This truck is a safety hazard in the summer to drive. It will without warning in hot weather, failed to accellerate. As the pedal is pushed further to the floor the engine will lose RPM. It will run at an idle and die if accelerator is pushed all the way to the floor. It only does it in warm weather and if allowed to stabilize at an idle can sometimes be driven away. It has done this with passengers in the vehicle and is unsafe. GM has refused to replace parts and I have been told by the vendor that provides the 1-800 line sevice that no parts will be replaced until it logs a code. It does not log a code so I am unable to prove this condition exists. I am not happy and GM is not inclined to take care of the problem. This truck is a lemon and needs to be taken care of. The dealer is ignorant and needs to be shut down. I am not impressed with the GM approach to repair. Ignore a pissed off customer and he will go away. When this truck kills someone it will be to late.

- The Dalles, OR, USA