Headlamp Bulb Replacement. Cadillac STS 2009

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2009 🢒 STS 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Headlamp Bulb Replacement

Headlamp Bulb Replacement HID Hi Beam

Object Number: 1737640 Size: MF

Callout

Component Name

Warning: 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.

Warning: 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.

Warning: Refer to Halogen Bulb Warning in the Preface section.

Preliminary Procedure

Remove the headlamp assembly. Refer to Headlamp Replacement.

1

Headlamp Bulb Access Cover Screw (Qty: 4)

Caution: Refer to Fastener Caution in the Preface section.

Tighten
3 N·m (27 lb in)

2

Headlamp Bulb Access Cover

3

High Beam Headlamp Bulb

Caution: When removing or replacing the arc tube, the arc tube must not contact the side of the headlamp housing or the bulb shield. Damage to the arc tube may result.

Tip
Disconnect all electrical connectors before attempting removal.

Headlamp Bulb Replacement HID Lo Beam

Object Number: 1737639 Size: MF

Callout

Component Name

Warning: 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.

Warning: 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.

Warning: Refer to Halogen Bulb Warning in the Preface section.

Preliminary Procedure

Remove the headlamp assembly. Refer to Headlamp Replacement.

1

Headlamp Bulb Access Cover Screw (Qty: 4)

Caution: Refer to Fastener Caution in the Preface section.

Tighten
3 N·m (27 lb in)

2

Headlamp Bulb Access Cover

3

Low Beam Headlamp Bulb

Caution: When removing or replacing the arc tube, the arc tube must not contact the side of the headlamp housing or the bulb shield. Damage to the arc tube may result.

Tip
Disconnect all electrical connectors before attempting removal.

Headlamp Bulb Replacement Lo Beam

Object Number: 1737611 Size: MF

Callout	Component Name
Preliminary Procedure Remove the headlamp assembly. Refer to Headlamp Replacement.
1	Headlamp Bulb Access Cover Screw (Qty: 4) Caution: Refer to Fastener Caution in the Preface section. Tighten 3 N·m (27 lb in)
2	Headlamp Bulb Access Cover
3	Low Beam Headlamp Bulb Warning: Refer to Halogen Bulb Warning in the Preface section. Tip Disconnect all electrical connectors before attempting removal.

Headlamp Bulb Replacement Hi Beam

Object Number: 1737610 Size: MF

Callout	Component Name
Preliminary Procedure Remove the headlamp assembly. Refer to Headlamp Replacement.
1	Headlamp Bulb Access Cover Screw (Qty: 4) Caution: Refer to Fastener Caution in the Preface section. Tighten 3 N·m (27 lb in)
2	Headlamp Bulb Access Cover
3	High Beam Headlamp Bulb Warning: Refer to Halogen Bulb Warning in the Preface section. Tip Disconnect all electrical connectors before attempting removal.