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Home >> Cadillac >> 2006 >> STS V >> Repair and Diagnosis >> External Pages >> Different car >> Section 342 (Lighting System) >> Repair Instructions >> Headlamp Aiming (Visual Method) >> Aiming Procedure

Aiming Procedure

WARNING: This page is about a different car, the 2007 Cadillac XLR. However, it is still accessible from the selected car via links, so may be relevant.
  1. Open the hood.
    2. Fig 1: View Of Headlamp Aiming Screen
    GM1757122Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: DO NOT cover the headlamp; this may cause excessive heat build up.
  2. Turn on the low beam headlamps and block the light from projecting onto the screen from the passenger side headlamp.
  3. Inspect the vertical aim.
  4. Use the vertical adjusting screw to align the top edge of the high intensity gradient line to the horizontal centerline (2), within the range of 51 mm (2 in) above (6) to 64 mm (2.5 in) below (5) the lamp centerline.
  5. Repeat the aiming procedure for the passenger side headlamp while blocking the light from projecting onto the screen from the driver side headlamp.
  6. Turn OFF the headlamps.
  7. Close the hood.
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