About Us

Thelen Auto Group is a family-owned and operated company, conveniently located in Bay City, Michigan. In fact, we are one of the oldest family car dealership groups in the Mid-Michigan area!  Serving the Great Lakes Bay Region, including Saginaw and Midland, since 1977, we are now in the third generation of Thelen family members proudly ensuring an excellent customer experience at the Thelen auto dealership group.

The Thelen family insists on honesty, integrity and strong customer service before, during, and after a sale to ensure customers in Bay City have a positive experience every time. New vehicle models or quality, used cars, trucks, and SUVs, you name it and we have it! At Thelen Auto Group we have a great selection of vehicles to choose from, including sporty coupes, spacious sedans, tough trucks, family-ready minivans and versatile SUVs. Looking for a vehicle that is more environmentally friendly?  Ask us about our hybird and EV offerings.  If we don't have the vehicle you are looking for at our Bay City location, we will find it for you! We also offer state-of-the-art Service Departments, Detailing Center, and Body Shop, as well as genuine OEM Parts and Accessories departments for our dealership brands.

Unlike other car dealerships, we provide superior service for our customers and our entire community. We believe in giving back to the community we live in, so Thelen Auto Group is a proud sponsor of the following local organizations and charities:

  • American Cancer Society
  • Bay Area Family YMCA
  • Bay City Fireworks Festival
  • Cool City Classic Car Show
  • Bijou Orchestra
  • Delta College
  • Northwood University
  • Salvation Army
  • Bay City State Theatre
  • Toys for Tots
  • And many more!

We pride ourselves on being unlike any other car dealership in Michigan. Customers are always invited to speak to our owner at any time, for any reason. If you have questions, comments, or concerns about your experience with Thelen Auto Group, please do not hesitate to contact us. Our personal guarantee is that you'll feel like family when you Think Thelen in Bay City, so call us today!


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