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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 221 (Lighting System - Repair Instructions) >> Repair Instructions >> Headlamp Bulb Replacement (Sedan with HID)

Headlamp Bulb Replacement (Sedan with HID)

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Headlamp Bulb (Sedan with HID)
GM3750255Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
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:

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

  1. Remove the front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement (Non V-Series)Front Wheelhouse Liner Replacement (V-Series) .
  2. Remove the headlamp bulb access cover. Refer to Headlamp Bulb Access Cover Replacement (Sedan with HID) .
1 Headlamp Bulb Retainer Screw (Qty: 2)
Procedure 
Remove the headlamp bulb retainer screw and bracket.
2 Headlamp Bulb

Procedure

  1. Disconnect the electrical connector.
  2. Pull the headlamp bulb straight out.
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