2021 BUICK ENCORE heater

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-14607636) -
2021 - CRC - 8/18/20
Seats and Restraints 45
The passenger sensing system is designed to
turn off the front outboard passenger
frontal airbag and knee airbag (if
equipped) if:
.The front outboard passenger seat is
unoccupied.
.The system determines that an infant is
present in a rear-facing infant seat.
.The system determines that a small child
is present in a child restraint.
.The system determines that a small child
is present in a booster seat.
.A front outboard passenger takes his/her
weight off of the seat for a period
of time.
.A front outboard passenger seat is
occupied by a smaller person, such as a
child who has outgrown child restraints.
.There is a critical problem with the airbag
system or the passenger sensing system.
When the passenger sensing system has
turned off the front outboard passenger
frontal airbag and knee airbag (if equipped),
the OFF indicator will light and stay lit as a
reminder that the airbags are off. See
Passenger Airbag Status Indicator 080. The passenger sensing system is designed to
turn on the front outboard passenger frontal
airbag and knee airbag (if equipped)
anytime the system senses that a person of
adult size is sitting properly in the front
outboard passenger seat. When the
passenger sensing system has allowed the
airbags to be enabled, the ON indicator will
light and stay lit as a reminder that the
airbags are active.
For some children who have outgrown child
restraints and for very small adults, the
passenger sensing system may or may not
turn off the front outboard passenger
frontal airbag and knee airbag (if equipped),
depending upon the person's seating posture
and body build. Everyone in the vehicle who
has outgrown child restraints should wear a
seat belt properly
—whether or not there is
an airbag for that person.
{Warning
If the airbag readiness light ever comes
on and stays on, it means that
something may be wrong with the airbag
system. To help avoid injury to yourself
or others, have the vehicle serviced right
(Continued)
Warning (Continued)
away. SeeAirbag Readiness Light 079
for more information, including important
safety information.
If the On Indicator Is Lit for a Child
Restraint
If a child restraint has been installed and
the ON indicator is lit:
1. Turn the vehicle off.
2. Remove the child restraint from the vehicle.
3. Remove any additional items from the seat such as blankets, cushions, seat
covers, seat heaters, or seat massagers.
4. Reinstall the child restraint following the directions provided by the child restraint
manufacturer and refer to Securing Child
Restraints (With the Seat Belt in the Rear
Seat) 062 or
Securing Child Restraints (With the Seat
Belt in the Front Seat) 064.
5. If, after reinstalling the child restraint and restarting the vehicle, the ON
indicator is still lit, turn the vehicle off.
Then slightly recline the vehicle seatback
and adjust the seat cushion,

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-14607636) -
2021 - CRC - 8/18/20
46 Seats and Restraints
if adjustable, to make sure that the
vehicle seatback is not pushing the child
restraint into the seat cushion. Also
make sure the child restraint is not
trapped under the vehicle head restraint.
If this happens, adjust the head restraint.
SeeHead Restraints 024.
6. Restart the vehicle.
If the ON indicator is still lit, secure the child
in the child restraint in a rear seat position
in the vehicle, and check with your dealer.
If the Off Indicator Is Lit for an
Adult-Sized Occupant
If a person of adult size is sitting in the
front outboard passenger seat, but the OFF
indicator is lit, it could be because that
person is not sitting properly in the seat.
Use the following steps to allow the system
to detect that person and enable the front
outboard passenger frontal airbag and knee
airbag (if equipped): 1. Turn the vehicle off.
2. Remove any additional material from the seat, such as blankets, cushions, seat
covers, seat heaters, or seat massagers.
3. Place the seatback in the fully upright position.
4. Have the person sit upright in the seat, centered on the seat cushion, with legs
comfortably extended.
5. Restart the vehicle and have the person remain in this position for two to
three minutes after the ON indicator
is lit.
{Warning
If the front outboard passenger airbag is
turned off for an adult-sized occupant,
the airbag will not be able to inflate and
help protect that person in a crash,
(Continued)
Warning (Continued)
resulting in an increased risk of serious
injury or even death. An adult-sized
occupant should not ride in the front
outboard passenger seat, if the passenger
airbag OFF indicator is lit.
Additional Factors Affecting System
Operation
Seat belts help keep the passenger in
position on the seat during vehicle
maneuvers and braking, which helps the
passenger sensing system maintain the
passenger airbag status. See“Seat Belts”
and “Child Restraints” in the Index for
additional information about the importance
of proper restraint use.
A thick layer of additional material, such as
a blanket or cushion, or aftermarket
equipment such as seat covers, seat heaters,
and seat massagers can affect how well the
passenger sensing system operates. We
recommend that you not use seat covers or
other aftermarket equipment except when
approved by GM for your specific vehicle.

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-14607636) -
2021 - CRC - 8/18/20
Seats and Restraints 47
SeeAdding Equipment to the
Airbag-Equipped Vehicle 047 for more
information about modifications that can
affect how the system operates.
The ON indicator may be lit if an object,
such as a briefcase, handbag, grocery bag,
laptop, or other electronic device is put on
an unoccupied seat. If this is not desired,
remove the object from the seat.
{Warning
Stowing articles under the passenger seat
or between the passenger seat cushion
and seatback may interfere with the
proper operation of the passenger
sensing system.
Servicing the Airbag-Equipped
Vehicle
Airbags affect how the vehicle should be
serviced. There are parts of the airbag
system in several places around the vehicle.
Your dealer and the service manual have
information about servicing the vehicle and
the airbag system. To purchase a service
manual, see Publication Ordering
Information 0289.
{Warning
For up to 10 seconds after the vehicle is
turned off and the battery is
disconnected, an airbag can still inflate
during improper service. You can be
injured if you are close to an airbag
when it inflates. Avoid yellow connectors.
They are probably part of the airbag
system. Be sure to follow proper service
procedures, and make sure the person
performing work for you is qualified to
do so.
Adding Equipment to the
Airbag-Equipped Vehicle
Adding accessories that change the vehicle's
frame, bumper system, height, front end,
or side sheet metal may keep the airbag
system from working properly.
The operation of the airbag system can also
be affected by changing, including
improperly repairing or replacing, any parts
of the following:
.Airbag system, including airbag modules,
front or side impact sensors, sensing and
diagnostic module, or airbag wiring
.Front seats, including stitching, seams or
zippers
.Seat belts
.Steering wheel, instrument panel, ceiling
trim, or pillar garnish trim
.Inner door seals, including speakers
Your dealer and the service manual have
information about the location of the airbag
modules and sensors, sensing and diagnostic
module, and airbag wiring along with the
proper replacement procedures.
In addition, the vehicle has a passenger
sensing system for the front outboard
passenger position, which includes sensors
that are part of the passenger seat. The
passenger sensing system may not operate
properly if the original seat trim is replaced
with non-GM covers, upholstery, or trim; or
with GM covers, upholstery, or trim
designed for a different vehicle. Any object,
such as an aftermarket seat heater or a
comfort-enhancing pad or device, installed
under or on top of the seat fabric, could
also interfere with the operation of the
passenger sensing system. This could either
prevent proper deployment of the passenger
airbag(s) or prevent the passenger sensing

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-14607636) -
2021 - CRC - 8/18/20
Driving and Operating 163
Driving and Operating
Driving Information
Driver Behavior . . . . . . . . . . . . . . . . . . . . . . . . 164
Driving Environment . . . . . . . . . . . . . . . . . . . 164
Vehicle Design . . . . . . . . . . . . . . . . . . . . . . . . . 164
Driving for Better Fuel Economy . . . . . . . 164
Distracted Driving . . . . . . . . . . . . . . . . . . . . . 164
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . 165
Impaired Driving . . . . . . . . . . . . . . . . . . . . . . . 165
Control of a Vehicle . . . . . . . . . . . . . . . . . . . 165
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 167
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 167
Driving on Wet Roads . . . . . . . . . . . . . . . . . 167
Hill and Mountain Roads . . . . . . . . . . . . . . 168
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 169
If the Vehicle Is Stuck . . . . . . . . . . . . . . . . . 169
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 170
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . . . . . . . 173
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . 174
Starting the Engine . . . . . . . . . . . . . . . . . . . . 175
Winter Cover . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Engine Heater . . . . . . . . . . . . . . . . . . . . . . . . . 177
Retained Accessory Power (RAP) . . . . . . . 178
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 178
Shifting out of Park . . . . . . . . . . . . . . . . . . . 179Parking over Things That Burn . . . . . . . . 180
Extended Parking . . . . . . . . . . . . . . . . . . . . . . 180
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . 180
Running the Vehicle While Parked . . . . . 181
Automatic Transmission
Automatic Transmission . . . . . . . . . . . . . . . . 181
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . 183
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . 183
Brakes
Antilock Brake System (ABS) . . . . . . . . . . . 184
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . . 185
Ride Control Systems
Traction Control/Electronic Stability
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . 186
Driver Assistance Systems
Driver Assistance Systems . . . . . . . . . . . . . 188
Rear Vision Camera (RVC) . . . . . . . . . . . . . 190
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Side Blind Zone Alert (SBZA) . . . . . . . . . . . 194
Lane Departure Warning (LDW) . . . . . . . . 195
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Recommended Fuel . . . . . . . . . . . . . . . . . . . . 196
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 196
Fuels in Foreign Countries . . . . . . . . . . . . . 197
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . 197
Filling the Tank (Capless Fuel Fill) . . . . . . 197
Filling the Tank (Capped Fuel Fill) . . . . . 198
Filling a Portable Fuel Container . . . . . . 200
Trailer Towing
General Towing Information . . . . . . . . . . 200
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . 200

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-14607636) -
2021 - CRC - 8/18/20
176 Driving and Operating
When the engine starts, let go of the
button and the accelerator. If the vehicle
starts briefly but then stops again, follow
the same steps. This clears the extra
gasoline from the engine.
Do not race the engine immediately
after starting it. Operate the engine and
transmission gently until the oil warms
up and lubricates all moving parts.
Winter Cover
If equipped, the winter cover can be used to
enhance heater performance in extremely
cold conditions below−7 °C (20 °F). The
winter cover installs over the grille and
restricts airflow to the engine compartment.
For vehicles that did not come with a winter
cover, a winter cover can be purchased. See
your dealer for additional information.
When the winter cover is installed, the
climate controls AUTO mode may not
function properly. Use the manual settings
for comfort.
Usage Guidelines
The winter cover should only be used while
operating the vehicle in extremely cold
temperatures or in heavy snow for extended
periods. In these temperatures, the vehicle does not need a large amount of air to
properly cool the engine. When more
airflow is required to cool the vehicle, the
winter cover should not be used. The
following usage guidelines will allow
adequate airflow for proper radiator and air
cooler performance:
.Do not use the winter cover if towing a
trailer. The vehicle may overheat if the
radiator is covered while towing.
.Do not modify the cover. The winter
cover does not cover some sections of the
front of the vehicle to provide enough
airflow.
.Keep the underside of the winter cover as
clean as possible. Remove monthly or as
necessary and clean away dust and
debris.
.Do not use the winter cover above
−0 °C
(32 °F).
Use only a mild soap to clean. Do not use
harsh soap, strong detergents, or vinyl
protectant/sealant type products as they
may damage the special finish. Allow the
winter cover to dry completely before
reinstalling.
Installation Instructions
When first trying to fit the cover, it may
appear to be undersized but will stretch
during installation to ensure a tight fit. The
initial installation of the cover is best
performed when the winter cover is warm.
1. Center the winter grille cover and make sure that it is positioned correctly.

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-14607636) -
2021 - CRC - 8/18/20
Driving and Operating 177
2. Push the plastic hooks back to engagethe grille slats.
3. Repeat for all hooks to fully engage cover to grille.
4. Make sure all clips remain engaged during installation. The cover should be
stretched to a tight fit when properly
installed.
Engine Heater
Vehicles may have an engine heater. The
engine heater can help in cold weather
conditions at or below −18 °C (0 °F) for easier
starting and better fuel economy during
engine warm-up. Plug in the heater at least
four hours before starting the vehicle. An internal thermostat in the plug end of the
cord will prevent engine heater operation at
temperatures above
−18 °C (0 °F).
{Warning
Do not plug in the engine block heater
while the vehicle is parked in a garage or
under a carport. Property damage or
personal injury may result. Always park
the vehicle in a clear open area away
from buildings or structures.
To Use the Engine Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical
cord. The cord is in the driver side of the
engine compartment, near the battery.
It is shipped from the factory with a tie
holding it in place. Use care in removing
the tie so that the cord is not damaged.
Check the heater cord for damage. If it is
damaged, do not use it. See your dealer
for a replacement. Inspect the cord for
damage yearly.
3. Plug it into a normal, grounded 110-volt AC outlet.
{Warning
Improper use of the heater cord or an
extension cord can damage the cord and
may result in overheating and fire.
.Plug the cord into a three-prong
electrical utility receptacle that is
protected by a ground fault detection
function. An ungrounded outlet could
cause an electric shock.
.Use a weatherproof, heavy-duty,
15 amp-rated extension cord if needed.
Failure to use the recommended
extension cord in good operating
condition, or using a damaged heater
(Continued)

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-14607636) -
2021 - CRC - 8/18/20
178 Driving and Operating
Warning (Continued)
or extension cord, could make it
overheat and cause a fire, property
damage, electric shock, and injury.
.Do not operate the vehicle with the
heater cord permanently attached to
the vehicle. Possible heater cord and
thermostat damage could occur.
.While in use, do not let the heater
cord touch vehicle parts or sharp
edges. Never close the hood on the
heater cord.
.Before starting the vehicle, unplug the
cord, reattach the cover to the plug,
and securely fasten the cord. Keep the
cord away from any moving parts.
4. Before starting the engine, be sure to unplug and store the cord as it was
before to keep it away from moving
engine parts. If you do not it could be
damaged.
The length of time the heater should remain
plugged in depends on several factors. Ask a
dealer in the area where you will be parking
the vehicle for the best advice on this.
Retained Accessory Power (RAP)
When the ignition is turned from on to off,
the following features (if equipped) will
continue to function for up to 10 minutes,
or until the driver door is opened. These
features will also work when the ignition is
in RUN or ACC/ACCESSORY:
.Infotainment System
.Power Windows (during RAP this
functionality will be lost when any door
is opened)
.Sunroof (during RAP this functionality will
be lost when any door is opened)
.Auxiliary Power Outlet
.Audio System
.OnStar System
Shifting Into Park
1. Hold the brake pedal down and set the parking brake. See Parking Brake0184.
2. Move the shift lever into P (Park) by pressing the button on the shift lever
and pushing the lever all the way
toward the front of the vehicle.
3. Turn the ignition off.
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 shift lever is not fully in P (Park)
with the parking brake firmly 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 move
the shift lever to P (Park). See Shifting
Into Park 0178.
If you have to leave the vehicle with the
engine running, be sure the vehicle is in
P (Park) and the parking brake is firmly set
before you leave it. After you have moved
the shift lever into P (Park), hold the brake
pedal down. Then see if you can move the
shift lever away from P (Park) without first

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-14607636) -
2021 - CRC - 8/18/20
Vehicle Care 213
1.4L L4 Engine (LUV)
1. Engine Cooling Fan (Out of View)
2. Engine Coolant Surge Tank andPressure Cap
{Warning
An underhood electric fan can start up
even when the engine is not running and
can cause injury. Keep hands, clothing,
and tools away from any underhood
electric fan.
{Warning
Do not touch heater or radiator hoses,
or other engine parts. They can be very
hot and can burn you. Do not run the
engine if there is a leak; all coolant could
leak out. That could cause an engine fire
and can burn you. Fix any leak before
driving the vehicle.
Engine Coolant
The cooling system in the vehicle is filled
with DEX-COOL engine coolant. This coolant
is designed to remain in the vehicle for
5 years or 240 000 km (150,000 mi),
whichever occurs first.
The following explains the cooling system
and how to check and add coolant when it
is low. If there is a problem with engine
overheating, see Engine Overheating 0215.
What to Use
{Warning
Plain water, or other liquids such as
alcohol, can boil before the proper
coolant mixture will. With plain water or
(Continued)
Warning (Continued)
the wrong mixture, the engine could get
too hot but there would not be an
overheat warning. The engine could catch
fire and you or others could be burned.
Use a 50/50 mixture of clean drinkable
water and DEX-COOL coolant. This mixture:
.Gives freezing protection down to −37 °C
(−34 °F), outside temperature.
.Gives boiling protection up to 129 °C
(265 °F), engine temperature.
.Protects against rust and corrosion.
.Will not damage aluminum parts.
.Helps keep the proper engine
temperature.
Caution
Do not use anything other than a mix of
DEX-COOL coolant that meets GM
Standard GMW3420 and clean, drinkable
water. Anything else can cause damage
to the engine cooling system and the
vehicle, which would not be covered by
the vehicle warranty.