The Risks of a Faulty Transmission Range Switch

By Mister Transmission

If you hear a clicking sound instead of the familiar roar of your engine when turning the ignition key, your car’s transmission range switch or sensor may have failed

Have you ever tried to start your car while it’s running or is in gear?

It may make a terrible sound, but it’s impossible to do thanks to a safeguard built into your vehicle called a transmission range switch or transmission range sensor (TRS).

Sometimes called a neutral safety switch, the TRS is an electrical switch that tells your vehicle’s powertrain control module what gear your transmission is in when you turn the ignition key to the “on” position. Its function is to prevent you from attempting to start your engine while it’s running unless the transmission is in the ‘neutral’ or ‘park’ position, or if your car has a manual transmission if you depress the clutch pedal.

Like any mechanical component, the TRS can become faulty through wear and tear over time, and that can lead to significant problems with your transmission.

Testing the TRS is an oft-overlooked troubleshooting step that many mechanics neglect when attempting to diagnose transmission problems. If your TRS is failing or has failed, when you turn the ignition key, you’ll likely hear a clicking sound instead of the familiar roar of your engine as it turns over.

Faulty Transmission Range Switch Warning Signs
If your car’s TRS is on the fritz, either you won’t be able to start your car or the “service engine soon” light on your dashboard will remain lit. Other warning signs of a faulty transmission range switch include your car starting in the wrong gear, the transmission struggling to change gears or gears slippage.

If you can start your engine, drive it to a Mister Transmission location near you and have it inspected by one of our experienced technicians, otherwise you run the risk of not being able to restart your vehicle later and may have to call a tow truck.

Do you have questions about your car’s transmission range switch? Talk to an expert Mister Transmission technician. Find your nearest location.

Want to know more?
Visite one of our locations!

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Customer Reviews
They are great down to...
Chad Binnie
They are great down to earth service and have an excellent work ethic
Date: October 9, 2021
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Awesome customer service. A year...
Jeffrey Dominic
Awesome customer service. A year after my transmission repair I felt an adjustment was required to my transmission and they performed it free of charge standing behind the quality of their work.
Date: October 8, 2021
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Excellent service, my car was...
Phyllis Roy
Excellent service, my car was fixed in no time & they did a professional job...I recommend it!
Date: October 7, 2021
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I have known Eric and...
Jared Shura
I have known Eric and his crew for some time now. As a mechanic, I often come across difficult transmission related issues that get sent to him and resolved quickly and fairly priced. I just had Eric rebuild the transmission in my truck and I couldn’t believe how fairly priced the work was and the transmission shifts perfect now. Wouldn’t recommend anyone else but Eric at Mr.Transmission.
Date: October 7, 2021
Website: Google
Mister Transmission staff were very...
R R
Mister Transmission staff were very professional and friendly. Answered all our questions and kept us upto date with the process.Jenna is wonderful she is friendly and professional and was able to respond in timely matter . Thank you Jenna your are great employee. I highly recommend them for any one in moncton and surrounding areas. They did an excellent work thank you so much.Ruby
Date: October 7, 2021
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Jeff was very kind and...
Julie Restas
Jeff was very kind and helped me a great deal. Would recommend to anyone. Diagnosis was not transmission recommended to go for other problem, did not charge me Unbelievable service and trustworthy.
Date: October 7, 2021
Website: Google
It is not too often...
Jim Cerant
It is not too often when you find a local business that has over 50 5 star ratings, and when you do, you know that you are at the right place to get what you need, done. that was my experience with Mr. Transmission in Owen Sound . My first point of Contact was Warren who was great to speak with and we arranged a time to bring the car in. Later that week after I dropped off the car I had a chance to speak with the owner Chris. Again. another great guy to speak with and knew I was at the right place. They diagnosed the problem - Told me what it needed- gave me the price - fixed the problem- and in no time at all I was on my way. That is what I call great customer service. if you want to RYDNSTYL you need to visit Mr. Transmission in Owen Sound. Jim
Date: October 5, 2021
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Got my trans fixed here....
Paul Ferrante
Got my trans fixed here. It still had issues brought it back and they honored the warranty with no hassle at all .. very pleasant management.. very easy to talk to . Great job . Truck is running perfect again . I recommend these guys..
Date: October 4, 2021
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Great customer service
Darlene Cross
Great customer service
Date: October 3, 2021
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Honest & professional auto repairHighly...
Clenry Guzman
Honest & professional auto repairHighly recommend 👍
Date: October 2, 2021
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