See also:

Portable Audio Devices
This vehicle may have an auxiliary input located on the radio faceplate and a USB port located in the center console or on the instrument panel. External devices such as an iPod®, laptop computer, ...

Engine Compartment Fuse Block
If the vehicle has a diesel engine, see the Duramax Diesel supplement for more information. If the vehicle is a hybrid, see the hybrid supplement for more information. The Engine Compartment Fuse Bl ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehic ...