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Home >> Chevrolet >> 2018 >> Suburban 3500 HD LT >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Power Door Lock System And Release System - Repair Instructions >> Repair Instructions >> Front Side Door Lock Cylinder Replacement >> Installation Procedure

Installation Procedure

  1. If replacing with a NEW lock cylinder, code the NEW lock cylinder. Refer to Front Side Door Lock Cylinder Coding .
    2. Fig 1: Lock Cylinder Retainer, Lock Cylinder And Handle Bracket
    GM3966788Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure that the door lock cylinder is engage all the way into the side door handle locator tabs. Insert the key into the door lock cylinder, turn left to right checking for binding before install the assembly to the vehicle.

  2. Install the lock cylinder retainer (1) to the front side door outside handle bracket assembly (3).
  3. Install the door lock cylinder (2) in the front side door outside handle bracket, push forward locking the lock cylinder (2) into the lock cylinder retainer.
    4. Fig 2: Front Side Door Lock Cylinder Rod
    GM2756982Courtesy of GENERAL MOTORS COMPANY
  4. Connect the door lock cylinder rod (1) to the lock cylinder.
  5. Install the front side door latch and handle bracket assembly as one in the vehicle. Refer to Front Side Door Latch Replacement .
  6. Ensure that the door lock system operates properly before installing the trim.
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