GM Tried to Fix Its Troubled 6.2-Liter V8, Now Nearly 1 Million Vehicles Are Under Investigation

Unifor and General Motors reached tentative labor agreements for 4,600 workers in Ontario, including wage and benefit increases. The deals follow a similar pattern to Unifor's agreement with Ford. Ratification votes are scheduled for August 29-30. GM Canada's managing director noted the deal aligns with their investments in Canadian manufacturing.

NHTSA's ODI is investigating GM's 6.2-liter V-8 engines (L87) due to continued failures after a recall remedy. The recall, affecting 597,630 vehicles, addressed crankshaft and connecting rod defects. NHTSA received 499 post-remedy failure reports, while GM reported 6,953. The investigation now includes engines produced outside the original recall period.

The NHTSA is investigating nearly 1 million GM vehicles due to engine failure complaints. The probe covers certain GM pickups and SUVs. According to the NHTSA, the investigation follows multiple reports of engine issues.

General Motors (GM) announced a U.S. probe into nearly 1 million vehicles due to engine failures post-recall. The National Highway Traffic Safety Administration's investigation covers 2021-2026 models with L87 engines. GM cited supplier issues as the cause and offered repairs, but failures persisted. ODI received 499 complaints, with GM reporting 6,953. Shares rose 1.95% to $87.83 on the NYSE.

General Motors (GM) raised its guidance, citing strong truck demand offsetting EV and tariff pressures. The company expects 2026 EV losses to improve and 2028 to bring significant progress toward profitability. GM also announced a $4.5 billion purchasing facility to support supply-chain continuity. The company is transitioning to a new truck platform and converting its Orion facility to internal-combustion-engine production.

The U.S. NHTSA is investigating 997,743 GM vehicles, including Cadillac Escalade and Chevrolet Silverado, over engine failure concerns. GM had previously recalled these vehicles in 2023. The probe follows 499 complaints about post-recall failures. GM attributes the issue to a supplier. The NHTSA will assess the effectiveness of GM's fixes.