New and used 2026 GMC Sierra 1500 trucks for sale near Summit, AZ

“I want to thank Don at Quebedeaux GMC for making my purchase of a 2025 GMC AT4 absolutely perfect. Having been in the automotive business for the last 20 years—14 of which were spent at another GMC dealership in the Valley—I was thoroughly impressed with Don’s level of expertise. From the initial phone call to my arrival at the dealership, Don exceeded all expectations. The entire process, including working with finance, was seamless and enjoyable. I highly recommend Don in sales at Quebedeaux GMC when you’re ready to purchase your next GMC!

Easy purchase experience, would recommend to anyone looking for a new car. Everyone there was friendly and made the whole process as smooth as possible

The service I had at Royal Cadillac was beyond what I expected. They made up for the mistakes that parts department made. Rather than have me drive all the way back to Tucson, which is an hour and a half from me, they brought the service man to me. Terry was wonderful. He was even able to get my garage opener programmed in my car. I was so thankful.Erin, I’m sure I misspelling his name, on the day All my problems started was patient kind and thoughtful. Jim, The service manager is another one that went beyond requirements. Royal Cadillac is the second Cadillac Dealer I’ve had to deal with. They so deserve five stars +10. It is so much better than the service I received in California. Thank you again. Kathy Brower

A little expensive, but comfortable, quiet, smooth ride. Great performance out of the 6.2L and better than expected fuel economy in the low 20s. Outstanding interior and good looking exterior, especially in the Downpour Metallic color. I don’t have 700 miles on it yet and have owned it for 3 weeks. Therefore, I can’t pass judgement yet on the reliability, but so far I am very satisfied. This replaced an 8 year old Ford F150 that served me quite well with only a couple of issues in the 100,000 plus miles.

I had such a great experience working with Riley! I don’t live in Tucson and she really worked hard to make my purchase as easy as possible. She really went above and beyond!!! I love my new truck!!!

It was such a good truck honstly the greatest thing I have ever drove in my entire life I am so happy that I have been blessed with this being my first ever car

Like the Sales department the Service department is great, friendly and make you feel comfortable and satisfied with purchasing from GMC. My kids enjoy the waiting area, very comfortable and kid friendly.

The experience with both the salesmens Martin Huerta and Hector Fimbres and Sales Manager Josu� Arenas, was excellent. This is the second vehicle I went thru the purchase process and they made it easy. Now, I definitely have to mention that the finance process and the waiting time to finally sign paperwork it?s ridiculous long. Besides that, everything else it?s great!

All in all the experience was more than what I expected. All were knowledgeable on the vehicles being sold. All were attentive to what I was looking for.

Great everything was handle professional and with courtesy. They provided LYFT transportation to drop of and pick up of my truck. Jay is my service tech and he's always helpful

Had a great time buying a vehicle from Chet at Quebedeaux. He was so knowledgeable and a pleasure to work with. Very enjoyable and professional

Went in for oil change. Got in right away. Out within an hour. Customer Service was great. Facilities very clean. Overall was a great experience.

Susan and Roy were fantastic today helping me with my phone connection and the fob battery. Also answered some of my other questions. Can’t say enough good things about them. They were Great!!