I bought my 2012 CTS V Sedan in July of 2012 and it has almost been 1 year since I purchased it. I had horrible experiences with the dealer within the first 2 months of ownership (damage, horrible repairs, lies .. etc) to the point after I had the last group of issues resolved I swore I would never take my car back to the dealership for any reason. Fast forward to today and being it is almost a year since purchase, I am being bombarded with Dealer post cards, phone calls and emails stating my car is due for its Warranted 1st Year of Service. I have changed the oil and filter in the car 3 times since I bought it and have only put less than 4,500 miles on it since I purchased it almost a year ago.
My question is, am I required to take my car to the Dealer for regular maintenance intervals to maintain my warranty with GM? Or can I have the service done elsewhere and still get all the benefits of the GM Warranty? Also, is there anything major they would do for this first year service that I should actually risk taking my car back to the Dealer for that service. Thanks and appreciate any input provided.