GM Service Manual Online
For 1990-2009 cars only

Object Number: 1789072  Size: SF

Callout

Component Name

Caution: The high intensity discharge system produces high voltage and current. In order to reduce the risk of severe shocks and burns, the battery negative cable must be disconnected any time service work is being performed on or around the high intensity discharge system.

Caution: The high intensity discharge system produces high voltage and current. To reduce the risk of severe shocks and burns:

   • Never open the high intensity discharge system ballast or the arc tube assembly starter.
   • Never probe between the high intensity discharge system ballast output connector and the arc tube assembly.

Preliminary Procedure

Remove the HID headlamp assembly. Refer to High Intensity Discharge Headlamp Replacement .

1

Headlamp Ballast Cover Assembly Screw (Qty: 4)

Notice: Refer to Fastener Notice in the Preface section.

Tighten
3 N·m (27 lb in)

2

Headlamp Ballast Cover Assembly

Tip
Pull the ballast downward away from the bottom of the lamp assembly in order to disconnect the electrical connection for the ballast.

3

Headlamp Ballast Screw (Qty: 3)

Tighten
3 N·m (27 lb in)

4

Headlamp Ballast Assembly