What 37 owners told NHTSA about the 2023 Rivian R1t Bev

Rivian R1T was brought to independent tire center for tire rotation on same day before 1,000 mile trip. Technician documented: "Drivers side front CV axle bolt almost completely backed out". Bolt took less than one rotation by hand to come off. Documented by tire shop technician. - Possible safety impact by possible failure of half-shaft and loss of steering control and/or wheel loss - The vehicle is scheduled for an inspection by manufacturer July 14, 2025 - There were no warnings or symptoms prior to discovery

NHTSA ODI 11671561

1. The powertrain, acceleration system, and defrost system failed. The vehicle unexpectedly entered Limited Performance Mode, but instead of allowing reduced acceleration as expected, it resulted in a complete loss of power and left us stranded in traffic. Additionally, a defrost system failure warning appeared, causing a loss of visibility. The vehicle is currently at a Rivian service center, and it should be available for inspection upon request. 2.The vehicle became completely unresponsive while on a single-lane on-ramp overpass, leaving us stranded in moving traffic. Other vehicles were traveling at 50-60 mph, and drivers had to swerve abruptly to avoid a collision. This failure created an imminent risk of a rear-end or multi-car accident, putting my wife and me—and other drivers—at serious risk of injury or death. Additionally, the defrost failure further compromised visibility, making it even more dangerous to remain in the vehicle while waiting for assistance. 3.The vehicle is currently at the Rivian service center, but Rivian has not yet provided a definitive diagnosis or explanation for the failure. We are awaiting their response and further inspection. 4. The vehicle is at Rivian’s service center, where it is undergoing inspection by the manufacturer. However, it has not yet been inspected by police or insurance representatives. 5. Yes, the “Limited Performance Mode” message appeared, but according to Rivian’s own system, the vehicle should have still allowed for reduced acceleration. Instead, it lost all power completely, leaving us stranded. Additionally, a defrost system failure warning appeared at the same time, preventing us from defrosting the windshield.

NHTSA ODI 11644509

Was driving on the highway in the left lane at roughly 80 mph and suddenly lost regenerative braking and almost got into an accident not realizing I had to use my physical brakes to slow down. Truck entered turtle mode and was able to make it safely over and back home. Problem got worse with rattling coming from the front compartment. Front half shaft was discovered to be detached and this will be the third this half shaft has been repaired. Video of the loose half shaft is available.

NHTSA ODI 11567244