The windscreen on the sunroof on my Acadia Denali did not retract properly when closing and it jammed the roof and broke the track. Luckily it was under warranty! My Service Manager, Luis Jimenz took care of everything. Submitted the request to get the repair authorized under warranty and ordered the parts and called me the next day as soon as my car was fixed. Even though the shop was extremely busy, he took his time to ensure I had my questions answered. Luis is a customer-focused and consummate professional.