GoKawiilNHTSA 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.
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An engineering analysis often precedes a formal recall order, signaling regulators believe GM's earlier fixes and explanations haven't resolved the underlying danger. Since eBoost removes the mechanical link between pedal and brakes, any flaw raises broader questions about the safety of brake-by-wire technology as automakers push it into more vehicles.
- NHTSA has escalated its GM brake probe to an engineering analysis, the last step before a possible recall.
- Over 1 million vehicles across GM brands, including EVs and gas models, may be affected by eBoost brake failures.
- Complaints describe sudden loss of brake assist mid-stop, contradicting GM's claim the issue was only a spindle fracture.
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Published there as: “Brake problems in GM EVs draw greater federal scrutiny”
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