The Best GMC Repair in Morristown, NJ

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

#1

Morristown Buick GMC

4.5
(280 reviews)
Verified

As the factory-authorized dealership, this is the premier destination for GMC service, especially for complex electronics and warranty work. Their technicians are GM-certified and have direct access to the latest technical service bulletins, specialized tools, and OEM parts.

229 Ridgedale Ave, Morristown, NJ 07960

Specialties & Features

Denali luxury features and electronics
Allison transmission repair
EcoTec engine diagnostics

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#2

Precision Auto & Diesel Repair

4.8
(150 reviews)
Verified

A highly-rated independent shop known for its expertise in both diesel and gasoline powertrains. They have built a strong reputation for technical competence, honest diagnostics, and personalized service, often attracting owners of heavy-duty Sierra trucks and Yukon Denalis.

10 Franklin St, Morristown, NJ 07960

Specialties & Features

Duramax diesel service
Heavy-duty truck suspension
Towing package maintenance

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#3

M & M Tire & Auto Center

4.6
(190 reviews)
Verified

A long-standing, full-service shop with a strong focus on drivetrain and suspension systems. They are a trusted local provider for 4WD service, alignments, and transmission work, making them an excellent choice for GMC trucks and SUVs used for towing and off-pavement driving.

266 South St, Morristown, NJ 07960

Specialties & Features

4WD and towing system service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

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

** The GMC repair market in Morristown is robust, characterized by a clear tiered structure. At the top is the authorized dealership (**Morristown Buick GMC**), which commands a premium price but offers the highest level of brand-specific technical resources, particularly for complex electronics and proprietary systems found in Denali models. The independent market is competitive, with several high-quality shops vying for business. Shops like **Precision Auto & Diesel** have successfully carved out a niche by specializing in high-demand areas like diesel repair, allowing them to compete effectively on expertise for specific services. **M & M Tire & Auto** represents the well-established, generalist auto center that has evolved to handle the complex 4WD and transmission systems common on GMC vehicles. Typical pricing follows this hierarchy: dealership labor rates are the highest, often 15-30% more than independents. Specialists like Precision Auto & Diesel may charge a premium for their diesel and transmission expertise but typically remain below dealership costs. Generalists like M & M offer competitive pricing for mechanical work but may not be the first choice for advanced electronic diagnostics. Overall, GMC owners in Morristown have access to excellent service options across different price points and specializations.

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 Morristown regulations and climate