GM Certified Service in Thornhill, ON


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*Includes in-stock Winter Tires or Winter Tire packages only. Tires will be stored until Dec. 31st 2022; regular Tire Storage price is $99.95 + tax. Offer expires May 31st, 2022.
Purchase a set of 4 Winter Tires NOW, and we’ll store them for FREE until the Fall!*
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4 Your local dealer will match the competition's prices. If you purchase one of the aftermarket tire brands listed below and later find a better price on a qualifying brand within 30 days of the purchase, we’ll refund the difference. Tire Brands BFGOODRICH, BRIDGESTONE, CONTINENTAL, DUNLOP, FIRESTONE, GENERAL, GOODYEAR, HANKOOK, KELLY, MICHELIN, PIRELLI, UNIROYAL, KUMHO. The price match applies to the brands listed above. Tire brands not carried by your dealer will not be guaranteed for a price match. Competitive Prices: The competitive price you find must be in a valid ad, written estimate or Internet quote for identical, new tires. The tires must be an exact match in brand, tire line, size, load rating and speed rating to be eligible for the price match guarantee. All competitive quotes (including internet quotes) must come from a local competing tire retailer and installer (with a physical location within 100km of your participating Certified Service dealership). The competitive price must be valid within 30 days of your purchase of any of the tire brands listed above. Service and Installation: The price match guarantee is only valid on the tire price and does not include installation/labour. Offer available to retail customers only at participating Canadian Chevrolet, Buick, GMC and Cadillac dealers. Offer valid from January 1st, 2022 to December 31st, 2022. 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. 47Eligible Cardholders of a Scotiabank® GM®* Visa* Credit Card Account (the “Account”) are eligible for $150 instant discount on select tires purchased at participating Chevrolet, Buick, GMC and Cadillac dealerships in Canada, up to a maximum of two (2) sets of tires per eligible VIN, per eligible Cardholder, for the promotional period. Offer is valid from March 1st, 2022 to May 31st, 2022 only on eligible tire purchases charged to an eligible Cardholder’s Account. Only GM National Account tires with a GM Part Number are eligible for the offer (see participating dealers for details). This offer is stackable with the instant tire manufacturer rebates. This offer may not be redeemed for cash and may not be combined with certain other consumer incentives available on Chevrolet, Buick, GMC and Cadillac vehicles and/or their associated parts. Conditions and limitations apply, see your participating dealer for details. This offer is non-transferable. This offer may be changed, cancelled or extended at any time without notice. The Bank of Nova Scotia is not responsible for any products or services purchased at Certified Service dealerships under this offer. Dealer may sell for less. **Instant tire manufacturer rebates are available when you purchase 4 identical eligible tires. Rebates can be combined with Scotiabank® GM®* Visa* Card $150 instant rebate but cannot be combined with tire manufacturer mail-in rebates. Instant rebates available: Up to $100 from Kumho, $100 from Bridgestone, $70 from Pirelli, $60 from Firestone, $55 from Continental, $50 from Michelin, $40 from BF Goodrich, $40 from Goodyear, $40 from Dunlop, $30 from Uniroyal, $30 from General tire. Offer is valid from March 1st, 2022, to May 31st, 2022. This offer is non-transferable. Conditions and limitations apply, see participating dealers for details. No rain checks available. This offer may be changed, cancelled or extended at any time without notice. ®Registered trademark of The Bank of Nova Scotia.*Registered trademark of Visa International Service Association / Licensed User. ®*Registered trademark of General Motors LLC. The Bank of Nova Scotia is an authorized user of General Motors LLC marks.
2022 Spring Tire Campaign
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Offer applies to alignment check only. Regular rate applies if alignment needs to be corrected/adjusted. Offer valid from May 1, 2022, to June 30, 2022, at participating GM Canada Certified Service dealers. Offer available to retail customers only. 3500 trucks, dual rear wheel trucks and Chevrolet Corvette models are excluded from this promotion. GM Canada reserves the right to cancel, modify or amend the offer without notice. Conditions and limitations apply. See a participating dealer for details.
Alignment Offer

Roy Foss Thornhill Service Centre

Get the best possible service from the experts! Certified Technicians know your vehicle inside and out and are specifically trained to service Chevrolet, Buick, GMC and Cadillac vehicles using a wide variety of parts to suit any budget from ACDelco to original equipment. Request a quote or schedule a service appointment today to receive “Expert Service at Competitive Prices”.

Roy Foss Thornhill offers express service for everyday maintenance such as oil changes, battery replacement, and new wiper blades. We also offer shuttles to home or work, as well as updated, comfortable waiting lounges and the opportunity to check out the latest vehicles. If you’re looking for competitive prices, convenience, and expertise in Thornhill, our dealership is here for you and your repairs. Schedule your service appointment today at Roy Foss Thornhill!

SERVICE OFFERS & PRICING

You expect an unmatched level of excellence from your driving experience. Why expect less from your service experience? Your Certified Service experts at Roy Foss Thornhill are trained to understand exactly what your Buick, Chevrolet, GMC, Cadillac needs.

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Open Today! Sales: 9am-6pm Call us at: (888) 630-4944

Dealership Info

Phone Numbers:Sales Hours:Holiday Hours
  • Saturday May 21stClosed
  • Monday May 23rdClosed
Regular Hours
  • Mon - Fri9:00 AM - 6:00 PM
  • Sat9:00 AM - 5:00 PM
  • SunClosed
Service Hours:Holiday Hours
  • Monday May 23rdClosed
Regular Hours
  • Mon - Fri7:30 AM - 6:00 PM
  • Sat8:00 AM - 1:00 PM
    (Express Service Only)
  • SunClosed
Parts Hours:Holiday Hours
  • Monday May 23rdClosed
Regular Hours
  • Mon - Fri8:00 AM - 5:00 PM
  • Sat - SunClosed

Did you know?

The three (3) GM approved levels of service replacement parts come with varying levels of warranty coverage when installed at Roy Foss

ACDelco Advantage Replacement Parts Provide aftermarket approved design at a budget price

Includes a 12-month parts and labour warranty**
GM Original Equipment (OE) Maintenance and Repair Parts are the same parts that were installed on the vehicle when it was built

OE parts come with a 36-month parts and labour warranty**
ACDelco Professional Line feature our best aftermarket grade of replacement parts

Includes 24-month parts and labour warranty**

Service & Parts Specials

Chevrolet Bolt Recall Banner - Click to learn more about the recall at this link

Service & Maintenance Items

A row of tires

TIRES

Tires affect just how well you grip the road. Our Tire Finder tool makes it quick and easy to find tires for any vehicle. Click the drop-down menus to select your vehicle information and navigate your search. Once you’ve selected your new tires, the Chevrolet, Buick, GMC Certified Service expert technicians can handle all of your tire needs at your scheduled appointment.

Technician changing oil

OIL

You depend on your vehicle to help drive your achievements. Your engine depends on the oil that flows through it to help prolong its life. Changing it is important, routine maintenance that your Chevrolet, Buick, GMC Certified Service experts perform with quality oil and expert knowledge of your vehicle.

Technician changing brakes

BRAKES

The ability to move ahead effectively requires the ability to stop efficiently. The same is true on the road-exceptional performance requires excellent braking. When you need brake service, your Chevrolet, Buick, GMC Certified Service expert technicians at Roy Foss Chevrolet Buick GMC can recommend quality new brakes. So you can utilize every stop and every turn to further your pursuit.

Assorted parts

QUALITY PARTS

Your Chevrolet, Buick, GMC is more than a vehicle-it’s an innovatively designed, technologically advanced machine. Using high-quality auto parts that are specifically crafted and tested for your Chevrolet, Buick, GMC will help keep it running as beautifully as the day you drove it home.


THORNHILL CADILLAC, BUICK, CHEVROLET, AND GMC SERVICE AND REPAIR CENTRE

Get the best possible facility from the experts. Our certified technicians know your vehicle inside and out and are specifically trained to offer Chevrolet, Buick, Cadillac and GMC vehicle service in Thornhill. We have a wide variety of parts to suit any budget from ACDelco to original equipment. Our Roy Foss Thornhill drivers can also request a quote or schedule a service appointment today. We will make sure to offer optimum repair at great values. We also offer everyday maintenance such as oil changes, battery replacements, and wiper blades. We also provide shuttles to home or work, as well as updated, comfortable waiting lounges and the opportunity to check out the latest vehicles. Give us a call at 905-886-2009 or drop by Roy Foss Thornhill and get your Cadillac, Buick, Chevrolet and GMC vehicles serviced in Thornhill today.

Roy Foss Thornhill CERTIFIED SERVICE

You set your sights higher. To Buick, Chevrolet, GMC, Cadillac Certified Service, that prospect isn’t intimidating; it’s inspiring. You can rely on our technicians to possess expert knowledge of your vehicle, from its detailed stitching to the curves of its frame. The distinctive level of care provided can be found at Roy Foss Thornhill.

Roy Foss Thornhill is located at: 7200 Yonge Street • Thornhill, ON L4J 1V8
Roy Foss Thornhill 43.802789, -79.422113.