A Buick Enclave and GMC Yukon next to each other on the road | South Texas Buick-GMC in McAllen, Texas

Welcome to South Texas Buick-GMC. From new and used vehicles to accessories and service, our GM dealership in McAllen is proud to serve all your automotive needs, whether you're from Mission, Edinburg, Hidalgo County, or anywhere else in the Rio Grande Valley.

Committed to Excellence

Our automotive team is committed to excellence in everything we do. Nearly every year since 2006, we've won GM's prestigious Mark of Excellence award. It's only given to dealerships that offer the best in customer service, sales results, and quality.

As the Rio Grande Valley's premier dealer for parts, services, tires, accessories, and new and used vehicles, we're conveniently located on the corner of West Expressway 83 and Bentsen Road just off Interstate 2. We're mere minutes from McAllen Miller International Airport and Mission's Walmart Supercenter.

Committed to Safety

At South Texas Buick-GMC, we continue to put your health and safety first with Buick and GMC CLEAN. Whether we're delivering your new vehicle or returning it to you after service, cleanliness remains a major priority for our service and sales teams. We strive to always follow enhanced cleaning procedures, using CDC-approved cleaners on your car's instrument panel, plastic surfaces, seats, and carpets.

Committed to Friendly Sales and Service

Whenever you visit South Texas Buick-GMC, we'll do our best to provide you with a great experience, earn your trust, and win you back as a repeat customer. We have a quality selection of great vehicles like the new GMC Sierra, the GMC Acadia, and the Buick Encore GX.

Our expert sales team will help you find the right model for your needs, and our friendly finance staff will assist you with a wide variety of loan and lease options for every budget and credit situation. And of course, we also sell high-quality parts and provide expert service for all your maintenance needs - from routine tune-ups to complicated repairs.

Have questions? Don't hesitate to call us at 956-467-1305 or contact us online!


    4220 West Expressway 83
    McAllen, TX 78501

    • Sales: (956) 467-1305
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4220 West Expressway 83
Directions McAllen, TX 78501

  • Contact: (956) 467-1305


  • Monday 9:00 am - 8:00 pm
  • Tuesday 9:00 am - 8:00 pm
  • Wednesday 9:00 am - 8:00 pm
  • Thursday 9:00 am - 8:00 pm
  • Friday 9:00 am - 8:00 pm
  • Saturday 9:00 am - 8:00 pm
  • Sunday Closed