Pontiac 1997 Grand Am Owner's Manual page 161

ETS
OFF
When the system is on and
the parking brake is fully
released, this warning light
will come on to let you
know if there's a problem
with the system. See
"Enhanced Traction System
Warning Light" in the
Index. When this warning
light is on, the system will
not limit wheel spin. Adjust
your driving accordingly.
To limit wheel spin, especially in slippery road
conditions, you should always leave the Enhanced
Traction System on. But you can turn the system off if
you ever need to. (You should turn the system off if your
vehicle ever gets stuck in sand, mud, ice or snow. See
"Rocking Your Vehicle" in the Index.)
To turn the system on or off,
press the button on the shift
lever knob.
When you turn the system off, the Enhanced Traction
System warning light will come on and stay on. If the
Enhanced Traction System is limiting wheel spin when
you press the button to turn the system off, the warning
light will come on -- but the system won't turn off right
away. It will wait until there's no longer a current need
to limit wheel spin.
You can turn the system back on at any time by pressing
the button again. The Enhanced Traction System
warning light should go off.
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