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2009 CHEVROLET TRAVERSE
3.6L V6•AWD•AUTOMATIC•gas
8 active safety recalls on this vehicle — view recalls
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Repairs0Labor484Torque3355Fluid10DTC1954Battery1Maintenance0Recalls8
P0872moderate severityPowertrain

Transmission Fluid Pressure Sensor/Switch C Circuit Low

on 2009 Chevrolet Traverse 3.6L V6 · AWD

What this code means

The transmission fluid pressure sensor C circuit is reporting a voltage that is too low. This often points to a short or a genuine loss of hydraulic pressure.

Symptoms

  • Slipping transmission
  • Delayed engagement
  • Warning light illuminated

Common causes

  • Low transmission fluid
  • Short to ground in wiring
  • Failed pressure sensor
  • Internal pump or seal leak

Diagnostic steps

  1. Verify transmission fluid level
  2. Check circuit for short to ground
  3. Measure sensor voltage with scan tool
  4. Perform hydraulic pressure test
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