Top 3 GMC Repair Shops in Grass Valley

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

#1

GMC of The Dalles

4.5
(180 reviews)
Verified

As the official GMC dealership for the region, this facility offers the most comprehensive and factory-direct service for GMC vehicles. Their technicians are GM-certified and have direct access to the latest technical service bulletins, specialized tools, and OEM parts for everything from Duramax diesels to Denali electronics.

3515 W 6th St, The Dalles, OR 97058

Specialties & Features

Duramax diesel service
Allison transmission repair
Denali luxury features and electronics

Business Information

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

Morrow County Repair

4.7
(95 reviews)
Verified

A highly-rated independent shop with a strong reputation for handling heavy-duty trucks and diesel engines. While not GMC-exclusive, their reviews and service listings frequently mention expertise in Duramax engines, Allison transmissions, and suspension work on GM trucks, making them a top-tier independent alternative to the dealership.

205 N Main St, Heppner, OR 97836

Specialties & Features

Diesel engine service
Heavy-duty truck suspension
Transmission repair

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes
#3

I-84 Automotive & Diesel

4.3
(70 reviews)
Verified

Located strategically along the major interstate, this shop has built a solid reputation for servicing the trucks that travel through the Columbia River Gorge. They advertise specific expertise in diesel diagnostics and repair, including Duramax platforms, and are experienced with the towing and 4WD systems common on GMC Sierra and Canyon models.

204 E 2nd St, The Dalles, OR 97058

Specialties & Features

EcoTec engine diagnostics
Towing package maintenance
4WD system service

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes

Why These Are the Top GMC Repair Auto Repair Shops in Grass Valley

** The GMC repair market serving Grass Valley, Oregon is characterized by a reliance on service providers in larger, neighboring towns, primarily The Dalles, which acts as the regional commercial hub. Due to Grass Valley's small size and rural location, there are no dedicated GMC-only specialists within the city itself. The competition level is moderate, with a clear tiered structure: the official GMC dealership offers the highest level of brand-specific technical expertise for complex electronic and powertrain issues, while well-regarded independent shops in the region compete on price, personalized service, and specialized knowledge in diesel and heavy-duty systems. Typical pricing reflects this structure, with the dealership commanding premium labor rates for factory-certified work, while independent shops offer more competitive rates, often 10-20% lower. The average quality of service is high, as shops in this agricultural and truck-dependent region must be competent in handling the demanding needs of modern, complex pickup trucks and SUVs. For a resident of Grass Valley, a 30-45 minute drive to a specialist is the standard for ensuring high-quality repair work on their GMC vehicle.

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 Grass Valley regulations and climate