Automatic Transmission Service & Repair Port Union, ON

The transmission is the most complicated component of your vehicle, and with the technology being used in today’s vehicles evolving every year, transmission repair requires more skill and knowledge than ever before. The automatic transmission used in today’s vehicles includes a combination of hydraulics and computer-controlled components. At Mister Transmission, we have state of the art diagnostic technology to determine exactly what is going on with your vehicle, and the most cost-effective solution to repair it.

Automatic Transmission Common Problems 

There are many warning signs that could indicate you have a problem with your transmission, including:

  • Transmission slipping or rough shifts
  • Fluid leaks
  • Burning smell
  • Contaminated or low transmission fluid
  • Overheating
  • Check Engine Light On

My vehicle is showing at least one of these signs, what should I do?

If you suspect your automatic transmission is not performing as it should be, bring it into your local Mister Transmission. We always start with our FREE Road Test and Multi Check Inspection to identify any problems with your transmission and provide you with different repair options. The key to minimizing repair costs is to get them checked as soon as you notice them, and you most likely only need a minor repair or service.

Featured Services
Transmission Repair

The evolution of transmissions has made these machines and systems increasingly complex. When transmission repairs are required, determining the cause and cure for what ails can be tricky.

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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

Just as you have other parts of your car serviced, your transmission needs maintenance to ensure a long life and avoid transmission problems.

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Customer Reviews
Amazing service and transparent Gus...
Mike Lee
Amazing service and transparent Gus was very helpful!
Date: June 5, 2026
Website: Google
Journey working great THANKS RAY...
Mario Genua
Journey working great THANKS RAY AND GUS
Date: June 1, 2026
Website: Google
Create me a humble review...
Venisa Esposo
Create me a humble review for Mister Transmission, we had our Honda Odyssey looked at and repaired here and it was very good
Date: May 29, 2026
Website: Google
I have dealt with Mr....
Jewel Mom
I have dealt with Mr. Transmission twice now, first for a transmission repair and then for some engine issues that I originally suspected of being Transmission related. Both times I received excellent service. Gus takes the time to explain the issue(s) and best options. I would recommend Scarborough Mr Transmission to a friend.
Date: April 30, 2026
Website: Google
Great service and fair pricing....
Nimal Sabuwala
Great service and fair pricing. Gus was extremely helpful and informative. Will definitely be coming back.
Date: April 23, 2026
Website: Google
I had a great experience...
Sushil JK
I had a great experience getting my TCM and control arm replaced here recently. Even though the repair involved some cost, the team took the time to clearly explain everything in detail before proceeding, which I really appreciated. They thoroughly diagnosed the issues, dug into every possible cause, and made the necessary fixes with care and precision.After the repairs, the difference in driving is noticeable the car feels much safer, smoother, and more reliable. It’s clear they take pride in their work and focus on doing the job right rather than rushing through it. Highly recommend this place if you want honest advice and quality service.
Date: April 23, 2026
Website: Google
Excellent Service!
Tristan Esguerra
Excellent Service!
Date: April 21, 2026
Website: Google
Great experience! They changed my...
Hamid Karimi
Great experience! They changed my transmission fluid and filter professionally and explained everything clearly. The staff were honest, respectful, and didn’t rush the job. I’m very satisfied and highly recommend them.
Date: April 21, 2026
Website: Google
I had a serious issue...
Christian Karimlou
I had a serious issue with my transmission on my 2017 Civic and brought it here. The team at Mister Transmission did an amazing job diagnosing and fixing everything properly. They explained the issue clearly, kept me updated, and the customer service was top tier from start to finish.They replaced everything needed and got my car running like new again. Was charged for a very fair price for the amount of work that was done.Honest, professional, and reliable I highly recommend them if you’re dealing with any transmission problems.
Date: April 17, 2026
Website: Google
Gus changed my transmission fluid...
Rakshit Vedia
Gus changed my transmission fluid and my vehicle goes vroom vroom.. thank you!
Date: April 15, 2026
Website: Google
Mister Transmission Blogs
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