GM Service Manual Online
For 1990-2009 cars only

Disassembly Procedure


    Object Number: 1223546  Size: SH
  1. Remove the heater module. Refer to Heater Module Replacement .
  2. Remove the heater core cover (1).
  3. Remove the heater core (2).

Assembly Procedure


    Object Number: 1223547  Size: SH
  1. Install the heater core to the heater module.
  2. Install the heater core cover.
  3. Install the heater module. Refer to Heater Module Replacement .