Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.
See also:
XM Categories
XM channels are organized in categories.
Removing or Adding Categories
Channels in a category that have been removed can still be accessed by using
the SEEK or SEEK buttons, or the TUNE knob.
...
Trip/Fuel Display Menu Items
(Trip/Fuel): Press to display
the following menu items: ...
Power Lumbar
To adjust the lumbar support,
if equipped:
- Press and hold the top of the
control (B) to increase support to
the top of the seatback and
decrease support to the bottom
of the seatback.
- ...






