GMC 2008 Envoy - Manual (Page 145)

Headlamp Washer
Your vehicle may have a
headlamp washer system.
The button to operate
this feature is located on
the instrument panel
and functions separately
from your other washer
systems.
To wash your headlamps, press the headlamp washer
button briefly and release to activate the system.
Cruise Control
Your vehicle has cruise
control. The controls are
located on the end of the
turn signal/multifunction
lever.
R
(On): Move the switch to this position to turn the
cruise control system on.
S
(Resume/Accelerate): Move the switch to this
position to resume a set speed or to accelerate.
T
(Set): Press this button, located at the end of the
lever, to set a speed.
9 (Off): Move the switch to this position to turn the
cruise control system off and cancel memory of a
set speed.
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