2021 BUICK ENVISION brakes

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
Instruments and Controls 97
If the light comes on and stays on at start
up, there is a brake problem. Have the brake
system inspected right away.
If the light comes on while driving, pull off
the road and stop carefully. The brake pedal
might be harder to push, or the brake pedal
may go closer to the floor. It could take
longer to stop. If the light is still on, have
the vehicle towed for service. SeeTowing
the Vehicle 0304.
{Warning
The brake system might not be working
properly if the brake system warning
light is on. Driving with the brake system
warning light on can lead to a crash.
If the light is still on after the vehicle has
been pulled off the road and carefully
stopped, have the vehicle towed for
service.
Electric Parking Brake Light
MetricEnglish This light comes on when the parking brake
is applied. If the light continues flashing
after the parking brake is released, or while
driving, there is a problem with the Electric
Parking Brake system. A message may also
display in the Driver Information
Center (DIC).
If the light does not come on, or remains
flashing, see your dealer.
Service Electric Parking Brake
Light
This light should come on briefly when the
vehicle is turned on. If it does not come on,
have it fixed so it will be ready to warn if
there is a problem.
If this light stays on or comes on while
driving, there is a problem with the Electric
Parking Brake (EPB). Take the vehicle to a
dealer as soon as possible. In addition to the
parking brake, other safety functions that
utilize the EPB may also be degraded.
A message may also display in the Driver
Information Center (DIC). See
Electric Parking
Brake 0208.
Antilock Brake System (ABS)
Warning Light
This warning light should come on briefly
when the vehicle is turned on. If the light
does not come on, have it fixed so it will be
ready to warn if there is a problem.
If the light comes on while driving, safely
stop as soon as it is possible and turn off
the vehicle. Then turn on the vehicle again
to reset the system.
If the ABS warning light stays on, or comes
on again while driving, the vehicle needs
service. A chime may also sound when the
light stays on.
If the ABS warning light is the only light on,
the vehicle has regular brakes, but ABS is
not functioning.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
98 Instruments and Controls
If both the ABS warning light and the brake
system warning light are on, ABS is not
functioning and there is a problem with the
regular brakes. See your dealer for service.
SeeBrake System Warning Light 096.
All-Wheel-Drive Light
All-Wheel-Drive LightFront-Wheel-Drive
Light
If equipped, the corresponding light comes
on when an All-Wheel Drive (AWD) mode or
Front-Wheel-Drive mode is selected. See
Driver Mode Control 0212.
If the light turns amber, there may be a
malfunction. See your dealer.
Hill Descent Control Light
If equipped, the Hill Descent Control light
comes on when the system is ready for use.
When the light flashes, the system is active.
See Hill Descent Control (HDC) 0211.
Lane Keep Assist (LKA) Light
After the vehicle is started, this light turns
off and stays off if LKA has not been turned
on or is unavailable.
If equipped, this light is white if LKA is
turned on, but not ready to assist. This light
is green if LKA is turned on and is ready to
assist. LKA may assist by gently turning the
steering wheel if the vehicle approaches a
detected lane marking. The LKA light is
amber when assisting.
This light flashes amber as a Lane Departure
Warning (LDW) alert, to indicate that the
lane marking has been unintentionally
crossed.
LKA will not assist or alert if the turn signal
is active in the direction of lane departure,
or if LKA detects that you are accelerating,
braking, or actively steering.
See
Lane Keep Assist (LKA) 0238.
Automatic Emergency Braking
(AEB) Disabled Light
This indicator will display when Automatic
Emergency Braking or Front Pedestrian
Braking has been turned off or is currently
unavailable due to malfunction.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
108 Instruments and Controls
Metric
English
Performance View : This displays digital
speed, indicators from speed view along
with rpm reading, transmission positions,
and gear shift indicator (if equipped).
Care of the HUD
Clean the inside of the windshield to remove
any dirt or film that could reduce the
sharpness or clarity of the HUD image.
Clean the HUD lens with a soft cloth
sprayed with glass cleaner. Wipe the lens
gently, then dry it.
HUD Troubleshooting
If you cannot see the HUD image when the
ignition is on, check that:
.Nothing is covering the HUD lens.
.The HUD brightness setting is not too
dim or too bright.
.The HUD is adjusted to the proper height.
.Polarized sunglasses are not worn.
.The windshield and HUD lens are clean.
If the HUD image is not correct, contact
your dealer.
The windshield is part of the HUD system.
See Windshield Replacement 0270.
Vehicle Messages
Messages displayed on the Driver
Information Center (DIC) indicate the status
of the vehicle or some action that may be
needed to correct a condition. Multiple
messages may appear one after another.
The messages that do not require
immediate action can be acknowledged and
cleared by pressing the thumbwheel. The
messages that require immediate action
cannot be cleared until that action is
performed. All messages should be taken seriously;
clearing the message does not correct the
problem.
If a SERVICE message appears, see your
dealer.
Follow the instructions given in the
messages. The system displays messages
regarding the following topics:
.Service Messages
.Fluid Levels
.Vehicle Security
.Brakes
.Steering
.Ride Control Systems
.Driver Assistance Systems
.Cruise Control
.Lighting and Bulb Replacement
.Wiper/Washer Systems
.Doors and Windows
.Seat Belts
.Airbag Systems
.Engine and Transmission
.Tire Pressure
.Battery

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
Instruments and Controls 109
Engine Power Messages
REDUCED ACCELERATION DRIVE
WITH CARE
This message displays when the vehicle
propulsion power is reduced. A reduction in
propulsion power can affect the vehicle's
ability to accelerate. If this message is on,
but there is no observed reduction in
performance, proceed to your destination.
Under certain conditions, the performance
may be reduced the next time the vehicle is
driven. The vehicle may be driven while this
message is on, but maximum acceleration
and speed may be reduced. Anytime this
message stays on, or displays repeatedly,
the vehicle should be taken to your dealer
for service as soon as possible.
Under certain operating conditions,
propulsion will be disabled. Try restarting
after the ignition has been off for
two minutes.
Vehicle Speed Messages
SPEED LIMITED TO XXX KM/H (MPH)
This message shows that the vehicle speed
has been limited to the speed displayed. The
limited speed is a protection for variouspropulsion and vehicle systems, such as
lubrication, thermal, brakes, suspension,
Teen Driver if equipped, or tires.
Vehicle Personalization
The following are all possible vehicle
personalization features. Depending on the
vehicle, some may not be available.
For System, Apps, and Personal features and
functions, see
Settings0159.
To access the vehicle personalization menu: 1. Touch the Settings icon on the Home Page of the infotainment display.
2. Touch Vehicle to display a list of available options.
3. Touch to select the desired feature setting.
4. Touch
9orRto turn a feature off or on.
5. Touch
zto go to the top level of the
Settings menu.
The menu may contain the following:
Rear Seat Reminder
This allows for a chime and a message when
the rear door has been opened before or
during operation of the vehicle. Touch Off or On.
Buckle to Drive
This feature can prevent shifting out of Park
when the driver, and if applicable the front
passenger, seat belt is not buckled. See
Buckle To Drive
042.
Touch Off or On.
Climate and Air Quality
Touch and the following may display:
.Auto Fan Speed
.Air Quality Sensor
.Pollution Control
.Auto Cooled Seats
.Auto Heated Seats
.Auto Defog
.Auto Rear Defog
.Ionizer
Auto Fan Speed
This setting specifies the amount of airflow
when the climate control fan setting is
Auto Fan.
Touch Low, Medium, or High.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
110 Instruments and Controls
Air Quality Sensor
This allows for selection of air quality sensor
operation at high or low sensitivity.
Select Off, Low Sensitivity, or High
Sensitivity.
Pollution Control
When set to on, this turns on the
Recirculation Mode at low vehicle speeds
such as heavy traffic.
Touch Off or On.
Auto Cooled Seats
This setting automatically turns on and
regulates the ventilated seats when the
cabin temperature is warm. SeeHeated and
Ventilated Front Seats 039.
Touch Off or On.
Auto Heated Seats
When enabled, this feature will
automatically activate the heated seats at
the level required by the interior
temperature. The auto heated seats can be
turned off by using the heated seat buttons
on the center stack. See Heated and
Ventilated Front Seats 039.
Touch Off or On. Auto Defog
When set to On, the front defog will
automatically react to temperature and
humidity conditions that may cause fogging.
Touch Off or On.
Auto Rear Defog
If equipped, this feature will automatically
turn on the rear defog.
Touch Off or On.
Ionizer
If equipped and on, this feature purifies the
air in the interior of the vehicle. See
Climate
Control Systems 0178.
Touch Off or On.
Collision/Detection Systems
Touch and the following may display:
.Alert Type
.Forward Collision System
.Front Pedestrian Detection
.Adaptive Cruise Go Notifier
.Lane Change Alert
.Park Assist
.Rear Camera Park Assist Symbols
.Rear Cross Traffic Alert Alert Type
This feature will set the type of alert
received from the driver assistance systems
to help avoid crashes, either Beeps or Safety
Alert Seat vibration pulses.
Touch Beeps or Safety Alert Seat.
Forward Collision System
This setting can alert of a potential crash
with a detected vehicle ahead and can apply
brakes to help reduce a collision’s severity.
Touch Off, Alert, or Alert and Brake.
Front Pedestrian Detection
This feature may help avoid or reduce the
harm caused by front-end crashes with
nearby pedestrians.
See
Front Pedestrian Braking (FPB) System
0 235.
Select Off, Alert, or Alert and Brake.
Adaptive Cruise Go Notifier
This feature will give a reminder that
Adaptive Cruise Control provides when it has
brought the vehicle to a complete stop
behind another stopping vehicle, and then
that vehicle drives on. See Adaptive Cruise
Control (Advanced) 0214.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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168 Infotainment System
On certain vehicles, when the Speed Limiter
is turned ON, the vehicle’s maximum
acceleration will be limited. The DIC will
display a message that the acceleration is
limited.
Teen Driver Speed Warning :Allows the
speed warning to be turned on or off. Touch
Set Teen Driver Speed Warning to set the
warning speed.
Set Teen Driver Speed Warning : Displays a
warning in the DIC when exceeding a
selectable speed. Choose the desired speed
warning level. The speed warning does not
limit the speed of the vehicle.
SiriusXM Explicit Content Filter (if
equipped) : Allows the SiriusXM Explicit
Content Filter to be turned ON or OFF.
When ON, the teen driver will not be able
to listen to SiriusXM stations that contain
explicit content, and the Explicit Content
Filter selection in the Audio Settings will be
unavailable for change.
When Teen Driver is Active:
.The radio will mute when the driver, or in
some vehicles, the front passenger seat
belt, is not buckled. The audio from any
device paired to the vehicle will also be
muted.
.If an object, such as a briefcase, handbag,
grocery bag, laptop, or other electronic
device, is on the front passenger seat, it
could cause the radio to mute. If this
happens, remove the object from the
seat. See Passenger Sensing System 053.
.Some safety systems, such as Forward
Collision Alert, if equipped, cannot be
turned off.
.The gap setting for the Forward Collision
Alert and Adaptive Cruise Control,
if equipped, cannot be changed.
.When trying to change a safety feature
that is not configurable in Teen Driver,
the DIC displays a message indicating
that Teen Driver is active and the action
is not available.
.Super Cruise, if equipped, is not available.
.Enhanced Low Fuel Warning (if equipped)
–When the vehicle is low on fuel, the
low fuel light on the instrument cluster
flashes and the DIC low fuel warning
cannot be dismissed.
.Do not tow a trailer.
Report Card
The vehicle owner must secure the driver’s
consent to record certain vehicle data when
the vehicle is driven with a registered Teen Driver key. There is one Report Card per
vehicle. Data is only recorded when a
registered Teen Driver key is used to
operate the vehicle.
The Report Card data is collected from the
time Teen Driver is activated or the last
time the Report Card was reset. The
following items may be recorded:
.Distance Driven
–the total distance
driven.
.Maximum Speed –the maximum vehicle
speed detected.
.Overspeed Warnings –the number of
times the speed warning setting was
exceeded.
.Wide Open Throttle –the number of
times the accelerator pedal was pressed
nearly all the way down.
.Forward Collision Alerts –the number of
times the driver was notified when
approaching a vehicle ahead too quickly
and at potential risk for a crash.
.Forward Automatic Braking, also called
Automatic Emergency Braking (if
equipped) –the number of times the
vehicle detected that a forward collision
was imminent and applied the brakes.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Infotainment System 169
.Reverse Automatic Braking (if equipped)–
the number of times the vehicle detected
that a rearward collision was imminent
and applied the brakes.
.Traction Control –the number of times
the Traction Control System activated to
reduce wheel spin or loss of traction.
.Stability Control –the number of events
which required the use of electronic
stability control.
.Antilock Braking System Active –The
number of Antilock Brake System
activations.
.Tailgating Alerts –the number of times
the driver was alerted for following a
vehicle ahead too closely.
Report Card Data
Cumulative Data is saved for all trips until
the Report Card is reset or until the
maximum count is exceeded. If the
maximum count is exceeded for a Report
Card line item, that item will no longer be
updated in the Report Card until it is reset.
Each item will report a maximum of
1,000 counts. The distance driven will report
a maximum of 64,374 km (40,000 mi).
To delete Report Card data, do one of the
following:
.From the Report Card display, touch
Reset.
.Touch Clear All Teen Keys and PIN from
the Teen Driver menu. This will also
unregister any Teen Driver keys and
delete the PIN.
Forgotten PIN
See your dealer to reset the PIN.
Trademarks and License
Agreements
FCC Information
See Radio Frequency Statement 0336.
"Made for iPod," and "Made for iPhone,"
mean that an electronic accessory has been
designed to connect specifically to iPod or
iPhone, respectively, and has been certified
by the developer to meet Apple
performance standards. Apple is not
responsible for the operation of this device or its compliance with safety and regulatory
standards. Please note that the use of this
accessory with iPod or iPhone may affect
wireless performance. iPhone, iPod, iPod
classic, iPod nano, iPod shuffle, and iPod
touch are trademarks of Apple Inc.,
registered in the U.S. and other countries.
If you decide to continue service after your
trial, your selected subscription plan will
automatically renew thereafter. You will be
charged at then-current rates. Fees and taxes
apply. Please see the SiriusXM Customer
Agreement at siriusxm.com for complete
terms and how to cancel, which includes
calling SiriusXM at 1-866-635-2349. All fees
and programming are subject to change.
Fees and Taxes: Subscription fee, taxes, one
time activation fee, and other fees may
apply. Subscription fee is consumer only. All
fees and programming subject to change.
Subscriptions subject to Customer

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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186 Driving and Operating
Driving and Operating
Driving Information
Driver Behavior . . . . . . . . . . . . . . . . . . . . . . . . 187
Driving Environment . . . . . . . . . . . . . . . . . . . 187
Vehicle Design . . . . . . . . . . . . . . . . . . . . . . . . . 187
Driving for Better Fuel Economy . . . . . . . 187
Distracted Driving . . . . . . . . . . . . . . . . . . . . . 188
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . 188
Impaired Driving . . . . . . . . . . . . . . . . . . . . . . 189
Control of a Vehicle . . . . . . . . . . . . . . . . . . . 189
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 190
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 190
Driving on Wet Roads . . . . . . . . . . . . . . . . . 191
Hill and Mountain Roads . . . . . . . . . . . . . . . 191
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . 192
If the Vehicle Is Stuck . . . . . . . . . . . . . . . . . 193
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 193
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . . . . . . . 196
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . 197
Starting the Engine . . . . . . . . . . . . . . . . . . . . 198
Stop/Start System . . . . . . . . . . . . . . . . . . . . . 199
Engine Heater . . . . . . . . . . . . . . . . . . . . . . . . . 200
Retained Accessory Power (RAP) . . . . . . . 201Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 201
Shifting out of Park . . . . . . . . . . . . . . . . . . . 202
Parking over Things That Burn . . . . . . . . 202
Extended Parking . . . . . . . . . . . . . . . . . . . . . . 202
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . 203
Running the Vehicle While Parked . . . . . 203
Automatic Transmission
Automatic Transmission . . . . . . . . . . . . . . . 203
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . 206
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . 207
Brakes
Antilock Brake System (ABS) . . . . . . . . . . 207
Electric Parking Brake . . . . . . . . . . . . . . . . . 208
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . 209
Ride Control Systems
Traction Control/Electronic Stability
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Hill Descent Control (HDC) . . . . . . . . . . . . . 211
Driver Mode Control . . . . . . . . . . . . . . . . . . . 212
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Adaptive Cruise Control (Advanced) . . . . 214
Driver Assistance Systems
Driver Assistance Systems . . . . . . . . . . . . . 222
Assistance Systems for Parking or Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Rear Pedestrian Alert . . . . . . . . . . . . . . . . . . 230
Assistance Systems for Driving . . . . . . . . 231
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Automatic Emergency Braking (AEB) . . . . . . . . . . . . . . . . . . . . . . . . 234
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Side Blind Zone Alert (SBZA) . . . . . . . . . . . 237
Lane Change Alert (LCA) . . . . . . . . . . . . . . . 237
Lane Keep Assist (LKA) . . . . . . . . . . . . . . . . 238
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Recommended Fuel . . . . . . . . . . . . . . . . . . . 240
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 241
Fuels in Foreign Countries . . . . . . . . . . . . . 241
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . 241
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 241
Filling a Portable Fuel Container . . . . . . . 243