GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Express 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Control Assembly Bulb Replacement

Removal Procedure
  1. Remove the heater and A/C control. Refer to Control Assembly Replacement .
  2. Pull the control head out far enough to reach the lamp bulb socket.
  3. Remove the lamp bulb and the socket with a 1/4 turn.
  4. Gently lift the lamp bulb and the socket out from the control head.

Installation Procedure
  1. Install the new lamp bulb and the socket by inserting the bulb and socket into the control head.
  2. Secure the bulb and the socket with a 1/4 turn.
  3. Install the heater and the A/C control. Refer to Control Assembly Replacement .