Tustin GMC commercial vehicle department in Tustin, CA.

About Tustin Buick GMC Commercial

Welcome to the commercial department at Tustin Buick GMC. Located centrally in Tustin, CA, we are a team of locals who understand that in Orange County, business moves fast. We are here to make sure your fleet keeps up. Whether you are a general contractor, an electrician, or a luxury transport provider, we work hard to be the partner you can rely on for your vehicle requirements.

Work-Ready GMC Inventory

We maintain a stocked inventory of GMC commercial vehicles designed to go straight to the job site, including:

Service & Parts That Respect Your Time

Our commercial service and parts department operates with urgency. We have technicians who specialize in GMC commercial systems, ensuring diagnostics and repairs are done correctly. We use genuine parts to keep your warranty intact and your vehicle running smoothly on California roads.

Commercial Financing Made Simple

Our commercial financing team understands lines of credit, fleet structuring, and business leases. We sit down with you to look at the numbers and find a funding solution that makes sense for your budget, stripping away the complexity so you can get back to work.

Sales Hours
Mon-Friday 9:00am - 9:00pm
Saturday 9:00am - 9:00pm
Sunday 10:00am - 8:00pm
Fleet Sales Hours
Mon-Friday 9:00am - 5:00pm
Saturday Closed
Sunday Closed
Service Hours
Mon-Friday 7:00am - 6:00pm
Saturday 8:00am - 3:00pm
Sunday Closed

Meet the Faces at Tustin GMC:

Michael Cross

Michael Cross
Commercial Fleet Sales Director

Michael Cross brings nearly two decades of automotive industry experience to his role as Fleet Director at Tustin Buick GMC, combining dealership leadership with sophisticated fleet strategy development. Known for his analytical approach to fleet management, Michael is committed to delivering best-in-class service and solutions that help your business succeed.

Ryan Gestwicki

Ryan Gestwicki
Commercial Fleet Sales Manager

Ryan Gestwicki is an automotive and commercial fleet industry veteran with 15+ years of experience. In his role as Commercial Sales Manager at Tustin Buick GMC; he focuses on serving municipalities, local small businesses and national corporations. Known for bridging strategy with the unique needs of business and government clients, Ryan is dedicated to delivering tailored fleet solutions while building long-term partner relationships.

Visit Us!

VIEW INVENTORY BY BODY TYPE