Chevrolet Aveo 2007 Owner's Manual page 177

If the airbag readiness light stays on after you
start the vehicle or comes on or flashes when you
are driving, your airbag system may not work
properly. Have your vehicle serviced right away
by your dealer.
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.
CAUTION:
{
If the airbag readiness light stays on after
you start your vehicle, it means the airbag
system may not be working properly. The
airbags in your vehicle may not inflate in
a crash, or they could even inflate without
a crash. To help avoid injury to yourself
or others, have your vehicle serviced right
away if the airbag readiness light stays on
after you start your vehicle.
The airbag readiness light should flash for a few
seconds when you turn the ignition to ON. If the
light does not come on then, have it fixed so it will
be ready to warn you if there is a problem.
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