GMC Repair Services in
Phoenix, AZ

Want a Shop That Cares?

Local Service and Repair of GMC Vehicles

At J-N-J Auto Service in Phoenix, AZ, 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.

Curious About Our Reputation?

Read Testimonials From Happy Customers

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5-star review by Melissa F.

"Honest, trustworthy, and good at what they do! So very thankful to have been referred to Jim and his team. They communicate and genuinely get to the bottom of what’s going on without charging excessively. Hard to find in this industry. They will be taking care of  my vehicle from now on."
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5-star review by KelsiJo Wayman

"the kindest people! omar is the greatest he is always so friendly, answers all my questions in a way I understand and really takes the time to make sure everything is fixed before giving my car back. the owners really care about their shop and take the time to show they care. amazing place! I will always take my car here"

5-star review by Danniel Keyley

"I felt my trucks front end was needing some attention. And realized it needed immediate attention when I saw the right front tire was starting to wear a hole in the fender well. The turnaround was less than 24 hours, price very reasonable. I've been using J-N-J Auto Service for a while now. They are my shop of choice. My truck is riding as it should once again."

5-star review by Raquel Vazques

"I took my Jeep Wrangler for tire alignment, and they did not disappoint .

5-star review by Pamela Jenson

"I called at about 11am for an oil change. They said come right in. I did. And an hour later I was on my way home. They were very friendly and reasonably priced. I will go there again. It was clean and I could watch my truck being worked on in the bay on the TV in the waiting room. I will recommend this place to everyone."

5-star review by Melissa F.

"Honest, trustworthy, and good at what they do! So very thankful to have been referred to Jim and his team. They communicate and genuinely get to the bottom of what’s going on without charging excessively. Hard to find in this industry. They will be taking care of  my vehicle from now on."

Looking for a Local Auto Specialist?

Find J-N-J Auto Service in Phoenix, AZ

Serving GMC owners across Phoenix, AZ and the surrounding region

Conveniently located in the heart of Phoenix, Arizona, J-N-J Auto Service proudly serves drivers throughout Maricopa County and beyond. Our shop sits at 3528 W Cactus Rd Suite B, offering easy access for customers traveling from all parts of the Valley. Whether you’re heading in for routine maintenance or complex engine diagnostics, our location ensures a smooth and convenient experience for every visit.


As a family-owned and ASE-certified auto repair shop, we combine trusted expertise with a local touch, helping both domestic and import vehicle owners get reliable, top-quality repairs. With flexible weekday hours and friendly service, we make car care simple for Phoenix residents and neighboring communities.

  • Avondale
  • Buckeye
  • Cave Creek
  • Chandler
  • El Mirage
  • Fountain Hills
  • Gila Bend
  • Glendale
  • Goodyear
  • Guadalupe
  • Laveen
  • Litchfield Park
  • Mesa
  • New River
  • Paradise Valley
  • Peoria