All-Wheel Drive
Transfer Case
When to Check and Change Lubricant
The transfer case is filled with oil during manufacture, which then does not require changing. It is not necessary to regularly check the transfer case fluid unless there is a leak suspected or an unusual noise is heard. A fluid loss could indicate a problem. It is recommended to have the transfer case serviced at your dealer.
See also:
Sedan or Coupe
To lower one or both of the rear
seatbacks:
1. Pull forward on the tab, on the
outboard side of the seatback,
to unlock the seatback.
2. Fold the seatback down.
This allows access to the tr ...
Vehicle and Power Issues
OnStar services require a vehicle
electrical system, wireless service,
and GPS satellite technologies to be
available and operating for features
to function properly. These systems
may not o ...
3.5mm Auxiliary Input Jack
Connect a 3.5mm (1/8 in) cable to the 3.5mm auxiliary input jack to use a
portable audio player.
Playback of an audio device that is connected to the 3.5mm auxiliary input
jack can only be contro ...