Lamps
Properly working headlamps, taillamps, and brake lamps are important to see and be seen on the road.
- Signs that the headlamps need attention include dimming, failure to light, cracking, or damage.
The brake lamps need to be checked periodically to ensure that they light when braking.
- With a multi–point inspection, your dealer can check the lamps and note any concerns.
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.
...
Power Lumbar
A. Side Bolster Control
B. Lumbar Support Control
C. Seatback Bolster Control
To adjust the lumbar support,
if equipped:
- Press and hold the top of the
control (B) to increase support to
...
Tires
Every new GM vehicle has high-quality tires made by a leading tire manufacturer.
See the warranty manual for information regarding the tire warranty and where to
get service. For additional inform ...






