Transmission Repair & Service Kanata, Ontario

Pinpointing the exact cause of any transmission problem takes skill, knowledge, and investigation

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. Why? Because transmissions have become remarkably complex and computerized and that presents both advantages and disadvantages. On one hand, transmission performance has become noticeably better in all vehicle makes and models. On the other, the increased complexity and digitization of transmission systems has made repair work a highly technical and complicated affair.


As you can imagine, there are different types of transmission repair jobs and options you can choose from depending on the nature of your vehicle’s breakdown. Understanding what those options are can help you make informed decisions when faced with a choice of transmission repairs to weigh.

A Repair for Every Type of Transmission Malfunction

Some transmission repair work is straightforward and mechanical in nature. Other times, it’s a combination of mechanical and electronic engineering that’s required to get your car back on the road. The most common types of repair work include:

  • Adjustments and in-car repairs. Most minor repairs are simple matters that are done without removing the transmission from the vehicle. If yours is a computer-controlled transmission that is not shifting properly, it is often the result of a computer sending incorrect signals due to a faulty sensor, or the transmission is not reacting to the command because of a bad connection or defective solenoid pack. If a non-computer controlled transmission is shifting too early or too late, it may require an adjustment to the throttle cable. If the vehicle has a vacuum modulator instead of a throttle cable, there is an adjustment that can be made using an adjustment screw in some designs. In vehicles with modulators, however, it is important to ensure there are no vacuum leaks and that the engine is running at peak efficiency.
  • Reseal jobs. A transmission is re-sealed to repair external transmission fluid leaks. If you see spots of red oil on the ground under the car, your transmission may need a re-seal job. To check a transmission for leaks, a technician will put the vehicle on a lift and examine the unit for signs of oil leaks. If a leak is spotted at any of the external seals or gaskets and the transmission otherwise performs well, the technician will most likely recommend that the transmission be re-sealed. Most of the external seals can be replaced while the transmission is still in the car but, if the front seal must be replaced, the transmission must first be removed from the vehicle to gain access to it.
  • Replacing accessible parts. There are a number of parts that are accessible without requiring the removal of the complete transmission. The parts that are accessible, however, vary from transmission to transmission and most transmission repair facilities would hesitate to provide meaningful warranties on external repairs for the simple reason that they cannot see if there are any additional internal problems in the components that are only accessible by transmission removal.
  • Complete overhauls. Also known as “rebuilding a transmission”, a complete overhaul involves the removal and disassembly of the transmission in its entirety. Every part is inspected for wear and damage, then cleaned in a special cleaning solution, or replaced with another part depending on its condition. Parts that have friction surfaces, such as bands and clutches are replaced as are all seals and gaskets. The torque converter is also replaced, usually with a remanufactured one. Technical service bulletins are checked to see if the auto manufacturer recommends any modifications to correct design defects that were discovered after the transmission was built. Automobile manufacturers often make upgrade kits available to transmission shops to resolve these design defects.

Replacing or Overhauling a Transmission

When a transmission requires an overhaul, there are two options that you may have. The first is to remove your existing transmission and overhaul it, then put the rebuilt unit back in your car. The second option is to replace your existing unit with another unit that has already been rebuilt or remanufactured.

A word to the wise: replacing your transmission with a used one may not be your best option. Used transmissions often have questionable histories that could create a whole new set of challenges. New transmissions, meanwhile, are mostly aftermarket transmissions billed as new but are in fact rebuilt transmissions with new parts.

The cost of the repair is always top-of-mind and understandably so. Transmission repairs are usually unexpected (and unwelcome). The cost varies depending on the outcome of our diagnostic testing, and we will help you to understand the various factors that come into play. We also offer our customers flexible payment options.

Whichever route you choose, you can trust our transmission experts to get you and your car back on the road.

Visit Mister Transmission for an assessment on what transmission repairs you may need. Contact the Mister Transmission service centre nearest to you.

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.

Learn More
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
Brought my 2016 Sorento in...
Greg Kervin
Brought my 2016 Sorento in for a failing transmission. Easy to talk to staff and knowledgeable.
Date: November 18, 2025
Website: Google
So far with the conversation...
Valentino McIntosh
So far with the conversation ❤️👍
Date: September 5, 2025
Website: Google
I brought my 2015 Scion...
Kyle Richie
I brought my 2015 Scion tC to them the end of last year and it’s been a rough battle trying to figure out what’s wrong with my transmission but both Kyle and Rob have been super friendly and helpful throughout each time I’ve had to bring it back, I have no complaints at all as I know my car isn’t a very popular model so I’m sure it hasn’t been easy but they’ve taken such good care of me and my car. As well the hold music is very upbeat and great to listen when needed.
Date: August 28, 2025
Website: Google
Was looking at doing some...
N 9
Was looking at doing some preventative maintenance on my transmission. Thought I was having some issues with the transmission so I wanted to get an assessment done. Turns out there was no issues found with the actual transmission. The service manager was open and honest with what they checked and was part of their free diagnostic. Would definitely return if I ever experience any issues in the future. Trustworthy team here at Mister Transmission.
Date: July 25, 2025
Website: Google
I had to have my...
Tracy Scott
I had to have my car towed to Mister Transmission as I got stuck in a parking lot and couldn't get it to shut off or switch into any gears. After waiting over 45 min in the extreme heat, and getting yelled at by ignorant people, my car was towed to Mister Transmission where Rob was waiting. This man is amazing!!! I was on the verge of a nervous breakdown, and Rob kept me calm, and was completely honest and transparent with me, he explained everything to me and when he would let me know what to expect. After leaving my car there and ubering home, Rob called 2 hours later to tell me they fixed my car and I could pick it up. They had other cars there and I wasn't expecting my car back until next week. Rob is a true blessing, and went above and beyond for me. I would recommend Rob and the team at Mister Transmission to anyone!!! Thank you for your honesty and hard work, it was truly appreciated.
Date: July 17, 2025
Website: Google
On June 30th 2025 I...
Audie D
On June 30th 2025 I was having such a horrible day. My boyfriend changed my transmission oil a few days prior. When I would reverse my car everything would shut off. 10 minutes to get out of a driveway is insane. The 30th of June i called Mister Transmission and Rob picked up and said I could drop my car off and he’d look into it. Rob and the man working with him were truly amazing. From the moment I walked into the building I was greeted. He didn’t try to con me as I am a female. Rob has a pure heart of gold. When my car was there it didn’t do any of the shutting off and they did every diagnosis test. I was beyond anxious and having a bad day Rob really calmed down and lightened the mood. Thank you Rob
Date: July 7, 2025
Website: Google
Awesome professional service... apart from...
Muhannad
Awesome professional service... apart from tranny service..they fixed other issues at no additional cost... many thx Robert.
Date: June 27, 2025
Website: Google
Awesome professional service... apart from...
Muhannad
Awesome professional service... apart from tranny service..they fixed other issues at no additional cost... many thx Robert.
Date: June 27, 2025
Website: Google
Friendly and knowledgeable service. Rob...
Walter Spera
Friendly and knowledgeable service. Rob was extremely friendly.
Date: June 10, 2025
Website: Google
Extremely professional, honest and very...
Ken Tolembek
Extremely professional, honest and very friendly. Initially I thought I had an oil leak in my transmission and left my 2016 Hyundai Santa Fe XL for a few hours to be inspected. They found out that although it looks like a transmission oil leak, in fact, it was the engine oil pressure switch issue. They could've charged me $200 just to look. They didn't charge me a dime and recommended reliable general mechanics in town. The Best service!
Date: June 5, 2025
Website: Google
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