2016 BUICK REGAL heating

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159380) - 2016 - CRC - 2/23/16
Vehicle Care 219
Vehicle Care
General Information
General Information . . . . . . . . . . 220
California Proposition65 Warning . . . . . . . . . . . . . . . . . 220
California Perchlorate Materials Requirements . . . . . 220
Accessories and Modifications . . . . . . . . . . . . . . . . 221
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 221
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 222
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 223
Engine Oil . . . . . . . . . . . . . . . . . . . . 228
Engine Oil Life System . . . . . . . 230
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 231
Engine Air Cleaner/Filter . . . . . . 231
Cooling System . . . . . . . . . . . . . . 233
Engine Coolant . . . . . . . . . . . . . . . 235
Engine Overheating . . . . . . . . . . 237
Washer Fluid . . . . . . . . . . . . . . . . . 239
Brakes . . . . . . . . . . . . . . . . . . . . . . . 239
Brake Fluid . . . . . . . . . . . . . . . . . . . 240
Battery - North America . . . . . . 241
All-Wheel Drive . . . . . . . . . . . . . . . 242 Starter Switch Check . . . . . . . . . 243
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 243
Ignition Transmission Lock
Check . . . . . . . . . . . . . . . . . . . . . . . 243
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 243
Wiper Blade Replacement . . . . 244
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 245
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 245
Halogen Bulbs . . . . . . . . . . . . . . . . 245
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 245
Headlamps, Front Turn Signal and Parking Lamps . . . . . . . . . 246
Fog Lamps . . . . . . . . . . . . . . . . . . . 246
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 246
License Plate Lamp . . . . . . . . . . 247
Replacement Bulbs . . . . . . . . . . . 248
Electrical System
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . 248
Electrical System Overload . . . 248
Fuses and Circuit Breakers . . . 249 Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 249
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 252
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 253
All-Season Tires . . . . . . . . . . . . . . 254
Winter Tires . . . . . . . . . . . . . . . . . . 254
Summer Tires . . . . . . . . . . . . . . . . 255
Tire Sidewall Labeling . . . . . . . . 255
Tire Designations . . . . . . . . . . . . . 257
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 258
Tire Pressure . . . . . . . . . . . . . . . . . 261
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . 262
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 262
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 264
Tire Inspection . . . . . . . . . . . . . . . . 267
Tire Rotation . . . . . . . . . . . . . . . . . 267
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 268
Buying New Tires . . . . . . . . . . . . . 269
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 270
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 270

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159380) - 2016 - CRC - 2/23/16
Vehicle Care 235
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 0237.
What to Use
{Warning
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids, can boil before
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
mixture, the engine could get too
hot but you would not get the
(Continued)
Warning (Continued)
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.
Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
coolant. If using this mixture,
nothing else needs to be added.
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
If improper coolant mixture,
inhibitors, or additives are used in
the vehicle cooling system, the
engine could overheat and be
damaged. Too much water in the
mixture can freeze and crack
engine cooling parts. The repairs
would not be covered by the
vehicle warranty. Use only the
proper mixture of engine coolant
for the cooling system. See
Recommended Fluids and
Lubricants 0315.
Never dispose of engine coolant by
putting it in the trash, pouring it on
the ground, or into sewers, streams,
or bodies of water. Have the coolant
changed by an authorized service
center, familiar with legal
requirements regarding used
coolant disposal. This will help
protect the environment and your
health.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159380) - 2016 - CRC - 2/23/16
Vehicle Care 237
2.0L L4 Turbo Engine Shown, 2.4LL4 Engine with or without eAssist Similar
1. Remove the coolant surge tank pressure cap when the cooling
system, including the coolant
surge tank pressure cap and
upper radiator hose, is no
longer hot.
Turn the pressure cap slowly
counterclockwise about
one-quarter of a turn. If you
hear a hiss, wait for that to
stop. This will allow any
pressure still left to be vented
out the discharge hose.
2. Keep turning the pressure cap slowly and remove it.
3. Fill the coolant surge tank withthe proper DEX-COOL coolant
mixture to the indicated
level mark.
4. With the coolant surge tank pressure cap off, start the
engine and let it run until you
can feel the upper radiator
hose getting hot. Watch out for
the engine cooling fans.
By this time, the coolant level
inside the coolant surge tank
may be lower. If the level is
lower, add more of the proper
DEX-COOL coolant mixture to the coolant surge tank until the
level reaches the indicated
level mark.
5. Replace the pressure cap tightly.
Check the level in the coolant surge
tank when the cooling system has
cooled down. If the coolant is
not at the proper level, repeat
Steps 1–3 and reinstall the pressure
cap. If the coolant still is not at the
proper level when the system cools
down again, see your dealer.
Engine Overheating
The vehicle has an engine coolant
temperature gauge and may also
have an engine coolant temperature
warning light on the instrument
cluster to warn of engine
overheating. See Engine Coolant
Temperature Gauge 0112 and
Engine Coolant Temperature
Warning Light 0121.
If it is decided not to lift the hood
when this warning appears, but
instead get service help right away,
see Roadside Assistance
Program 0326.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159380) - 2016 - CRC - 2/23/16
238 Vehicle Care
If it is decided to lift the hood, make
sure the vehicle is parked on a level
surface.
Then check to see if the engine
cooling fans are running. If the
engine is overheating, both fans
should be running. If they are not,
do not continue to run the engine,
and have the vehicle serviced.
Caution
Running the engine without
coolant may cause damage or a
fire. Vehicle damage would not be
covered by the vehicle warranty.
If Steam Is Coming from the
Engine Compartment
{Warning
Steam from an overheated engine
can burn you badly, even if you
just open the hood. Stay away
from the engine if you see or hear
steam coming from it. Just turn it(Continued)
Warning (Continued)
off and get everyone away from
the vehicle until it cools down.
Wait until there is no sign of
steam or coolant before you open
the hood.
If you keep driving when the
engine is overheated, the liquids
in it can catch fire. You or others
could be badly burned. Stop the
engine if it overheats, and get out
of the vehicle until the engine
is cool.
If No Steam Is Coming from
the Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen
or heard, the problem may not be
too serious. Sometimes the engine
can get a little too hot when the
vehicle:
.Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic. If the overheat warning is displayed
with no sign of steam:
1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the
highest fan speed. Open the
windows as necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or
N (Neutral), and let the
engine idle.
If the engine coolant temperature
gauge is no longer in the overheat
zone or the engine coolant
temperature warning light no longer
displays, the vehicle can be driven.
Continue to drive the vehicle slowly
for about 10 minutes. Keep a safe
vehicle distance from the vehicle in
front. If the warning does not come
back on, continue to drive normally
and have the cooling system
checked for proper fill and function.
If the warning continues, pull over,
stop, and park the vehicle
right away.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159380) - 2016 - CRC - 2/23/16
Vehicle Care 253
ItemUsage
2 Body control module 1
3 Body control module 5
4 Radio
5 Radio displays/ Parking assist/
Infotainment/Module
tunnel control
6 Instrument panel power outlet
7 Console power outlet
8 Body control module 3
9 Body control module 4
10 Body control module 8
11 Front HVAC blower
12 Right front seat
13 Left front seat Item
Usage
14 Diagnostic link connector
15 Airbag
16 Steering wheel controls
17 HVAC controller
18 Service fuse/ Logistics relay
19 Memory seats
20 Automatic occupant sensing
21 Instrument cluster
22 Discrete logic ignition switch/
Passive entry/
Passive start
23 Body control module 6
24 Body control module 2
25 OnStar
26 –Wheels and Tires
Tires
Every new GM vehicle has
high-quality tires made by a
leading tire manufacturer. See
the warranty manual for
information regarding the tire
warranty and where to get
service. For additional
information refer to the tire
manufacturer.
{Warning
.Poorly maintained and
improperly used tires are
dangerous.
.Overloading the tires can
cause overheating as a
result of too much
flexing. There could be a
blowout and a serious
crash. See Vehicle Load
Limits 0171.
(Continued)

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159380) - 2016 - CRC - 2/23/16
Vehicle Care 261
Tire Pressure
Tires need the correct amount of
air pressure to operate
effectively.Caution
Neither tire underinflation nor
overinflation is good.
Underinflated tires, or tires
that do not have enough air,
can result in:
.Tire overloading and
overheating which could
lead to a blowout.
.Premature or
irregular wear.
.Poor handling.
.Reduced fuel economy.
Overinflated tires, or tires that
have too much air, can
result in:
.Unusual wear.
(Continued)
Caution (Continued)
.Poor handling.
.Rough ride.
.Needless damage from
road hazards.
The Tire and Loading
Information label on the vehicle
indicates the original equipment
tires and the correct cold tire
inflation pressures. The
recommended pressure is the
minimum air pressure needed to
support the vehicle's maximum
load carrying capacity. See
Vehicle Load Limits 0171.
How the vehicle is loaded
affects vehicle handling and ride
comfort. Never load the vehicle
with more weight than it was
designed to carry. When to Check
Check the tires once a month or
more. Do not forget the compact
spare, if the vehicle has one.
The cold compact spare tire
pressure should be at 420 kPa
(60 psi). See
Compact Spare
Tire 0287.
How to Check
Use a good quality pocket-type
gauge to check tire pressure.
Proper tire inflation cannot be
determined by looking at the tire.
Check the tire inflation pressure
when the tires are cold, meaning
the vehicle has not been driven
for at least three hours or no
more than 1.6 km (1 mi).
Remove the valve cap from the
tire valve stem. Press the tire
gauge firmly onto the valve to
get a pressure measurement.
If the cold tire inflation pressure
matches the recommended

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159380) - 2016 - CRC - 2/23/16
Index 349
E
Electric Parking Brake Light . . . . 118
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 218
Electrical System
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 249
Fuses and Circuit Breakers . . . 249
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 252
Overload . . . . . . . . . . . . . . . . . . . . . 248
Emergency OnStar
®. . . . . . . . . . . . . . . . . . . . . . 337
Energy Information . . . . . . . . . . . . . 125
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 231
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . .116
Compartment Overview . . . . . . . 223
Coolant . . . . . . . . . . . . . . . . . . . . . . . 235
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . .112
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 121
Cooling System . . . . . . . . . . . . . . . 233
Cooling System Messages . . . 133
Drive Belt Routing . . . . . . . . . . . . 321
Exhaust . . . . . . . . . . . . . . . . . . . . . . 185 Engine (cont'd)
Heater . . . . . . . . . . . . . . . . . . . . . . . . 181
Oil Life System . . . . . . . . . . . . . . . 230
Oil Messages . . . . . . . . . . . . . . . . . 134
Oil Pressure Light . . . . . . . . . . . . 121
Overheating . . . . . . . . . . . . . . . . . . 237
Power Messages . . . . . . . . . . . . . 134
Running While Parked . . . . . . . . 185
Starting . . . . . . . . . . . . . . . . . . . . . . . 178
Entry Lighting . . . . . . . . . . . . . . . . . . . 154
Event Data Recorders . . . . . . . . . . 334
Exit Lighting . . . . . . . . . . . . . . . . . . . . 154
Extender, Safety Belt . . . . . . . . . . . . 62
Exterior Lamp Controls . . . . . . . . . 150
Exterior Lamps Off Reminder . . . 150
F
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . . 11
Filter, Engine Air Cleaner . . . . . . . . . . . 231
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 151
Flashers, Hazard Warning . . . . . . 152
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 273 Changing . . . . . . . . . . . . . . . . . . . . . 282
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 302
Fluid Automatic Transmission . . . . . . 231
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 240 Fluid (cont'd)
Washer . . . . . . . . . . . . . . . . . . . . . . . 239
Fog Lamps Bulb Replacement . . . . . . . 153, 246
Folding Mirrors . . . . . . . . . . . . . . . . . . 44
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 207
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 332
Front Automatic Braking (FAB) System . . . . . . . . . . . . . . . . . 209
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . 51
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 55
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214 Additives . . . . . . . . . . . . . . . . . . . . . 215
Economy Driving . . . . . . . . . . . . . . . 24
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 217
Filling the Tank . . . . . . . . . . . . . . . 215
Foreign Countries . . . . . . . . . . . . 215
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . 111
Low Fuel Warning Light . . . . . . . 122
Requirements, California . . . . . 215
System Messages . . . . . . . . . . . . 134

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159380) - 2016 - CRC - 2/23/16
352 Index
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 317
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 312
Maintenance Schedule . . . . . . . . . 305 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 315
Malfunction Indicator Lamp . . . . . 116
Manual Mode . . . . . . . . . . . . . . . . . . . 187
Memory Features . . . . . . . . . . . . . . . . 11
Memory Seats . . . . . . . . . . . . . . . . . . . 54
Messages Battery Voltage and
Charging . . . . . . . . . . . . . . . . . . . . 131
Brake System . . . . . . . . . . . . . . . . 131
Compass . . . . . . . . . . . . . . . . . . . . . 132
Door Ajar . . . . . . . . . . . . . . . . . . . . . 133
Engine Cooling System . . . . . . . 133
Engine Oil . . . . . . . . . . . . . . . . . . . . 134
Engine Power . . . . . . . . . . . . . . . . 134
Fuel System . . . . . . . . . . . . . . . . . . 134
Key and Lock . . . . . . . . . . . . . . . . . 135
Object Detection System . . . . . 135
Ride Control System . . . . . . . . . . 137
Security . . . . . . . . . . . . . . . . . . . . . . 138
Starting the Vehicle . . . . . . . . . . . 138
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Messages (cont'd)
Transmission . . . . . . . . . . . . . . . . . 139
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 131
Washer Fluid . . . . . . . . . . . . . . . . . 140
Window . . . . . . . . . . . . . . . . . . . . . . . 140
Mirrors Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 44
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 43
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 44
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 44
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Mirrors, Interior Rearview . . . . . . . . 44
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 262
N
NavigationOnStar®. . . . . . . . . . . . . . . . . . . . . . 337
Net, Convenience . . . . . . . . . . . . . . . 97
New Vehicle Break-In . . . . . . . . . . . 175
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . . 135
Odometer . . . . . . . . . . . . . . . . . . . . . . . 110 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 167 Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . 228
Engine Oil Life System . . . . . . . 230
Messages . . . . . . . . . . . . . . . . . . . . 134
Pressure Light . . . . . . . . . . . . . . . . 121
Older Children, Restraints . . . . . . . 75
Online Owner Center . . . . . . . . . . . 325
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 334
OnStar
®Additional
Information . . . . . . . . . . . . . . . . . . . . 340
OnStar
®Connections . . . . . . . . . . . 338
OnStar®Diagnostics . . . . . . . . . . . . 340
OnStar®Emergency . . . . . . . . . . . . 337
OnStar®Navigation . . . . . . . . . . . . . 337
OnStar®Overview . . . . . . . . . . . . . . 336
OnStar®Security . . . . . . . . . . . . . . . 337
Ordering Service Publications . . . . . . . . . . 331
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 101
Overheating, Engine . . . . . . . . . . . . 237
P
Park
Shifting Into . . . . . . . . . . . . . . . . . . . 183
Shifting Out of . . . . . . . . . . . . . . . . 184
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 189