NHTSA escalates probe into GM's eBoost brake system after crashes, injuries
The National Highway Traffic Safety Administration has upgraded its investigation of brake failures in GM's eBoost brake-by-wire system to an engineering analysis, its most serious pre-recall step. The probe covers over 1 million vehicles, including Cadillac Lyriq EVs built with Honda, plus Chevy Colorado, GMC Canyon, Buick Enclave and Envision models, following hundreds of complaints, over 20 crashes or fires, and at least six injuries.