For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

Vehicle Care
California Proposition 65 WarningExit Lighting
The headlamps, taillamps, parking lamps, back-up lamps, and license plate lamps
come on at night, or in areas with limited lighting, when the key is removed from
the ignition.
The dome lamps also come on when the key is removed from the ignition. The exterior
lights and dome lamps remain on a ...
Wipers and Washers
Specifications
Wiper/Washer Schematics
Windshield Wiper and Washer Switch Replacement
Preliminary Procedure
Remove the steering column trim covers. Refer to Steering Column Lower Trim
Cover Replacement.
Windshield Wiper and Washer Switch
Procedure
Disconnect any elect ...
Specifications
Front Door (Diesel)
65 mm
83 mm
Front Door (Diesel)
60 mm
87 mm
Rear Compartment Lid (Diesel)
122 mm
32 mm
Rear Compartment Lid (Ecoline)
162 mm
32 mm
...