GMC Auto Repair Shop in Killeen, Harker Heights, and Fort Hood

Shape Effect | Mayo Autoworks 2

Service and Repair of GMC Vehicles

At Mayo Autoworks 2 and Mayo Autoworks 3 in Killeen and Harker Heights, TX, we're passionate about servicing GMC vehicles. GMC is an American division of General Motors (GM) that primarily focuses on trucks and utility vehicles. GMC is a name you trust, and strength and reliability are just two of the reasons why you chose a GMC automobile. But even the most reliable of vehicles need service from time to time. Your life depends on the hard work your vehicle does; and when your GMC needs service, you need the help of a mechanic you can trust. Whether your GMC is an SUV, a truck, a van, or a utility vehicle, our shop offers you the best GMC service and maintenance in the area.

Our certified technicians understand the value of a hardworking automobile. We offer thorough, quality service that gets your vehicle back to work as quickly as possible. Unlike some shops, we don’t just focus on the mechanical aspects of service.

From the moment you walk through our door until you drive away satisfied, we offer top notch care for customers as well as their vehicles. Our mechanics are happy to share their expertise by answering any of your questions, and we strive to offer a superior customer experience. Whether you need routine maintenance or major repairs, we stand ready to offer the best GMC care to you and your vehicle.

Call the mechanics you trust to service the brand you trust. Call or stop in to schedule an appointment and give your GMC the service it deserves.

Mayo Autoworks 2 - Killeen, TX

Mon - Fri 8 AM - 5 PM | Sat 8 AM - 3 PM

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Mayo Autoworks 3 - Harker Heights, TX

Mon - Fri 8 AM - 5 PM | Sat 8 AM - 3 PM

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Rely on the Word of Others

Trusted by your neighbors for honest repairs

Reviews Stars Rating Icon | Mayo Autoworks

5-star Review by W

"Friendly, nice customer service in all areas. I been going to Mayo Auto works for the last four years and they always make me feel at home from start to finish. They even support made a way to get back to my house when my car was in the shop. They mechanical services always been top notch.I recommend anybody to come to Mayo Autoworks."

Reviews Stars Rating Icon | Mayo Autoworks

5-star Review by Stacey Sanders

"Thank you Bridget for your excellent service! Very friendly people with quick turn around and fair prices. Bridget worked with my warranty company who gave us a bit of a hard time but she made sure I was taken care of. Thanks again Bridget!"

GMC Repair Nearby

Expert GMC Repair and Maintenance in Killeen and Harker Heights

With two convenient locations in Central Texas, Mayo Autoworks 2 in Killeen and Mayo Autoworks 3 in Harker Heights deliver expert-level auto repair, diesel service, and foreign vehicle maintenance backed by ASE, NAPA AutoCare, RepairPal, and Worldpac certifications. Please note: Mayo Autoworks 1, also located in Killeen, is separately owned and operated.


Whether you drive a domestic truck, European import, or heavy-duty diesel, our certified technicians are equipped to serve you with professionalism, transparency, and quality you can trust.


Our Central Texas locations make it easy for drivers in Killeen, Harker Heights, and Fort Hood to access reliable automotive care. From quick oil changes to major transmission work or fleet services, you’ll experience the same high level of integrity, precise diagnostics, and dependable repair quality at both Mayo Autoworks 2 and Mayo Autoworks 3—shops built on decades of local trust.

Areas of Service:

• Killeen

• Harker Heights

• Belton

• Fort Hood

• Nolanville