Top 3 GMC Repair Shops in Knoxville

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

#1

Diesel Specialty & Auto Repair

4.8
(240 reviews)
Verified

Widely regarded as the premier diesel specialist in the region. They focus heavily on Duramax diagnostics, performance, and repair, making them a top choice for GMC HD truck owners. Their expertise extends to the Allison transmissions paired with these engines. They are known for technical depth and honest assessments.

1232 Downtown West Blvd, Knoxville, TN 37909

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Ted Russell GMC Service Department

4.4
(180 reviews)
Verified

As the primary GMC dealership in Knoxville, their service department offers factory-trained technicians, genuine GM parts, and direct access to the latest technical service bulletins. This is the definitive source for complex electrical issues, warranty work, and maintaining Denali luxury features and infotainment systems.

9405 Kingston Pike, Knoxville, TN 37922

Specialties & Features

Denali luxury features and electronics
EcoTec engine diagnostics
Towing package maintenance

Business Information

Years in Business:50 years
Licensed:Yes
Insured:Yes
#3

All Pro Automotive

4.7
(190 reviews)
Verified

A highly reputable independent shop known for comprehensive diagnostics and servicing a wide range of domestic vehicles, including GMC trucks and SUVs. They receive consistent praise for their work on transmissions (including the newer 10-speed) and 4WD systems. They are a strong alternative to the dealership for complex mechanical repairs.

5508 Western Ave, Knoxville, TN 37921

Specialties & Features

Transmission repair (Allison
10-speed)
4WD and towing system service
General GMC maintenance

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes

Why These Are the Top GMC Repair Auto Repair Shops in Knoxville

** The GMC repair market in Knoxville is robust and competitive, reflecting the popularity of the brand in East Tennessee. The quality of service providers is generally high, with a clear distinction between specialists. * **Average Quality & Competition:** The market is segmented. The dealership (Ted Russell) provides OEM-level service and is essential for warranty and complex electronics. Independent specialists like **Diesel Specialty** and **All Pro Automotive** offer deep, focused expertise on powertrain and drivetrain components, often at more competitive labor rates. There is healthy competition, driving a strong focus on customer service and quality workmanship. * **Typical Pricing:** Pricing follows the standard tiered structure. Dealership labor rates are typically the highest ($150-$180/hr), reflecting factory training and overhead. Top-tier independents command slightly lower but still premium rates ($130-$160/hr) due to their specialized expertise. General repair shops are less expensive but often lack the specific tools and training for complex GMC systems like Duramax or advanced electronics. * **Key Takeaway:** For GMC owners, Knoxville offers excellent options. The choice often comes down to the specific repair need: the dealership for electronics and warranty, a diesel specialist for HD trucks, and a top-rated independent for major mechanical systems like transmission and 4WD.

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 Knoxville regulations and climate