New and used 2026 GMC Terrain for sale near Sunnyvale, TX

I hate singing the service for an intermittent issue likely caused by a computer chip, on board computer or software but it a serious issue when the Adaptive Cruise control just locks the brakes up at cruising speeds over 55 MPH. I am hopeful they will eventually figure out the issue. This time I requested they just deactivate Adaptive Cruise as I?m worried about serious injury. The last time the brakes locked up out of the blue, I almost lost control of the vehicle and it slide sideways almost flipping at 70 MPH.

This is a very beautifu vehicle, very dependable but the gas mileage could be better. With all of the new technology, it is somewhat difficult to remember all of the various control panel options. Also the owner’s manual is very skimpy.

I've been going to this dealer for the 6 years I've had my Buick. Mary was outstanding and a great employee. Great experience again!

Lyn Ford is the best service advisor I've ever encountered. Having owned several Volvos, Toyotas, Hondas and an Audi over the past 30 years, I've encountered quite a few and Lyn is THE BEST. He's straightforward, attentive, keeps you updated, professional and honest. He is an asset to Crest Volvo and a model for the industry. Many thanks to the service and detail teams. They always do a SUPER job with my volvo.

Robbie, my salesman, was outstanding!! He made it painless and is absolutely customer focused. Pricing was ultra-competitive. Dealership was clean. We will definitely go back.

Wonderful people. Kind & very knowledgble. Would recommend them to anybody.

Absolutely phenomenal experience at McKinney Buick GMC, all thanks to Derek! From the moment I walked in, he made the entire car-buying process seamless, stress-free, and enjoyable. Derek?s professionalism, knowledge, and genuine care for his customers are unmatched. He took the time to understand exactly what I was looking for and made sure I got the best deal possible. There was never any pressure?just honest guidance and top-tier customer service. He went above and beyond to ensure every detail was taken care of, making this the best car-buying experience I have ever had. If you?re in the market for a vehicle, do yourself a favor and ask for Derek. You won?t be disappointed! I cannot recommend him enough and will definitely be sending friends and family his way. Thank you, Derek, for setting the gold standard in customer service!

Service was very good. It exceeded all expectations, which were very high to start with. I was met right away at my door and was walked through the whole process. Even on the pick up , I was greeted at the door and helped until I left. I apologize for not responding earlier.

I wanted to purchase a new vehicle and Terry was the sales man who also sold my mom a car his kindness and understanding made me me feel comfortable. His customer service was spectacular. The finance person was also so kind. I will recommend this dealership to others. They know how to make their customers feel valued.

Several sales personal where informative and knowledgeable in customer service. I didn’t purchase a vehicle but will give Vanguard the first choice at sales.

Nice sales people. Easy to work with, but would not move on the price of the car.