders the vehicle inherently dangerous to operate at highway speeds for the driver, occupants and everyone on the freeway. This issue is not isolated to this vehicle; numerous owners have reported identical, terrifying high-speed steering shoves on public forums for over a year. There is credible evidence indicating that the manufacturer's executive leadership, including the CEO, has been aware of these fleet-wide issues for well over a year. Despite this knowledge, the manufacturer continues to characterize these life-safety events as "Operating as Designed" or "No Fault Found" (NFF). This issue has been reported to the manufacturer’s service center repeatedly over several months by myself and other owners. Despite the manufacturer claiming to be "diagnosing" or "duplicating" the steering failure, telemetry data from the vehicle (including odometer audits) confirms that the vehicle remains stationary at the service facility for extended periods with zero diagnostic miles driven during these "repair" attempts. Other service appointments show minimal miles driven. The manufacturer has replaced safety-critical steering hardware, including the steering column assembly, without resolving the persistent software-driven steering lurches. The manufacturer’s refusal to acknowledge the defect or conduct meaningful, speed-appropriate road validation, despite being notified of the systemic safety risk, suggests a failure to address an acute life-safety hazard.

While driving at city speeds, I heard a rubbing/grinding noise from the right rear of the vehicle and noticed that the suspension no longer felt normal. After stopping to inspect the vehicle, I found that the right rear wheel had shifted rearward within the wheel opening and was contacting the wheel liner. The condition appeared suddenly without prior warning messages or warning lights. I do not recall any curb strike, pothole impact, collision, off-road event, or other significant impact prior to the failure. The vehicle was towed to a manufacturer service center and inspected. The manufacturer determined the damage was impact-related and not covered under warranty. Recommended repairs include replacement of the right rear knuckle, upper longitudinal link, toe link, hub bearing, and halfshaft. The failure resulted in a significant change in rear suspension geometry and raised concerns about vehicle safety. The damaged components are currently in the possession of the manufacturer service center and may be available for inspection.

The vehicle's infotainment, driver gauge cluster and on display safety systems all fully lock up and reboot after about 30 minutes of driving. If you have highway ADAS engaged, warning sounds will occur but no display explaining the warnings. If you're using the vehicle's safety systems you suddenly do no have blindspot monitoring, or enabled ADAS. Additionally, navigation will not be available causing immediate confusion.