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HOMESERVICE MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 213 (HVAC SYSTEM - AUTOMATIC)REPAIR INSTRUCTIONSHVAC CONTROL MODULE REPLACEMENTINSTALLATION PROCEDURE
2008 Pontiac Grand Prix Base

Installation Procedure

2008 Pontiac Grand Prix BaseSECTION Installation Procedure
WARNING: This page is about a different car, the 2007 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: The key should be in the off position when connecting the HVAC control module electrical connector to ensure proper calibration.
  1. Connect the electrical connectors to the HVAC control module.
    2. Fig 1: HVAC Control Module Retaining Screws
    GM1550657Courtesy of GENERAL MOTORS CORP.
  2. Install the HVAC control module into the I/P.
    3. NOTE: Refer to Fastener Notice .
  3. Install the retaining screws (1) to secure the HVAC control module.

    Tighten:  Tighten the screws to 2 N.m (18 lb in).

  4. Install the I/P center compartment. Refer to Instrument Panel Center Compartment Replacement .
  5. Install the I/P accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement .
    6. IMPORTANT: Do not adjust any controls on the HVAC control module while the HVAC control module is self calibrating. If interrupted, improper HVAC performance will result. The engine must be running for proper calibration to occur.
  6. Start and allow the engine to run for at least one minute.
  7. Refer to Control Module References for programming and setup information.
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.