2025 RIVIAN R1S

SUMMARY OF PROBLEM: Vehicle experienced sudden uncontrolled acceleration and deceleration while driving on busy road with family as passengers on November 16 2025. Vehicle provided no warning before loss of control occurred. Created immediate risk of collision and serious injury. DETAILED DESCRIPTION: On November 16 2025 at approximately 5:25 PM ET, my 2025 Rivian R1S experienced sudden uncontrolled acceleration and deceleration while driving on a busy roadway. The vehicle began accelerating and decelerating erratically without driver input, creating immediate risk of rear-end collision or loss of control. No warning lights or messages appeared before the incident. The vehicle displayed "Thermal Fault Detected" and "Coolant Level Low" messages only after the erratic behavior began. This incident occurred with my family in the vehicle and created serious risk of injury or death. I was forced to have the vehicle towed. PRIOR RELATED INCIDENTS: This is not the first safety issue with this vehicle. Service Request SR-RAB3DU1AM documents "Emergency Braking Mistakenly Triggered on Regular Roadway" from August 29 2025 that remains unresolved in Rivian's system. The vehicle has required multiple service visits for thermal and cooling system failures at only 15000 miles. MANUFACTURER RESPONSE: Rivian service center claims rodent nesting caused thermal system failure leading to loss of vehicle control. If correct, this indicates critical design flaw - environmental factors should not be able to compromise vehicle control systems without warning or failsafe mechanisms. Vehicle lacks adequate: - Warning systems for thermal degradation before catastrophic failure - Failsafe mechanisms to prevent loss of control - Protection of critical systems from environmental factors SAFETY CONCERN: If thermal system damage can cause sudden loss of vehicle control without warning, this represents unreasonable safety risk. Other R1S vehicles may be at risk of similar failures.

The rear doors cannot be opened in an emergency when electrical power is interrupted. Although the Rivian R1S generation 2 Owner's Manual has a process to open the door, the process could not be performed by a reasonable person in a reasonable amount of time, in an emergency such as a battery fire. The process could definitely not be performed by children. The process requires physically destroying one the side panels and then reaching deep into the interior cavern of the door to hunt for a wire to pull. The process cannot be practiced, nor can it be taught to children, because it involves destruction of the side panel of the door. The side panel cannot be replaced without scheduling a service appointment and ordering a replacement part from Rivian. As a result, my children's life is irresponsibly endangered in case there were to be an accident, especially a battery fire, which would both cut electrical power and also risk burning to death for my children trapped in the back of the car with no way to open the doors.

Regarding the Safety Recall mentioned below, I reached out to Rivian Service Center. They are not giving me an ETA to fix this and no alternate is given. Is there anyways NHTSA help me by making Rivian Automotive LLC take responsibility and address the issue sooner than later ? They dont have a fix for below safety recall and no ETA on when they can fix it. Its really disappointing to see the lack of accountability. Appreciate your help in this matter. best regards [XXX] Jun 13,2025 Manufacturer Recall NumberFSAM-1693 NHTSA Recall Number25V-387 Recall StatusRecall Incomplete, remedy not yet available Summary Rivian Automotive, LLC has decided that certain model year 2025 Rivian R1S and R1T vehicles fail to conform to Federal Motor Vehicle Safety Standard (FMVSS) 108 and Technical Standards Document (TSD) 108 - “Lamps, reflective devices, and assoc. equipment.” Safety Risk Diminished front turn signal lamp performance may cause reduced awareness of the vehicle’s intent to turn for road users in front of the vehicle. Reduced awareness of intent to turn may increase the risk of a crash. Rivian is not aware of any crashes, injuries, or fatalities related to this condition. Remedy Pursuant to its recall determination, Rivian will inspect and/or replace the front turn signal lamps on the potentially affected vehicles free of charge. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)