Installation Procedure

2025 Chevrolet Suburban LS, RWDSECTION Installation Procedure
  1. GM5782968Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    Automatic Level Control Air Supply Reservoir Coupling (1) - Install and tighten - Fastener Specifications 

  2. GM5612578Courtesy of GENERAL MOTORS COMPANY

    Install CH-52667  Air Spring Inflator to the automatic level control air supply reservoir air valve (2) and set the regulator on the nitrogen tank to 16 Bar (232 PSI).

  3. Using CH-52667  Air Spring Inflator, open the valve on the pressure gage to fill the automatic level control air supply reservoir.
  4. Using CH-52667  Air Spring Inflator and the shop nitrogen tank, fill the automatic level control air supply reservoir to 16 Bar (232 PSI).
  5. Close the pressure gauge valve and remove CH-52667  Air Spring Inflator from the automatic level control air supply reservoir.
  6. Install the automatic level control air supply reservoir air valve cap (1) and tighten. Fastener Specifications .
  7. Partially lower the vehicle, but DO NOT let the wheels touch the ground.
  8. Using GDS2 tool, use short-term inflate to increase pressure to the air springs:
    • Front: 6 Bar (87 PSI)
    • Rear: 5 Bar (73 PSI)
  9. Using GDS2, verify automatic level control air supply tank pressure is at 16 Bar (232 PSI), if not repeat steps 2 - 5.
  10. Remove the support and lower the vehicle.
RENDER: 1.0x

NO RELATED

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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.