2025 Rivian R1S Brakes Problems

“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. …”

“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. …”

“On September 20, 2026 at approximately 10:29 a.m. CDT, while traveling on Interstate 30 between Greenville and Royse City, Texas, my 2025 Rivian R1S Gen 2 experienced sustained unintended acceleration in an active construction zone with concrete barriers and no immediate safe exit. I applied very heavy, sustained braking to counter the acceleration until we reached a break in the barriers and could leave the highway. Substantial smoke was then coming from the wheel/brake areas. We were initially unable to place the vehicle in Park; after a vehicle reboot, we were able to shut it down. …”

“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. …”

“The contact owned a 2025 Rivian R1S. The contact stated that while driving 24 MPH, the other vehicle switched lanes in front of the contact's vehicle. The other driver had a learner's permit. The contact depressed the brake pedal, but it traveled down to the floorboard, and the vehicle failed to respond. The vehicle was pushed into the cement divider. The vehicle came to a stop when it crashed into a light pole inside the cement divider. The contact was unsure whether there was a warning light illuminated. The air bags deployed. A police report was filed. …”