Chevrolet 2010 Impala Owner's Manual page 175

If the traction control system is manually turned off, this
light comes on and the TRACTION CONTROL OFF
message appears on the DIC.
See
information.
This light can come on after the vehicle is first driven
and the STABILITRAK NOT READY message appears
in the Driver Information Center (DIC). See
information.
and
for more
This light comes on
briefly while the engine
is started. If it does not,
have the vehicle serviced
by your dealer. If the
system is working
normally the indicator
light will then go off.
for more
If the light stays on, or comes on while driving a
SERVICE STABILITRAK message appears in the
DIC. This indicates that there may be a problem with
the Electronic Stability Control (ESC) system and the
vehicle may need service. When this warning light is on
and the SERVICE STABILITRAK message appears on
the DIC, the ESC system does not assist in controlling
the vehicle.
When the system is active, the light flashes while the
system is assisting in controlling the vehicle.
See
and
more information.
for
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