The Best GMC Repair in San Simon, AZ

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

#1

San Simon Truck Stop & Repair

4.3
(85 reviews)
Verified

This is the primary and most prominent repair facility located directly within San Simon. Situated at the I-10 exit, it serves a high volume of commercial and personal trucks. Their technicians are experienced with the heavy-duty platforms that underpin GMC 2500/3500 series trucks, making them a go-to for urgent mechanical repairs, diesel service, and tire work for travelers and locals.

1 Sunland Rd, San Simon, AZ 85632

Specialties & Features

Duramax diesel service
Heavy-duty truck suspension
General mechanical repair

Business Information

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

Willcox Chevrolet Buick GMC

4.5
(150 reviews)
Verified

As the closest authorized GMC dealership, this is the premier choice for complex diagnostics, warranty work, and specialized services requiring factory tools and training. Their technicians are GM-certified and have direct access to the latest technical service bulletins, software updates, and genuine GM parts. This is the most reliable option for Denali electronics, advanced transmission programming, and EcoTec engine diagnostics.

801 S Haskell Ave, Willcox, AZ 85643

Specialties & Features

GMC factory certifications
Denali luxury features and electronics
Allison transmission repair

Business Information

Years in Business:40 years
Licensed:Yes
Insured:Yes
#3

Douglas Automotive & Diesel

4.6
(120 reviews)
Verified

A highly-rated independent shop in the larger nearby city of Douglas. They have built a strong reputation for honest diagnostics and quality work on both domestic and import vehicles, with a growing focus on diesel and truck services. They are an excellent alternative to the dealership for comprehensive transmission service, 4WD system maintenance, and general repair, often at a more competitive labor rate.

1312 G Ave, Douglas, AZ 85607

Specialties & Features

Transmission repair (Allison
10-speed)
4WD and towing system service
EcoTec engine diagnostics

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in San Simon

** The GMC repair market serving San Simon, AZ, is characterized by its rural nature and limited competition within the immediate area. Residents typically have three tiers of options: 1. **Local Generalist (San Simon Truck Stop):** Ideal for emergency repairs, basic maintenance, and services related to the robust chassis and drivetrain of HD trucks. Pricing is competitive but focused on core mechanical work. 2. **Authorized Dealer (Willcox Chevrolet Buick GMC):** Offers the highest level of brand-specific expertise, particularly for complex electronics and proprietary systems. This comes with dealership-level labor rates and parts pricing, representing the premium option for guaranteed OEM-quality service. 3. **Independent Specialists (in surrounding towns like Douglas):** Provide a strong balance of expertise and value. They are best suited for owners of older models out of warranty or those seeking a trusted relationship with a local mechanic for all non-warranty needs. Overall, while choices within the city limits are sparse, the surrounding region offers a healthy mix of service providers capable of meeting the specialized needs of GMC owners, from Duramax diesel work to Denali luxury feature repair. The average quality is good, with a few standout, highly-rated shops within a 30-50 mile radius.

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 San Simon regulations and climate