There are 4 stored owner reports matching the speed control & cruise leading-label group for the 2025 Rivian R1S in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)On February 1, 2026, at approximately 9:09 AM, while driving from a stop and continuing on main roads, the vehicle accelerated to extremely high speeds and would not properly slow down. When I removed my foot from the accelerator pedal, the vehicle did not decelerate as expected. Regenerative braking was nonexistent. Normally, releasing the accelerator provides noticeable deceleration, but in this incident the vehicle continued to propel forward instead of slowing. Braking was extremely difficult. The brake pedal felt abnormally stiff (“thick”) and required significant effort to depress. Even while actively braking, it felt as though the vehicle was still attempting to accelerate forward and did not slow normally. This occurred for a couple hundred yards before I was able to pull over due to safety concerns. At the same time, the vehicle was in All-Purpose drive mode, but the ride height was stuck at kneel height and would not adjust, which is abnormal. After pulling over, the vehicle would not shift into Park. I had to press the brake pedal with both feet while fully depressing it and lifting myself off the seat to keep the vehicle from moving. I then had to open the driver door in order to force the vehicle into Park. There were no warning lights or messages displayed on the dashboard. The vehicle was towed to the Rivian Service Center but has not yet been inspected because the service center is currently closed. This malfunction created a serious safety risk due to unintended acceleration, loss of normal deceleration, difficulty braking, abnormal suspension behavior, and inability to shift into Park.
On November 27th the accelerator on my Rivian became stuck causing the car to accelerate quickly and preventing me from immediately stopping the car. There was a message stating that the regenerative braking system was not available and the accelerator pedal was stuck in the down position. When I pressed on the brake there was a terrible grinding noise and smoke coming from the front tires. I quickly realized that bringing the Rivian to a full stop would likely cause the car to catch fire. Since the road was clear I had time to discuss a plan with my family and I told them to prepare to get out of the car quickly. I pressed hard on the brakes which caused them to grind and smoke. I put the car in park and we all exited the car quickly. Flames were visible from the front tire. The car is available for inspection. If there had been other vehicles on the road or any pedestrians this would have been a life threatening incident. Rivian is claiming that I must have been pressing on both the accelerator and the brake at the same time. We had 2 adults and 3 children in the car and the incident lasted long enough for us to discuss a plan to exit the car. There is no chance that my foot was on both the accelerator and the brake. Rivian has conducted an inspection but has denied that there is an issue. There has not yet been an independent inspection. The car has been in Rivian's service center since the day after the incident. The only warning sign appeared during the incident stating that regenerative braking was not available but this did not explain why the accelerator pedal was stuck.
While my wife was driving our 2025 Rivian R1S (approx. 13,500 miles), the vehicle was at a complete stop when it began to slowly roll forward on its own, followed by a sudden surge of acceleration, despite no input on the accelerator. This unexpected movement caused the vehicle to collide with a Tesla directly in front and involved another two vehicles. This incident posed a serious safety risk and could have injured pedestrians or other drivers. There were no warning lights or error messages before or during the incident. The cause is UNKNOWN at this time. Rivian has not yet inspected the vehicle, but we are requesting log preservation and a full review. This behavior has not been replicated since, and the vehicle is available for inspection upon request. We believe this may indicate a malfunction in the propulsion system, regenerative braking transition, or creep mode behavior. The incident has been reported to Rivian for investigation.
I was passing another vehicle on the road when the accelerator pedal got stuck on the all-weather floor mat and made the car virtually uncontrollable. I used the brakes to pull the car off the road and to a complete stop before engaging the parking brake and reaching down to dislodge the pedal.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.