brake BUICK ENCORE GX 2020 Service Manual

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14018934) - 2020 - CRC - 2/27/20
Driving and Operating 255
The indicator light for both systems
is in the instrument cluster. This
light will:
.Flash when TCS is limiting
wheel spin.
. Flash when StabiliTrak/ESC is
activated.
. Turn on and stay on when either
system is not working.
If either system fails to turn on or to
activate, a message displays in the
Driver Information Center (DIC), and
dcomes on and stays on to
indicate that the system is inactive
and is not assisting the driver in
maintaining control. The vehicle is
safe to drive, but driving should be
adjusted accordingly.
If
dcomes on and stays on:
1. Stop the vehicle. 2. Turn the engine off and wait
15 seconds.
3. Start the engine.
Drive the vehicle. If
dcomes on and
stays on, the vehicle may need
more time to diagnose the problem.
If the condition persists, see your
dealer.
Turning the Systems Off
and On
Caution
Do not repeatedly brake or
accelerate heavily when TCS is
off. The vehicle driveline could be
damaged.
To turn off only TCS, press and
release
g. The traction off lighti
illuminates in the instrument cluster.
To turn TCS on again, press and
release
g. The traction off lightiin
the instrument cluster will turn off.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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256 Driving and Operating
If TCS is limiting wheel spin wheng
is pressed, the system will not turn
off until the wheels stop spinning.
To turn off both TCS and StabiliTrak/
ESC, press and hold
gg until the
traction off light
iand StabiliTrak/
ESC OFF light
gilluminate and stay
on in the instrument cluster.
To turn TCS and StabiliTrak/ESC on
again, press and release
g. The
traction off light
iand StabiliTrak/
ESC OFF light
gin the instrument
cluster turn off.
Adding accessories can affect the
vehicle performance. See
Accessories and Modifications
0 305
Cruise Control
The cruise control lets the vehicle
maintain a speed of about 40 km/h
(25 mph) or more without keeping
your foot on the accelerator. Cruise
control does not work at speeds
below 40 km/h (25 mph).
{Warning
Cruise control can be dangerous
where you cannot drive safely at
a steady speed. Do not use
cruise control on winding roads or
in heavy traffic.
Cruise control can be dangerous
on slippery roads. On such roads,
fast changes in tire traction can
cause excessive wheel slip, and
you could lose control. Do not use
cruise control on slippery roads. With the Traction Control System
(TCS) or StabiliTrak/Electronic
Stability Control (ESC), the system
may begin to limit wheel spin while
you are using cruise control. If this
happens, the cruise control will
automatically disengage. See
Traction Control/Electronic Stability
Control
0254. If a collision alert
occurs when cruise control is
activated, cruise control is
disengaged. See Forward Collision
Alert (FCA) System 0278. When
road conditions allow you to safely
use it again, cruise control can be
turned back on.
Cruise control will disengage if
either TCS or StabiliTrak/ESC is
turned off.
If the brakes are applied, cruise
control disengages.
If equipped with Adaptive Cruise
Control (ACC), the cruise control
system may automatically brake to
slow the vehicle down to maintain
set following gap between you and
the vehicle in front of you or while
navigating a sharp turn.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14018934) - 2020 - CRC - 2/27/20
Driving and Operating 257
5:Press to turn the cruise control
system on and off. A white indicator
comes on in the instrument cluster
when cruise is turned on.
*: Press to disengage cruise
control without erasing the set
speed from memory.
+RES : If there is a set speed in
memory, press up briefly to resume
that speed or press and hold to
accelerate. If cruise control is
already active, use to increase
vehicle speed. −SET :
Press down briefly to set the
speed and activate cruise control.
If cruise control is already active,
use to decrease vehicle speed.
Setting Cruise Control
If
5is on when not in use, −SET or
+RES could get bumped and go into
cruise when not desired. Keep
5off
when cruise is not being used.
To set a speed:
1. Press
5to turn the cruise
system on.
2. Get to the speed desired.
3. Press down and release −SET . The desired set speed
briefly appears in the
instrument cluster.
4. Remove your foot from the accelerator pedal.
The cruise control indicator on the
instrument cluster turns green after
cruise control has been set to the
desired speed. See Instrument
Cluster 0107. Resuming a Set Speed
If the cruise control is set at a
desired speed and then the brakes
are applied or
*is pressed, the
cruise control is disengaged without
erasing the set speed from memory.
Once the vehicle speed reaches
about 40 km/h (25 mph) or more,
press +RES up briefly. The vehicle
returns to the previous set speed.
Increasing Speed While Using
Cruise Control
If the cruise control system is
already activated:
. Press and hold +RES up until
the vehicle accelerates to the
desired speed, then release it.
. To increase the speed in small
increments, press +RES up
briefly. For each press, the
vehicle goes about 1 km/h
(1 mph) faster.
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.

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14018934) - 2020 - CRC - 2/27/20
258 Driving and Operating
Reducing Speed While Using
Cruise Control
If the cruise control system is
already activated:
.Press and hold −SET down until
the desired lower speed is
reached, then release it.
. To slow down in small
increments, press −SET down
briefly. For each press, the
vehicle goes about 1 km/h
(1 mph) slower.
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.
Passing Another Vehicle While
Using Cruise Control
Use the accelerator pedal to
increase the vehicle speed. When
you take your foot off the pedal, the
vehicle will slow down to the
previous set cruise speed. While
pressing the accelerator pedal or
shortly following the release to
override cruise control, pressing −SET down briefly will result in
cruise control set to the current
vehicle speed.
Using Cruise Control on Hills
How well the cruise control works
on hills depends upon the vehicle
speed, load, and the steepness of
the hills. When going up steep hills,
you might have to step on the
accelerator pedal to maintain the
vehicle speed. When going
downhill, you might have to brake or
shift to a lower gear to keep your
speed down. If the brake pedal is
applied, cruise control will
disengage.
Ending Cruise Control
There are four ways to end cruise
control:
.
Step lightly on the brake pedal.
. Press
*.
. Shift the transmission to
N (Neutral).
. To turn off cruise control,
press
5. Erasing Speed Memory
The cruise control set speed is
erased from memory if
5is pressed
or if the ignition is turned off.
Adaptive Cruise Control
If equipped, Adaptive Cruise Control
(ACC) allows the cruise control set
speed and following gap to be
selected. Read this entire section
before using this system. The
following gap is the following time
between your vehicle and a vehicle
detected directly ahead in your path,
moving in the same direction. If no
vehicle is detected in your path,
ACC works like regular cruise
control. ACC uses a windshield
mounted front camera sensor.
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 the vehicle
speed when the Traction Control
System (TCS) or StabiliTrak/
Electronic Stability Control (ESC)
system activates, ACC may

Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 259
automatically disengage. See
Traction Control/Electronic Stability
Control0254. When road
conditions allow ACC to be safely
used, ACC can be turned back on.
Disabling the TCS or StabiliTrak/
ESC system will disengage and
prevent engagement of ACC.
ACC may operate differently in a
sharp curve. It may reduce the
vehicle speed if the curve is too
sharp.
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
(Continued)
Warning (Continued)
you are following. This can occur
when vehicles suddenly slow or
stop ahead, or enter your lane.
Also see“Alerting the Driver” later
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 0226
{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 camera sensor
is blocked by snow, ice,
or dirt. The system may not
detect a vehicle ahead.
Keep the windshield and
headlamps clean.
(Continued)
Warning (Continued)
.When visibility is poor due
to rain, snow, fog, dirt,
insect residue, or dust;
when other foreign objects
obscure the camera’s view;
or when the vehicle in front
or oncoming traffic causes
additional environmental
obstructions, such as road
spray. ACC performance is
limited under these
conditions.
. On slippery roads where
fast changes in tire traction
can cause excessive
wheel slip.
. With extremely heavy cargo
loaded in the cargo area or
rear seat.
. When towing a trailer.

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-
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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-
14018934) - 2020 - CRC - 2/27/20
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-
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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.