Air Bag Readiness Light; Passenger Air Bag Status Indicator - GMC 2003 Yukon Owner's Manual

If the driver's belt is already buckled, neither the chime
nor the light will come on.

Air Bag Readiness Light

There is an air bag readiness light on the instrument
panel cluster, which shows the air bag symbol.
The system checks the air bag's electrical system for
malfunctions. The light tells you if there is an electrical
problem. The system check includes the air bag
sensors, the air bag modules, the passenger sensing
system (if equipped), the wiring and the crash sensing
and diagnostic module. For more information on the
air bag system, see Air Bag Systems on page 1-70 .
3-40
The safety belt light will
also come on and stay on
for several seconds,
then it will flash for
several more.
If the air bag readiness light stays on after you start the
vehicle or comes on when you are driving, your air
bag system may not work properly. Have your vehicle
serviced right away.

Passenger Air Bag Status Indicator

If your vehicle has the passenger sensing system
your rearview mirror will have a passenger air bag status
indicator.
This light will come on
when you start your
vehicle, and it will flash for
a few seconds. Then
the light should go out.
This means the system is
ready.