Welcome To Tri-State Auto Diagnosics

You rely on your vehicle every day to safely get your family everywhere you need to go.  At Tri-State Auto Diagnostics, we will not give you the runaround.  Our ASE Certified Technicians have the skills and innovative tools necessary to get your vehicle back on the road quickly without any unnecessary repairs or costs.  

Tri-State Auto Diagnostics has been in business since 1997.  You can find us at 5200 Old Highway Rd, on the west end of Dubuque, Iowa, just off of Dodge St.  We operate a state-of-the-art automotive repair shop with expertise in all makes and models of cars and trucks.  We are an AC Delco service center with ASE Certified Technicians.

Tri-State Auto Diagnostics is an AC Delco Service Center


We Provide Fast, Affordable Auto Repairs and Auto Diagnostics.
Contact Us For A Free Estimate

Our Full Service Vehicle Repair Service Will Get You Back on the Road and on Your Way to Where You Need to be.