GM Service Manual Online
For 1990-2009 cars only

Auxiliary Heater and Air Conditioning Control Replacement - Front Front Overhead Control A/C Only

Removal Procedure


    Object Number: 612493  Size: SH
  1. Remove the overhead console screw.
  2. Remove the overhead console from the headliner.
  3. Disconnect the electrical connectors from the auxiliary HVAC control assembly.
  4. Remove the overhead console from the vehicle.
  5. Remove the auxiliary HVAC control assembly from the overhead console.

Installation Procedure


    Object Number: 612493  Size: SH
  1. Install the auxiliary HVAC control assembly to the overhead console.
  2. Connect the electrical connectors to the auxiliary HVAC control assembly.
  3. Install the overhead console to the headliner.
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the overhead console screw.
  6. Tighten
    Tighten the screw to 2 N·m (18 lb in).

Auxiliary Heater and Air Conditioning Control Replacement - Front Front Overhead Control Heat and A/C

Removal Procedure


    Object Number: 612477  Size: SH
  1. Remove the overhead console screw.
  2. Remove the overhead console from the headliner.
  3. Disconnect the electrical connectors from the auxiliary HVAC control module assembly.
  4. Remove the overhead console from the vehicle.
  5. Remove the auxiliary HVAC control assembly from the overhead console.

Installation Procedure


    Object Number: 612477  Size: SH
  1. Install the auxiliary HVAC control assembly to the overhead console.
  2. Connect the electrical connectors to the auxiliary HVAC control module assembly.
  3. Install the overhead console to the headliner.
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the overhead console screw.
  6. Tighten
    Tighten the screw to 2 N·m (18 lb in).