2021 BUICK ENCLAVE mirror

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
242 Driving and Operating
Lane Keep Assist (LKA)
If equipped, LKA may help avoid crashes due
to unintentional lane departures. This
system uses a camera to detect lane
markings between 60 km/h (37 mph) and
180 km/h (112 mph). It may assist by gently
turning the steering wheel if the vehicle
approaches a detected lane marking. It may
also provide a Lane Departure Warning
(LDW) alert if the vehicle crosses a detected
lane marking. LKA can be overriden by
turning the steering wheel. This system is
not intended to keep the vehicle centered in
the lane. LKA will not assist and alert if the
turn signal is active in the direction of lane
departure, or if it detects that you are
accelerating, braking or actively steering.
{Warning
The LKA system does not continuously
steer the vehicle. It may not keep the
vehicle in the lane or give a Lane
Departure Warning (LDW) alert, even if a
lane marking is detected.
The LKA and LDW systems may not:(Continued)
Warning (Continued)
.Provide an alert or enough steering
assist to avoid a lane departure or
crash.
.Detect lane markings under poor
weather or visibility conditions. This
can occur if the windshield or
headlamps are blocked by dirt, snow,
or ice; if they are not in proper
condition; or if the sun shines directly
into the camera.
.Detect road edges.
.Detect lanes on winding or hilly roads.
If LKA only detects lane markings on one
side of the road, it will only assist or
provide an LDW alert when approaching
the lane on the side where it has
detected a lane marking. Even with LKA
and LDW, you must steer the vehicle.
Always keep your attention on the road
and maintain proper vehicle position
within the lane, or vehicle damage,
injury, or death could occur. Always keep
the windshield, headlamps, and camera
sensors clean and in good repair. Do not (Continued)
Warning (Continued)
use LKA in bad weather conditions or on
roads with unclear lane markings, such as
construction zones.
{Warning
Using LKA while towing a trailer or on
slippery roads could cause loss of control
of the vehicle and a crash. Turn the
system off.
How the System Works
LKA uses a camera sensor installed on the
windshield ahead of the rearview mirror to
detect lane markings. It may provide brief
steering assist if it detects an unintended
lane departure. It may further provide an
audible alert or the driver seat may pulse
indicating that a lane marking has been
crossed.
To turn LKA on and off, press
Aon the
center stack. If equipped, the indicator light
on the button comes on when LKA is on and
turns off when LKA is disabled.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
Driving and Operating 243
Ais green if LKA is ready to assist. LKA
may assist by gently turning the steering
wheel if the vehicle approaches a detected
lane marking.
Ais amber when
assisting. It may also provide a Lane
Departure Warning (LDW) alert by flashing
Aamber if the vehicle crosses a
detected lane marking. Additionally, there
may be three beeps, or the driver seat may
pulse three times, on the right or left,
depending on the lane departure direction.
Take Steering
The LKA system does not continuously steer
the vehicle. If LKA does not detect active
driver steering, an alert and chime may be
provided. Steer the vehicle to dismiss. LKA
may become temporarily unavailable after
repeated take steering alerts.
When the System Does Not Seem to
Work Properly
The system performance may be
affected by:
.Close vehicles ahead.
.Sudden lighting changes, such as when
driving through tunnels.
.Banked roads.
.Roads with poor lane markings, such as
two-lane roads.
A system unavailable message may display
if the camera is blocked. The LKA system
does not need service.
A camera blocked message may display if
the camera is blocked. Some driver
assistance systems may have reduced
performance or not work at all. An LKA or
LDW unavailable message may display if the
systems are temporarily unavailable. This
message could be due to a blocked camera.
The LKA system does not need service. Clean
the outside of the windshield behind the
rearview mirror.
LKA assistance and/or LDW alerts may occur
due to tar marks, shadows, cracks in the
road, temporary or construction lane
markings, or other road imperfections. This
is normal system operation; the vehicle does
not need service. Turn LKA off if these
conditions continue.Fuel
Top Tier Fuel
GM recommends the use of TOP TIER
Detergent Gasoline to keep the engine clean,
reduce engine deposits, and maintain
optimal vehicle performance. Look for the
TOP TIER Logo or see www.toptiergas.com
for a list of TOP TIER Detergent Gasoline
marketers and applicable countries.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
Driving and Operating 247
The following information has many
time-tested, important trailering tips and
safety rules. Many of these are important
for your safety and that of your passengers.
Read this section carefully before pulling a
trailer.
When towing a trailer:
.Become familiar with and follow all state
and local laws that apply to trailer
towing. These requirements vary from
state to state.
.State laws may require the use of
extended side view mirrors. Even if not
required, you should install extended side
view mirrors if your visibility is limited or
restricted while towing.
.Do not tow a trailer during the first
800 km (500 mi) of vehicle use to
prevent damage to the engine, axle,
or other parts.
.It is recommended to perform the first oil
change before heavy towing.
.During the first 800 km (500 mi) of
trailer towing, do not drive over 80 km/h
(50 mph) and do not make starts at full
throttle.
.Vehicles can tow in D (Drive). Tow/Haul
Mode is recommended for heavier trailers.
SeeTow/Haul Mode 0214. If the transmission downshifts too often, a
lower gear may be selected using Manual
Mode See
Manual Mode 0213.
If equipped, the following driver assistance
features should be turned off when towing
a trailer:
.Adaptive Cruise Control (ACC)
.Super Cruise Control
.Lane Keep Assist (LKA)
.Park Assist
.Automatic Parking Assist (APA)
.Reverse Automatic Braking (RAB)
If equipped, the following driver assistance
features should be turned to alert or off
when towing a trailer:
.Automatic Emergency Braking (AEB)
.Intelligent Brake Assist (IBA)
.Front Pedestrian Braking (FPB)
If equipped with Lane Change Alert (LCA),
the LCA detection zones that extend back
from the side of the vehicle do not move
further back when a trailer is towed. Use
caution while changing lanes when towing a
trailer.
If equipped with Rear Cross Traffic Alert
(RCTA), use caution while backing up when
towing a trailer, as the RCTA detection zones that extend out from the back of the vehicle
do not move further back when a trailer is
towed.
{Warning
To prevent serious injury or death from
carbon monoxide (CO), when towing a
trailer:
.Do not drive with the liftgate, trunk/
hatch, or rear-most window open.
.Fully open the air outlets on or under
the instrument panel.
.Adjust the climate control system to a
setting that brings in only outside air.
See
“Climate Control Systems” in the
Index.
For more information about carbon
monoxide, see Engine Exhaust 0209.
Towing a trailer requires experience. The
combination of the vehicle and trailer is
longer and not as responsive as the vehicle
itself. Get used to the handling and braking
of the combination by driving on a level
road surface before driving on public roads.
The trailer structure, the tires, and the
brakes must be all be rated to carry the
intended cargo. Inadequate trailer

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
248 Driving and Operating
equipment can cause the combination to
operate in an unexpected or unsafe manner.
Before driving, inspect all trailer hitch parts
and attachments, safety chains, electrical
connectors, lamps, tires, and mirrors. See
Towing Equipment0252. If the trailer has
electric brakes, start the combination
moving and then manually apply the trailer
brake controller to check the trailer brakes
work. During the trip, occasionally check
that the cargo and trailer are secure and
that the lamps and any trailer brakes are
working.
Towing with a Stability Control System
When towing, the stability control system
might be heard. The system reacts to
vehicle movement caused by the trailer,
which mainly occurs during cornering. This is
normal when towing heavier trailers.
Following Distance
Stay at least twice as far behind the vehicle
ahead as you would when driving without a
trailer. This can help to avoid heavy braking
and sudden turns.
Passing
More passing distance is needed when
towing a trailer. The combination of the
vehicle and trailer will not accelerate as
quickly and is much longer than the vehicle
alone. It is necessary to go much farther
beyond the passed vehicle before returning
to the lane. Pass on level roadways. Avoid
passing on hills if possible.
Backing Up
Hold the bottom of the steering wheel with
one hand. To move the trailer to the left,
move that hand to the left. To move the
trailer to the right, move that hand to the
right. Always back up slowly and, if possible,
have someone guide you.
Making Turns
Caution
Turn more slowly and make wider arcs
when towing a trailer to prevent damage
to your vehicle. Making very sharp turns
could cause the trailer to contact the
vehicle. Make wider turns than normal when towing,
so trailer will not go over soft shoulders,
over curbs, or strike road signs, trees,
or other objects. Always signal turns well in
advance. Do not steer or brake suddenly.
Driving on Grades
Reduce speed and shift to a lower gear
before starting down a long or steep
downhill grade. If the transmission is not
shifted down, the brakes may overheat and
result in reduced braking efficiency.
The vehicle can tow in D (Drive). Shift the
transmission to a lower gear if the
transmission shifts too often under heavy
loads and/or hilly conditions.
When towing at higher altitudes, engine
coolant will boil at a lower temperature
than at lower altitudes. If the engine is
turned off immediately after towing at high
altitude on steep uphill grades, the vehicle
could show signs similar to engine
overheating. To avoid this, let the engine
run, preferably on level ground, with the
transmission in P (Park) for a few minutes
before turning the engine off. If the
overheat warning comes on, see
Engine
Overheating 0269.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
276 Vehicle Care
Headlamp Aiming
Front Headlamp Aiming
Headlamp aim has been preset and should
need no further adjustment.
If the vehicle is damaged in a crash, the
headlamp aim may be affected.
If adjustment to the headlamps is necessary,
see your dealer.
Bulb Replacement
For the proper type of replacement bulbs,
or any bulb changing procedure not listed in
this section, contact your dealer.
Caution
Do not replace incandescent bulbs with
aftermarket LED replacement bulbs. This
can cause damage to the vehicle electrical
system.
LED Lighting
This vehicle has several LED lamps. For
replacement of any LED lighting assembly,
contact your dealer.
License Plate Lamp
This section is for vehicles without a Rear
Camera Mirror (RCM). Vehicles with an RCM
have an LED license plate lamp.
Lamp Assembly
Bulb Assembly
To replace one of these bulbs: 1. Push the left end of the lamp assembly toward the right.
2. Turn the lamp assembly down to remove it.
3. Turn the bulb socket (1) counterclockwise to remove it from the lamp assembly (3).
4. Pull the bulb (2) straight out of the bulb socket (1).
5. Push the replacement bulb straight into the bulb socket and turn the bulb socket
clockwise to install it into the lamp
assembly.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
280 Vehicle Care
FusesUsage
F22 Electronic brake control module
F23 Parking/Trailer lamps
F24 Right trailer stoplamp/ Turnlamp
F25 Steering column lock
F26 –
F27 Left trailer stoplamp/ Turnlamp
F28 –
F29 –
F30 Washer pump F31 –
F32 Left low –beam
headlamp
F33 Daylight running lamps
F34 Horn F35 –
F36 –
F37 Right low –beam
headlamp Fuses
Usage
F38 Automatic headlamp leveling motor
F39 Transmission control module
F40 Left rear bus electrical center/Ignition
F41 Instrument cluster
F42 Heating, ventilation, and air conditioning
F43 Head-up display/ Reflective light auxiliary
display
F44 Communication gateway module/Run/
Crank
F45 –
F46 –
F47 –
F48 –
F49 Interior rearview mirror F50 Fuel system control module/Shifter interface
board/Run/Crank Fuses
Usage
F51 Heated steering wheel
F52 Folding seats switch
F53 Coolant pump
F54 –
F55 Air conditioning clutch
F56 –
F57 Engine control module/ Ignition
F58 Transmission control module/Ignition
F59 Engine control module battery
F60 Engine control module–even
F61 O2 sensor 1/Air flow
F62 –
F63 O2 sensor 2/Canister/ Engine oil/Turbo
F64 Aeroshutter F65 Engine control module powertrain 1

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
284 Vehicle Care
FusesUsage
F5 Rear drive control
F6 –
F7 Right window
F8 Rear defogger
F9 Left window
F10 –
F11 Trailer reverse
F12 USB port/Third row seats
F13 –
F14 –
F15 –
F16 –
F17 –/Air quality sensor
F18 –
F19 Ventilated seats/ Massage
F20 –
F21 –
F22 – Fuses
Usage
F23 –
F24 Lumbar F25 –
F26 Trailer brake lamps F27 Massage
F28 Passive entry/Passive start
F29 –
F30 Canister vent F31 –
F32 Heated mirrors
F33 USB port/Second row seats
F34 Liftgate module F35 Fuel system control module/Fuel tank zone
module.
F36 –
F37 –
F38 Window module
F39 Rear closure Fuses
Usage
F40 Memory seat module F41 Automatic occupancy sensor
F42 –
F43 –
F44 –
F45 Liftgate motor
F46 Rear heated seats F47 –
F48 –
F49 –
F50 –
F51 –
F52 Semi-active dampening system module
F53 –
F54 External object calculating remote
system/Side blind zone
alert
F55 –

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
358 Index
Auto StopStop/Start System . . . . . . . . . . . . . . . . . . . . . 206
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . . . . . . . . 28
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Emergency Braking (AEB) . . . . . . . . . . . . . . 237
Headlamp System . . . . . . . . . . . . . . . . . . . . . 124
Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Transmission Fluid . . . . . . . . . . . . . . . . . . . . . 264
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . 213
Auxiliary Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Avoiding Untrusted Media Devices . . . . . . . .138
B
Battery Exterior Lighting Battery Saver . . . . . . . . 128
Load Management . . . . . . . . . . . . . . . . . . . . . . 127
Power Protection . . . . . . . . . . . . . . . . . . . . . . 128
Battery - North America . . . . . . . . . . . . 272, 309
Blade Replacement, Wiper . . . . . . . . . . . . . . . 273
Bluetooth Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 160, 161
Bluetooth Audio . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Brake Parking, Electric . . . . . . . . . . . . . . . . . . . . . . . . 215
System Warning Light . . . . . . . . . . . . . . . . . 103
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270 Brakes (cont'd)
Antilock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192 Automatic Emergency (AEB) . . . . . . . . . . . 237
Braking System
Front Pedestrian (FPB) . . . . . . . . . . . . . . . . . 238
Break-In, New Vehicle . . . . . . . . . . . . . . . . . . . . 203
Bulb Replacement Headlamp Aiming . . . . . . . . . . . . . . . . . . . . . . 276
Headlamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
License Plate Lamps . . . . . . . . . . . . . . . . . . . 276
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . . . 299C
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
California Perchlorate Materials Requirements . . . 258
California Proposition 65 Warning . . . . . . . . . . . . . . . . . . 258, 272, 309, Back Cover
Canadian Vehicle Owners . . . . . . . . . . . . . . . . . . . 1
Capacities and Specifications . . . . . . . . . . . . . 335
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . 209
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . 198 Cargo
Management System . . . . . . . . . . . . . . . . . . . 83
Caution, Danger, and Warning . . . . . . . . . . . . . .2
Center Console Storage . . . . . . . . . . . . . . . . . . . 83
Chains, Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Charging System Light . . . . . . . . . . . . . . . . . . . 102
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Child Restraints Infants and Young Children . . . . . . . . . . . . . 64
Lower Anchors and Tethers forChildren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Older Children . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Securing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77, 79
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Cleaning Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . . . . . . . . . . 183
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Cluster, Instrument . . . . . . . . . . . . . . . . . . . 94, 96
Collision Damage Repair . . . . . . . . . . . . . . . . . 343