Brake problems in GM EVs draw greater federal scrutiny

General Motors EVs—including models built with Honda—are facing heightened scrutiny from the U.S. National Highway Traffic Safety Administration after hundreds of incidents, including more than 20 crashes or fires and at least six injuries. The concern extends beyond EVs to certain non-electric models, including the Chevy Colorado, GMC Canyon, and the Buick Enclave and Envision. NHTSA says more than 1 million vehicles may be affected. The investigation began in April 2024 after complaints about 2023 Cadillac Lyriq vehicles. On Monday, NHTSA’s Office of Defects Investigation upgraded the probe to an “engineering analysis,” the highest ODI stage before a recall. Initial reports cited a “Brake System Failure” message, while GM attributed the issue to fractures in the spindle of its eBoost brake-by-wire system.