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HOMESERVICE MANUALSCHEVROLET2019EXPRESS 2500 BASE, VAN CARGO EXTENDED, 6.0L ENG VIN GREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 12 (WIRING SYSTEMS AND POWER MANAGEMENT - REPAIR INSTRUCTIONS)REPAIR INSTRUCTIONSIGNITION LOCK CYLINDER REPLACEMENTINSTALLATION PROCEDURE
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN G

Installation Procedure

2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN GSECTION Installation Procedure
WARNING: This page is about a different car, the 2018 GMC Savana 3500, 2018 GMC Savana 2500, 2018 Chevrolet Express 3500, and 2018 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
  1. If required, code the NEW ignition lock cylinder.
  2. GM4851013Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The gears between the ignition and start switch and the ignition lock cylinder case MUST be in the correct position. The incorrect position will cause a misalignment of the gears in the ignition and start switch and the ignition lock cylinder case MAY result in a NO START or BATTERY DRAIN condition.

    Use a flat screwdriver (1) to rotate the ignition lock cylinder case gear clockwise to the START position, then release the gear, allowing it to return under spring tension to the RUN position.

  3. GM4850572Courtesy of GENERAL MOTORS COMPANY

    Perform the following steps to install the ignition lock cylinder (1):

    1. Install the ignition lock cylinder into the ignition lock cylinder case until it locks in place.
    2. Pull lightly on the ignition lock cylinder to ensure the lock tab inside of the ignition lock cylinder case is fully engaged.
  4. GM4850571Courtesy of GENERAL MOTORS COMPANY

    Install the key chime switch (1) to the ignition lock cylinder case.

  5. Install the steering column trim covers. Steering Column Trim Cover Replacement
  6. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection (Single Battery)Battery Negative Cable Disconnection and Connection (Dual Battery)
  7. Program the theft deterrent system. Control Module References
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.