Preparation Procedure
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
Horizontal aim is not adjustable on this vehicle. Vertical aim is adjusted by an adjusting screw located on the bottom rear of the fog lamp. Prior to aiming the fog lamps, perform the following steps:
- Completely assemble all of the components on the vehicle.
- Park the vehicle on a level surface.
- Stop all unnecessary operations or work on the vehicle that affect the vehicle trim.
- Close the doors and ensure that the vehicle has no load other than the driver.
- Stabilize the suspension by rocking the vehicle sideways.
- Ensure that the fuel level is 1/2 full.
- Ensure that the tires are inflated to the proper pressure.
- Ensure that the driver or a similar weight, approximately 75 kg (165 lb), is in the vehicle driver seat.