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Gear Position Sensor

By Bret Bodas, April 15, 2008

Commonly located on the automatic transmission, the gear position sensor communicates the gearshift’s position to the vehicle’s electrical system. The main purpose of this switch is to prevent the vehicle from starting unless the gearshift is in Park or Neutral.

Symptoms of a Bad or Failing Gear Position Sensor

  • Incorrect reading from the gear shift indicator
  • Illumination of the Check Engine Light
  • Failure of the engine to crank over

Gear Position Sensor Related Repair Advice

  • An improperly adjusted gear position sensor can exhibit the same symptoms as a failed part
  • Replacement of the automatic transmission will often require inspection and adjustment of the gear position sensor

1 User Comment

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By , September 18, 2017
Each time my car is trying to change gear i hear a noise and also the check engine light is on.could this be a gear related problem?

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