Buick 2007 Rendezvous Owner's Manual page 182

ON: Move the switch to this position to turn the
cruise control system on.
R/A: Move the switch to this position to resume a
set speed or to accelerate.
SET: Press this button, located at the end of the
lever, to set a speed.
OFF: This position turns the cruise control system
off and cancels memory of a set speed.
182
The cruise controls are
located on the end of
the turn signal/
multifunction lever.
CAUTION:
{
Cruise control can be dangerous where
you cannot drive safely at a steady speed.
So, do not use your cruise control on
winding roads or in heavy traffic.
Cruise control can be dangerous on
slippery roads. On such roads, fast
changes in tire traction can cause
excessive wheel slip, and you could lose
control. Do not use cruise control on
slippery roads.
If your vehicle is in cruise control when the
traction control system begins to limit wheel spin,
the cruise control will automatically disengage.
See Traction Control System (TCS) on page 310.
When road conditions allow you to safely use
it again, you may turn the cruise control back on.