Vehicle Security
This vehicle has theft-deterrent features; however, they do not make it impossible to steal.
See also:
New for 2010
GM has dropped the long-running 6.0-liter V-8 engine from the Sierra lineup,
leaving the powerful 6.2-liter V-8 for heavy towing needs. The rest of the
Sierra's eight-cylinder lineup benefits from ...
Battery
The battery supplies power to start the engine and operate any additional electrical accessories.
• To avoid break-down or failure to start the vehicle, maintain a battery with full cranking power. ...
Lap-Shoulder Belt
All seating positions in the vehicle have a lap-shoulder belt.
If you are using a rear seating position with a detachable safety belt and the safety belt is not attached, see “Returning the Seat to ...