2021 BUICK ENCLAVE trailer

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
102 Instruments and Controls
Charging System Light
The charging system light comes on briefly
when the ignition is turned on, but the
engine is not running, as a check to show
the light is working. It should go out when
the engine is started.
If the light stays on, or comes on while
driving, there may be a problem with the
electrical charging system. Have it checked
by your dealer. Driving while this light is on
could drain the battery.
When this light comes on, or is flashing, the
Driver Information Center (DIC) also displays
a message.
If a short distance must be driven with the
light on, be sure to turn off all accessories,
such as the radio and air conditioner. Find a
safe place to stop the vehicle.
Malfunction Indicator Lamp
(Check Engine Light)
This light is part of the vehicle’s emission
control on-board diagnostic system. If this
light is on while the engine is running, a
malfunction has been detected and the
vehicle may require service. The light should
come on to show that it is working when
the ignition is in Service Mode. SeeIgnition
Positions 0203.
Malfunctions are often indicated by the
system before any problem is noticeable.
Being aware of the light and seeking service
promptly when it comes on may prevent
damage.
Caution
If the vehicle is driven continually with
this light on, the emission control system
may not work as well, the fuel economy
may be lower, and the vehicle may not
(Continued)
Caution (Continued)
run smoothly. This could lead to costly
repairs that might not be covered by the
vehicle warranty.
Caution
Modifications to the engine, transmission,
exhaust, intake, or fuel system, or the
use of replacement tires that do not
meet the original tire specifications, can
cause this light to come on. This could
lead to costly repairs not covered by the
vehicle warranty. This could also affect
the vehicle’s ability to pass an Emissions
Inspection/Maintenance test. See
Accessories and Modifications 0258.
If the light is flashing : A malfunction has
been detected that could damage the
emission control system and increase vehicle
emissions. Diagnosis and service may be
required.
To help prevent damage, reduce vehicle
speed and avoid hard accelerations and
uphill grades. If towing a trailer, reduce the
amount of cargo being hauled as soon as
possible.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
Lighting 127
The rear reading lamps are over the rear
seats.
Press the lamp lens to turn the rear
passenger reading lamps on or off.
Lighting Features
Entry Lighting
Some exterior lamps and most of the
interior lights turn on briefly at night, or in
areas of limited lighting when
Kis pressed
on the Remote Keyless Entry (RKE)
transmitter. See Remote Keyless Entry (RKE)
System Operation 07. When the driver door
is opened, all control lights, Driver
Information Center (DIC) lights, and door
pocket lights turn on. After about
30 seconds the exterior lamps turn off, then
the remaining interior lights dim to off.
Entry lighting can be disabled manually by
turning the ignition on or to ACC/
ACCESSORY, or by pressing
Qon the RKE
transmitter.
This feature can be changed. See “Vehicle
Locator Lights” underVehicle Personalization
0 114.
Exit Lighting
Some exterior lamps and interior lights
come on at night, or in areas with limited
lighting, when the driver door is opened
after the ignition is turned off. The dome
lamp comes on after the ignition is turned
off. The exterior lamps and dome lamp
remain on for a set amount of time, then
automatically turn off.
The exterior lamps turn off immediately by
turning the exterior lamp control off.
This feature can be changed. See Vehicle
Personalization 0114.
Battery Load Management
The vehicle has Electric Power Management
(EPM) that estimates the battery's
temperature and state of charge. It then
adjusts the voltage for best performance
and extended life of the battery.
When the battery's state of charge is low,
the voltage is raised slightly to quickly bring
the charge back up. When the state of
charge is high, the voltage is lowered
slightly to prevent overcharging. If the
vehicle has a voltmeter gauge or a voltage
display on the Driver Information Center (DIC), you may see the voltage move up or
down. This is normal. If there is a problem,
an alert will be displayed.
The battery can be discharged at idle if the
electrical loads are very high. This is true for
all vehicles. This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all of the power
needed for very high electrical loads.
A high electrical load occurs when several of
the following are on, such as: headlamps,
high beams, rear window defogger, climate
control fan at high speed, heated seats,
engine cooling fans, trailer loads, and loads
plugged into accessory power outlets.
EPM works to prevent excessive discharge of
the battery. It does this by balancing the
generator's output and the vehicle's
electrical needs. It can increase engine idle
speed to generate more power whenever
needed. It can temporarily reduce the power
demands of some accessories.
Normally, these actions occur in steps or
levels, without being noticeable. In rare
cases at the highest levels of corrective
action, this action may be noticeable to the
driver. If so, a DIC battery voltage and
charging message displays. It is

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
Infotainment System 173
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 seat
belt, and 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 057.
.Some safety systems, such as Forward
Collision Alert, if equipped, cannot be
turned off. They may include: Park Assist,
Side Blind Zone Alert, Lane Change Alert,
Rear Cross Traffic Alert, Forward Collision
Alert, Automatic Emergency Braking,
Pedestrian Braking, Lane Departure
Warning, Lane Keep Assist, Daytime
Running Lamps/Automatic Light Control,
Traction Control, Stability Control, and
Antilock Brakes.
.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 feature may be grayed out or
removed from the infotainment menu,
or the DIC will display 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.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
190 Driving and Operating
Driving and Operating
Driving Information
Driving for Better Fuel Economy . . . . . . . 191
Distracted Driving . . . . . . . . . . . . . . . . . . . . . . 191
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . 191
Impaired Driving . . . . . . . . . . . . . . . . . . . . . . . 192
Control of a Vehicle . . . . . . . . . . . . . . . . . . . 192
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 193
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 194
Off-Road Driving . . . . . . . . . . . . . . . . . . . . . . . 194
Driving on Wet Roads . . . . . . . . . . . . . . . . . 197
Hill and Mountain Roads . . . . . . . . . . . . . . 198
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 198
If the Vehicle Is Stuck . . . . . . . . . . . . . . . . . 199
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . 200
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . . . . . . . 203
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . 203
Starting the Engine . . . . . . . . . . . . . . . . . . . 205
Stop/Start System . . . . . . . . . . . . . . . . . . . . 206
Engine Heater . . . . . . . . . . . . . . . . . . . . . . . . . 206
Retained Accessory Power (RAP) . . . . . . . 207
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . 207
Shifting out of Park . . . . . . . . . . . . . . . . . . . 208
Parking over Things That Burn . . . . . . . . 209
Extended Parking . . . . . . . . . . . . . . . . . . . . . 209
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . 209
Running the Vehicle While Parked . . . . 209
Automatic Transmission
Automatic Transmission . . . . . . . . . . . . . . . 210
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . 214
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . 214
Brakes
Antilock Brake System (ABS) . . . . . . . . . . . 215
Electric Parking Brake . . . . . . . . . . . . . . . . . . 215
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . . 217
Ride Control Systems
Traction Control/Electronic StabilityControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Driver Mode Control . . . . . . . . . . . . . . . . . . . 218
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . 219
Adaptive Cruise Control (Advanced) . . . . 221
Driver Assistance Systems
Driver Assistance Systems . . . . . . . . . . . . . 229
Assistance Systems for Parking or Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Assistance Systems for Driving . . . . . . . . 235 Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Automatic Emergency Braking (AEB) . . . 237
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Side Blind Zone Alert (SBZA) . . . . . . . . . . 240
Lane Change Alert (LCA) . . . . . . . . . . . . . . . 240
Lane Keep Assist (LKA) . . . . . . . . . . . . . . . . 242
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Recommended Fuel . . . . . . . . . . . . . . . . . . . 244
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 244
Fuels in Foreign Countries . . . . . . . . . . . . . 244
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . 244
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . 244
Filling a Portable Fuel Container . . . . . . 246
Trailer Towing
General Towing Information . . . . . . . . . . 246
Driving Characteristics and Towing Tips . . . . . . . . . . . . . . . . . . . . . . . . . 246
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . 249
Towing Equipment . . . . . . . . . . . . . . . . . . . . 252
Trailer Sway Control (TSC) . . . . . . . . . . . . . 255
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . 256

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
Driving and Operating 201
number of occupant seating
positions (1), and the maximum vehicle
capacity weight (2) in kilograms and
pounds.
The Tire and Loading Information label
also shows the size of the original
equipment tires (3) and the
recommended cold tire inflation
pressures (4). For more information on
tires and inflation seeTires0285 and
Tire Pressure 0291.
There is also important loading
information on the vehicle Certification/
Tire label. It may show the Gross
Vehicle Weight Rating (GVWR) and the
Gross Axle Weight Rating (GAWR) for
the front and rear axle. See
“Certification/Tire Label” later in this
section.
“Steps for Determining Correct Load Limit–
1.
Locate the statement "The combined
weight of occupants and cargo
should never exceed XXX kg or
XXX lbs." on your vehicle’s placard.
2.Determine the combined weight of
the driver and passengers that will
be riding in your vehicle.
3.Subtract the combined weight of the
driver and passengers from XXX kg
or XXX lbs.
4.The resulting figure equals the
available amount of cargo and
luggage load capacity. For example,
if the "XXX" amount equals 1400 lbs.
and there will be five 150 lb
passengers in your vehicle, the
amount of available cargo and
luggage load capacity is 650 lbs.
(1400-750 (5 x 150) = 650 lbs.)
5.Determine the combined weight of
luggage and cargo being loaded on
the vehicle. That weight may not
safely exceed the available cargo and
luggage load capacity calculated in
Step 4.
6.If your vehicle will be towing a
trailer, load from your trailer will be
transferred to your vehicle. Consult
this manual to determine how this reduces the available cargo and
luggage load capacity of your
vehicle.”
See Trailer Towing 0249 for important
information on towing a trailer, towing
safety rules and trailering tips.
Example 1
1.Vehicle Capacity Weight for
Example 1 = 453 kg (1,000 lbs).
2.Subtract Occupant Weight @
68 kg (150 lbs) × 2 = 136 kg
(300 lbs).
3.Available Occupant and Cargo
Weight = 317 kg (700 lbs).

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
208 Driving and Operating
Leaving the Vehicle with the Engine
Running
{Warning
It can be dangerous to leave the vehicle
with the engine running. It could
overheat and catch fire.
It is dangerous to get out of the vehicle
if the vehicle is not in P (Park) with the
parking brake set. The vehicle can roll.
Do not leave the vehicle when the engine
is running. If you have left the engine
running, the vehicle can move suddenly.
You or others could be injured. To be
sure the vehicle will not move, even
when you are on fairly level ground,
always set the parking brake and shift to
P (Park). SeeShifting Into Park 0207.
If you are towing a trailer, see Driving
Characteristics and Towing Tips 0246.
If you have to leave the vehicle with the
engine running, be sure the vehicle is in
P (Park) and the parking brake is set before
you leave it. After you have pressed the
P (Park) button, hold down the brake pedal. If you cannot see the P (Park) indicator in
the instrument cluster, it means that the
vehicle is not in P (Park).
If you are towing a trailer and parking on a
hill, see
Driving Characteristics and Towing
Tips 0246.
Shifting out of Park
This vehicle is equipped with an electronic
transmission. The shift lock release button is
designed to prevent inadvertent shifting out
of P (Park) unless the ignition is in on, the
brake pedal is applied, and the shift lock
release button is pressed.
The shift lock control is always functional
except in the case of an uncharged or low
voltage (less than 9-volt) battery.
If the vehicle has an uncharged battery or a
battery with low voltage, try charging or
jump starting the battery. See Jump Starting
- North America 0309.
To shift out of P (Park):
1. Ensure the engine is running.
2. Apply the brake pedal.
3. Press and hold the shift lock release button.
4. Move the shift lever to the desired position.
5. The P indicator will turn white and the gear indicator on the shift lever will turn
red when the vehicle is no longer in
P (Park).
6. After releasing the shift lever, it will return to the center position.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
210 Driving and Operating
If parking on a hill and pulling a trailer, see
Driving Characteristics and Towing Tips
0246.
Automatic Transmission
The shift pattern is displayed in the top of
the shift lever. The selected gear position
will illuminate red on the shift lever, while
all others will be displayed in white. If the
shift is not immediate, as in very cold
conditions, the indicator on the shift lever
may flash until it is fully engaged.
The shift lever always starts from a center
position, represented by an amber dot on
the shift pattern. After releasing the shift
lever, it will return to the center position. The transmission does not operate when the
vehicle is off.
If the vehicle is in ACC/ACCESSORY, the
transmission can be shifted into P (Park).
If the ignition is turned off while at a
relatively high vehicle speed, the
transmission will automatically shift to
N (Neutral). Once the vehicle is stopped,
P (Park) can be selected.
P :
This position locks the drive wheels. Use
P (Park) when starting the engine because
the vehicle cannot move easily.
{Warning
It is dangerous to get out of the vehicle
if the transmission is not in P (Park) with
the parking brake set. The vehicle
can roll.
Do not leave the vehicle when the engine
is running. If the engine has been left
running, the vehicle can move suddenly.
You or others could be injured. To be
sure the vehicle will not move, even
when on fairly level ground, always set
the parking brake and place the
transmission into P (Park). See Shifting
Into Park 0207 and
Driving Characteristics and Towing Tips
0 246.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
214 Driving and Operating
Electronic Range Select (ERS), or Manual
Mode, allows for the selection of the range
of gear positions. Use this mode when
driving downhill or towing a trailer to limit
the top gear and vehicle speed. The shift
position indicator within the Driver
Information Center (DIC) will display a
number next to the L indicating the highest
available gear.
To enter Electronic Range Select or
Manual Mode:1. With the vehicle in D (Drive), pull back on the shift lever to activate L (Low). The
L in the shift pattern will illuminate in
red, and the D will switch to white. 2. Tap the left steering wheel control to
reduce the highest gear available, or the
right control to increase the highest gear
available.
3. To exit, pull back on the shift lever a second time. The D in the shift pattern
will illuminate in red, and the L will
switch to white.
When shifting to L (Low), the transmission
will shift to a preset lower gear range. For
this preset range, the highest gear available
will be displayed next to the L in the DIC.
All gears below that number are available to
use. For example, when 4 (Fourth) is shown
next to the L, 1 (First) through 4 (Fourth)
gears are shifted automatically. To shift to 5
(Fifth) gear, tap the right steering wheel
control or shift into D (Drive).
L (Low) will prevent shifting to a lower gear
range if the engine speed is too high. If the
vehicle speed is not reduced within the time
allowed, the lower gear range shift will not
be completed. Slow the vehicle, then tap the
left steering wheel control to the desired
lower gear range.
Cruise control can be used while in ERS.
Tow/Haul Mode
This feature can assist when towing or
hauling a heavy load. To activate Tow/Haul
Mode, see Driver Mode Control 0218.
Drive Systems
All-Wheel Drive
Vehicles with this feature can operate in
AWD Mode.
Press the button to select All-Wheel
Drive (AWD).
The AWD Mode will stay selected until the
mode is changed. See Driver Mode Control
0 218.