See also:

Weatherstrips
Apply silicone grease on weatherstrips to make them last longer, seal better, and not stick or squeak. See Recommended Fluids and Lubricants on page 11‑12. ...

General Information
This maintenance section applies to vehicles with a gasoline engine. For diesel engine vehicles, see the maintenance schedule section in the Duramax Diesel Supplement. Your vehicle is an important in ...

All-Wheel Drive
It is not necessary to check the all-wheel drive lubricant levels. A fluid leak is the only reason for fluid loss. If a leak occurs, take the vehicle to the dealer as soon as possible. ...