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*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
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New and used
2026 GMC Sierra 1500 AT4 trucks
for sale
near
Parker, TX
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.






New
2026 GMC Sierra 1500 AT4






New
2026 GMC Sierra 1500 AT4






New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Jarrett Abel has been my Service Adviser for several
Jarrett Abel has been my Service Adviser for several years. He always takes care of scheduling my appointments and getting my Chevy P/U serviced. The service department does a terrific job of getting vehicles serviced quickly.






New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Robbie, my salesman, was outstanding!
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.






New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Several sales personal where informative and
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.






New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Nice sales people.
Nice sales people. Easy to work with, but would not move on the price of the car.
Vehicle information
Features
Reviews
I hate singing the service for an intermittent issue
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.






Vehicle information
Features
Reviews
Judy Williamson
Wonderful people. Kind & very knowledgble. Would recommend them to anybody.






New
2026 GMC Sierra 1500 AT4
Vehicle information
Features






New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Vehicle information
Features
Reviews
Great experience from start to finish.
Great experience from start to finish. Our salesperson, Clayton Haas, was straightforward and efficient, and got us to the price we wanted






New
2026 GMC Sierra 1500 AT4
Vehicle information
Features

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Sewell Customer for life!
Simply Exceptional service once again! They continue to be a renowned dealer who cares about their customers and reputation. Sewell will always have my business for life.

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
The Beset of the Best
The level of care, kindness, and respect that Tyler Reynolds showed to my wife and I was unlike anything we have experienced at any dealership. Every other person of the Sewell staff was no different. I have always heard great things about Sewell dealerships and we were not disappointed. We worked with Matthew Jobe on the finance end and he was fantastic as well. Both Tyler and Matthew from start to finish provided us a true no pressure deal. I’m convinced that Sewell Buick GMC wants what’s best for my family and budget. It almost feels wrong to say that I really enjoyed the car buying experience at a dealership but it’s the truth. I want to make sure and add that the care and help did not stop when I drove off the lot. Tyler and Matthew have answered every question quickly and professionally since we have had the car. All that being said, my family will never buy from another dealership. These two men have made us Sewell customers for life.






New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
All staff are kind and professional.
All staff are kind and professional. The facility is clean and welcoming. I love the shuttle they offer to take you to and from your home.




New
2026 GMC Sierra 1500 AT4
Vehicle information
Features






New
2026 GMC Sierra 1500 AT4
Vehicle information
Features






New
2026 GMC Sierra 1500 AT4
Vehicle information
Features






New
2026 GMC Sierra 1500 AT4
Vehicle information
Features






New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Vehicle information
Features
Reviews
They had the vehicle I wanted so it was fast, easy on the
They had the vehicle I wanted so it was fast, easy on the paperwork, and I got a good deal. Bruce is an excellent salesperson!
Vehicle information
Features
Reviews
Very good and courteous staff.
Very good and courteous staff. Had difficulty locating my appointment but all went smoothly afterwards. Picked up my car in no time. It is always washed for me!
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
GMC Sierra 1500 trims
-
GMC Sierra 1500 2026 Denali
93 listings starting at $75,975
-
GMC Sierra 1500 2026 SLT
89 listings starting at $60,500
-
GMC Sierra 1500 2026 Elevation
82 listings starting at $50,228
-
GMC Sierra 1500 2026 Denali Ultimate
47 listings starting at $84,790
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GMC Sierra 1500 2026 AT4
41 listings starting at $69,755
-
GMC Sierra 1500 2026 Pro
22 listings starting at $39,941
-
GMC Sierra 1500 2026 AT4X
20 listings starting at $79,390
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