I am unsure except for what they told me the engine completely seized up I was heading back from Grand Junction Colorado over Vail Pass nothing appeared wrong with the engine it was going fine and then completely powered itself down and stopped at the top of the pass would not come back on cost me 1100 to tow it down from a mountain getting no assistance from GMC other than they tell me one thing the dealer tells me another this is not the first time I’ve had problems with this it was in the shop from December through February no reimbursements no nothing nothing but problems since I bought it no help I’ve tried to do my best but my husband passed away at the time of all this was going on I could really use some guidance and some answers and what I should do they’re telling me 8 to 10 weeks and they’re not promising any kind of new warranty with this engine take what I have or buy an extended one from them that just doesn’t right