The Best GMC Repair in Flat Rock, MI

Compare the highest-rated gmc repair mechanics in Flat Rock, Michigan. All shops are licensed, insured, and verified through our rigorous screening process.

#1

Golling Buick GMC of Flat Rock

4.6
(280 reviews)
Verified

As the official Buick and GMC dealership in Flat Rock, this is the premier destination for factory-trained service. Their technicians have direct access to the latest GM diagnostic tools, technical service bulletins, and OEM parts. They are the most equipped facility in the area for complex electrical diagnostics on Denali models and warranty work.

26230 Gibraltar Rd, Flat Rock, MI 48134

Specialties & Features

Denali electronics
features
Allison transmission repair
Duramax diesel service

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

A&D Automotive

4.8
(150 reviews)
Verified

A highly reputable independent shop known for its expert diagnostics and personalized service. They have built a strong local reputation for handling complex drivability issues, particularly with gasoline and diesel engines. Their reviews frequently highlight their honesty, expertise with GM vehicles, and effectiveness in solving problems that other shops could not.

28490 Telegraph Rd, Flat Rock, MI 48134

Specialties & Features

EcoTec engine diagnostics
Duramax diesel service
4WD and towing system service

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

Pro-Tech Automotive & Diesel Repair

4.5
(90 reviews)
Verified

While serving a broad range of vehicles, Pro-Tech has developed a significant niche in truck and diesel service. They are a strong alternative for GMC owners, especially those with heavy-duty (HD) models requiring suspension work, diesel maintenance, or transmission service outside the dealership environment. They are well-regarded for their practical, cost-effective solutions.

28448 Telegraph Rd, Flat Rock, MI 48134

Specialties & Features

Heavy-duty truck suspension
Duramax diesel service
Allison transmission repair

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top GMC Repair Auto Repair Shops in Flat Rock

** The GMC repair market in Flat Rock, Michigan, is characterized by a mix of the dominant factory dealership and several highly competent independent shops. As a community with a strong automotive manufacturing presence (including the Flat Rock Assembly Plant), the expectation for quality mechanical work is high. **Average Quality:** The quality of service is generally above average, with multiple shops possessing the expertise to service complex GMC systems. The competition drives a focus on customer satisfaction. **Competition Level:** The market is moderately competitive. The dealership (Golling) holds the advantage for brand-specific warranty work and cutting-edge electronics. Independents like A&D Automotive and Pro-Tech compete effectively on price, personalized service, and often, faster turnaround times for non-warranty repairs. **Typical Pricing:** Pricing follows a standard tiered structure. The dealership typically commands the highest labor rates, reflecting factory training and OEM part costs. Independent specialists offer more competitive labor rates, often 10-20% lower, while still providing high-quality service and, in many cases, using OEM-quality parts. For a standard service like an oil change on a Sierra with a 5.3L EcoTec, expect to pay $80-$120 at a dealer and $60-$90 at an independent. Major repairs like a Duramax injector replacement or Allison transmission overhaul will be a significant investment at any reputable facility, but independents can provide meaningful savings.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All shops are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Flat Rock regulations and climate