Manifold/header/muffler/tail Pipe problems of the 2017 Dodge Durango

Tl the contact owns a 2017 Dodge Durango. The contact stated that while driving at approximately 55 mph, the contact noticed that there was grey and white smoke coming from the tail pipe. In addition, the vehicle was running hot while the start and stop waring light and the check engine warning light illuminated intermittently. The contact mentioned that coolant was put in the vehicle to cool down the engine. The vehicle was taken to an independent mechanic where it was diagnosed that the coil needed to be replaced and the head gasket was cracked and leaking and needed to be replaced. The contact contacted redlands Chrysler Jeep Dodge ram (500 w redlands blvd, redlands, CA 92373) where they informed the contact that the vehicle was unable to be repaired due to warranty expired. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 80,000.