fuel BUICK REGAL 2018 Owner's Guide

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-
11486030) - 2018 - crc - 3/23/18
146 Instruments and Controls
If equipped with HUD, some
information concerning the
operation of the vehicle is projected
onto the windshield. The information
is projected through the HUD lens
on the driver side of the instrument
panel and focused out toward the
front of the vehicle.
Caution
If you try to use the HUD image
as a parking aid, you may
misjudge the distance and
damage your vehicle. Do not use
the HUD image as a parking aid.
The HUD information can be
displayed in various languages. The
speedometer reading and other
numerical values can be displayed
in either English or metric units.
The language selection is changed
through settings and the units of
measurement is changed through
the instrument cluster. See
“Settings” in the Infotainment
Manual and “Options”under
Instrument Cluster 0124.
HUD Display on the Vehicle
Windshield
The HUD may display some of the
following vehicle information and
vehicle messages or alerts:
. Speed
. Tachometer
. Audio
. Phone
. Navigation
. Collision Alert
. Adaptive Cruise Control and Set
Speed .
Lane Departure/Lane Keep
Assist
. Low Fuel
Some vehicle messages or alerts
displayed in the HUD may be
cleared by using the steering wheel
controls. See Vehicle Messages
0 149.
The HUD control is to the left of the
steering wheel.
To adjust the HUD image:
1. Adjust the driver seat to a comfortable position.
2. Start the engine.
3. Use the following settings to adjust the HUD.

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-
11486030) - 2018 - crc - 3/23/18
Climate Controls 169
9. ON/OFF (Power)
10. AUTO (Automatic Operation)
Climate Control Display
1. Outside Temperature Display
2. Fan Control
3. Driver and Passenger Temperature Controls
4. Sync (Synchronized Temperature)
5. Recirculation
6. Air Delivery Mode Control
7. Auto (Automatic Operation)
8. A/C (Air Conditioning) 9. On/Off (Power)
The fan, air delivery mode, air
conditioning, driver and passenger
temperatures, and Sync settings
can be controlled by touching
CLIMATE on the infotainment Home
Page or the climate button in the
climate control display application
tray. A selection can then be made
on the front climate control page
displayed. See the infotainment
manual.
Climate Control Status Display
The climate control status display
appears briefly when the center
stack climate controls are adjusted.
The air delivery mode can be
adjusted on the climate control
display.
Climate Control Influence on Fuel
Economy
The climate control system depends
on other vehicle systems for heat
and power input. Certain climate
control settings can lead to higher
fuel usage.
The following climate control
settings use more fuel:
. MAX air conditioning mode
. Defrost mode
. Extreme temperature settings,
such as 15° C (60° F) or 32° C
(90° F)
. High fan speed settings
To help reduce fuel usage:
. Use the full automatic control as
described under “Automatic
Operation.”

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-
11486030) - 2018 - crc - 3/23/18
170 Climate Controls
.Select a temperature setting that
is higher in hot weather and
lower in cold weather.
. Turn off the air conditioning
when it is not needed.
. Only use defrost to clear the
windows.
Automatic Operation
The system automatically controls
the fan speed, air delivery, air
conditioning, and recirculation in
order to heat or cool the vehicle to
the desired temperature.
When AUTO is lit, all four functions
operate automatically. Each function
can also be manually set and the
selected setting is displayed.
Functions not manually set will
continue to be automatically
controlled, even if the AUTO
indicator is not lit.
For automatic operation:
1. Press AUTO. 2. Set the temperature. Allow the
system time to stabilize. Adjust
the temperature as needed for
best comfort.
To improve fuel efficiency and to
cool the vehicle faster with A/C on,
recirculation may be automatically
selected in warm weather. Press
@to select recirculation; press it
again to select outside air.
Driver and Passenger
Temperature Controls : The
temperature can be adjusted
separately for the driver and the
passenger. Turn the knob clockwise
or counterclockwise to increase or
decrease the driver or passenger
temperature setting.
The driver and passenger
temperatures can also be adjusted
by touching the controls on the
climate control display.
SYNC : Press to link the passenger
temperature setting to the driver
setting. SYNC will be highlighted.
When the passenger setting is
adjusted, SYNC will be darkened.
Manual Operation
CLIMATE : Press CLIMATE to show
the climate control display.
ON/OFF : Press to turn the fan on
or off.
hi: Touch or press the fan controls
on the climate control display or
center stack to increase or decrease
the fan speed. The fan speed
setting displays.
Pressing either control cancels
automatic fan control and the fan is
controlled manually. Press AUTO to
return to automatic operation.
Air Delivery Mode Control : When
the climate information is displayed,
touch
6,Y, orXon the climate
control display to change the
direction of airflow. Any combination
of the three controls can be
selected. The selected air delivery
mode is lit. Pressing any control
cancels automatic air delivery
control and the direction of the
airflow is controlled manually. Press
AUTO to return to automatic
operation.

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-
11486030) - 2018 - crc - 3/23/18
Climate Controls 171
To change the current mode, select
one or more of the following:
6:Air is directed to the floor
outlets, with some air to the
windshield and side windows.
Y: Air is directed to the instrument
panel outlets.
X: Clears the windows of fog or
moisture. Air is directed to the
windshield.
1MAX : Air is directed to the
windshield, the fan runs at a higher
speed, and the temperature of the
air is increased if not already at
maximum. This mode overrides the
previous mode selected and clears
fog or frost from the windshield
more quickly. When the control is
pressed again, the system returns
to the previous mode setting and
fan speed.
For best results, clear all snow and
ice from the windshield before
defrosting.
A/C (Air Conditioning) : Touch A/C
on the climate control display to
cycle between the MAX, ECO, and OFF modes. The MAX, ECO,
or OFF indicator will appear on the
display. If the fan is turned off, the
air conditioner will not run and the
indicator light will turn off.
Touch AUTO to return to automatic
operation and the air conditioner
runs automatically as needed. The
A/C will return to ECO a/c operation.
For MAX a/c, touch A/C.
For ECO a/c, touch A/C again. This
setting balances fuel economy and
air conditioning comfort. This setting
allows higher humidity inside the
vehicle, and window fogging may
occur before the engine restarts.
@:
Press to turn on recirculation.
An indicator light comes on. Air is
recirculated to quickly cool the
inside of the vehicle or to reduce the
entry of outside air and odors.
If selected during cool or cold
weather, the windshield and
windows may fog. Turn off
recirculation to help clear the
windshield and windows. Auto Defog :
If equipped, the
climate control system may have a
sensor to automatically detect high
humidity inside the vehicle. When
high humidity is detected, the
climate control system may adjust to
outside air supply and turn on the
air conditioner. The fan speed may
slightly increase to help prevent
fogging. If the climate control
system does not detect possible
window fogging, it returns to normal
operation.
To turn Auto Defog off or on, see
“Climate and Air Quality” under
Vehicle Personalization 0150.
Ionizer : If equipped with an ionizer,
this feature helps to clean the air
inside the vehicle and remove
contaminants such as pollen, odors,
and dust. If the climate control
system is on and the ionizer is
enabled, the ionizer status indicator
will be lit on the climate control
display. To turn the ionizer on or off,
see “Climate and Air Quality” under
Vehicle Personalization 0150.

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-
11486030) - 2018 - crc - 3/23/18
Driving and Operating 175
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . 176
Defensive Driving . . . . . . . . . . . . . 177
Drunk Driving . . . . . . . . . . . . . . . . . 177
Control of a Vehicle . . . . . . . . . . . 177
Braking . . . . . . . . . . . . . . . . . . . . . . . 177
Steering . . . . . . . . . . . . . . . . . . . . . . 178
Off-Road Recovery . . . . . . . . . . . 179
Loss of Control . . . . . . . . . . . . . . . 179
Driving on Wet Roads . . . . . . . . 180
Hill and Mountain Roads . . . . . 180
Winter Driving . . . . . . . . . . . . . . . . 181
If the Vehicle Is Stuck . . . . . . . . 182
Vehicle Load Limits . . . . . . . . . . . 183
Starting and Operating
New Vehicle Break-In . . . . . . . . . 186
Ignition Positions . . . . . . . . . . . . . 187
Starting the Engine . . . . . . . . . . . 188
Engine Heater . . . . . . . . . . . . . . . . 190
Retained AccessoryPower (RAP) . . . . . . . . . . . . . . . . 191
Shifting Into Park . . . . . . . . . . . . . 191
Shifting out of Park . . . . . . . . . . . 192 Parking over Things
That Burn . . . . . . . . . . . . . . . . . . . 193
Extended Parking . . . . . . . . . . . . 193
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 193
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . 194
Automatic Transmission
Automatic Transmission . . . . . . 194
Manual Mode . . . . . . . . . . . . . . . . . 196
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . 197
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 198
Electric Parking Brake . . . . . . . . 198
Brake Assist . . . . . . . . . . . . . . . . . . 200
Hill Start Assist (HSA) . . . . . . . . 200
Ride Control Systems
Traction Control/Electronic
Stability Control . . . . . . . . . . . . . 201
Selective Ride Control (GS Models Only) . . . . . . . . . . . . . . . . 203
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 204
Adaptive Cruise Control . . . . . . 206
Driver Assistance Systems
Driver Assistance Systems . . . 213
Assistance Systems forParking or Backing . . . . . . . . . . 214
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . 217
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . 217
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . 219
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . 220
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . 223
Lane Change Alert (LCA) . . . . . 223
Lane Departure Warning (LDW) . . . . . . . . . . . . . 225
Lane Keep Assist (LKA) . . . . . . 225
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 227
California Fuel Requirements . . . . . . . . . . . . . . . 228
Fuels in Foreign Countries . . . 228
Fuel Additives . . . . . . . . . . . . . . . . 228
Filling the Tank . . . . . . . . . . . . . . . 229
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . 230

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-
11486030) - 2018 - crc - 3/23/18
182 Driving and Operating
{Warning
Snow can trap engine exhaust
under the vehicle. This may
cause exhaust gases to get
inside. Engine exhaust contains
carbon monoxide (CO), which
cannot be seen or smelled. It can
cause unconsciousness and even
death.
If the vehicle is stuck in snow:. Clear snow from the base of
the vehicle, especially any
blocking the exhaust pipe.
. Open a window about 5 cm
(2 in) on the vehicle side
that is away from the wind,
to bring in fresh air.
. Fully open the air outlets on
or under the instrument
panel.
. Adjust the climate control
system to circulate the air
inside the vehicle and set
(Continued)
Warning (Continued)
the fan speed to the highest
setting. See“Climate
Control Systems.”
For more information about CO,
see Engine Exhaust 0193.
To save fuel, run the engine for
short periods to warm the vehicle
and then shut the engine off and
partially close the window. Moving
about to keep warm also helps.
If it takes time for help to arrive,
when running the engine, push the
accelerator pedal slightly so the
engine runs faster than the idle
speed. This keeps the battery
charged to restart the vehicle and to
signal for help with the headlamps.
Do this as little as possible, to
save fuel.
If the Vehicle Is Stuck
Slowly and cautiously spin the
wheels to free the vehicle when
stuck in sand, mud, ice, or snow. If stuck too severely for the traction
system to free the vehicle, turn the
traction system off and use the
rocking method. See
Traction
Control/Electronic Stability Control
0 201.
{Warning
If the vehicle's tires spin at high
speed, they can explode, and you
or others could be injured. The
vehicle can overheat, causing an
engine compartment fire or other
damage. Spin the wheels as little
as possible and avoid going
above 56 km/h (35 mph).
Rocking the Vehicle to Get
it Out
Turn the steering wheel left and
right to clear the area around the
front wheels. Turn off any traction
system. Shift back and forth
between R (Reverse) and a low
forward gear, spinning the wheels
as little as possible. To prevent
transmission wear, wait until the

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-
11486030) - 2018 - crc - 3/23/18
Driving and Operating 185
3.Available Occupant and
Cargo Weight = 317 kg
(700 lbs).
Example 2
1.Vehicle Capacity Weight
for Example 2 = 453 kg
(1,000 lbs).
2.Subtract Occupant
Weight @ 68 kg (150 lbs)
× 5 = 340 kg (750 lbs).
3.Available Cargo Weight
= 113 kg (250 lbs).
Example 3
1.Vehicle Capacity Weight
for Example 3 = 453 kg
(1,000 lbs).
2.Subtract Occupant
Weight @ 91 kg
(200 lbs) × 5 = 453 kg
(1,000 lbs).
3.Available Cargo Weight
= 0 kg (0 lbs).
Refer to the vehicle's Tire and
Loading Information label for
specific information about the
vehicle's capacity weight and
seating positions. The combined weight of the driver, passengers,
and cargo should never exceed
the vehicle's capacity weight.
Certification Label
Label Example
A vehicle-specific Certification
label is attached to the vehicle's
center pillar (B-pillar). The label
may show the gross weight
capacity of the vehicle, called
the Gross Vehicle Weight Rating
(GVWR). The GVWR includes
the weight of the vehicle, all
occupants, fuel, and cargo.

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-
11486030) - 2018 - crc - 3/23/18
190 Driving and Operating
The vehicle has a fuel saving stop/
start system to shut off the engine to
help conserve fuel.
Auto Engine Stop/Start
When the brakes are applied and
the vehicle is at a complete stop,
the engine may turn off. When
stopped, the tachometer displays
AUTO STOP. SeeTachometer
0 128. When the brake pedal is
released or the accelerator pedal is
pushed, the engine will restart.
Engine Heater
The engine coolant heater,
if available, 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 coolant heater at least
four hours before starting the
vehicle. An internal thermostat in
the plug-end of the cord will prevent
engine coolant heater operation at
temperatures above −18 °C (0 °F).
To Use the Engine Coolant
Heater
1. Turn off the engine.
2. Open the hood and unwrap the
electrical cord.
The electrical cord is located
on the passenger side of the
engine compartment, between
the fender and the air cleaner.
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 or
extension cord, could make
(Continued)

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-
11486030) - 2018 - crc - 3/23/18
Driving and Operating 193
Parking over Things
That Burn
{Warning
Things that can burn could touch
hot exhaust parts under the
vehicle and ignite. Do not park
over papers, leaves, dry grass,
or other things that can burn.
Extended Parking
It is best not to park with the vehicle
running. If the vehicle is left running,
be sure it will not move and there is
adequate ventilation.
SeeShifting Into Park 0191 and
Engine Exhaust 0193. If the vehicle is left parked and
running with the Remote Keyless
Entry (RKE) transmitter outside the
vehicle, it will turn off after one hour.
If the vehicle is left parked and
running with the RKE transmitter
inside the vehicle, it will turn off after
two hours.
The vehicle could turn off sooner if it
is parked on a hill, due to lack of
available fuel.
The timer will reset if the vehicle is
taken out of P (Park) while it is
running.
Engine Exhaust
{Warning
Engine exhaust contains carbon
monoxide (CO), which cannot be
seen or smelled. Exposure to CO
can cause unconsciousness and
even death.
Exhaust may enter the vehicle if:
. The vehicle idles in areas
with poor ventilation
(parking garages, tunnels,
deep snow that may block
underbody airflow or tail
pipes).
. The exhaust smells or
sounds strange or different.
. The exhaust system leaks
due to corrosion or damage.
. The vehicle exhaust system
has been modified,
damaged, or improperly
repaired.
(Continued)

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-
11486030) - 2018 - crc - 3/23/18
196 Driving and Operating
Warning (Continued)
vehicle could move very rapidly.
You could lose control and hit
people or objects. Do not shift
into a drive gear while the engine
is running at high speed.
Caution
Shifting out of P (Park) or
N (Neutral) with the engine
running at high speed may
damage the transmission. The
repairs would not be covered by
the vehicle warranty. Be sure the
engine is not running at high
speed when shifting the vehicle.
Caution
A transmission hot message may
display if the automatic
transmission fluid is too hot.(Continued)
Caution (Continued)
Driving under this condition can
damage the vehicle. Stop and idle
the engine to cool the automatic
transmission fluid. This message
clears when the transmission fluid
has cooled sufficiently.
D : This position is for normal
driving. It provides the best fuel
economy. If more power is needed
for passing, and the vehicle is:
. Going less than 56 km/h
(35 mph), push the accelerator
pedal about halfway down.
. Going about 56 km/h (35 mph) or
more, push the accelerator all
the way down.
Caution
If the vehicle does not shift gears,
the transmission could be
damaged. Have the vehicle
serviced right away. Operating Modes
The transmission may operate in a
lower gear than normal to improve
vehicle performance. The engine
speed may be higher and there may
be an increase in noise during the
following conditions:
.
When climbing a grade
. When driving downhill
. When driving in hot
temperatures or at high altitude
Manual Mode
Driver Shift Control (DSC)
Caution
Driving with the engine at a high
rpm without upshifting while using
Driver Shift Control (DSC), could
damage the vehicle. Always
upshift when necessary while
using DSC.