Compare the highest-rated gmc repair mechanics in Brighton, Illinois. All shops are licensed, insured, and verified through our rigorous screening process.
A long-standing, family-owned full-service garage that is the most trusted local option for general and specialized auto repair in Brighton. They are known for their honest diagnostics and ability to work on a wide range of vehicles, including domestic trucks and SUVs. While not a dedicated GMC dealer, they have certified technicians experienced in the common issues faced by GMC owners.
Located a short drive away in Godfrey, J&L is the area's premier specialist for diesel and heavy-duty truck service. They are the top-recommended shop for complex Duramax diesel engine work and heavy-duty towing system maintenance, often servicing customers from Brighton and the wider region who need expert-level care beyond what a general mechanic can provide.
Based in the nearby hub of Alton, Frank's has built a stellar reputation over decades, specifically for transmission expertise. They are a go-to specialist for complex Allison transmission repairs and rebuilds, as well as the newer 10-speed models found in later GMC trucks. Their technicians are also proficient in full drivetrain and 4WD system service.
** The GMC repair market in Brighton, Illinois, reflects its status as a smaller, rural community. There is one dominant, reputable full-service garage (Brighton Tire & Auto) that handles the majority of local day-to-day service needs for GMC vehicles, particularly for the popular EcoTec V6 engines and standard maintenance. For more complex, specialized repairs—especially those involving **Duramax diesel engines, heavy-duty Allison transmissions, or advanced Denali electronics**—residents typically look to the larger commercial centers in the surrounding Metro East area, such as Godfrey and Alton. The competition level is moderate, with a handful of trusted local providers and several high-quality specialized shops within a 20-minute drive. This gives GMC owners excellent options but requires a short commute for top-tier specialty work. Pricing is generally competitive and lower than dealership rates, with general maintenance and diagnostics at local shops being very affordable, while specialized diesel and transmission work commands a premium due to the required expertise and equipment.
4.7+ star average from verified customer reviews
All shops are properly licensed and insured
10+ years average experience in the industry
Familiar with Brighton regulations and climate