Black plate (51,1)
GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 2/9/15
Driving and Operating
9-51
{
Warning
ACC has limited braking ability
and may not have time to slow
the vehicle down enough to avoid
a collision with another vehicle
you are following. This can occur
when vehicles suddenly slow or
stop ahead, or enter your lane.
Also see
“
Alerting the Driver
”
in
this section. Complete attention is
always required while driving and
you should be ready to take
action and apply the brakes. See
Defensive Driving on page 9-3
.
{
Warning
ACC will not detect or brake for
children, pedestrians, animals,
or other objects.
Do not use ACC when:
.
On winding and hilly roads or
when the sensors are
blocked by snow, ice, or dirt.
The system may not detect a
vehicle ahead. Keep the
entire front of the vehicle
clean.
.
Visibility is low, such as in
fog, rain, or snow conditions.
ACC performance is limited
under these conditions.
.
On slippery roads where fast
changes in tire traction can
cause excessive wheel slip.
5
(On/Off):
Press to turn the
system on or off. The indicator turns
white on the instrument cluster
when ACC is turned on.
SET
–
(Set/Coast):
Press briefly to
set the speed and activate ACC.
If cruise control is already active,
use to decrease vehicle speed.
+RES (Resume/Accelerate):
Press briefly to resume the previous
set speed or hold to accelerate.
If ACC is already active, use to
increase vehicle speed.