trailer BUICK ENCLAVE 2021 Owner's Guide

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
Driving and Operating 255
Tow/Haul Mode
For instructions on how to enter Tow/Haul
mode, seeDriver Mode Control 0218.
Tow/Haul assists when pulling a heavy
trailer or a large or heavy load. See Tow/
Haul Mode 0214.
Tow/Haul Mode is designed to be most
effective when the vehicle and trailer
combined weight is at least 75% of the
vehicle's Gross Combined Weight Rating
(GCWR). See “Weight of the Trailer” under
Trailer Towing 0249.
Tow/Haul Mode is most useful when pulling
a heavy trailer or a large or heavy load:
.through rolling terrain
.in stop-and-go traffic
.in busy parking lots
Operating the vehicle in Tow/Haul Mode
when lightly loaded or not towing will not
cause damage; however, it is not
recommended and may result in unpleasant
engine and transmission driving
characteristics and reduced fuel economy.
Trailer Sway Control (TSC)
Vehicles with StabiliTrak/Electronic Stability
Control (ESC) have a Trailer Sway Control
(TSC) feature. Trailer sway is unintended
side-to-side motion of a trailer while towing.
If the vehicle is towing a trailer and the TSC
detects that sway is increasing, the vehicle
brakes are selectively applied at each wheel,
to help reduce excessive trailer sway.
If equipped with the Integrated Trailer Brake
Control (ITBC) system, and the trailer has an
electric brake system, StabiliTrak/ESC may
also apply the trailer brakes.
If TSC is enabled, the Traction Control
System (TCS)/StabiliTrak/ESC warning light
will flash on the instrument cluster. Reduce
vehicle speed by gradually removing your
foot from the accelerator. If trailer sway
continues, StabiliTrak/ESC can reduce engine
torque to help slow the vehicle. TSC will not
function if StabiliTrak/ESC is turned off. See
Traction Control/Electronic Stability Control
0 217.
{Warning
Trailer sway can result in a crash and in
serious injury or death, even if the
vehicle is equipped with TSC.
If the trailer begins to sway, reduce
vehicle speed by gradually removing your
foot from the accelerator. Then pull over
to check the trailer and vehicle to help
correct possible causes, including an
improperly or overloaded trailer,
unrestrained cargo, improper trailer hitch
configuration, or improperly inflated or
incorrect vehicle or trailer tires. See
Towing Equipment 0252 for trailer
ratings and hitch setup recommendations.
Trailer Tires
Special Trailer (ST) tires differ from vehicle
tires. Trailer tires are designed with stiff
sidewalls to help prevent sway and to
support heavy loads. These features can
make it difficult to determine if the trailer
tire pressures are low only based on a visual
inspection.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
256 Driving and Operating
Always check all trailer tire pressures before
each trip when the tires are cool. Low trailer
tire pressure is a leading cause of trailer tire
blow-outs.
Trailer tires deteriorate over time. The trailer
tire sidewall will show the week and year
the tire was manufactured. Many trailer tire
manufacturers recommend replacing tires
more than six years old.
Overloading is another leading cause of
trailer tire blow-outs. Never load your trailer
with more weight than the tires are
designed to support. The load rating is
located on the trailer tire sidewall.
Always know the maximum speed rating for
the trailer tires before driving. This may be
significantly lower than the vehicle tire
speed rating. The speed rating may be on
the trailer tire sidewall. If the speed rating is
not shown, the default trailer tire speed
rating is 105 km/h (65 mph).Conversions and Add-Ons
Add-On Electrical Equipment
{Warning
The Data Link Connector (DLC) is used for
vehicle service and Emission Inspection/
Maintenance testing. SeeMalfunction
Indicator Lamp (Check Engine Light) 0102
. A device connected to the DLC —such
as an aftermarket fleet or driver-behavior
tracking device —may interfere with
vehicle systems. This could affect vehicle
operation and cause a crash. Such devices
may also access information stored in the
vehicle’s systems.
Caution
Some electrical equipment can damage
the vehicle or cause components to not
work and would not be covered by the
vehicle warranty. Always check with your
dealer before adding electrical equipment.
Add-on equipment can drain the vehicle's
12-volt battery, even if the vehicle is not
operating. The vehicle has an airbag system. Before
attempting to add anything electrical to the
vehicle, see
Servicing the Airbag-Equipped
Vehicle 061 and
Adding Equipment to the Airbag-Equipped
Vehicle 061.

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
Vehicle Care 283
Rear Compartment Fuse Block
The rear compartment fuse block is behind a
trim panel on the driver side of the rear
storage compartment.
The trim panel is removed by prying along
the top edge of the trim panel at two
notched locations. Remove the trim panel to
access the fuse block, or see your dealer.
To remove a fuse, use the fuse puller in the
engine compartment fuse block.
The fuse block label is on the back of the
access door in the driver side rear trim
panel.
FusesUsage
F1 –
F2 Trailer Fuses
Usage
F3 Folding seats
F4 Rear blower

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
312 Vehicle Care
Towing the Vehicle
Caution
Incorrectly towing a disabled vehicle may
cause damage. The damage would not be
covered by the vehicle warranty. Do not
lash or hook to suspension components.
Use the proper straps around the tires to
secure the vehicle. Do not drag a locked
wheel/tire. Use tire skates or dollies
under any locked wheel/tire while
loading the vehicle. Do not use a sling
type lift to tow the vehicle. This could
damage the vehicle.
Caution
Improper use of the tow eye can damage
the vehicle. If equipped, use the tow eye
to load a disabled vehicle onto a flatbed
tow truck from a flat road surface, or to
move the vehicle a short distance. Use
caution and low speeds. The transmission
must be in (N) Neutral when moving the
vehicle.GM recommends a flatbed tow truck to
transport a disabled vehicle. Use ramps to
help reduce approach angles, if necessary.
A towed vehicle should have its drive wheels
off the ground. Contact Roadside Assistance
or a professional towing service if the
disabled vehicle must be towed.
Front Attachment Points
The vehicle is equipped with specific
attachment points to be used by the towing
provider. These holes may be used to pull
the vehicle from a flat road surface onto the
flatbed tow truck.
Recreational Vehicle Towing
Recreational vehicle towing means towing
the vehicle behind another vehicle, such as
behind a motor home. The two most
common types of recreational vehicle
towing are known as dinghy towing and
dolly towing. Dinghy towing is towing the
vehicle with all four wheels on the ground.
Dolly towing is towing the vehicle with two
wheels on the ground and two wheels up
on a device known as a dolly.
Here are some important things to consider
before recreational vehicle towing:
.Before towing the vehicle, become
familiar with the local laws that apply to
recreational vehicle towing. These laws
may vary by region.
.The towing capacity of the towing
vehicle. Be sure to read the tow vehicle
manufacturer's recommendations.
.How far the vehicle will be towed. Some
vehicles have restrictions on how far and
how long they can be towed.
.The proper towing equipment. See your
dealer or trailering professional for
additional advice and equipment
recommendations.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
Service and Maintenance 323
Because of the way people use vehicles,
maintenance needs vary. There may need to
be more frequent checks and services. The
Additional Required Services - Normal are for
vehicles that:
.Carry passengers and cargo within
recommended limits on the Tire and
Loading Information label. SeeVehicle
Load Limits 0200.
.Are driven on reasonable road surfaces
within legal driving limits.
.Use the recommended fuel. See
Recommended Fuel 0244.
Refer to the information in the Maintenance
Schedule Additional Required Services -
Normal chart.
The Additional Required Services - Severe are
for vehicles that are:
.Mainly driven in heavy city traffic in hot
weather.
.Mainly driven in hilly or mountainous
terrain.
.Frequently towing a trailer.
.Used for high speed or competitive
driving.
.Used for taxi, police, or delivery service. Refer to the information in the Maintenance
Schedule Additional Required Services -
Severe chart.
{Warning
Performing maintenance work can be
dangerous and can cause serious injury.
Perform maintenance work only if the
required information, proper tools, and
equipment are available. If they are not,
see your dealer to have a trained
technician do the work. See
Doing Your
Own Service Work 0259.
Maintenance Schedule
Owner Checks and Services
Check the engine oil level. See Engine Oil
0 262.
Once a Month
.Check the tire inflation pressures. See Tire
Pressure 0291.
.Inspect the tires for wear. See Tire
Inspection 0297.
.Check the windshield washer fluid level.
See Washer Fluid 0270.
Engine Oil Change
When the CHANGE ENGINE OIL SOON
message displays, have the engine oil and
filter changed within the next 1 000 km/
600 mi. If driven under the best conditions,
the engine oil life system may not indicate
the need for vehicle service for up to a year.
The engine oil and filter must be changed at
least once a year and the oil life system
must be reset. Your trained dealer technician
can perform this work. If the engine oil life
system is reset accidentally, service the
vehicle within 5 000 km/3,000 mi since the
last service. Reset the oil life system when
the oil is changed. See Engine Oil Life
System 0264.
Engine Air Filter Change
When the REPLACE AT NEXT OIL CHANGE
message displays, the engine air filter
should be replaced at the next engine oil
change. When the REPLACE ENGINE AIR
FILTER SOON message displays, the engine
air filter should be replaced at the earliest
convenience. Reset the engine air filter life
system after the engine air filter is replaced.
See Engine Air Filter Life System 0265.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
366 Index
SystemsDriver Assistance . . . . . . . . . . . . . . . . . . . . . . 229
T
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Teen Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Text Telephone (TTY) Users . . . . . . . . . . . . . . 340
Theft-Deterrent Systems . . . . . . . . . . . . . . . . . . 26
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Third-Row Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285 All-Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 299
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Compact Spare . . . . . . . . . . . . . . . . . . . . . . . . 309
Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 300
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 303
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 291, 292
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . 107
Pressure Monitor Operation . . . . . . . . . . . 294
Pressure Monitor System . . . . . . . . . . . . . . 293
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . 286
Terminology and Definitions . . . . . . . . . . . 289 Tires (cont'd)
Uniform Tire Quality Grading . . . . . . . . . . 300
Wheel Alignment and Tire Balance . . . . 301
Wheel Replacement . . . . . . . . . . . . . . . . . . . . 301
When It Is Time for New Tires . . . . . . . . . 298
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . .214
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . . . 105
Towing
Driving Characteristics . . . . . . . . . . . . . . . . . 246
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
General Information . . . . . . . . . . . . . . . . . . . 246
Recreational Vehicle . . . . . . . . . . . . . . . . . . . 312
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Trailer Sway Control (TSC) . . . . . . . . . . . . . 255
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
Traction Control System (TCS)/StabiliTrakLight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Trademarks and License Agreements . . . . . .174
Trailer Sway Control (TSC) . . . . . . . . . . . . . . . . . . . . 255
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249 Transmission
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Fluid, Automatic . . . . . . . . . . . . . . . . . . . . . . . 264
Transportation Program, Courtesy . . . . . . . 343
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Turn and Lane-Change Signals . . . . . . . . . . . . 125
U
Uniform Tire Quality Grading . . . . . . . . . . . . 300
Universal Remote System . . . . . . . . . . . . . . . . . 118 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Updates Map Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138
Using the Navigation System . . . . . . . . . . . . .143
Using the System . . . . . . . . . . . . . . . . . . . . . . . . . 132
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . .2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Canadian Owners . . . . . . . . . . . . . . . . . . . . . . . . . 1
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Identification Number (VIN) . . . . . . . . . . . . 334
Load Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Personalization . . . . . . . . . . . . . . . . . . . . . . . . . 114