Feds probing GM engine failures in nearly 900K vehicles — including its best-selling model
1. NHTSA investigates 877,710 GM vehicles for engine failure complaints. 2. 39 complaints reported engine seizing without warning, risking crashes. 3. Affected models include popular Silverado and high-end Cadillac Escalade. 4. GM sales up 4.3% in 2024 but scrutiny could dampen outlook.