2020 BUICK ENCLAVE tow

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Instruments and Controls 123Caution (Continued)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
0 249 .
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.
If the light continues to flash, find a
safe place to park. Turn the vehicle
off and wait at least 10 seconds
before restarting the engine. If the
light is still flashing, follow the previous guidelines and see your
dealer for service as soon as
possible.
If the light is on steady : A
malfunction has been detected.
Diagnosis and service may be
required.
Check the following:
.
If fuel has been added to the
vehicle using the capless fuel
funnel adapter, make sure that it
has been removed. See “ Filling
the Tank with a Portable Gas
Can ” under Filling the Tank
0 232 . The diagnostic system
can detect if the adapter has
been left installed in the vehicle,
allowing fuel to evaporate into
the atmosphere. A few driving
trips with the adapter removed
may turn off the light.
.
Poor fuel quality can cause
inefficient engine operation and
poor driveability, which may go
away once the engine is warmed
up. If this occurs, change the
fuel brand. It may require at least one full tank of the proper
fuel to turn the light off. See
Recommended Fuel 0 231 .
If the light remains on, see your
dealer.
Emissions Inspection and
Maintenance Programs If the vehicle requires an Emissions
Inspection/Maintenance test, the
test equipment will likely connect to
the vehicle's Data Link
Connector (DLC).
The DLC is under the instrument
panel to the left of the steering
wheel. Connecting devices that are
not used to perform an Emissions
Inspection/Maintenance test or to
service the vehicle may affect
vehicle operation. See Add-On
Electrical Equipment 0 246 . See
your dealer if assistance is needed.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
124 Instruments and Controls The vehicle may not pass
inspection if:
.
The light is on when the engine
is running.
.
The light does not come on
when the ignition is in
Service Mode.
.
Critical emission control systems
have not been completely
diagnosed. If this happens, the
vehicle would not be ready for
inspection and might require
several days of routine driving
before the system is ready for
inspection. This can happen if
the 12-volt battery has recently
been replaced or run down, or if
the vehicle has been recently
serviced.
See your dealer if the vehicle will
not pass or cannot be made ready
for the test. Brake System Warning
Light Metric English
This light should come on briefly
when the vehicle is turned on. If it
does not come on then, have it fixed
so it will be ready to warn you if
there is a problem.
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.
See Towing the Vehicle 0 313 .{ WarningThe 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
Metric English
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

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Instruments and Controls 125Parking 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 starting the vehicle. 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, take the vehicle
to your dealer as soon as possible.
See the information for the Electric
Parking Brake under Electric
Parking Brake 0 198 . A message
may also display in the Driver
Information Center (DIC). 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. 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.
See Brake System Warning Light
0 124 .
Sport Mode Light
This light comes on when Sport
Mode is selected. See Driver Mode
Control 0 202 .
Tow/Haul Mode Light

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
126 Instruments and Controls For vehicles with the Tow/Haul
Mode feature, this light comes on
when the Tow/Haul Mode has been
activated.
See Tow/Haul Mode 0 196 .
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.
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 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) 0 229 .
Vehicle Ahead Indicator
If equipped, this indicator will
display green when a vehicle is
detected ahead and amber when
you are following a vehicle ahead
much too closely.
See Forward Collision Alert (FCA)
System 0 221 . FCA/ACC Following Gap
Light
If equipped, this light indicates the
following gap setting (near, medium,
or far) for FCA, and, if equipped,
Adaptive Cruise Control (ACC).
Pedestrian Ahead
Indicator
If equipped, this indicator will
display amber when a nearby
pedestrian is detected in front of the
vehicle.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
148 Lighting light will come on to indicate the
IntelliBeam 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 IntelliBeam system 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 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 This feature is used to signal to the
vehicle ahead that you want
to pass.
If the headlamps are off or in the
low-beam position, pull the turn
signal lever toward you to
momentarily switch to high beams.
Release the lever to turn the
high-beam headlamps off.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
150 Lighting 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.
Hazard Warning Flashers
| : Press to make the front and
rear turn signal lamps flash on and
off. This warns others that you are
having trouble.
Press
| again to turn the
flashers off. Turn and Lane-Change
Signals
Move the lever all the way up or
down to signal a turn.
An arrow on the instrument cluster
will flash in the direction of the turn
or lane change. Raise or lower the lever until the
arrow starts to flash to signal a lane
change. Hold it there until the lane
change is complete. If the lever is
moved momentarily to the lane
change position, the arrow will flash
three times. It will flash six times if
Tow/Haul Mode is active.
The lever returns to its starting
position when it is released.
If after signaling a turn or lane
change, the arrow flashes rapidly or
does not come on, a signal bulb
may be burned out.
Have any burned out bulbs
replaced. If a bulb is not burned out,
check the fuse. See Instrument
Panel Fuse Block 0 277 .

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
164 Driving and Operating
Driving and
Operating Driving Information Driving for Better Fuel
Economy . . . . . . . . . . . . . . . . . . . . 165
Distracted Driving . . . . . . . . . . . . 165
Defensive Driving . . . . . . . . . . . . . 166
Drunk Driving . . . . . . . . . . . . . . . . . 166
Control of a Vehicle . . . . . . . . . . . 167
Braking . . . . . . . . . . . . . . . . . . . . . . . 167
Steering . . . . . . . . . . . . . . . . . . . . . . 167
Off-Road Recovery . . . . . . . . . . . 168
Loss of Control . . . . . . . . . . . . . . . 168
Off-Road Driving . . . . . . . . . . . . . 169
Driving on Wet Roads . . . . . . . . 173
Hill and Mountain Roads . . . . . 174
Winter Driving . . . . . . . . . . . . . . . . 175
If the Vehicle Is Stuck . . . . . . . . 176
Vehicle Load Limits . . . . . . . . . . . 177
Starting and Operating New Vehicle Break-In . . . . . . . . . 181
Ignition Positions . . . . . . . . . . . . . 181
Starting the Engine . . . . . . . . . . . 183
Stop/Start System . . . . . . . . . . . . 184
Engine Heater . . . . . . . . . . . . . . . . 185 Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . 186
Shifting Into Park . . . . . . . . . . . . . 186
Shifting out of Park . . . . . . . . . . . 187
Parking over Things
That Burn . . . . . . . . . . . . . . . . . . . 189
Extended Parking . . . . . . . . . . . . 189
Engine Exhaust Engine Exhaust . . . . . . . . . . . . . . 190
Running the Vehicle While
Parked . . . . . . . . . . . . . . . . . . . . . . 191
Automatic Transmission Automatic Transmission . . . . . . 191
Manual Mode . . . . . . . . . . . . . . . . . 196
Tow/Haul Mode . . . . . . . . . . . . . . . 196
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . . 197
Brakes Antilock Brake
System (ABS) . . . . . . . . . . . . . . . 197
Electric Parking Brake . . . . . . . . 198
Brake Assist . . . . . . . . . . . . . . . . . . 199
Hill Start Assist (HSA) . . . . . . . . 200
Ride Control Systems
Traction Control/Electronic
Stability Control . . . . . . . . . . . . . 200
Driver Mode Control . . . . . . . . . . 202 Cruise Control Cruise Control . . . . . . . . . . . . . . . . 203
Adaptive Cruise Control . . . . . . 206
Driver Assistance Systems Driver Assistance Systems . . . 214
Assistance Systems for
Parking or Backing . . . . . . . . . . 216
Assistance Systems for
Driving . . . . . . . . . . . . . . . . . . . . . . 220
Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . 221
Automatic Emergency
Braking (AEB) . . . . . . . . . . . . . . . 223
Front Pedestrian Braking
(FPB) System . . . . . . . . . . . . . . . 224
Side Blind Zone
Alert (SBZA) . . . . . . . . . . . . . . . . 226
Lane Change Alert (LCA) . . . . . 227
Lane Keep Assist (LKA) . . . . . . 229
Fuel Top Tier Fuel . . . . . . . . . . . . . . . . . 231
Recommended Fuel . . . . . . . . . . 231
Prohibited Fuels . . . . . . . . . . . . . . 231
Fuels in Foreign Countries . . . 232
Fuel Additives . . . . . . . . . . . . . . . . 232
Filling the Tank . . . . . . . . . . . . . . . 232
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 234

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Driving and Operating 165Trailer Towing General Towing
Information . . . . . . . . . . . . . . . . . . 234
Driving Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 234
Trailer Towing . . . . . . . . . . . . . . . . 238
Towing Equipment . . . . . . . . . . . . 241
Trailer Sway Control (TSC) . . . 244
Conversions and Add-Ons Add-On Electrical
Equipment . . . . . . . . . . . . . . . . . . 246
Driving Information Driving for Better Fuel
Economy Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
.
Set the climate controls to the
desired temperature after the
engine is started, or turn them
off when not required.
.
On AWD vehicles, see Driver
Mode Control 0 202 .
.
Avoid fast starts and accelerate
smoothly.
.
Brake gradually and avoid
abrupt stops.
.
Avoid idling the engine for long
periods of time.
.
When road and weather
conditions are appropriate, use
cruise control.
.
Always follow posted speed
limits or drive more slowly when
conditions require. .
Keep vehicle tires properly
inflated.
.
Combine several trips into a
single trip.
.
Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.
.
Follow recommended scheduled
maintenance.
Distracted Driving Distraction comes in many forms
and can take your focus from the
task of driving. Exercise good
judgment and do not let other
activities divert your attention away
from the road. Many local
governments have enacted laws
regarding driver distraction. Become
familiar with the local laws in
your area.
To avoid distracted driving, keep
your eyes on the road, keep your
hands on the steering wheel, and
focus your attention on driving.