Chevrolet 2001 Impala Owner's Manual page 38

The system checks the air bag electrical system for
malfunctions. The light tells you if there is an electrical
problem. See "Air Bag Readiness Light" in the Index
for more information.
1-26
There is an air bag
readiness light on the
instrument panel, which
shows the air bag symbol.
How the Air Bag Systems Work
Where are the air bags?
The driver's frontal air bag is in the middle of the
steering wheel.