Fuel

For diesel engine vehicles, see “Fuel for Diesel Engines” in the Duramax Diesel Supplement.

For Vehicles with gasoline engines, please read this.

See also:

Third Row Seats
The third row seatbacks can be folded forward, and the seats can be removed. To fold the third row seatback: 1. Remove anything on or under the seat. 2. Disconnect the rear safety belt mini-lat ...

Manual Reclining Seatbacks
WARNING You can lose control of the vehicle if you try to adjust a manual driver seat while the vehicle is moving. The sudden movement could startle and confuse you, or make you push a pedal when you ...

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...