2025 Rivian R1S Forward collision avoidance Problems

“Vehicles autonomous driving has failed several times. The system changes from autonomous driving to adaptive cruise control without giving the normal alerts for the driver to take the wheel, giving me or my spouse no time to properly react. This system failing resulted in the vehicle going into a ditch. The autonomous driving automatically switched to adaptive cruise control without warning, the lane keeping system also failed as it gave no warning and did not push the vehicle back into the lane either. …”

“I own a R1S and the vehicle is less than 900miles old (21st day of ownership). When driving today on the highway at 75miles - the vehicle suddenly decelerated to 51 miles. I almost got rear ended by a truck and was very difficult to manoeuvre to safe place from the left lane to the right most lane. I parked in a safe spot and saw through several customer Complaint forums that we need to do a hard reset. But the messages were from customers that are 3 years old. I am surprised this still exists as a complaint. I almost died today”

“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. …”

“While driving the entire computer shuts down and reboots, both screens go black for several minutes. Speed display disappears, turn signals stop working, after the screens come back on there are warning lights for emergency braking disabled, cruise control disabled, and the headlights won’t come on for several minutes.”

“Infotainment system on multiple occasions has started to have lag. Once the lag is present dragging fingers across the main infotainment screen ie navigating a map will cause the vehicle to disengage adaptive cruise/highway assist while driving at any speed. This can also be noted when as the audio output will go out at the same time. Swiping multiple fingers fast as in rubbing something off the screen will cause the system to lag as well.”