Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
218
Driving and Operating
.
To decrease the vehicle speed in larger
increments, hold SET
−
. While holding
SET
−
, the vehicle speed decreases to the
next 5 km/h (5 mph) step, then continues
to decrease by 5 km/h (5 mph) at a time.
The set speed can also be decreased while
the vehicle is stopped.
.
If stopped with the brake applied, press
or hold SET
−
until the desired set speed is
displayed.
Selecting the Follow Distance
When a slower moving vehicle is detected
ahead within the selected following gap,
ACC will adjust the vehicle's speed and
attempt to maintain the follow distance gap
selected.
Press
3
on the steering wheel to adjust
the following gap. Each press cycles the gap
button through three settings: Far, Medium,
or Near. When pressed, the current gap
setting displays briefly on the instrument
cluster and HUD (if equipped). The gap
setting will be maintained until it is
changed.
Since each gap setting corresponds to a
following time (Far, Medium, or Near), the
following distance will vary based on vehicle
speed. The faster the vehicle speed, the
further back your vehicle will follow a
vehicle detected ahead. Consider traffic and
weather conditions when selecting the
following gap. The range of selectable gaps
may not be appropriate for all drivers and
driving conditions.
Changing the gap setting automatically
changes the alert timing sensitivity (Far,
Medium, or Near) for the Forward Collision
Alert (FCA) feature. See
Alerting the Driver
If ACC is engaged, driver action may be
required when ACC cannot apply sufficient
braking because of approaching a vehicle
too rapidly.
When this condition occurs, the collision
alert symbol will flash on the windshield.
Either eight beeps will sound from the front,
or both sides of the Safety Alert Seat will
pulse five times. See
“
Collision/Detection
Systems
”
under
.
See
Approaching and Following a Vehicle
The vehicle ahead indicator is in the
instrument cluster and HUD display (if
equipped).
The vehicle ahead indicator only displays
when a vehicle is detected in your vehicle
’
s
path moving in the same direction.
If this indicator is not displaying, ACC will
not respond to or brake to vehicles ahead.
ACC automatically slows the vehicle down
and adjusts vehicle speed to follow the
vehicle in front at the selected follow gap.
The vehicle speed increases or decreases to
follow the vehicle in front of you, but will
not exceed the set speed. It may apply
limited braking, if necessary. When braking
is active, the brake lamps will come on. The