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Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 439 (Shift Lock Control System) >> Repair Instructions >> Automatic Transmission Shift Lock Actuator Replacement >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Firmly install the shift lock control actuator onto the steering column jacket and the cable shift cam.
    Fig 1: View Of Automatic Transmission Shift Lock Control Actuator
    GM324906Courtesy of GENERAL MOTORS CORP.
  2. Connect the electrical connector.
  3. Adjust the shift lock control actuator (with the shift lever clevis in the neutral position) in the following way:
    1. Pull out the tab (1) on the adjuster block side (2) of the shift lock control actuator.
    2. Press on the adjuster block (2) to compress the internal adjuster spring which disengages the adjuster teeth. Slide the adjuster block (2) as far away from the actuator as possible.
    3. Lock the adjuster block (2) in place by pushing in on the tab (1).
    4. Fig 2: Adjusting Automatic Transmission Shift Lock Control Actuator
      GM324912Courtesy of GENERAL MOTORS CORP.
  4. Inspect the shift lock control actuator for the following items:
    1. The shift lock control actuator must lock the shift lever clevis when the shift lever clevis is put into the park position.
    2. Depress the brake pedal to move the shift lever out of the park position.
    3. The actuator will be energized.
    4. Readjust the shift lock control actuator if needed.
  5. Install the BCM. Refer to Body Control Module Replacement in Body Control System.
  6. Enable the SIR system. Refer to SIR Disabling and Enabling Zone 3 in SIR.