NHTSA Complaint #11478563 — 2018 CHEVROLET MALIBU

The contact owns a 2018 Chevrolet Malibu. The contact stated the vehicle's reduce engine warning light would illuminate at various speeds. The contact would pull over unlock then lock the vehicle in order for the vehicle's warning light to no longer illuminate and to regain proper function. While driving 75 mph when the engine warning light stating reduced speed illuminated. The mph dropped to about 25 mph. The vehicle's OnStar displayed a message stating that the antilock brake system was detected and the vehicle powered off shortly after. The vehicle was towed to a certified mechanic who diagnosed that the crankshaft needed to be replaced. The vehicle had not been repaired. The manufacturer was made aware of the failure and informed the contact that their vehicle was not included in any recall. The failure mileage was unknown.