GMC Sierra

GMC Sierra

GMC Sierra

See also:

Driving on Grades
Reduce speed and shift to a lower gear before starting down a long or steep downgrade. If the transmission is not shifted down, the brakes might get hot and no longer work well. Vehicles can tow in D ...

Maintenance When Trailer Towing
The vehicle needs service more often when pulling a trailer. See this manual's Maintenance Schedule or Index for more information. Things that are especially important in trailer operation are ...

Door Locks
To lock or unlock a door manually: • From the inside use the door lock knob on the window sill. • From the outside turn the key toward the front or rear of the vehicle, or press the or but ...