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Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 4/10/19
DRIVING AND OPERATING 199
Once ACC has resumed, if there is no
vehicle ahead, if the vehicle ahead is
beyond the selected following gap,
or if the vehicle has exited a sharp
curve, then the vehicle speed will
increase to the set speed.
Increasing Speed While ACC is at a
Set Speed
If ACC is already activated, do one of
the following:
.
Use the accelerator to get to the
higher speed. Move the
thumbwheel down toward SET– .
Release the control and the
accelerator pedal. The vehicle will
now cruise at the higher speed.
When the accelerator pedal is
pressed, ACC will not brake
because it is overridden. The ACC
indicator will turn blue on the
instrument panel and HUD,
if equipped. See Vehicle Messages
0 129.
.
Move the thumbwheel up toward
RES+ until the desired set speed
appears on the display, then
release it.
.
To increase vehicle speed in small
increments, move the thumbwheel
up toward RES+ to the first detent.
For each press, the vehicle goes
1 km/h (1 mph) faster.
.
To increase vehicle speed in larger
increments, move the thumbwheel
up toward RES+ to the second
detent. For each press, the vehicle
speed increases to the next 5 km/h
(5 mph) mark on the speedometer.
The set speed can also be increased
while the vehicle is stopped.
.
If stopped with the brake applied,
move the thumbwheel up toward
RES+ until the desired set speed is
displayed.
.
If ACC is holding the vehicle at a
stop and there is another vehicle
directly ahead, moving the
thumbwheel up toward RES+ will
increase the set speed. Moving the
thumbwheel up toward RES+ when
there is no longer a vehicle ahead
will cause the ACC to resume.
When it is determined that there is no
vehicle ahead or the vehicle ahead is
beyond the selected following gap,
then the vehicle speed will increase to
the set speed.
The speedometer reading can be
displayed in either English or metric
units. See Instrument Cluster 0 107.
The increment value used depends on
the units displayed.
Reducing Speed While ACC is at a
Set Speed
If ACC is already activated, do one of
the following:
.
Use the brake to get to the desired
lower speed. Release the brake and
move the thumbwheel down
toward SET– . The vehicle will
now cruise at the lower speed.
.
Hold the thumbwheel down
toward SET– until the desired
lower speed is reached, then
release it.
.
To decrease the vehicle speed in
smaller increments, move the
thumbwheel down toward SET− to
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