sensor BUICK ENVISION 2021 User Guide

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
Lighting 119
Turning On and Enabling the Adaptive
Headlight System
To enable the Adaptive Headlight System,
press
bon the turn signal lever when it
is dark outside and the exterior lamp control
is in AUTO or
2.
Driving with the Adaptive Headlight System
The system only activates the high beams
when driving over 40 km/h (25 mph).
There is a sensor near the top center of the
windshield that automatically detects the
lights of oncoming and preceding vehicles.
Keep this area of the windshield clear of
debris to allow for best system performance.
Individual segments of the headlamp high
beam are faded out according to the traffic
situation, preventing high beam light from glaring oncoming or preceding traffic. This
gives the best light distribution without
glaring other road users.
The Adaptive Headlight System remains on,
under the automatic control, until one of
the following situations occurs:
.Fog Lamps are turned On.
.The outside light is bright enough that
high-beam headlamps are not required.
.The vehicle's speed drops below 20 km/h
(12 mph).
.The Adaptive Headlight System is disabled
by the button on the turn signal lever.
If this happens, press
bon the turn
signal lever when the exterior lamp
control is in the or AUTO or
2position
to reactivate the Adaptive Headlight
System. The instrument cluster light will
come on to indicate the Adaptive
Headlight System is reactivated.
The high beams may not turn off
automatically if the system cannot detect
another vehicle's lamps because of any of
the following:
.The other vehicle's lamps are missing,
damaged, obstructed from view,
or otherwise undetected.
.The other vehicle's lamps are covered
with dirt, snow, and/or road spray.
.The other vehicle's lamps cannot be
detected due to dense exhaust, smoke,
fog, snow, road spray, mist, or other
airborne obstructions.
.The vehicle's windshield is dirty, cracked,
or obstructed by something that blocks
the view of the light sensor.
.The vehicle is loaded such that the front
end points upward, causing the light
sensor to aim high and not detect
headlamps and taillamps.
.The vehicle is being driven on winding or
hilly roads.
The Adaptive Headlight System may need to
be disabled if any of the above conditions
exist.
Town Light
Activated automatically in situations with
low exterior ambient light.
The light is wide and symmetrical. The
special beam pattern is designed to avoid
glare for other road users.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
120 Lighting
Country Light
Activated automatically when low beams
come on. This is the normal low beam light
pattern.
The illumination of the current lane and the
side of the road is improved, reducing glare
to oncoming and preceding vehicles.
The high beams may not turn off
automatically if the system cannot detect
another vehicle's lamps because of any of
the following:
.The other vehicle's lamps are missing,
damaged, obstructed from view,
or otherwise undetected.
.The other vehicle's lamps are covered
with dirt, snow, and/or road spray.
.The other vehicle's lamps cannot be
detected due to dense exhaust, smoke,
fog, snow, road spray, mist, or other
airborne obstructions.
.The vehicle's windshield is dirty, cracked,
or obstructed by something that blocks
the view of the light sensor.
.The vehicle is loaded such that the front
end points upward, causing the light
sensor to aim high and not detect
headlamps and taillamps.
.Driving on winding or hilly roads.The automatic high-beam headlamps may
need to be disabled if any of the above
conditions exist.
Exterior Lamps Off Reminder
A warning chime sounds if the driver door is
opened while the ignition is off and the
exterior lamps are on.
Headlamp High/Low-Beam
Changer
3:
Push the turn signal lever away from
you and release, to turn the high beams on.
To return to low beams, push the lever
again or pull it toward you and release.
This indicator light turns on in the
instrument cluster when the high-beam
headlamps are on.
Flash-to-Pass
To flash the high beams, pull the turn signal
lever toward you, and release.
Daytime Running Lamps (DRL)
DRL can make it easier for others to see the
front of the vehicle during the day.
The DRL system comes on when the
following conditions are met:
.The ignition is on.
.The exterior lamp control is in AUTO.
.The transmission is not in P (Park).
.The light sensor determines it is daytime.
When the DRL system is on, only the DRL
are on. The taillamps, sidemarker lamps,
instrument panel lights, and other lamps
will not be on.
When it begins to get dark, the automatic
headlamp system switches from DRL to the
headlamps.
To turn off the DRL, turn the exterior lamp
control to the off position and then release.
For vehicles first sold in Canada, off will only
work when the vehicle is parked.
Automatic Headlamp System
When the exterior lamp control is set to
AUTO and it is dark enough outside, the
headlamps come on automatically.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
Lighting 121
There is a light sensor on top of the
instrument panel. Do not cover the sensor;
otherwise the headlamps will come on when
they are not needed.
The system may also turn on the headlamps
when driving through a parking garage or
tunnel.
When it is bright enough outside, the
headlamps will turn off or may change to
Daytime Running Lamps (DRL).
The automatic headlamp system turns off
when the exterior lamp control is turned to
Oor the ignition is off.
Lights On with Wipers
If the windshield wipers are activated in
daylight with the engine on, and the
exterior lamp control is in AUTO, the
headlamps, parking lamps, and other
exterior lamps come on. The transition time
for the lamps coming on varies based on
wiper speed. When the wipers are not
operating, these lamps turn off. Move the
exterior lamp control to
Oor;to disable
this feature.
Adaptive Forward Lighting (AFL)
On vehicles with the AFL system, the
headlamps move horizontally while turning
the steering wheel to provide greater road
illumination in curves.
To activate AFL, set the exterior lamp
control to the AUTO or
2position.
To adjust the AFL setting, see Vehicle
Personalization 0109. Moving the control out of the AUTO or
2
position will deactivate the system.
Headlamps can move horizontally when the
vehicle speed is greater than approximately
3 km/h (2 mph). Headlamps will not move
horizontally when the transmission is in
R (Reverse).
Hazard Warning Flashers
|:
Press this button to make the front
and rear turn signal lamps flash on and off.
Press again to turn the flashers off.
The hazard warning flashers turn on
automatically if the airbags deploy.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
Infotainment System 163
About
Touch to view the infotainment system
software information.
Running Applications
Touch to see a complete list of applications
that are currently running on the
infotainment system.
Return to Factory Settings
Touch and the following may display:
.Reset Vehicle Settings: Resets all vehicle
settings for the current user.
Touch Reset or Cancel.
.Erase Settings and Personal Data: Erases
app data settings, user profiles, and
personal data including navigation and
mobile device data.
Touch Erase or Cancel.
.Clear Default Applications: Resets
preferred applications that have been set
to open when selecting a function. No
application data will be lost.
Touch Clear or Cancel.
Apps
The menu may contain the following:
Air Quality
Touch and the following may display:
.Ionizer: This setting purifies the air in the
interior of the vehicle..
Touch the controls on the infotainment
display to disable or enable.
.Air Quality Sensor: This setting switches
the system into Recirculation Mode based
on the quality of the outside air.
Touch Off, Low Sensitivity, or High
Sensitivity.
.Pollution Control: This setting turns on
the Recirculation Mode at low vehicle
speeds such as heavy traffic.
Touch the controls on the infotainment
display to disable or enable.
.Status Area Indication: This setting
determines if Air Quality Information is
shown in the bottom right status area.
Touch the controls on the infotainment
display to disable or enable.
.Index Color Code: This setting determines
which Color Code is shown for the Air
Quality Index.Touch the controls on the infotainment
display to select.
Android Auto
This feature allows you to interact directly
with your mobile device on the infotainment
display. See Apple CarPlay and Android Auto
0 158.
Touch Off or On.
Apple CarPlay
This feature allows you to interact directly
with your mobile device on the infotainment
display. See Apple CarPlay and Android Auto
0 158.
Touch the controls on the infotainment
display to disable or enable.
Apps
Touch and the following may display:
.Update Apps Automatically: This allows
downloaded applications to be updated
automatically.
Touch the controls on the infotainment
display to disable or enable.
.About Apps: Touch to view the versions
of the shop software.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
164 Infotainment System
Audio
Depending on the current audio source,
different options will be available.
Touch and the following may display:
.Tone Settings: Touch to adjust Equalizer,
Fade/Balance, or Sound Mode. See
“Infotainment System Sound Menu”in
AM-FM Radio 0130.
.Auto Volume: This feature adjusts the
volume based on the vehicle speed.
Touch Off, Low, Medium-Low, Medium,
Medium-High, or High.
.Bose AudioPilot Noise Compensation
Technology (If Equipped): This feature
adjusts the volume based on the noise in
the vehicle and the speed.
Touch Off or On.
.Manage Favorites: Touch to display a list
of Audio, Mobile Devices, and Navigation
favorites.
Favorites can be moved, renamed,
or deleted.
To move, touch and hold the favorite, and
then drag up or down to rearrange the
position.
.Set Number of Audio Favorites: Touch to
select how many favorites pages can be
viewed from the audio application. The
Auto setting will automatically adjust this
number based on the number of favorites
you have saved. Touch Auto, 5, 10, 15, 20,
25, 30, 35, or 40.
.RDS: This allows the Radio Data System
(RDS) to be turned on or off.
Touch the controls on the infotainment
display to disable or enable.
.HD Radio: This allows HD Radio reception
to be turned on or off.
Touch the controls on the infotainment
display to disable or enable.
.Explicit Content Filter: This setting allows
access to explicit content SiriusXM
channels.
Touch Off or On.
.Manage Devices: Select to connect to a
different phone source, disconnect a
phone, or delete a phone.
.Reset Music Index: This allows the music
index to be reset if you are having
difficulty accessing all of the media
content on your device.
Touch Yes or No. Climate
Touch and the following may display:
.Auto Fan Speed: This setting specifies the
amount of airflow when the climate
control fan setting is Auto Fan.
Touch Low, Medium, or High.
.Air Quality Sensor: This setting switches
the system into Recirculation Mode based
on the quality of the outside air.
Touch 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 the controls on the infotainment
display to disable or enable.
.Auto Cooled Seats: This setting
automatically turns on and regulates the
ventilated seats when the cabin
temperature is warm.
Touch the controls on the infotainment
display to disable or enable.
.Auto Heated Seats: This setting
automatically turns on and regulates the
heated seats when the cabin temperature
is cool. The auto heated seats can be
turned off by using the heated seat
controls on the center stack.

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
182 Climate Controls
be selected. The current mode appears in
the display. Pressing any of the three
buttons cancels automatic air delivery
control and the direction of the airflow is
controlled manually. Press AUTO to return
to automatic operation.
To change the current mode, select one or
more of the following:
z:Clears the windows of fog or moisture.
Air is directed to the windshield.
Y: Air is directed to the instrument panel
outlets.
[: Air is directed to the floor outlets.
0MAX : Air is directed to the windshield
and the fan runs at a higher speed. Fog or
frost is cleared from the windshield more
quickly. When the button is pressed again,
the system returns to the previous mode
setting.
For best results, clear all snow and ice from
the windshield before defrosting.
A/C : Press to turn the air conditioning
system on or off. If the climate control
system is turned off or the outside
temperature falls below freezing, the air
conditioner will not run. Pressing this button cancels automatic air
conditioning and turns off the air
conditioner. Press AUTO to return to
automatic operation and the air conditioner
runs automatically as needed. When the
indicator light is on, the air conditioner runs
automatically to cool the air inside the
vehicle or to dry the air needed to defog
the windshield faster.
@:
Press to turn on recirculation. An
indicator light comes on. Air is recirculated
to quickly cool the inside of the vehicle or
to reduce the entry of outside air and odors.
xory: Liftxoryfor the highest
heated seat setting. Lifting the heated seat
button again will keep the heated seat at
the highest setting. Press the heated seat
button down to lower the heat level or turn
the heated seat off.
Press
xory, if available, for the highest
ventilated seat setting. Pressing the
ventilated seat button again will keep the
ventilated seat at the highest setting. Lift
the ventilated seat button to lower the vent
level or turn the ventilated seat off. See
Heated and Ventilated Front Seats 039. Auto Defog :
The climate control system
may have a sensor to automatically detect
high humidity inside the vehicle. When high
humidity is detected, the climate control
system may adjust to outside air supply and
turn on the air conditioner. The fan speed
may slightly increase to help prevent
fogging. If the climate control system does
not detect possible window fogging, it
returns to normal operation.
Ionizer : If equipped with an ionizer, this
feature helps to clean the air inside the
vehicle and remove contaminants such as
pollen, odors, and dust. If the climate
control system is on and the ionizer is
enabled, the ionizer status indicator will be
lit on the climate control display.
Rear Window Defogger
K: Press to turn the rear window defogger
on or off. An indicator light on the button
comes on to show that the rear window
defogger is on.
The defogger can be turned off by turning
the ignition to off or ACC/ACCESSORY.
The rear window defogger can be set to
automatic operation. When auto rear defog
is selected, the rear window defogger turns
on automatically when the interior

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
Climate Controls 183
temperature is cold and the outside
temperature is about 7 °C (44 °F) and below.
The auto rear defogger turns off
automatically.
If equipped, the heated outside mirrors turn
on when the rear window defogger button
is on and help to clear fog or frost from the
surface of the mirror. SeeHeated Mirrors
0 25.
Caution
Do not try to clear frost or other material
from the inside of the front windshield
and rear window with a razor blade or
anything else that is sharp. This may
damage the rear window defogger grid
and affect the radio's ability to pick up
stations clearly. The repairs would not be
covered by the vehicle warranty.
Remote Start Climate Control Operation :
If equipped with remote start, the climate
control system may run when the vehicle is
started remotely. If equipped with heated or
ventilated seats or a heated steering wheel,
these features may come on during a
remote start. See Remote Vehicle Start 012,
Heated and Ventilated Front Seats 039, and
Heated Steering Wheel 082.
Sensor
The solar sensor, on top of the instrument
panel near the windshield, monitors the
solar heat.
The climate control system uses the sensor
information to adjust the temperature, fan
speed, recirculation, and air delivery mode
for best comfort.
Do not cover the sensor; otherwise the
automatic climate control system may not
work properly.
Interior Air Quality
If equipped, the Interior Air Quality display
indicates the concentration of PM2.5
(2.5 micron and smaller) pollution present in the interior air of the vehicle. The source of
this pollution is the environment
surrounding the vehicle. Your vehicle is
equipped with a cabin filter which cleans the
air and reduces this pollution anytime the
HVAC is on.
The displayed value is updated every few
seconds by a sensor in the vehicle’s interior.
Higher numbers indicate a higher level of
pollution in the air while lower numbers
indicate cleaner air. A reading of zero
indicates the pollution level is too low to be
read by the sensor.
The interior air quality level is displayed in
the application which can be opened from
the home screen. The interior air quality
level may also be continually displayed in
the lower right corner of the screen. This
can be turned on or off by selecting the
Settings menu, then Applications, and then
Air Quality.
The number scaling, colors, and categories
are set according to regional standards.
More information is available by touching
the screen within the Interior Air Quality
application. For more information on the
pollution scale in your region visit:
https://www.epa.gov/pm-pollution

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
214 Driving and Operating
The cruise control indicator on the
instrument cluster turns green after cruise
control has been set to the desired speed.
SeeInstrument Cluster 089.
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 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 vehicle speed in small
increments, press RES+ up briefly. For
each press, the vehicle goes about 1 km/h
(1 mph) faster.
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 decrease the vehicle speed in small
increments, press SET– down briefly. For
each press, the vehicle goes about 1 km/h
(1 mph) slower.
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
previously set cruise speed. While pressing
the accelerator pedal or shortly following
the release to override cruise control, briefly
pressing SET− will result in cruise set to the
current vehicle speed.
Using Cruise Control on Hills
How well the cruise control will work 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 your
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, press5.
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
(Advanced)
If equipped with Adaptive Cruise Control
(ACC), it allows you to select the cruise
control set speed and following gap. Read
this entire section before using this system.
If no vehicle is detected in your path, ACC
works like regular cruise control. ACC uses
camera and radar sensors. See Radio
Frequency Statement 0336.
The following gap is the following time (or
distance) 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.

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. SeeTraction Control/Electronic
Stability Control 0210. 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
Defensive Driving 0188.
{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– .

Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 219
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 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 with cargo extending from the
back end.
.Non-standard shaped vehicles, such as
vehicle transport, vehicles with a side car
fitted, or horse carriages.
.Objects that are close to the front of your
vehicle.
ACC Automatically Disengages
ACC may automatically disengage and the
driver will need to manually apply the
brakes to slow the vehicle if:
.The sensors are blocked.
.The Traction Control System (TCS) or
StabiliTrak/ESC system has activated or
been disabled.
.There is a fault in the system.
.The radar falsely reports blockage when
driving in a desert or remote area with
no other vehicles or roadside objects.
A DIC message may display 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 before proceeding. In addition,
the left and right sides of the Safety Alert
Seat will pulse three times, or three beeps
will sound. See “Alert Type”and“Adaptive