10 Ways to Care for Your Automatic Transmission

By Mister Transmission

Avoid costly transmission repairs. Read Mister Transmission’s 10 tips for keeping a car with an automatic transmission in good condition

Depending on the type of vehicle you drive and its age, transmission repairs can be costly. Sometimes it’s impossible to avoid having a transmission repair specialist service your vehicle particularly if you’re subjected to a total breakdown.

But there are things you can do to extend the life of your automatic transmission and prevent transmission failure. Read our checklist of top 10 transmission maintenance tips:

1. Check your transmission fluid periodically. On many cars, light trucks, and SUVs, checking the transmission fluid is as easy as checking the oil: with the engine idling, pull out the dipstick, wipe it off, insert it again, wait, then pull it out to get an accurate reading. If the fluid level is low, you may have a leak. The fluid itself should be a bright red colour, clear, and it should smell sweet. If it’s murky, dark coloured, or smells like rotting fish take it to a transmission repair specialist to look things over.

2. Use the right type of transmission fluid. Always consult your vehicle’s owner’s manual to determine what type of transmission fluid you should use. If after doing so you’re still not sure, pop in to a Mister Transmission and ask a professional.

3. Have your engine’s cooling system serviced. Your vehicle’s cooling system helps prevent the engine from overheating. But did you know it also ensures the transmission fluid pumping through the gearbox is cooled too? It’s more likely you’ll need a transmission repair before your engine completely overheats. Make sure your cooling system is in optimal condition.

4. Get your transmission flushed regularly. Changing the transmission fluid in your car is best left to a professional. Consult your car’s owner’s manual, but in general, get your vehicle’s transmission flushed once a year. How long the transmission fluid in your car will last depends on the vehicle’s operating temperature and how much driving you do.

5. Don’t change gears while your car is moving. Bring your vehicle to a complete stop before changing gears from ‘drive’ to ‘reverse’ or vice-versa. Failing to do so simply puts strain on your transmission and after awhile it can lead to a serious problem.

6. Let your car warm up before you drive. Who among us has hopped into the driver’s seat, started the engine, put the car in drive and motored away? (Full disclosure: I’m as guilty as you are) Always allow your engine a few minutes to warm up before you begin to drive, especially during the winter months.

7. Don’t drive on a spare tire for an extended period of time. Mismatched tire sizes, or driving with a small spare tire over a long period of time is a no-no. Not only will it do damage to other parts of your vehicle such as ruin the wheel alignment, after a while it puts unnecessary strain on the transmission.

8. Regularly change the transmission filter. That’s right: your car’s automatic transmission may have a filter, and it needs to be changed from time to time. Whether or not you’re driving a car that has a transmission filter depends entirely on the make and model. Most newer vehicles don’t have a transmission filter but those that do should be changed each time you get your transmission flushed.

9. Avoid using your vehicle for towing. Using your car to tow heavy loads, particularly in hot temperatures, can cause the transmission fluid to oxidize or burn, and in turn, do a lot of damage to the transmission.

10. Have your transmission inspected annually. Having a certified transmission repair specialist conduct a diagnostic check of your transmission for leaks and other abnormalities at least once a year, as well as checking the transmission fluid’s level, colour, and smell periodically is smart preventative maintenance.

If you are in the Weston neighbourhood in northeast Toronto near the Humber River, or driving on Black Creek Drive south of Highway 401 and are experiencing transmission troubles or suspect you are, call us now at 416-249-1300, or visit us at 1677 Jane Street in North York. Stranded roadside because of a breakdown? Our tow truck is standing by. Our certified transmission repair specialists will get your car back on the road again quickly.

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Customer Reviews
My car died and they...
Jason Jones
My car died and they were kind enough to give me a boost and recommend me to a mechanic that can help I highly highly recommend Mr transmission great service and good guys
Date: February 5, 2026
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Had a complete transmission rebuild...
George H.
Had a complete transmission rebuild done here on my old Honda Ridgeline. Phil was excellent to deal with. Thank you!
Date: February 5, 2026
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Had my car Toyota Venza...
Ron Erickson
Had my car Toyota Venza CAA Towed after car censor lights showed transmitmisson lights etc. Went off. Owner drove me home. They reset check everything NO charge. Very honest and trustworthy!
Date: February 4, 2026
Website: Google
I had a fantastic experience...
Main Shalabi
I had a fantastic experience with this mechanic. Despite dealing with a complicated warranty situation and multiple issues with my car’s transmission, he was incredibly kind, helpful, and persistent. In the end, he managed to fix my transmission and get everything running smoothly, amazing owner , amazinf staff and. Highly recommended!
Date: February 4, 2026
Website: Google
Had some clutch issues. Explained...
A R
Had some clutch issues. Explained the issues to Joe and he just had me pump the clutch a few times while he looked under the hood and it turns out to be just air in the hydraulic system. He could have given me the dealer treatment and charged me for diagnostic fees and shop time but he didn’t. He took me for a quick drive around to make sure it’s working and sent me on my way. That’s the kind of place this is. Honest people. Will come back (hopefully not) but if I ever have any transmission issues, this is where I’ll go. Highly recommended.
Date: February 4, 2026
Website: Google
Thanks to Christine and Chris...
Star Gazer
Thanks to Christine and Chris for saving my 2019 F150! Amazing!
Date: February 4, 2026
Website: Google
Mister Transmission came highly recommended...
Renaya Darsi
Mister Transmission came highly recommended by my local auto shop when I had transmission issues, and I can see why. The entire process of dealing with them was absolutely fantastic - from the helpful and friendly lady at the front desk to Kris who worked on my car, I couldn’t have asked for better service. They are friendly, honest, knowledgeable, full of sound advice and a pleasure to do business with. I will definitely be coming back if I ever need help with another transmission.
Date: February 4, 2026
Website: Google
Great service, knowledgeable people. Your...
Joseph Viscardi
Great service, knowledgeable people. Your vehicle is in good hands
Date: February 4, 2026
Website: Google
this place was amazing garry...
Matthew McCormick
this place was amazing garry fixed my transmission quickley at minimum cost if your having transmission problems dont wait come see them asap
Date: February 4, 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
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