GM Service Manual Online
For 1990-2009 cars only

HVAC Air Filter Replacement Procedure


    Object Number: 493719  Size: SH
  1. Pry up the access cover in the air inlet panel and remove the HVAC filter access cover from the passenger side of the cowl.

  2. Object Number: 592433  Size: SH
  3. Flex the passenger side of the HVAC filter housing (1) in order to release the HVAC filter from the housing.

  4. Object Number: 592435  Size: SH
  5. Remove the HVAC filter from the cowl and housing.

HVAC Air Filter Installation


    Object Number: 592433  Size: SH
  1. Flex the passenger side of the HVAC air filter housing (1) in order to allow the air filter to slide into the housing.

  2. Object Number: 592435  Size: SH
  3. Install the HVAC air filter in the filter housing.
  4. Install the HVAC filter access cover.

HVAC AIR Filter And Housing Replacement Procedure


    Object Number: 493719  Size: SH
  1. Remove the HVAC filter access cover from the passenger side of the cowl.

  2. Object Number: 474759  Size: SH
  3. Remove the push pin retainer (2) from the forward edge of the HVAC filter and housing (1).

  4. Object Number: 517278  Size: SH
  5. Using a flat bladed tool, release the retainer tab (1) on the passenger side of the HVAC filter and housing by inserting the tool between the air filter and the compartment wall on the outboard side of the vehicle.

  6. Object Number: 474761  Size: SH
  7. Grasp the HVAC filter and housing (1) assembly and remove the assembly from the opening.
  8. Remove the HVAC filter from the HVAC filter housing (1).

HVAC AIR Filter And Housing Installation Procedure

  1. Install the HVAC filter into the HVAC filter housing (1).

  2. Object Number: 474761  Size: SH
  3. Install the HVAC filter and housing (1) into the opening in the cowl.
  4. Push the filter housing toward the rear of the vehicle until a click is heard.


    Object Number: 474759  Size: SH
  5. Install the push pin retainer (2) into the forward corner of the HVAC filter housing (1).
  6. Install the HVAC filter cover.