2017 BUICK REGAL cooling

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9804381) - 2017 - crc - 8/30/16
16 In Brief
Climate Controls
The heating, cooling, and ventilation for the vehicle can be controlled with
this system.
1. Driver and PassengerTemperature Controls
2. Heated Front Seats (If Equipped)
3. Defrost
4. Air Delivery Mode Controls 5. Fan Control
6. SYNC (Synchronized
Temperature)
7. AUTO (Automatic Operation)
8. Recirculation
9. A/C (Air Conditioning) 10. Rear Window Defogger
11. Power
See
Dual Automatic Climate Control
System 0150.
Transmission
Manual Mode
Driver Shift Control (DSC) allows
you to shift an automatic
transmission similar to a manual
transmission. To use the DSC
feature:
1. Move the shift lever to the left from D (Drive) into the side
gate marked with (+) and (−).

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9804381) - 2017 - crc - 8/30/16
Instruments and Controls 95
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . 96
Steering Wheel Controls . . . . . . . 96
Heated Steering Wheel . . . . . . . . 96
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Windshield Wiper/Washer . . . . . . 97
Compass . . . . . . . . . . . . . . . . . . . . . . 98
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Power Outlets . . . . . . . . . . . . . . . . . 98
Cigarette Lighter . . . . . . . . . . . . . . 100
Ashtrays . . . . . . . . . . . . . . . . . . . . . . 100
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . 100
Instrument Cluster (Base Cluster) . . . . . . . . . . . . . . . . . . . . . 101
Instrument Cluster (Uplevel Cluster) . . . . . . . . . . . . . . . . . . . . . 104
Speedometer . . . . . . . . . . . . . . . . . 106
Odometer . . . . . . . . . . . . . . . . . . . . . 106
Trip Odometer . . . . . . . . . . . . . . . . 107
Tachometer . . . . . . . . . . . . . . . . . . . 107
Fuel Gauge . . . . . . . . . . . . . . . . . . . 107 Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 108
Safety Belt Reminders . . . . . . . . 109
Airbag Readiness Light . . . . . . . 110
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 110
Charging System Light . . . . . . . . 111
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . 111
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 113
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 113
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 114
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 114
Lane Departure Warning (LDW) Light . . . . . . . . . . . . . . . . . 115
Vehicle Ahead Indicator . . . . . . . 115
Traction Off Light . . . . . . . . . . . . . 115
StabiliTrak
®OFF Light . . . . . . . . 116
Traction Control System (TCS)/ StabiliTrak
®Light . . . . . . . . . . . . 116
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . 116
Tire Pressure Light . . . . . . . . . . . 117
Engine Oil Pressure Light . . . . . 117
Low Fuel Warning Light . . . . . . . 118
Security Light . . . . . . . . . . . . . . . . . 118
High-Beam On Light . . . . . . . . . . 118 Front Fog Lamp Light . . . . . . . . . 118
Lamps On Reminder . . . . . . . . . . 119
Cruise Control Light . . . . . . . . . . 119
Door Ajar Light . . . . . . . . . . . . . . . 119
Information Displays
Driver Information Center (DIC)
(Base Level) . . . . . . . . . . . . . . . . 119
Driver Information Center (DIC) (Uplevel) . . . . . . . . . . . . . . . . . . . . 122
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 125
Battery Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 125
Brake System Messages . . . . . 126
Compass Messages . . . . . . . . . . 126
Cruise Control Messages . . . . . 126
Door Ajar Messages . . . . . . . . . . 127
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . . 127
Engine Oil Messages . . . . . . . . . 128
Engine Power Messages . . . . . 129
Fuel System Messages . . . . . . . 129
Key and Lock Messages . . . . . 129
Object Detection System Messages . . . . . . . . . . . . . . . . . . . 130
Ride Control System Messages . . . . . . . . . . . . . . . . . . . 131
Security Messages . . . . . . . . . . . 132

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9804381) - 2017 - crc - 8/30/16
Instruments and Controls 127
FRONT RADAR BLOCKED—
SEE OWNER MANUAL
This message can occur under the
following conditions:
. The radar is not clean. Keep the
radar sensors free of mud, dirt,
snow, ice, and slush. Clean the
entire front and/or rear of the
vehicle. For cleaning
instructions, see Exterior Care
0 284.
. Heavy rain or snow is interfering
with the radar object detection or
camera performance.
CRUISE SET TO XXX
This message displays when the
cruise control speed is set. See
Cruise Control 0186.
NO CRUISE BRAKING GAS
PEDAL APPLIED
This message displays when
Adaptive Cruise Control (ACC) is
active and the driver is pressing the
gas pedal. When this occurs, ACC
will not brake. See Adaptive Cruise
Control 0188.
SERVICE ADAPTIVE CRUISE
CONTROL
This message displays when the
Adaptive Cruise Control (ACC)
needs service. Take the vehicle to
your dealer.
SHIFT TO PARK BEFORE
EXITING
This message may display if
Adaptive Cruise Control (ACC) is
engaged holding the vehicle at a
stop, and the driver attempts to exit
the vehicle. Put the vehicle in
P (Park) before exiting.
Door Ajar Messages
DRIVER DOOR OPEN
This message will display when the
driver door is open. Close the door
completely.
HOOD OPEN
This message will display when the
hood is open. Close the hood
completely.
LEFT REAR DOOR OPEN
This message will display when the
driver side rear door is open. Close
the door completely.
PASSENGER DOOR OPEN
This message will display when the
front passenger door is open. Close
the door completely.
RIGHT REAR DOOR OPEN
This message will display when the
passenger side rear door is open.
Close the door completely.
TRUNK OPEN
This message will display when the
trunk is open. Close the trunk
completely.
Engine Cooling System
Messages
A/C OFF DUE TO HIGH
ENGINE TEMP
This message displays when the
engine coolant becomes hotter than
the normal operating temperature.
To avoid added strain on a hot

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9804381) - 2017 - crc - 8/30/16
128 Instruments and Controls
engine, the air conditioning
compressor automatically turns off.
When the coolant temperature
returns to normal, the air
conditioning compressor turns back
on. The vehicle can continue to be
driven.
If this message continues to appear,
have the system repaired by your
dealer as soon as possible to avoid
damage to the engine.
COOLANT LEVEL LOW ADD
COOLANT
This message will display if the
coolant is low. SeeEngine Coolant
0 224.
ENGINE OVERHEATED —
IDLE ENGINE
This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to
idle until it cools down.
ENGINE OVERHEATED —
STOP ENGINE
This message displays and a
continuous chime sounds if the
engine cooling system reaches unsafe temperatures for operation.
Stop and turn off the vehicle as
soon as it is safe to do so to avoid
severe damage. This message
clears when the engine has cooled
to a safe operating temperature.
HIGH COOLANT
TEMPERATURE
This message may display if the
coolant temperature is hot. See
Engine Overheating
0227.
Engine Oil Messages
CHANGE ENGINE OIL SOON
This message displays when the
engine oil needs to be changed.
When you change the engine oil, be
sure to reset the Oil Life System.
See Engine Oil Life System 0220,
Driver Information Center (DIC)
(Base Level) 0119 orDriver
Information Center (DIC) (Uplevel)
0 122, Engine Oil 0218, and
Maintenance Schedule 0294.
ENGINE OIL HOT, IDLE
ENGINE
This message displays when the
engine oil temperature is too hot.
Stop and allow the vehicle to idle
until it cools down.
ENGINE OIL LOW —ADD OIL
On some vehicles, this message
may display when the engine oil
level is too low. Check the oil level.
See Engine Oil 0218.
OIL PRESSURE LOW —STOP
ENGINE
This message displays if low oil
pressure levels occur. Stop the
vehicle as soon as safely possible
and do not operate it until the cause
of the low oil pressure has been
corrected. Check the oil as soon as
possible and have the vehicle
serviced by your dealer.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9804381) - 2017 - crc - 8/30/16
150 Climate Controls
Climate Controls
Climate Control Systems
Dual Automatic ClimateControl System . . . . . . . . . . . . . 150
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . 153
Maintenance
Air Intake . . . . . . . . . . . . . . . . . . . . . 154
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . 154
Service . . . . . . . . . . . . . . . . . . . . . . . 154
Climate Control Systems
Dual Automatic Climate Control System
The heating, cooling, and ventilation for the vehicle can be controlled with
this system.
1. Driver and Passenger
Temperature Controls
2. Heated Front Seats (If Equipped) 3. Defrost
4. Air Delivery Mode Controls
5. Fan Control

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9804381) - 2017 - crc - 8/30/16
160 Driving and Operating
For the 2.0L engine: Add and keep
the oil level at 1 L (1 qt) above the
high mark when driving under these
conditions. For information on how
to check and add oil, seeEngine Oil
0 218.
Driving on Wet Roads
Rain and wet roads can reduce
vehicle traction and affect your
ability to stop and accelerate.
Always drive slower in these types
of driving conditions and avoid
driving through large puddles and
deep-standing or flowing water.
{Warning
Wet brakes can cause crashes.
They might not work as well in a
quick stop and could cause
pulling to one side. You could
lose control of the vehicle.
(Continued)
Warning (Continued)
After driving through a large
puddle of water or a car/vehicle
wash, lightly apply the brake
pedal until the brakes work
normally.
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
vehicle to be carried away. If this
happens, you and other vehicle
occupants could drown. Do not
ignore police warnings and be
very cautious about trying to drive
through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water
can build up under the vehicle's
tires so they actually ride on the
water. This can happen if the road is
wet enough and you are going fast
enough. When the vehicle is
hydroplaning, it has little or no
contact with the road. There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.
Allow extra following distance.
. Pass with caution.
. Keep windshield wiping
equipment in good shape.
. Keep the windshield washer fluid
reservoir filled.
. Have good tires with proper
tread depth. See Tires0243.
. Turn off cruise control.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips include:
.
Keep the vehicle serviced and in
good shape.
. Check all fluid levels and brakes,
tires, cooling system, and
transmission.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9804381) - 2017 - crc - 8/30/16
Vehicle Care 211
Vehicle Care
General Information
General Information . . . . . . . . . . 212
California Proposition65 Warning . . . . . . . . . . . . . . . . . 212
California Perchlorate Materials Requirements . . . . . 212
Accessories and Modifications . . . . . . . . . . . . . . . . 213
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 213
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 214
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 215
Engine Oil . . . . . . . . . . . . . . . . . . . . 218
Engine Oil Life System . . . . . . . 220
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 221
Engine Air Cleaner/Filter . . . . . . 222
Cooling System . . . . . . . . . . . . . . 223
Engine Coolant . . . . . . . . . . . . . . . 224
Engine Overheating . . . . . . . . . . 227
Washer Fluid . . . . . . . . . . . . . . . . . 228
Brakes . . . . . . . . . . . . . . . . . . . . . . . 229
Brake Fluid . . . . . . . . . . . . . . . . . . . 230
Battery - North America . . . . . . 231
All-Wheel Drive . . . . . . . . . . . . . . . 232 Starter Switch Check . . . . . . . . . 232
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 232
Ignition Transmission Lock
Check . . . . . . . . . . . . . . . . . . . . . . . 233
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 233
Wiper Blade Replacement . . . . 233
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 234
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 234
Halogen Bulbs . . . . . . . . . . . . . . . . 234
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 235
Headlamps, Front Turn Signal and Parking Lamps . . . . . . . . . 235
Fog Lamps . . . . . . . . . . . . . . . . . . . 235
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 236
License Plate Lamp . . . . . . . . . . 236
Replacement Bulbs . . . . . . . . . . . 237
Electrical System
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . 237
Electrical System Overload . . . 238
Fuses and Circuit Breakers . . . 238 Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 239
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 241
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 243
All-Season Tires . . . . . . . . . . . . . . 244
Winter Tires . . . . . . . . . . . . . . . . . . 244
Low-Profile Tires . . . . . . . . . . . . . 244
Summer Tires . . . . . . . . . . . . . . . . 245
Tire Sidewall Labeling . . . . . . . . 245
Tire Designations . . . . . . . . . . . . . 247
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 248
Tire Pressure . . . . . . . . . . . . . . . . . 251
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . 252
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 252
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 253
Tire Inspection . . . . . . . . . . . . . . . . 257
Tire Rotation . . . . . . . . . . . . . . . . . 257
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 258
Buying New Tires . . . . . . . . . . . . . 259
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 260
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 261

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9804381) - 2017 - crc - 8/30/16
Vehicle Care 223
To inspect or replace the engine air
cleaner/filter:1. Disconnect the outlet duct by loosening the air duct
clamp (2).
2. Disconnect the electrical connector (3).
3. Remove the screws (1) on top of the engine air cleaner/filter
housing.
4. Lift the filter cover housing away from the engine air
cleaner/filter housing.
5. Pull out the filter.
6. Inspect or replace the engine air cleaner/filter.
7. Reverse Steps 2–4 to reinstall the filter cover housing.{Warning
Operating the engine with the air
cleaner/filter off can cause you or
others to be burned. The air
cleaner not only cleans the air; it
helps to stop flames if the engine
backfires. Use caution when
working on the engine and do not
drive with the air cleaner/filter off.
Caution
If the air cleaner/filter is off, dirt
can easily get into the engine,
which could damage it. Always
have the air cleaner/filter in place
when you are driving.
Cooling System
The cooling system allows the
engine to maintain the correct
working temperature.
When it is safe to lift the hood:
2.0L L4 Turbo Engine
1. Engine Cooling Fans (Out
of View)
2. Coolant Surge Tank and Pressure Cap