GM vehicles under federal scrutiny after hundreds of reports

The National Highway Traffic Safety Administration has escalated its investigation into over 1.1 million vehicles produced by General Motors following numerous complaints regarding severe braking issues.

The federal probe centers on GM's electronic brake-by-wire system, commercially known as eBoost, which is installed in a wide range of recent models from 2023 through 2026. This system, utilized in several electric vehicle models as well as partner vehicles manufactured for Honda and Acura, is susceptible to a structural failure where a critical spindle can break while the vehicle is in motion. Although General Motors maintains that affected vehicles should still retain essential handling controls like antilock braking and stability management until they come to a complete halt, federal investigators have received numerous driver reports indicating an immediate and dangerous loss of stopping power upon component failure.

To date, regulatory archives and manufacturer logs show hundreds of documented incidents associated with this mechanical flaw. The safety agency has identified dozens of resulting traffic collisions, which have caused a handful of injuries, though no fatalities have been reported so far. The scope of the inquiry covers an array of prominent sport utility vehicles, trucks, and electric crossovers across the Buick, Cadillac, Chevrolet, and GMC brands, in addition to select cooperative models from Honda. As the federal investigation broadens, safety regulators will continue to analyze driver feedback and engineering data to determine whether a formal recall or further corrective actions will be required to address the electronic braking hazard.