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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1097 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)REPAIR INSTRUCTIONSINFLATABLE RESTRAINT FRONT END SENSOR REPLACEMENTREMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disable the SIR system. Refer to SIR Disabling and Enabling Zone 1 .
  2. Remove the grille. Refer to Fascia Grille Replacement (Aztek) or Fascia Grille Replacement (Rendezvous) in Bumpers.
  3. Remove the retainers that hold the upper front bumper fascia to the radiator support.
  4. Pull the fascia from the radiator support to gain access to the sensor bolts.
    5. Fig 1: View Of Sensor, CPA & Yellow Sensor Harness Connector
    GM809058Courtesy of GENERAL MOTORS CORP.
  5. Remove the orange connector position assurance (CPA) (2) from the yellow sensor harness connector (3).
  6. Disconnect the harness connector from the sensor (1).
    7. Fig 2: Inflatable Restraint Front End Sensor Bolts
    GM809051Courtesy of GENERAL MOTORS CORP.
  7. Remove the sensor bolts (1).
  8. Remove the sensor (2) from the upper radiator core support (3).
RENDER: 1.0x

NO RELATED

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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.