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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1449 (SHIFT INTERLOCK SYSTEM)REPAIR INSTRUCTIONSAUTOMATIC TRANSMISSION SHIFT LOCK ACTUATOR REPLACEMENTREMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Removing/Installing Center Console Assembly
    GM1234306Courtesy of GENERAL MOTORS CORP.
  1. Remove the console. Refer to Console Replacement in Instrument Panel, Gages, and Console.
    2. Fig 2: Disconnecting/Connecting Shift Lock Actuator Electrical Connector
    GM1341666Courtesy of GENERAL MOTORS CORP.
  2. Disconnect the shift lock actuator (3) electrical connector.
    3. Fig 3: Removing/Installing Shift Lock Actuator
    GM1199544Courtesy of GENERAL MOTORS CORP.
  3. Shift assembly to the low position.
  4. Loosen and remove the screw at the rear of the shiftier assembly.
  5. Shift the assembly to the NEUTRAL position.
  6. Loosen and remove the top screw of the shift lock actuator through the lever slot.
  7. Pull lever to the drive position and remove the shift lock actuator.
RENDER: 1.0x

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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.