Automatic Transmission Service & Repair London, Ontario

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.

Frequently Asked Questions

  • What automatic transmission services are available? +

    Mister Transmission London Dundas Street provides a full range of automatic transmission services, including advanced diagnostics, fluid checks and changes, repairs, rebuilds, and complete replacements. Our technicians are trained to handle all makes and models, ensuring accurate solutions for both minor issues and major transmission problems.

  • What are common automatic transmission problems? +

    Common automatic transmission issues include slipping gears, delayed shifting, rough gear changes, fluid leaks, overheating, and warning lights on the dashboard. These problems can worsen over time, so it’s important to have your vehicle inspected by Mister Transmission London Dundas Street at the first sign of trouble.

  • How can I maintain my automatic transmission? +

    Regular maintenance is key to extending the life of your automatic transmission. This includes routine fluid checks, timely fluid changes, and periodic inspections. Avoid aggressive driving and overheating, and have your transmission serviced by Mister Transmission London Dundas Street to ensure optimal performance and reliability.

  • Is automatic transmission repair expensive? +

    The cost of automatic transmission repair varies depending on the issue, vehicle type, and severity of damage. Minor repairs are typically more affordable, while major rebuilds can be more costly. Mister Transmission London Dundas Street provides accurate diagnostics and transparent recommendations to help you choose the most cost-effective solution.

  • When should I service my automatic transmission? +

    You should service your automatic transmission according to your vehicle manufacturer’s guidelines or whenever you notice symptoms such as slipping, unusual noises, or delayed shifting. Regular servicing at Mister Transmission London Dundas Street helps prevent breakdowns and ensures long-term performance.

View All FAQs
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
Super impressed with the service...
Bobby Newton
Super impressed with the service provided by Peter. After going to a smaller transmission shop twice and never really addressing all of my vehicle issues. I decided to go to a larger chain. Peter seemed like he knew what he was doing from the get go. Truck is now running smooth. Definitely under promise over delivery. Highly recommend Peter
Date: April 16, 2026
Website: Google
Spencer was nice and looked...
Jarrett Hoben
Spencer was nice and looked at my car for free , told me my transmission wasn’t the problem very honest place
Date: February 3, 2026
Website: Google
I had an excellent experience...
Kenia (Ken)
I had an excellent experience with Mister Transmission and would absolutely recommend them. I originally took my car to a general mechanic who couldn’t find the issue and referred me to another transmission shop. That shop told me I would need a new transmission, with an estimated cost of $7,000–$9,000. After reading the great reviews, I decided to take my car here for a third opinion and to see if they could get me in sooner and am I ever glad I did! They quickly told me it didn’t seem like a transmission issue and offered to take a deeper look if I brought the car back as I had just quickly dropped in. When I did, they properly diagnosed the actual problem. It was such a relief to find out it wasn’t a transmission issue. Even though the repair wasn’t transmission-related, they were more than willing to fix it and were very upfront about my options. Peter, the owner, was incredibly kind and took the time to explain exactly what was wrong and how everything was connected. The service was honest, transparent, and completely stress-free. I’ll definitely be back and would trust them again without hesitation.
Date: December 16, 2025
Website: Google
I was there for a...
Peter Resko
I was there for a transmission service and I was very delighted with them. Professional people with knowledge.
Date: November 24, 2025
Website: Google
I brought my Nissan NV200...
Thames Valley
I brought my Nissan NV200 work van in, because I was having acceleration/power issues and what I thought was transmission issues. The owner Peter immediately recognized that I didn’t actually have transmission issues, it was in fact, a clogged catalytic converter rather than an CVT transmission issue. He then recommended me to the appropriate specialist that had me up and running again within an hour I was back to work! Super happy with the honest service and expertise.
Date: October 24, 2025
Website: Google
Good service and listens to...
Johnny1Leg
Good service and listens to the customer issues of their vehicle.
Date: September 4, 2025
Website: Google
Good service and listens to...
Johnny1Leg
Good service and listens to the customer issues of their vehicle.
Date: September 4, 2025
Website: Google
They listened to my concerns...
Scott Lupa
They listened to my concerns and preformed what I asked them to do. I was in and out in a few hours. Thank you. I would recommend them to anyone that needs transmission work.
Date: August 13, 2025
Website: Google
Brought my 2018 VW Passat...
GT
Brought my 2018 VW Passat in thinking I definitely had a transmission issue only to find out that it was something else. Spencer was excellent in explaining what was wrong with my car and couldn't be more friendly and offered to recommend places for the work to be done. I came away from Mr Transmission very impressed and would not hesitate to recommend them or bring my vehicle back again.
Date: July 17, 2025
Website: Google
Brought my 2018 VW Passat...
GT
Brought my 2018 VW Passat in thinking I definitely had a transmission issue only to find out that it was something else. Spencer was excellent in explaining what was wrong with my car and couldn't be more friendly and offered to recommend places for the work to be done. I came away from Mr Transmission very impressed and would not hesitate to recommend them or bring my vehicle back again.
Date: July 17, 2025
Website: Google
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