BUICK ENCORE GX 2020 Owner's Manual

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14018934) - 2020 - CRC - 2/27/20
260 Driving and Operating
5:Press to turn the system on or
off. The indicator turns white on the
instrument cluster when ACC is
turned on.
RES+ : Press the control up 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+ up briefly. To increase
speed to the next 5 km/h (5 mph)
mark on the speedometer, hold
RES+.
SET− :Press the control down
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–
down briefly.
To decrease speed to the next
5 km/h (5 mph) mark on the
speedometer, hold SET–.
*: Press to disengage ACC
without erasing the selected set
speed.
[: Press to select a following gap
setting for ACC of Far, Medium,
or Near.
The speedometer reading can be
displayed in either English or metric
units. See Instrument Cluster 0107.
The increment value used depends
on the units displayed.
Switching Between ACC and
Regular Cruise Control
To switch between ACC and regular
cruise control, press and hold
**.
A Driver Information Display (DIC)
message displays. See Vehicle
Messages 0134.
ACC IndicatorRegular Cruise
Control Indicator
When ACC is engaged, a green
o
indicator will be lit on the instrument
cluster and the following gap will be
displayed. When the regular cruise
control is engaged, a green
J
indicator will be lit on the instrument
cluster; the following gap will not
display.
When the vehicle is turned on, the
cruise control mode will be set to
the last mode used before the
vehicle was turned off.
{Warning
Always check the cruise control
indicator on the instrument cluster
to determine which mode cruise (Continued)

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 261
Warning (Continued)
control is in before using the
feature. If ACC is not active, the
vehicle will not automatically
brake for other vehicles, which
could cause a crash if the brakes
are not applied manually. You and
others could be seriously injured
or killed.
Setting Adaptive Cruise
Control
If5is on when not in use, it could
get pressed and go into ACC when
not desired. Keep
5off when cruise
is not being used.
Select the set speed desired for
ACC. This is the vehicle speed
when no vehicle is detected in
its path.
While the vehicle is moving, ACC
will not set at a speed less than
5 km/h (3 mph), although it can be
resumed. While the vehicle is moving, ACC
will not set at a speed less than
25 km/h (15 mph), although it can be
resumed when driving at lower
speeds. The minimum allowable set
speed is 25 km/h (15 mph).
To set ACC while moving:
1. Press
5.
2. Get up to the desired speed.
3. Press SET– down and release.
4. Remove your foot from the accelerator.
After ACC is set, it may immediately
apply the brakes if a vehicle ahead
is detected closer than the selected
following gap.
ACC can also be set while the
vehicle is stopped and the brake
pedal is applied. The ACC indicator displays on the
instrument cluster. When ACC is
turned on, the indicator will be lit
white. When ACC is engaged, the
indicator will turn green.
Be mindful of speed limits,
surrounding traffic speeds, and
weather conditions when selecting
the set speed.
Resuming a Set Speed
If the ACC is set at a desired speed
and then the brakes are applied,
ACC is disengaged without erasing
the set speed from memory.
To begin using ACC again, press
RES+ up briefly.
.
If the vehicle is moving more
than 5 km/h (3 mph), it returns to
the previous set speed.
. If the vehicle is stopped with
the brake pedal applied, press
RES+ up and release the brake
pedal. ACC will hold the vehicle
until RES+ or the accelerator
pedal is pressed.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14018934) - 2020 - CRC - 2/27/20
262 Driving and Operating
A green ACC indicator and the set
speed display on the instrument
cluster. The vehicle ahead indicator
may be flashing if a vehicle ahead
was present and moved. See
“Approaching and Following a
Vehicle”later in this section.
Once ACC has resumed, the
vehicle speed will increase to the
set speed under the following
conditions:
. There is no vehicle ahead.
. The vehicle ahead is beyond the
selected following gap.
. The vehicle speed is not being
limited because of a sharp turn.
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. Briefly press down
and release SET– and release
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. While overridden,
the ACC indicator will turn blue
on the instrument cluster and
Head-Up Display (HUD),
if equipped.
When the accelerator pedal is
pressed, ACC will not brake
because it is overridden. The
ACC indicator will turn blue on
the instrument cluster.
. Press and hold RES+ up until
the desired set speed is
displayed, then release it.
. To increase vehicle speed in
smaller increments, press RES+
up briefly. For each press, the
vehicle goes about 1 km/h
(1 mph) faster.
. To increase vehicle speed in
larger increments, hold RES+
up. While holding RES+, the
vehicle speed increases to the
next 5 km/h (5 mph) step, then
continues to increase by 5 km/h
(5 mph) at a time. The set speed can also be
increased while the vehicle is
stopped.
.
If stopped with the brake pedal
applied, press RES+ up until the
desired set speed is displayed.
. If ACC is holding the vehicle at a
stop and there is another vehicle
directly ahead, pressing RES+
up will increase the set speed.
. Pressing RES+ up when there is
no longer a vehicle ahead or the
vehicle ahead is pulling away
and the brake is not applied 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.
Reducing Speed While ACC Is
at a Set Speed
If ACC is already activated, do one
of the following:

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 263
.Use the brake to get to the
desired lower speed. Release
the brake and press SET– down.
The vehicle will now cruise at
the lower speed.
. Press and hold SET– down until
the desired lower speed is
reached, then release it.
. To decrease the vehicle speed in
smaller increments, press SET–
down briefly. For each press, the
vehicle goes about 1 km/h
(1 mph) slower.
. To decrease the vehicle speed in
larger increments, hold SET–
down. 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–
down until the desired set speed
is displayed.Selecting the Follow
Distance Gap
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
[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
Forward
Collision Alert (FCA) System 0278.
The gap setting used by ACC is
independent to the alert timing
sensitivity (Far, Medium, or Near)
used by the Forward Collision Alert
(FCA) feature. Pressing
[while
ACC is active will only modify the
gap setting used by ACC without
changing the alert timing sensitivity
used by FCA. Pressing
[while
ACC is not active will only modify
the alert timing sensitivity used by
FCA without modifying the gap
setting used by ACC. See Forward
Collision Alert (FCA) System 0278.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14018934) - 2020 - CRC - 2/27/20
264 Driving and Operating
Alerting the Driver
With Head-Up Display ScreenClosed
With Head-Up DisplayScreen Open
Without Head-Up Display
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 red
collision alert symbol will flash on
the windshield or on the HUD,
if equipped. Eight beeps will sound
from the front.
See Defensive Driving 0226.
Approaching and Following a
Vehicle
The vehicle ahead indicator is in the
instrument cluster and HUD,
if equipped. It only displays when a
vehicle is detected in your vehicle’s
path moving in the same direction.
If this symbol is not displaying, ACC
will not respond to or brake for
vehicles ahead.
ACC automatically slows the vehicle
down and adjusts vehicle speed to
follow a detected vehicle ahead at
the selected following gap. The
vehicle speed increases or
decreases to follow a detected
vehicle in front of your vehicle.
When that vehicle is traveling
slower than your vehicle set speed,
it may apply limited braking,
if necessary. When braking is
active, the brake lamps will come
on. The automatic braking may feel
or sound different than if the brakes
were applied manually. This is
normal.
Passing a Vehicle While
Using ACC
If the set speed is high enough, and
the left turn signal is used to pass a
vehicle ahead in the selected

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 265
following gap, ACC may assist by
gradually accelerating the vehicle
prior to the lane change.
{Warning
When using ACC to pass a
vehicle or perform a lane change,
the following distance to the
vehicle being passed may be
reduced. ACC may not apply
sufficient acceleration or braking
when passing a vehicle or
performing a lane change. Always
be ready to manually accelerate
or brake to complete the pass or
lane change.
Stationary or Very
Slow-Moving Objects
{Warning
ACC may not detect and react to
stopped or slow-moving vehicles
ahead of you. For example, the
system may not brake for a(Continued)
Warning (Continued)
vehicle it has never detected
moving. This can occur in
stop-and-go traffic or when a
vehicle suddenly appears due to
a vehicle ahead changing lanes.
Your vehicle may not stop and
could cause a crash. Use caution
when using ACC. Your complete
attention is always required while
driving and you should be ready
to take action and apply the
brakes.
Irregular Objects
Affecting ACC
ACC may have difficulty detecting
the following objects:
.Vehicles in front of your vehicle
that have a rear aspect that is
low, small, or irregular
. An empty truck or trailer that has
no cargo in the cargo bed
. Vehicles with cargo extending
from the back end .
Non-standard shaped vehicles,
such as vehicle transport,
vehicles with a side car fitted,
or horse carriages
. Vehicles that are low to the road
surface
. Objects that are close to the
front of your vehicle
. Vehicles on which extremely
heavy cargo is loaded in the
cargo area or rear seatACC Automatically
Disengages
ACC may automatically disengage
and the driver will need to manually
apply the brakes to slow the
vehicle if:
.The front camera is blocked or
visibility is reduced.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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266 Driving and Operating
.The Traction Control System
(TCS) or StabiliTrak/ESC system
has activated or been disabled.
. There is a fault in the system.
. A DIC message displays to
indicate that ACC is temporarily
unavailable.
The ACC indicator will turn white
when ACC is no longer active.
In some cases, when ACC is
temporarily unavailable, regular
cruise control may be used. See
“Switching Between ACC and
Regular Cruise Control” in this
section. Always consider driving
conditions before using either cruise
control system.
Notification to Resume ACC
ACC will maintain a follow gap
behind a detected vehicle and slow
your vehicle to a stop behind that
vehicle.
If the stopped vehicle ahead has
driven away and ACC has not
resumed, the vehicle ahead indicator will flash as a reminder to
check traffic ahead before
proceeding.
When the vehicle ahead drives
away, ACC resumes automatically if
the stop was brief. If necessary,
press RES+ up or the accelerator
pedal to resume ACC. If stopped for
more than two minutes or if the
driver door is opened and the driver
seat belt is unbuckled, the ACC
automatically applies the Electric
Parking Brake (EPB) to hold the
vehicle. The EPB status light will
turn on. See
Electric Parking Brake
0 252. To release the EPB, press
the accelerator pedal.
A DIC warning message may
display indicating to shift to P (Park)
before exiting the vehicle. See
Vehicle Messages 0134.
{Warning
If ACC has stopped the vehicle,
and if ACC is disengaged, turned
off, or canceled, the vehicle will
(Continued)
Warning (Continued)
no longer be held at a stop. The
vehicle can move. When ACC is
holding the vehicle at a stop,
always be prepared to manually
apply the brakes.
{Warning
Leaving the vehicle without
placing it in P (Park) can be
dangerous. Do not leave the
vehicle while it is being held at a
stop by ACC. Always place the
vehicle in P (Park) and turn off
the ignition before leaving the
vehicle.
ACC Override
If using the accelerator pedal while
ACC is active, the ACC indicator
turns blue on the instrument cluster
indicating ACC braking will not

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 267
occur. ACC will resume operation
when the accelerator pedal is not
being pressed.
{Warning
The ACC will not automatically
apply the brakes if your foot is
resting on the accelerator pedal.
You could crash into a vehicle
ahead of you.
Curves in the Road
{Warning
On curves, ACC may not detect a
vehicle ahead in your lane. You
could be startled if the vehicle
accelerates up to the set speed,
especially when following a
vehicle exiting or entering exit
ramps. You could lose control of
the vehicle or crash. Do not use
ACC while driving on an entrance
or exit ramp. Always be ready to
use the brakes if necessary.
{Warning
On curves, ACC may respond to
a vehicle in another lane, or may
not have time to react to a vehicle
in your lane. You could crash into
a vehicle ahead of you, or lose
control of your vehicle. Give extra
attention in curves and be ready
to use the brakes if necessary.
Select an appropriate speed while
driving in curves.
ACC may operate differently in a
sharp curve. It may reduce the
vehicle speed if the curve is too
sharp.
When following a vehicle and
entering a curve, ACC may not
detect the vehicle ahead and
accelerate to the set speed. When
this happens, the vehicle ahead
indicator will not appear.
ACC may detect a vehicle that is
not in your lane and apply the
brakes.
ACC may occasionally provide an
alert and/or braking that is
considered unnecessary. It could
respond to vehicles in different
lanes or stationary objects when
entering or exiting a curve. This is
normal operation. The vehicle does
not need service.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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268 Driving and Operating
Other Vehicle Lane Changes
ACC will not detect a vehicle ahead
until it is completely in the lane. The
brakes may need to be manually
applied.
Objects Not Directly in Front of
Your Vehicle
The detection of objects in front of
the vehicle may not be possible if:
.The vehicle or object ahead is
not within your lane.
. The vehicle ahead is shifted, not
centered, or is shifted to one
side of the lane.
Driving in Narrow Lanes
Vehicles in adjacent traffic lanes or
roadside objects may be incorrectly
detected when located along the
roadway.
Do Not Use ACC on Hills and
When Towing a Trailer
Do not use ACC when driving on
steep hills or when towing a trailer.
ACC will not detect a vehicle in the
lane while driving on steep hills.
Disengaging ACC
There are three ways to
disengage ACC:
.Step lightly on the brake pedal.
. Press
*. .
Press
5.
Erasing Speed Memory
The ACC set speed is erased from
memory if
5is pressed or if the
ignition is turned off.
Weather Conditions
Affecting ACC
If the interior temperature is
extremely high, the instrument
cluster may indicate that ACC is
temporarily unavailable. This can be
caused by extreme hot weather
conditions with direct sunlight on the
front camera. ACC will return to
normal operation once the cabin
temperature is lower.
Conditions that are associated with
low visibility, such as fog, rain,
snow, or road spray, may limit ACC
performance. Water droplets from
rain or snow that remain on the
windshield may also limit ACC’s
ability to detect objects.

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Driving and Operating 269
{Warning
Camera visibility may be limited
and the ACC system may not
work properly if the windshield is
not clear. Do not use ACC if
moisture is present on the inside
of the windshield or the
windshield washer is used in cold
weather. Turn on the front
defroster and make sure the
windshield is clear before using
ACC. Before driving, check that
the windshield wipers are in good
condition and replace them
if worn.
Lighting Conditions
Affecting ACC
The ACC front camera can be
affected by poor lighting conditions,
and ACC may have limited
performance when:
.There are changes in brightness,
such as entering and exiting
tunnels, bridges, and
overpasses. .
Low sun angles cause the
camera to not detect objects,
or it is more difficult to detect
objects in the same traffic lane.
. Lighting is poor in the evening or
early morning
. There are multiple changes in
brightness or shadows along the
vehicle roadway.
. In a tunnel without the
headlamps on, or in a tunnel
when there is a vehicle in front
that does not have its
taillamps on.
. Subjected to strong light from
opposing lane traffic in the front
of the vehicle, such as
high-beam headlamps from
oncoming traffic.Accessory Installations and
Vehicle Modifications
Do not install or place any object
around the front camera windshield
area that would obstruct the front
camera view. Do not install objects on top of the
vehicle that overhang and obstruct
the front camera, such as a canoe,
kayak, or other items that can be
transported on a roof rack system.
See
Roof Rack System 096.
Do not modify the hood, headlamps,
or fog lamps, as this may limit the
camera’s ability to detect an object.
Cleaning the Sensing System
The camera sensor on the
windshield behind the rearview
mirror can become blocked by
snow, ice, dirt, mud, or debris. This
area needs to be cleaned for ACC
to operate properly.
The vehicle headlamps may need to
be cleaned due to dirt, snow, or ice.
Objects that are not illuminated
correctly may be difficult to detect.