How Long Does a Transmission Position Sensor (Switch) Last?

All automatic transmission vehicles have a safety switch in place that only allows them to start if they are in park or neutral gars. The transmission position sensor, also called the transmission position switch, ensures the vehicle is in neutral or park when the vehicle is started up. If the sensor reads the vehicle is in drive or any other gear, the car is equipped with a safety shutdown that will not allow the vehicle to start at all.

The transmission position sensor is located on the side of the transmission. Power is not sent to the starter circuit unless the sensor reads the vehicle is in neutral or park. Furthermore, the vehicle will not even crank to prevent vehicle movements. Over time, the transmission position sensor can go bad or fail. This can mean the vehicle may start in a gear other than park or neutral, which can be a dangerous situation.

Sometimes a sensor problem can mimic other problems, such as a dead battery. If the sensor has completely failed and the vehicle will not start at all, it may be hard to tell the difference between the sensor and a dead battery. After jumping the vehicle and it still does not turn on, the problem may be with the transmission position sensor, but it is best to have it looked at by a mechanic to be sure.

Since the transmission position sensor can fail and go bad over time, it is important to recognize the symptoms it gives off before it completely fails.

Signs your transmission position sensor needs to be replaced include:

  • The engine will start while the gear is in drive or reverse

  • The vehicle will start in neutral, but not park

  • The vehicle will not start at all, not even turn over

This is a repair that needs to be attended to right away as failing to do so can cause your vehicle to be inoperable. Have a certified mechanic replace the failing transmission position sensor switch to eliminate any further problems with your


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Recent Transmission Position Sensor (Switch) Replacement reviews

Excellent Rating

(58)

Rating Summary
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Mathew

24 years of experience
93 reviews
Mathew
24 years of experience
Mitsubishi Diamante V6-3.5L - Transmission Position Sensor (Switch) - Jacksonville, Florida
He showed up right on time and took his time going thru service and other facets of my vehicle that weren't even being serviced. He went Above and Beyond by helping me with the hood of the car-the latch had broke and he jimmied it where it could open and close after it was in a fender bender-it had Nothing to do with why he was there, but he made sure it was road worthy...We definitely found Our Mechanic in Mathew!
Ford Escape - Transmission Position Sensor (Switch) - Jacksonville, Florida
Excellent Mechanic, very thorough and honest with me. Also informed me info about my car as far as how to do things myself.

Reginald

37 years of experience
93 reviews
Reginald
37 years of experience
Buick Century V6-3.1L - Transmission Position Sensor (Switch) Replacement - Los Angeles, California
The mechanic was very knowledgeable about the car and the problem. He also was very friendly, and had " excellent " customer service skills.

Juan

9 years of experience
301 reviews
Juan
9 years of experience
Audi A4 Quattro V6-3.0L - Transmission Position Sensor (Switch) - Orlando, Florida
Juan has performed two services on my Audi and does an amazing job! He is punctual and incredibly thorough. I would highly recommend him and will use him again.

Jermaine

24 years of experience
244 reviews
Jermaine
24 years of experience
Mercury Grand Marquis V8-4.6L - Transmission Position Sensor (Switch) - Hyattsville, Maryland
Mr. Lewis was quick and efficient. He identified, resolved, and corrected my problem. I appreciated his professionalism, integrity and skill set.

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