Open Today! Sales: 9am-6pmService: 8am-5pm

Buick, GMC Buick, GMC

Commercial Vehicles

We get it. When it comes to your fleet, you can’t afford mistakes. You need the right vehicles, customized to your specific business needs. You need a dealer you can count on and you need every dollar to count.

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GMC Savannah with commercial storage system
Dealership Exterior with Employees

Welcome to Mills Motors Buick GMC

Your vehicle is one of the most important things you own. It gets you to work, gets your kids to school, helps you run errands around town, and lets you take to the open road. For something so essential to everything you do, you want to rely on the very best dealership in the area for sales, financing, service, and parts. That dealership is Mills Motors Buick GMC.

The first thing people notice when they visit us in person is the size of our inventory. We carry the full lineup of new vehicles from Buick and GMC. There are many options for every driver and every budget. We also have a huge inventory of pre-owned vehicles from other major automakers, which makes it easy to comparison shop. When the right vehicle jumps out at you, our expert financing department is here to get you approved for the loan you need quickly at a competitive rate.

Once you’re on the road, trust our professional service department to handle all your long-term maintenance and repair needs. You car is in good hands with our team, and we will do everything possible to provide superior work faster and at a lower price. You can also take advantage of our parts department to find official parts and accessories for purchase for all Buick and GMC vehicles.

Car shoppers from far and wide choose to work with us a because of our total commitment to customer service. We will do whatever it takes to ensure your experience accommodates all your needs, saves you money, respects your time, and leaves you fully satisfied. Visit us in person Monday through Saturday at 240 Bond Street East in Oshawa, and contact us if we can answer any of your questions.


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Our Reviews

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Google Jun 7, 2024

I had bought a used corvette stingray from another private dealer and I wanted to make sure that my car was in good health and that I did not make a bad decision or buy someone else's problem they went above and beyond on my car and could say I confindely can recommend them to anyone looking keep there car in good shape will be going in again for sure

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Google May 29, 2024

Great service while dealing with recalls on my equinox!

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Google May 3, 2024

Mr T. Sills here.. I recently had work done on my car from Cliff Mills. They did an absolutely stand-up job beyond happy five star review for you guys!

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Google Apr 21, 2024

Amazing amazing amazing! Purchasing a car was so smooth and easy! Thank you to Ryan and Jim for all of their help. I never felt pressured and their transparency was so appreciated! I highly recommend these guys if you are looking for a new car! Thanks again guys!

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Google Mar 31, 2024

Best service. My friend Jim always makes sure the transaction is smooth. The customer service team made sure that the car maintenance is proper. They value the customers and best in the game…

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Google Mar 17, 2024

Great experience all around!

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Google Feb 2, 2024

Wow, these guys know there stuff. Brought my truck back to life , fixed a problem that a lot of mechanics couldn't. Very impressed. Back to driving my truck safely .Thank-you an your team. Ken Simmons 😁

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DealerRater Jan 20, 2023

Incredible service! I took my car in there and the process was smooth and efficient. Jeremy was great to deal with. Thanks again.

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We are conveniently located at 240 Bond Street, Oshawa, ON L1G 1B5 (At the corner of Ritson and Bond, across from Costco)

Buy From Home Value Your Trade!
Buy From Home Value Your Trade!

Main: (905) 436 1500

Service: (905) 432 7333

Parts: (905) 723 8105

Collision Centre:

Mills Motors Buick GMC 43.9013761, -78.8554195.