Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Sensor, Seat Track Position: Description
The Seat Track Position Sensor (STPS) (1) is a Hall Effect-type sensor. This sensor consists of a Hall Effect Integrated Circuit (IC) chip encased in potting material within a cavity of the molded plastic sensor housing.
The STPS housing has an integral snap feature (3) and snaps into a stamped metal bracket located on the inboard side of one of the seat adjuster tracks on the driver side front seat in vehicles manufactured for domestic markets, then is secured by a screw into a mounting boss (4) at one end of the STPS housing. A molded connector receptacle (2) that is integral to the opposite end of the sensor STPS from the mounting boss is connected to the vehicle electrical system through a connector and take out of the body wire harness beneath the front seat cushion.
The STPS cannot be adjusted or repaired and, if ineffective or damaged, the entire STPS unit must be replaced.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.