Cruise Control (If Equipped) - GMC 1999 Suburban Owner's Manual

To wash the window, push in on the switch. Window
washer fluid will continue to spray until the switch is
released. The wiper will continue with three more wipes
and then return to the setting that was chosen before the
lever was pushed.
The rear window washer uses the same fluid bottle as
the front windshield washer. If the fluid level is low in
the washer fluid bottle, you may not be able to wash
your rear window. If you can wash your windshield, but
not your rear window, check the fluid level.

Cruise Control (If Equipped)

With cruise control, you can
maintain a speed of about
25 mph (40 km/h) or more
without keeping your foot
on the accelerator.
This can really help on long trips. Cruise control does
not work at speeds below 25 mph (40 km/h).
When you apply your brakes, cruise control shuts off.
CAUTION:
D
Cruise control can be dangerous where you
can't drive safely at a steady speed. So,
don't use your cruise control on winding
roads or in heavy traffic.
D
Cruise control can be dangerous on
slippery roads. On such roads, fast changes
in tire traction can cause needless wheel
spinning, and you could lose control. Don't
use cruise control on slippery roads.
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