Headlamp Aiming: Notes

2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION Notes
WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

Two adjusting screws control the horizontal (2) and vertical (1) aiming of each headlamp assembly.

The hole in the radiator support for each headlamp assembly provides access to the recessed adjusting screw (2). Using a T15 TORX® head bit, turn the screws.

Adjust the headlamps to the specifications required by the state and/or the local authorities.

Fig 1: Two Adjusting Screws Controlling Horizontal & Vertical Aiming Of Each Headlamp Assembly
G01476322Courtesy of GENERAL MOTORS CORP.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.