Complaint 2104383
2023 GMC TERRAIN • ENGINE • incident Jun 22, 2025
Complaint Summary
ENGINE
Owner Narrative
The contact owns a 2023 GMC Terrain. The contact stated while driving 15 MPH, the message "Engine Power Reducedâ was displayed on the instrument panel. The contact stated that the vehicle the lost motive power in the middle of the roadway. The check engine warning light was illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the high-pressure fuel pump, causing fuel to leak into the oil, resulting in damages to the catalytic converter and Oxygen sensor. The vehicle was not repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 41,000.
Owner-submitted narrative on file with NHTSA. Complaint narratives are self-reported and have not been verified.