NHTSA Complaint #11590609 — 2019 CHEVROLET EQUINOX

The contact owns a 2019 Chevrolet Equinox. The contact stated that while driving at 65 MPH, the "Service Brake Assist" message briefly flashed on the instrument panel. The vehicle then independently downshifted and decelerated to 30 MPH, with the brake pedal depressed to the floorboard. The contact was unable to stop the vehicle but was able to coast the vehicle to an independent mechanic. The contact was able to turn off the vehicle after the failure; however, the mechanic was unable to diagnose the vehicle. The vehicle was then towed to a dealer where a mechanic informed the contact that the vacuum pump had failed and sent debris through the camshaft. The contact was informed that the vacuum pump, timing chain, cam shaft, and pistons all needed to be replaced. The manufacturer was notified of the failure and the contact was given a reference number. The vehicle was not repaired and remained in the possession of the dealer. The failure mileage was approximately 100,000.