Buick 2004 Park Avenue Owner's Manual page 128

If your vehicle is in cruise control when the optional
traction control system begins to limit wheel spin, the
cruise control will automatically disengage. See Traction
Control System (TCS) on page 4-9. When road
conditions allow you to safely use it again, you may turn
the cruise control back on.
Setting Cruise Control
CAUTION:
{
If you leave your cruise control on when you
are not using cruise, you might hit a button
and go into cruise when you do not want to.
You could be startled and even lose control.
Keep the cruise control switch off until you
want to use cruise control.
3-10
2. Get up to the speed you want.
3. Push in the SET button at the end of the turn signal
lever and release it. The CRUISE light on the
instrument panel cluster will come on.
4. Take your foot off the accelerator pedal.
1. Move the cruise control
switch to ON.