engine coolant BUICK REGAL 2020 Owners Manual

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Introduction 3
Danger, Warning, and
Caution
Warning messages found on vehicle
labels and in this manual describe
hazards and what to do to avoid or
reduce them.
{Danger
Danger indicates a hazard with a
high level of risk which will result
in serious injury or death.
{Warning
Warning indicates a hazard that
could result in injury or death.
Caution
Caution indicates a hazard that
could result in property or vehicle
damage.
A circle with a slash through it is a
safety symbol which means“Do
not,” “Do not do this,” or“Do not let
this happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with
the text describing the operation or
information relating to a specific
component, control, message,
gauge, or indicator.
M: Shown when the owner ’s
manual has additional instructions
or information.
*: Shown when the service
manual has additional instructions
or information.
0: Shown when there is more
information on another page —
“see page.” Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. See the
features in this manual for
information.
u:
Air Conditioning System
G:Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
$:Brake System Warning Light
9:Dispose of Used Components
Properly
P: Do Not Apply High Pressure
Water
B: Engine Coolant Temperature
_: Flame/Fire Prohibited
H:Flammable
[:Forward Collision Alert
R: Fuse Block Cover Lock
Location
+: Fuses
j:ISOFIX/LATCH System Child
Restraints

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Keys, Doors, and Windows 17
Conditions in Which Remote Start
Will Not Work
.The RKE transmitter is in the
vehicle.
. The ignition is on.
. The hood is not closed.
. The hazard warning flashers
are on.
. The malfunction indicator lamp
is on.
. The engine coolant temperature
is too high.
. The oil pressure is low.
. Two remote vehicle starts, or a
single remote start with an
extension, have already
been used.
. The vehicle is not in P (Park).Door Locks
{Warning
Unlocked doors can be
dangerous.
. Passengers, especially
children, can easily open
the doors and fall out of a
moving vehicle. The doors
can be unlocked and
opened while the vehicle is
moving. The chance of
being thrown out of the
vehicle in a crash is
increased if the doors are
not locked. So, all
passengers should wear
seat belts properly and the
doors should be locked
whenever the vehicle is
driven.
. Young children who get into
unlocked vehicles may be
unable to get out. A child
can be overcome by
extreme heat and can suffer
(Continued)
Warning (Continued)
permanent injuries or even
death from heat stroke.
Always lock the vehicle
whenever leaving it.
. Outsiders can easily enter
through an unlocked door
when you slow down or stop
the vehicle. Locking the
doors can help prevent this
from happening.
To lock/unlock the doors from
outside the vehicle:
. Press
QorKon the Remote
Keyless Entry (RKE) transmitter.
See Remote Keyless Entry
(RKE) System Operation 08.
. Use Keyless Access. See
“Keyless Access Operation” in
Remote Keyless Entry (RKE)
System Operation 08.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Instruments and Controls 99
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 100
Steering Wheel Controls . . . . . . 100
Heated Steering Wheel . . . . . . . 100
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Windshield Wiper/Washer . . . . 100
Rear Window Wiper/Washer . . . . . . . . . . . . . . . . . . . . . 102
Compass . . . . . . . . . . . . . . . . . . . . . 102
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 102
Power Outlets . . . . . . . . . . . . . . . . 103
Wireless Charging . . . . . . . . . . . . 103
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . 106
Instrument Cluster . . . . . . . . . . . . 107
Speedometer . . . . . . . . . . . . . . . . . 113
Odometer . . . . . . . . . . . . . . . . . . . . . 113
Tachometer . . . . . . . . . . . . . . . . . . . 113
Fuel Gauge . . . . . . . . . . . . . . . . . . . 113
Engine Oil Temperature Gauge
(Uplevel) . . . . . . . . . . . . . . . . . . . . 115 Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 115
Voltmeter Gauge (Uplevel) . . . . 116
Seat Belt Reminders . . . . . . . . . . 117
Airbag Readiness Light . . . . . . . 118
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 118
Charging System Light . . . . . . . 119
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . 119
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 121
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 122
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 122
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 122
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . 123
Vehicle Ahead Indicator . . . . . . 123
Pedestrian Ahead Indicator . . . 124
Traction Off Light . . . . . . . . . . . . . 124
StabiliTrak OFF Light . . . . . . . . . 124
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . 125
Engine Coolant Temperature Warning Light (Uplevel) . . . . . 125
Tire Pressure Light . . . . . . . . . . . 125
Engine Oil Pressure Light . . . . 126 Low Fuel Warning Light . . . . . . 126
Security Light . . . . . . . . . . . . . . . . . 127
High-Beam On Light . . . . . . . . . . 127
Adaptive Forward Lighting
(AFL) Light . . . . . . . . . . . . . . . . . . 127
Front Fog Lamp Light . . . . . . . . . 127
Lamps On Reminder . . . . . . . . . 128
Cruise Control Light . . . . . . . . . . 128
Door Ajar Light . . . . . . . . . . . . . . . 128
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . 128
Head-Up Display (HUD) . . . . . . 133
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 137
Engine Power Messages . . . . . 137
Vehicle Speed Messages . . . . . 138
Vehicle Personalization
Vehicle Personalization . . . . . . . 138
Universal Remote System
Universal Remote System . . . . 143
Universal Remote System Programming . . . . . . . . . . . . . . . 143
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . 146

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Instruments and Controls 115
Engine Oil Temperature
Gauge (Uplevel)
Metric
English
This gauge shows the engine oil
temperature.
If the gauge pointer moves into the
high end, it means that the engine
oil has overheated. If the vehicle
has been operated under normal
driving conditions, pull off the road,
stop the vehicle, and turn off the
engine as soon as possible.
See Engine Oil 0238.
Engine Coolant
Temperature Gauge
Midlevel English Shown, Base
Level Similar

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
116 Instruments and Controls
Midlevel Metric Shown, Base LevelSimilar
Uplevel Metric
Uplevel English
This gauge shows the engine
coolant temperature.
If the gauge pointer moves toward
the warning area at the high end of
the gauge, the engine is too hot.
The engine coolant temperature
warning light comes on when the
engine is too hot. See Engine
Coolant Temperature Warning Light
(Uplevel) 0125.
This reading indicates the same
thing as the warning light. It means
that the engine coolant has
overheated. If the vehicle has been
operating under normal driving conditions, pull off the road, stop the
vehicle, and turn off the engine as
soon as possible. See
Engine
Overheating 0247.
Voltmeter Gauge
(Uplevel)
When the ignition is on, this gauge
indicates the battery voltage.
When the engine is running, this
gauge shows the condition of the
charging system. The gauge can
transition from a higher to lower or a
lower to higher reading. This is
normal. If the vehicle is operating

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Instruments and Controls 125
Traction Control System
(TCS)/StabiliTrak Light
This light comes on briefly when the
engine is started.
If the light does not come on, have
the vehicle serviced by your dealer.
If the system is working normally,
the indicator light turns off.
If the light is on and not flashing, the
TCS and potentially the StabiliTrak/
ESC system have been disabled.
A Driver Information Center (DIC)
message may display. Check the
DIC messages to determine which
feature(s) is no longer functioning
and whether the vehicle requires
service.
If the light is on and flashing, the
TCS and/or the StabiliTrak/ESC
system is actively working.See
Traction Control/Electronic
Stability Control 0191.
Engine Coolant
Temperature Warning
Light (Uplevel)
This light comes on briefly while
starting the vehicle.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light goes off.
Caution
The engine coolant temperature
warning light indicates that the
vehicle has overheated. Driving
with this light on can damage the
(Continued)
Caution (Continued)
engine and it may not be covered
by the vehicle warranty. See
Engine Overheating0247.
The engine coolant temperature
warning light comes on when the
engine has overheated.
If this happens, pull over and turn
off the engine as soon as possible.
See Engine Overheating 0247.
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine is
started. It provides information
about tire pressures and the TPMS.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Driving and Operating 179
Warning (Continued)
restart and move unexpectedly.
Always shift to P (Park), and then
turn the ignition off before exiting
the vehicle.
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. See Tachometer
0 113. When the brake pedal is
released or the accelerator pedal is
pressed, the engine will restart.
To maintain vehicle performance,
other conditions may cause the
engine to automatically restart
before the brake pedal is released.
Auto Stops may not occur and/or
auto restarts may occur because:
. The climate control settings
require the engine to be running
to cool or heat the vehicle
interior. .
The vehicle battery charge
is low.
. The vehicle battery has recently
been disconnected.
. Minimum vehicle speed has not
been reached since the last
Auto Stop.
. The accelerator pedal is
pressed.
. The engine or transmission is
not at the required operating
temperature.
. The outside temperature is not
in the required operating range.
. The vehicle is in any gear other
than D (Drive).
. Tow/Haul Mode or other driver
modes have been selected.
. The vehicle is on a steep hill or
grade.
. The driver door has been
opened or driver seat belt has
been unbuckled.
. The hood has been opened. .
The Auto Stop has reached the
maximum allowed time.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.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
224 Driving and Operating
Passing
More passing distance is needed
when towing a trailer. The
combination of the vehicle and
trailer will not accelerate as quickly
and is much longer than the vehicle
alone. It is necessary to go much
farther beyond the passed vehicle
before returning to the lane. Pass
on level roadways. Avoid passing
on hills if possible.
Backing Up
Hold the bottom of the steering
wheel with one hand. To move the
trailer to the left, move that hand to
the left. To move the trailer to the
right, move that hand to the right.
Always back up slowly and,
if possible, have someone
guide you.
Making TurnsCaution
Turn more slowly and make wider
arcs when towing a trailer to
prevent damage to your vehicle.
Making very sharp turns could
cause the trailer to contact the
vehicle.
Make wider turns than normal when
towing, so trailer will not go over soft
shoulders, over curbs, or strike road
signs, trees, or other objects.
Always signal turns well in advance.
Do not steer or brake suddenly.
Driving on Grades
Reduce speed and shift to a lower
gear before starting down a long or
steep downhill grade. If the
transmission is not shifted down, the
brakes may overheat and result in
reduced braking efficiency. The vehicle can tow in D (Drive).
Shift the transmission to a lower
gear if the transmission shifts too
often under heavy loads and/or hilly
conditions.
When towing at higher altitudes,
engine coolant will boil at a lower
temperature than at lower altitudes.
If the engine is turned off
immediately after towing at high
altitude on steep uphill grades, the
vehicle could show signs similar to
engine overheating. To avoid this,
let the engine run, preferably on
level ground, with the transmission
in P (Park) for a few minutes before
turning the engine off. If the
overheat warning comes on, see
Engine Overheating
0247.Parking on Hills
{Warning
To prevent serious injury or death,
always park your vehicle and
trailer on a level surface when
possible.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
236 Vehicle Care
1.Engine Air Cleaner/Filter 0242.
2. Engine Oil Fill Cap. See Engine Oil 0238.
3. Engine Oil Dipstick. See Engine Oil 0238.
4. Engine Cooling Fan (Out of View). See Cooling System
0 243.
5. Brake Fluid Reservoir. See Brake Fluid 0250.
6. Battery (Under Cover). See Battery - North America 0251.
7. Coolant Surge Tank and Pressure Cap. See Cooling
System 0243.
8. Remote Positive (+) Battery Terminal. See Jump Starting -
North America 0306.
9. Engine Compartment Fuse
Block 0259.
10. Windshield Washer Fluid Reservoir. See Washer Fluid
0 248.
11. Remote Negative (-) Ground Terminal. See Jump Starting -
North America 0306.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
238 Vehicle Care
1. Windshield Washer FluidReservoir. See Washer Fluid
0 248.
2. Engine Oil Fill Cap. See Engine Oil 0238.
3. Engine Oil Dipstick. See Engine Oil 0238.
4. Engine Cooling Fans (Out of View). See Cooling System
0 243
5. Brake Fluid Reservoir. See Brake Fluid 0250.
6. Engine Air Cleaner/Filter 0242.
7. Coolant Surge Tank and Pressure Cap. See Cooling
System 0243.
8. Remote Positive (+) Battery Terminal. See Jump Starting -
North America 0306.
9. Engine Compartment Fuse
Block 0259.
10. Remote Negative (-) Ground Terminal. See Jump Starting -
North America 0306.Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.
Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
. Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
. Change the engine oil at the
appropriate time. See Engine Oil
Life System 0240.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
Check the engine oil level regularly,
every 650 km (400 mi), especially
prior to a long trip. The engine oil
dipstick handle is a loop. See
Engine Compartment Overview
0235 for the location.
{Warning
The engine oil dipstick handle
may be hot; it could burn you.
Use a towel or glove to touch the
dipstick handle.
If a low oil Driver Information Center
(DIC) message displays, check the
oil level.
Follow these guidelines:
. To get an accurate reading, park
the vehicle on level ground.
Check the engine oil level after
the engine has been off for at
least two hours. Checking the
engine oil level on steep grades
or too soon after engine shutoff
can result in incorrect readings.
Accuracy improves when