The appointment set up and rental car went very smooth. I had two items that needed to be looked at for Warranty repair in addition to the oil change/scheduled maintenance. The oil change/scheduled maintenance went fine. One of the items for repair could not be fixed as they did not have the part. Said they would order the part and call when it's in - should be "within a week". Still no calls and has been over a week. Second repair was a vibrating window when being rolled up. They said they cleaned it and it was fixed. Not the case. The window still vibrates when being rolled up. I paid a lot of money for the car and warranty and shouldn't have these types of minor problems. Still waiting for phone call for part for shifter so it can be fixed.
Techs were completely honest about the problem with my truck and the needed repair and cause. I had the repair done elsewhere, though still through GMC, because they paid 2/3 of the repair costs. Kinda like admitting that they screwed up. With out the honesty of the team at Lynch, I would have been stuck with the whole $1800 for a new catalytic converter.