Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
Driving and Operating
215
If a vehicle is detected in your path, ACC can
apply acceleration or limited, moderate
braking to maintain the selected following
gap. To disengage ACC, apply the brake.
If ACC is controlling your vehicle speed
when the Traction Control System (TCS) or
StabiliTrak/Electronic Stability Control (ESC)
system activates, the ACC may automatically
disengage. See
. When road
conditions allow ACC to be safely used, the
ACC can be turned back on.
ACC will not engage if the TCS or
StabiliTrak/ESC system is disabled.
ACC can reduce the need for you to
frequently brake and accelerate, especially
when used on expressways, freeways, and
interstate highways. When used on other
roads, you may need to take over the
control of braking or acceleration more
often.
{
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
(Continued)
Warning (Continued)
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
{
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.
]
:
Press to turn the system on or off. The
indicator turns white on the instrument
cluster when ACC is turned on.
RES+ :
Press briefly to resume the previous
set speed or to increase vehicle speed if ACC
is already activated. To increase speed by
about 1 km/h (1 mph), press RES+ briefly. To
increase speed to the next 5 km/h (5 mph)
mark on the speedometer, hold RES+.
SET
–
:
Press briefly to set the speed and
activate ACC or to decrease vehicle speed if
ACC is already activated. To decrease speed
by about 1 km/h (1 mph), press SET
–
briefly.
To decrease speed to the next 5 km/h
(5 mph) mark on the speedometer, hold
SET
–
.