The contact owns a 2015 Jeep Grand Cherokee. The contact stated that while getting a routine oil change shortly after, the warning light for a throttle box illuminated. The contact stated that in the past after getting the same oil change, the warning light for the tire pressure sensor light was illuminated. The contact took the vehicle to the dealer who determined no failure indicated for the tires. The contact stated that every time they brought the vehicle in for inspection no failure was indicated despite the contact filling the tires with air. The contact stated that while driving on the freeway when they were attempting to drive the speed limit of 65 mph their vehicle could not accelerate beyond being between 45-50 mph. The contact was able to pull off the ramp where the vehicle eventually came to a seize. The vehicle began to smoke on the front end. The vehicle never turned into a full-blown fire however it did remain extremely overheated for a total of about 2 days. There were no injuries or medical attention needed. There was no police report. The vehicle was towed to the dealer. The vehicle was diagnosed that the head gasket had blown and the engine had melted. The vehicle had not been repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 117,000.