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 ...

Folding the Seatback
To fold the second row seatbacks: 1. Remove anything on or under the seat. 2. Place the armrest in the upright position, and unfasten the safety belt. 3. Pull forward on the reclining seatback stra ...

Safety
GM is aggressive in promoting the benefits of OnStar 8.0. New-truck buyers get a one-year subscription to the Safe and Sound Plan, after which owners can subscribe annually. If an airbag deploys, ...