New and used 2026 GMC Sierra 2500 AT4 trucks for sale near South Houston, TX

Professional service! I am content with the work. Site is in busy business. The advisor was also in full schedule, but I was good for the time waiting.

Khanh Vu was very informative and helpful. Exemplary customer service! Explained in detail all the issues that I needed to address. I waited for my service and it was completed earlier than promised. Thank you, Linda G

Very knowledgeable and attentive. And, no pressure. Follow up after the sale was stupendous. They did not push us into extras and provided real information.

Great service from Mrs Hernandez, very nice and friendly and knowledgeable she explained everything to me. The process was smooth and swift. Definitely my favorite dealership.

This place had great energy took there time to satisfy me of what I needed and Steven was amazing would definitely recommend this gmc dealership

Good customer service. They sent me new blades to replace the old ones and even offered to install them for free. Thank you for your generosity

Great response, see you soon. They have the vehicle's I would like to test drive, sorry my time is been to busy but I call you soon.

Thank you group 1 south GMC, Pepe and Angel were great. 3rd vehicle from them. Happy Christmas 🎁⛄.

I would definitely purchase my next car from classic ? the staff was friendly and they really help me make a purchase on the right car

Rudain Barazi provided outstanding service during my oil change. He was professional, efficient, and very knowledgeable. Everything was done quickly and with great attention to detail, and he took the time to make sure everything was in perfect condition before handing the car back. The experience was smooth, honest, and stress-free. I highly recommend Rudain Barazi to anyone looking for reliable and high-quality car service.

Went in for an alignment, everything went well, except it took 4 hours, customer service was nice and all but just took way too long.

The guys where straight forward and even drive the car home for me as it was late and dealership was already closed by the time we where all set and I came with my second car

Honestly the BEST car buying experience we have ever had:) I highly recommend Gay Family Auto Trey, Kiss and Steve are amazing. From the time we walked in to the day that Trey delivered my sons truck it was ABSOLUTELY PROFESSIONAL.

I want to take a moment to recognize Anthony Alvarez at Group 1 GMC Buick South for an outstanding car-buying experience. I came into this process already approved and funded through my personal bank, fully prepared to purchase a 2024 Ram Laramie elsewhere. Unfortunately, the lack of professionalism at that dealership led me to walk away at the last minute. Walking into Group 1 GMC Buick South was a breath of fresh air. Anthony immediately stood out ? not as a typical salesman, but as a genuine, respectful, and knowledgeable professional. Anthony is a former Marine, and as a Navy veteran myself, there was an immediate sense of mutual respect and straight-forward communication. He was down-to-earth, transparent, and never once applied pressure. He listened to what I wanted and helped guide me to the right decision based on my needs ? not just the sale. Because of Anthony?s professionalism and integrity, I confidently purchased a 2023 GMC Canyon, and I couldn?t be happier with my decision. In an industry where honest salespeople are hard to find, Anthony is truly the real deal. If you?re looking for someone who treats you with respect, communicates clearly, and genuinely cares about doing right by the customer, ask for Anthony Alvarez. Group 1 GMC Buick South is lucky to have him.

I received excellent service from everyone who helped with my car purchase. Everyone worked hard to make sure that I was satisfied with my purchase, and I really appreciate the patience and helpfulness that I was shown.

As always everyone treats me as if I am Family! Great people and great service They make the experience a good one Every time all the time.

Professional and polite was greeted upfront from the beginning. Work was done quick. Great job

Great, Vickie?s the best service writer that I have ever had. The dealership looks after their customers, and makes sure they are satisfied with the results of the repaired vehicle.

Enjoyable experience in and out knowledgeable salesman the guy who handled my financing was great they made it seem very easy I would definitely recommend it to friends and family, which I already have.

Daniyel has been so great and helpful. Amazing man, very honest, and excellent communication. I highly recommend asking for him personally if you had to this dealership!