GMC Hummer H3 2008 Owner's Handbook Manual page 41

Instrumentation and Controls
CAUTION
If the air bag light stays on or
comes on while you are driving,
there may be a problem with
this system. The air bags may
not inflate in a crash, or they
may inflate even when there
hasn't been a crash. To avoid
injury to yourself or others,
have the vehicle serviced right
away.
See Section 2 for more information
on the air bag system.
. . . 40
Passenger Air Bag On/Off
Indicator
This light is located on the instru-
ment panel.
See "Passenger Sensing System" in
Section 2.
Security System Light
This light should come on briefly
as you start the engine, as a check
to show you it is working properly.
If it doesn't come on, then have it
fixed so it will be ready to warn
you if there is a problem.
®
See "PASS-Key III Plus System" in
Section 3 for information on the
®
PASS-Key system.
Also, see "Theft Deterrent System"
in Section 3 for more information
about this light.