Sunroof Window Height and Opening Fit Adjustment (Crew Cab)

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Correct adjustment cannot be achieved if the sunroof window is closed from vent position.

Cycle the sunroof window from full open to closed position.

Fig 1: View Of Sunroof Window & Opening Fit

Courtesy of GENERAL MOTORS CORP.

NOTE: Do Not remove or lower headliner to access sunroof window screws.

Loosen the adjusting screws on the window.
Adjust the corners of the front window panel using the following guidelines:
- Adjust the front of the sunroof window to 0.0 mm - 1.0 mm (0.0 in - 0.04 in ) below the top surface of the roof panel.
- Adjust the rear ceneter line of the sunroof window to 1 mm to 2 mm (0.04 in to 0.08 in ) below the top surface of the roof panel.

CAUTION: Refer to Fastener Caution

Tighten the sunroof window adjustment screws.
Tighten: Tighten the sunroof window adjusting screws to 5 N.m (44 lb in).
Cycle sunroof window through all positions.
Inspect the sunroof window adjustment. Adjust if necessary.