Top 3 GMC Repair Shops in Seneca

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

#1

Mobridge Auto & Truck Repair

4.6
(120 reviews)
Verified

A full-service automotive and light truck shop known for its deep roots in the community and broad technical capabilities. They are a go-to for complex diagnostics on modern engines, including EcoTec and Duramax, and are well-regarded for their honest assessments and quality workmanship on transmissions and 4WD systems.

112 Main St, Mobridge, SD 57601 (Approx. 25 miles from Seneca)

Specialties & Features

EcoTec engine diagnostics
Allison transmission service
4WD system repair

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes
#2

Aberdeen Diesel & Auto

4.8
(95 reviews)
Verified

This is the premier regional specialist for diesel and heavy-duty truck service. Their technicians have specific training and extensive experience with the Duramax diesel platform. They are the top recommendation for owners of GMC HD trucks (2500/3500) requiring complex diesel engine work, towing system diagnostics, and heavy-duty suspension upgrades or repairs.

815 6th Ave SE, Aberdeen, SD 57401 (Approx. 60 miles from Seneca)

Specialties & Features

Duramax diesel service
Heavy-duty truck suspension
Towing package maintenance

Business Information

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

Riddle's Auto & Truck Service

4.4
(180 reviews)
Verified

A long-standing, family-owned business with a strong reputation for reliability. While not a dedicated diesel specialist, they offer comprehensive general repair services for GM vehicles. They are a solid choice for routine maintenance, electronic diagnostics for Denali features, transmission services, and general repairs on GM trucks and SUVs.

1015 6th Ave SW, Aberdeen, SD 57401 (Approx. 60 miles from Seneca)

Specialties & Features

General GMC service
Transmission repair
Denali electronics diagnostics

Business Information

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

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

** The GMC repair market for Seneca residents is characterized by a need to travel to regional hubs for specialized service. There are no dedicated GMC or diesel-specific repair shops within Seneca itself. The local market consists of general mechanics capable of handling basic maintenance, forcing owners of complex vehicles (like Duramax Denalis) to seek expertise in Mobridge or Aberdeen. The competition level for true specialists is moderate, with a few standout shops in the region dominating the market for diesel and transmission work. The average quality of service is high among the top-tier providers, as they rely on reputation and word-of-mouth in a rural setting. Pricing is generally competitive and reflective of the specialized knowledge required, with diesel and transmission services commanding a premium over standard automotive repair. Customers prioritize proven expertise and reliability over price sensitivity for these critical vehicle systems.

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 Seneca regulations and climate