US NHTSA opens a safety probe into Rivian EVs over rear‑axle link faults – read more now.
The U.S. National Highway Traffic Safety Administration (NHTSA) has launched a preliminary safety investigation covering nearly 115,000 Rivian electric vehicles, focusing on potential rear‑axle link failures that could cause loss of control.
Background
NHTSA received two owner reports indicating that the left rear‑axle link on Rivian’s R1S and R1T models could detach during operation, making the vehicle unstable and drifting into adjacent lanes.
Findings
The agency’s early assessment suggests that the rear‑axle link itself is not the root cause; however, it will evaluate the sensitivity of the component under real‑world driving and maintenance conditions, as well as Rivian’s current repair procedures.
Manufacturer Response
Rivian confirmed that internal data show the joint operates as designed. The company emphasized cooperation with regulators and stated that the two owner reports “do not demonstrate the joint as the cause of the incidents.”
Recall Actions
In January 2026, Rivian recalled roughly 20,000 R1S and R1T vehicles that had been serviced in the United States because of improperly assembled rear‑axle links. The recall includes free replacement of the affected bolts for affected owners.
Implications
The investigation underscores the importance of rigorous quality checks for high‑performance EVs. Rivian and NHTSA will continue monitoring the fleet to ensure driver safety and prevent future incidents.
Key Points
- Nearly 115,000 Rivian EVs are under review.
- Focus on rear‑axle link detachments in R1S and R1T models.
- Rivian provides free bolt replacements for recalled vehicles.
- Ongoing cooperation between Rivian and NHTSA.