Transmission Maintenance & Service in Sarnia, Ontario

Keep your car on the road with preventative transmission maintenance

Just as you have other parts of your car serviced, your transmission needs maintenance to ensure a long life and avoid transmission problems. Our transmission service consists of a complete diagnosis of your transmission’s performance and general operation. Several of these procedures will be performed twice; once by the centre manager, and then again by a technician. This method allows double checking of your transmission’s key systems, while providing you with added assurance.

Multi-Check Inspection in Sarnia, Ontario

The Mister Transmission Road Test and Multi-Check Inspection includes:

  • Visual Inspection
  • Fluid Check (on models with dipsticks)
  • Road Test
  • On Board Diagnostics (OBD) Computer Scan – read codes

Learn more about the Multi-Check Inspection:

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Transmission Fluid Check

The fluid check indicates the first sign of possible wear and damage. A transmission in good condition will have a clear red fluid. If your fluid is discoloured or has unpleasant odour, this may be an indication of internal wear and damage which is occurring as you drive your vehicle. An unpleasant odour and discoloration, in combination with other symptoms, may require an internal inspection of your transmission.

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Road Test

The road test consists of two segments: a stationary test and driving test, which together comprise the most detailed portion of the Multi-Check. Every position of your transmission will be thoroughly tested for slipping, noises, harsh, soft or erratic shifting, as well as late or early shift patterns.

What’s Next After Your Free Road Test and Multi Check?

*Additional Charges may apply*

Why Choose Us

Lift Inspection

During the lift inspection our technician will check the following:

  • Neutral Switch
  • Engine RPM
  • Throttle Linkage
  • Modulators
  • Transmission Mounts
  • U-Joints
  • Fluid Retention
  • Electronic Controls

This will determine if a minor adjustment will correct the problem of your transmission.

Pan Examination

In all pans, there are some metal particles and friction material present. However, an excessive amount indicates internal wear and damage. If that is the case, and it is determined that a minor adjustment will not correct the problem, we will recommend Mister Transmission’s inspection service. This service will determine exactly what is wrong inside your transmission.

Inspection Service

Your transmission is one of the most complex systems in your vehicle, with hundreds of precision parts operating together. Determining the problem and providing a price sometimes requires removing and even dismantling your transmission. Not only will we be able to determine the problem, we’ll also be able to determine the cause to prevent any future problems. Some of these services will require additional charges, which we will request you authorization prior to the work being performed.

Transmission Fluid Change Service

We also offer a transmission fluid change service to help ensure your transmission continues to operate at its best for years to come.

Learn More About Maintaining Your Transmission

Talk to a Customer Service Representative

Ask questions or address any concerns by calling 1-800-373-8432 or e-mail customerservice@mistertransmission.com, or find a Mister Transmission location near you.

Frequently Asked Questions

  • What is included in transmission maintenance service? +

    Mister Transmission Sarnia provides complete transmission maintenance including fluid checks, filter inspection, road testing, and multi-point diagnostics. This service helps identify early issues, improve performance, and extend the lifespan of your transmission while reducing the risk of costly future repairs.

  • How often should I get transmission maintenance? +

    Most vehicles should have transmission maintenance every 30,000 to 60,000 km, depending on driving conditions and manufacturer guidelines. Regular servicing at Mister Transmission Sarnia ensures optimal performance, prevents overheating, and helps detect potential problems before they become serious.

  • Why is transmission fluid service important? +

    Transmission fluid lubricates, cools, and protects internal components. Over time, it breaks down and loses effectiveness. Mister Transmission Sarnia ensures proper fluid levels and quality, helping prevent wear, overheating, and costly transmission damage.

  • What are signs I need transmission maintenance? +

    Common signs include delayed shifting, unusual noises, fluid leaks, or reduced performance. If you notice any of these issues, Mister Transmission Sarnia can perform a detailed inspection to diagnose and resolve problems before they worsen.

  • Can transmission maintenance prevent major repairs? +

    Yes, regular maintenance helps identify minor issues early and prevents them from developing into major transmission failures. Mister Transmission Sarnia’s preventative service approach saves time, reduces costs, and improves long-term vehicle reliability.

View All FAQs
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Transmission Technology

At Mister Transmission we have access to leading-edge diagnostic equipment, enabling us to offer you the fastest and most accurate findings about what’s going on inside your vehicle’s transmission.

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Transmission Maintenance & Service

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Customer Reviews
Bob was great in getting...
Glen Leach
Bob was great in getting me in the next day. Fantastic quick action, and more than friendly. Thank you Sir.
Date: June 15, 2026
Website: Google
Great service reliable and honest....
Dan McLaughlin
Great service reliable and honest. Will be my go to from now on.
Date: April 24, 2026
Website: Google
Friendly guys who do the...
Ron Plaskett
Friendly guys who do the job correctly with no upselling. I strongly recommend this shop for your transmission needs
Date: March 5, 2026
Website: Google
Great customer service @ the...
Tony Jillson
Great customer service @ the sarnia location
Date: February 23, 2026
Website: Google
Great experience. Honnest work ....
A D
Great experience. Honnest work . Makes u feel at home . No missed information. Great work . Love mister transmission. Definitly my new shop.
Date: February 4, 2026
Website: Google
great shop - great employees...
Penny Barr
great shop - great employees and manager! So easy to deal with!
Date: January 9, 2026
Website: Google
Their great, best around
Greg Murphy
Their great, best around
Date: December 17, 2025
Website: Google
Excellent service. Great communication.
Nathalie Drew
Excellent service. Great communication.
Date: December 15, 2025
Website: Google
Fast, friendly professional
Tim Dagg
Fast, friendly professional
Date: December 14, 2025
Website: Google
My experience with Mr Transmission...
John Schrader
My experience with Mr Transmission here in Sarnia was very informative, from speaking with the owner he explained what needed to be done explained the process and the cost. I will recommend this business to anyone who asks! Thanks again!
Date: November 22, 2025
Website: Google
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