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

*Offer valid from September 3, 2024 to September 30, 2024 at participating Chevrolet, Buick, GMC, and Cadillac Certified Service dealers. Customers who receive a no-charge brakes inspection during the offer period will receive a coupon for an instant discount of up to $120 (before tax) on new GM Genuine Parts Brake Pads ($20/axle) and Rotors ($20/wheel), or up to $60 (before tax) on new ACDelco® Brake Pads ($10/axle) and Rotors ($10/wheel). Coupons must be redeemed during the offer period and must be presented at the time of appointment. Customers applying instant discount to purchase of brake pads and/or rotors must have the brake pads and/or rotors installed by the same dealer who completed the brakes inspection; discount can only be applied toward brake pads and/or rotors installed on the same vehicle on which the no-charge brake inspection was completed. Offer available to retail customers only. GM Canada reserves the right to cancel, modify or amend the offer without notice. Conditions and limitations apply. See dealer for details. **Buy the following aftermarket brake brands: ACDelco Gold, ACDelco Silver, ACDelco Professional or ACDelco Advantage and if you find a better price on similar aftermarket brake brands within 30 days of the purchase, we’ll refund the difference. Requires valid ad, written estimate or Internet quote for select (Raybestos Professional, Wagner ThermoQuiet, Bendix, Satisfied Brakes, Raybestos Service Grade, Monroe/Certified, CarQuest Red, NAPA TruStop, Midas, Fountain Tire, KalTire, Centric, Wagner QuickStop) aftermarket brake pads, shoes, rotors or drums from a local competing retailer and installer located within 80 km of the dealer required during offer period for price match. Offer available to retail customers only at participating Canadian Chevrolet Buick GMC Cadillac dealers. Offer valid on brake part (pads/shoes/rotors/drums) price only; cost of installation/labour not included in price guarantee from January 1, 2024 to December 31, 2024. GM Canada reserves the right to cancel, modify or amend the offer without notice. Conditions and limitations apply. May not be combined with other offers and programs.
91Offer valid from September 3 to September 30, 2024 at participating Chevrolet, Buick, GMC, and Cadillac Certified Service dealerships. Customers who book their service appointment online through the Certified Service online service scheduling tool are eligible to receive 3 months of OnStar OnStar Connected Vehicle Plan or 3 months of SiriusXM. Offer may not be combined with select Dealer-specific incentives or promotions. Only customers with 2015+ MY vehicles are able to receive the OnStar Connected Vehicle Plan. GM Canada reserves the right to cancel, modify or amend the offer without notice. See dealer for details and for any issues with claiming your no-charge subscriptions, contact [email protected]. 1 For OnStar: Offer valid from September 3, 2024 to September 30, 2024 at participating Chevrolet, Buick, GMC, and Cadillac Certified Service dealerships. Eligible customers with a properly equipped 2015MY vehicle or newer will receive 3 months of OnStar Connected Vehicle Plan. OnStar Connected Vehicle Plan does not include emergency or security services. Service varies with conditions and locations. Data plans are provided by a select third-party telecommunication provider according to their terms and conditions. In-Vehicle App functionality and feature availability vary with vehicle equipment and trim level. Data connection may be required, and data charges may apply. Requires an active service plan and electrical system. Terms and limitations apply. Offers available only on GM vehicles when properly equipped. Offer available to retail customers only. See dealer for details and for any issues with claiming your no-charge subscriptions, contact [email protected]. 2 For SiriusXM: Customers who currently subscribe to SiriusXM and/or have had a SiriusXM trial within the last 12-months are not eligible for the free 3-month trial to SiriusXM’s Platinum Plan. Customers who are ineligible for the 3-month Platinum Plan trial will receive the All Access (App Only) plan for $0.00 for the first 3 months (see All Access (App Only) Offer Details below). Platinum Offer Details: Eligible customers will receive a free 3-month trial to SiriusXM’s Platinum Plan. Your service will automatically stop at the end of your trial subscription. If you do not wish to enjoy your trial subscription or if you do not agree to our Customer Agreement, you can cancel it by calling the number below. If you decide to continue service after your trial, the subscription plan you choose will automatically continue for an indeterminate term and you will be charged according to your chosen payment plan and method at the then-current rate (Platinum Plan is $28.80 and Music & Entertainment is $22.80), unless and until you cancel. Taxes extra. There are no refunds except as provided in our Customer Agreement. Excluding Quebec and Newfoundland, cancel at least 24 hours prior to renewal; cancellation is effective at the end of your current billing period. Please see our Customer Agreement for complete terms and how to cancel, which includes calling us at 1-888-539-7474. This offer cannot be combined with any other and may be modified or terminated at any time. All rates, content and features vary by subscription plan. We collect and use personal information according to our Privacy Policy. © 2024 Sirius XM Canada Inc. “SiriusXM”, the SiriusXM logo, channel names and logos are trademarks of Sirius XM Radio Inc. and are used under license. All other trademarks, service marks, images and logos are property of their respective owners and are displayed in this publication with permission. All rights reserved. All Access (App Only) Offer Details: Subscribe to the All Access (App Only) plan and get your first 3 months for $0.00. A credit card is required for this offer. After your promotional term ends, your plan will automatically continue every month and you will be charged at then-current rates (currently $9.99/month), for an indeterminate term and services will continue unless and until you cancel. Taxes apply. There are no refunds except as provided in our Customer Agreement. Excluding Quebec and Newfoundland, cancel at least 24 hours prior to renewal; cancellation is effective at the end of your current billing period. Please see our Customer Agreement for complete terms and how to cancel, which includes online methods or calling us at 1-888-539-7474. This offer cannot be combined with any other and may be modified or terminated at any time. All rates, content and features are subject to change. Streaming service may not be available unless data is enabled; data charges may apply and are charged separately. Contact your wireless service provider for details. You can only listen on one streaming device at a time per subscription. We collect and use personal information according to our Privacy Policy.
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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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.