Buick 2002 Regal Owner's Manual page 185

If your vehicle is in cruise control when the traction
control system begins to limit wheel spin, the cruise
control will automatically disengage. When road
conditions allow you to safely use it again, you may
reengage the cruise control. See "Cruise Control" in
the Index.
See "Traction Control System Warning Light" in the
Index. When this warning light is on, the system will not
limit wheel spin. Adjust your driving accordingly.
The traction control system automatically comes on
whenever you start your vehicle. To limit wheel spin,
especially in slippery road conditions, you should
always leave the system on. But you can turn the
traction control system off if you ever need to. You
should turn the system off if your vehicle ever gets stuck
in sand, mud or snow and rocking the vehicle is
required. See "Rocking Your Vehicle" in the Index.
4-10
This light should come
on briefly when you start
the engine. If it stays on
or comes on while you
are driving, there's a
problem with your
traction control system.
The traction control system warning light will come on
and stay on.
You can turn the system back on at any time by pressing
the button again. The traction control system warning
light should go off.
To turn the system off, press
the TRACTION button on
the panel located directly
behind your automatic
transaxle shift lever.