Certified Service

GM Certified Service in Durham Region

Today’s car repair customer won’t tolerate anything short of the best. To us, that means expertise, professionalism, accurate repairs, and a passion for customer service. At the Ontario Motor Sales GM Certified Service Centre, we provide just that, striving for excellence in car repair and maintenance for over 90 years.

Ready to get started? Give our Certified Service Centre a call, book an appointment, or shoot us a message online!

Discover service offers exclusive to our valued customers. Rest assured, only Certified Service experts will work on your vehicle.

Whether you're looking to swap tires, get oil changed or a full car detailing—you can book it all online.


Find the right tires for you using our online tire store. Price shopping? Go ahead—check us last. We'll match the lowest price, guaranteed.

Our Certified Service experts are ready to answer all of your most-pressing service inquiries. Send us a question.


Looking for a specific part or accessory for your vehicle? Visit our parts department. The team will be happy to help!

Are you driving a recalled GM vehicle? Read up on the most recent recall details here.


Curious about some of our Services? This page takes you through some of our services and explains how they are performed! Take a look prior to making your next appointment.


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Hours of Operation

  • Service



  • Monday - Wednesday

    8:00am - 6:00pm

  • Thursday

    8:00am - 7:00pm

  • Friday

    8:00am - 6:00pm

  • Saturday

    8:00am - 1:00pm

  • Sunday