NHTSA Expands GM Brake Probe to 1.1 Million Vehicles as 12 Models Show eBoost Risks
Updated
Updated · Detroit News · Aug 24
NHTSA Expands GM Brake Probe to 1.1 Million Vehicles as 12 Models Show eBoost Risks
3 articles · Updated · Detroit News · Aug 24
Summary
More than 1.1 million GM, Honda and Acura vehicles are now under an expanded federal engineering analysis over eBoost brake-by-wire failures, widening an April probe that began with the 2023 Cadillac Lyriq.
227 incident reports since April—745 in total—describe loss of brake assist, including cases of sudden failure during braking that regulators said could extend stopping distance; NHTSA has linked the issue to 22 crashes and six injuries, with no deaths.
The review now covers 10 additional GM models plus the Honda Prologue and Acura ZDX, all sharing the same eBoost system used across trucks, EVs and crossovers from model years 2023-2026.
GM has said spindle fractures leave ABS, stability and traction control working until a vehicle stops, but regulators said newer complaints do not match that explanation and have not yet ordered a recall.
The brake case adds to mounting U.S. auto-safety scrutiny as common platforms and software spread defects across more models; NHTSA also opened a separate probe Friday into nearly 1 million GM vehicles over possible engine failure.