NHTSA Complaint #11601455 — 2018 CHRYSLER PACIFICA

The contact owns a 2018 Chrysler Pacifica. The contact stated that while driving at slow speeds, the vehicle transmission shifted to park with the START/STOP system warning light illuminated. The contact took the vehicle to an independent mechanic where an unknown repair was performed; however, the failure persisted. The contact then took the vehicle to the dealer and was informed that the gear shifter module needed to be replaced. About a year later, the contact stated that the START/STOP warning light and the check engine warning light were illuminated. The vehicle was taken back to the dealer where a misfire in cylinder #6 was found. The dealer flushed the engine, replaced the ignition coils, and replaced the spark plug in cylinder#6. Despite the repairs, the contact became aware of a slight engine rattle at start up. The contact continued to drive the vehicle however, the check engine and START/STOP warning lights returned. The vehicle was taken back to the dealer where the contact was informed that the failure might be linked to a blown head gasket but could not determine the failure without an official diagnostic test. While the contact's husband was driving from the dealer, the engine started to overheat. The vehicle was driven to the residence and then towed to an independent mechanic and the vehicle was diagnosed with head gasket failure. The manufacturer was notified of the failure and advised the contact to have the vehicle towed back to the dealer to be diagnosed. The vehicle was towed back to the dealer and remained in the dealer possession. The vehicle was not repaired. The failure mileage was approximately 36,000.