Add-On Electrical Equipment
Notice: Do not add anything electrical to the vehicle unless you check with your dealer first. Some electrical equipment can damage the vehicle and the damage would not be covered by the vehicle's warranty. Some add-on electrical equipment can keep other components from working as they should. Add-on equipment can drain the vehicle's 12&-volt battery, even if the vehicle is not operating.
The vehicle has an airbag system. Before attempting to add anything electrical to the vehicle, see Servicing the Airbag-Equipped Vehicle on page 3‑32 and Adding Equipment to the Airbag-Equipped Vehicle on page 3‑33.
See also:
Power Reclining Seatbacks
To adjust a power seatback, if available:
○ Tilt the top of the control rearward to recline.
○ Tilt the top of the control forward to raise. ...
Manual Liftgate
To unlock the liftgate, press the power door lock switch or press on the Remote Keyless Entry (RKE) transmitter twice.
See Remote Keyless Entry (RKE) System Operation on page 2‑3.
To open the ...
Engine Overheating
If the vehicle has the Duramax® Diesel engine, see the Duramax Diesel Supplement for more information.
The vehicle has several indicators to warn of engine overheating.
There is a coolant temperatu ...





