Mills Motors Buick GMC
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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.
Services
For more than 70 years, Mills Motors Buick GMC has been the greater Oshawa area's dealership of choice. Originally founded as Cliff Mills Motors Limited in 1938, the very first car sold off the lot was a Willys Coupe for the price of $139! A lot has changed since then, but much has stayed the same.
When it's time for vehicle service and maintenance, head to Mills Motors to see our Certified Red Seal, Grand Master and Master expert technicians. Nobody knows your vehicle better. From oil changes to engine replacements, our automotive professionals are trained to handle your vehicle's needs.

We are an accredited facility that uses the latest and most advanced diagnostic equipment available to make sure that your Buick and GMC car, truck and SUV's are performing at their best.With monthly specials the service at Mills just gets better and better! And our 65 years young customers save on parts and labour every Thursday with our Seniors Discount Program.
At Mills Motors Buick GMC, we believe in making car shopping and car buying as easy as possible. One way we make that goal achievable for our customers is by offering a hassle-free way to sell their used cars. Not everyone has the time or desire to become a private party seller - and that's where Mills Motors Buick GMC comes in.
We can maintain our new normal of social distancing AND make it possible for our customers to shop for and buy a vehicle. We ensure your safety throughout our sales process, offering you the convenience of shopping from your own home. Here's how we do it:. Choose your vehicle from our GMC, Buick, DEMO Models, Custom Lift Trucks, Commercial or Used inventory.
We buy our tires in bulk, which allows us to pass on great savings to you. We regularly check competitor prices to ensure ours are the lowest. If you find a better price on your tires within 30 days of purchase, we'll refund the difference. Your tires are your only points of contact with the road, so it's important to choose the right set for you.
Reviews (10)
Josh Dufour
Josh Dufour
Oct 10, 2021
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I've been wanting to buy a truck for quite a while now, and with the chip shortage, trucks were hard to come by. I spoke with Nick over a year ago and told him exactly what I was looking for. When he finally got the truck I was looking for in stock, it was only a matter of days before delivery! Highly recommend Mills Motors - best vehicle purchasing experience I have had - and I've had a few!
Jackie Houghton
Jackie Houghton
Sep 01, 2021
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I appreciate their professional and courteous customer service. No one likes to have to service their car. Dave, the customer service representative I worked with most recently, went above and beyond to help me have a great experience!
Jeanine Mouland
Jeanine Mouland
Aug 20, 2021
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Always a pleasure dealing with this place, especially Dugal. He's incredibly knowledgable, professional, friendly and reliable. Thanks again, I love my Yukon Denali!
Gilbert Ko
Gilbert Ko
Jul 29, 2021
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Dave at service is awesome!
I dropped off my car for a regular service this AM. I was greeted by Dave, who is very delightful and one can really start your day on bright side.
On my return trip to pickup the vehicle, I met Dave again and strike another conversation that made me felt I was a value customer. Thanks Dave.
Gilbert
Greg Metcalfe
Greg Metcalfe
Jun 21, 2021
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I was looking into upgrading my truck & looked up the reviews for Mills Motors & Allan Clark's name kept popping up so I set up an appointment with him. Before you know it, I had ordered a new truck from Mr. Google. lol
He also kept updating where truck was located & texting pictures of the truck when it arrived which I thought was great.
Zoltan Toth
Zoltan Toth
May 29, 2021
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Just love this place. Very safe and clean place. Very nice staff. Nice GMC Trucks! Made her work in the first hour. Lol
Zoltan Toth
Zoltan Toth
Mar 15, 2021
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Excellent place to buy trucks. Drove 2 hours but got the best deal on my trade and purchase. Nick is is a great sales professional.
Edward Comeau
Edward Comeau
Feb 07, 2021
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Neither Rain, nor Hail, nor Sleet or Snow....
....will prevent my Dealer, the ever-thoughtful MR. ALLAN CLARK from looking after me once again, with another new vehicle offer at unbelievable savings!!
To Mr. CLARK and his Staff at Oshawa’s MILLS MOTORS BUICK GMC LTD....
THANK YOU for the 2021 GMC SIERRA!!
I’ll be back once again!!!!
After 23 years dealing with the same Company for my past 7 vehicles, I can say with absolute confidence....if you are looking to be treated fairly and respectfully with the best opportunities available, CALL MR. ALLAN CLARK!!!
THANK YOU SIR!!!!
Duane Walton
Duane Walton
Sep 24, 2019
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Mills will gladly sell you a Denali 84,000.00$ vehicle, the problem is when you require a little respect from the service department, after spending 7,500.00 in service in one year not including tires, I was told by the service manager to please exit the service area as he opened the door!
- In one year 2 alignments still destroying a new set of tires
- The 1700.00 brake job delaminated and cost another 1000.00 emergency repairs out of province
- After replacing tires, I took the truck to Ontario motor sales, where they efficiently, respectfully, understandably charged me to realign the vehicle
Martin Spoelstra
Martin Spoelstra
Oct 26, 2018
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Bought my new-to-me used vehicle at Mills Motors. The service was outstanding! Randy in the used car office was very helpful and respectful. No pressure sales, purchase was smooth and they gave me a full tank of gas on the way out. Very happy.