GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2002 🢒 TrailBlazer - 2WD 🢒 Steering 🢒 Steering Wheel and Column 🢒 Electronic Park Lock Switch Replacement

Removal Procedure

    Object Number: 389654 Size: SH

    Caution: This vehicle is equipped with a Supplemental Inflatable Restraint (SIR) System. Failure to follow the correct procedure could cause the following conditions:

       • Air bag deployment
       • Personal injury
       • Unnecessary SIR system repairs
    In order to avoid the above conditions, observe the following guidelines:
       • Refer to SIR Component Views in order to determine if you are performing service on or near the SIR components or the SIR wiring.
       • If you are performing service on or near the SIR components or the SIR wiring, disable the SIR system. Refer to Disabling the SIR System.

  1. Disable the inflatable restraint steering wheel module. Refer to Disabling the SIR System in SIR.
  2. Remove the upper and lower trim covers. Refer to Steering Column Trim Covers Replacement .
  3. Remove the connector (2) from the electric park lock (1).

    4. Object Number: 368489 Size: SH
  4. Pry the electric park lock (2) off of the ignition lock cylinder case assembly (1).

Installation Procedure

    Object Number: 368489 Size: SH
  1. Snap the electric park lock (2) onto the ignition lock cylinder case assembly (1).

    2. Object Number: 389654 Size: SH

    Caution: Improper routing of the wire harness assembly may damage the inflatable restraint steering wheel module coil. This may result in a malfunction of the coil, which may cause personal injury.

  2. Reconnect the connector (2) to the electric park lock (1).
  3. Install the upper and lower trim covers. Refer to Steering Column Trim Covers Replacement .
  4. Enable the inflatable restraint steering wheel module. Refer to Enabling the SIR System in SIR.