engine overheat BUICK VERANO 2016 User Guide

Buick Verano Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9085356) - 2016 - crc - 10/20/15
Vehicle Care 227
Vehicle Care
General Information
General Information . . . . . . . . . . 228
California Proposition65 Warning . . . . . . . . . . . . . . . . . 228
California Perchlorate Materials Requirements . . . . . 228
Accessories and Modifications . . . . . . . . . . . . . . . . 228
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 229
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 230
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 232
Engine Oil . . . . . . . . . . . . . . . . . . . . 235
Engine Oil Life System . . . . . . . 237
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 238
Manual Transmission Fluid . . . 238
Hydraulic Clutch . . . . . . . . . . . . . . 238
Engine Air Cleaner/Filter . . . . . . 239
Cooling System . . . . . . . . . . . . . . 240
Engine Coolant . . . . . . . . . . . . . . . 241
Engine Overheating . . . . . . . . . . 244
Washer Fluid . . . . . . . . . . . . . . . . . 245
Brakes . . . . . . . . . . . . . . . . . . . . . . . 246
Brake Fluid . . . . . . . . . . . . . . . . . . . 247 Battery - North America . . . . . . 248
Starter Switch Check . . . . . . . . . 249
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 249
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 249
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 249
Wiper Blade Replacement . . . . 250
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 251
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 251
Halogen Bulbs . . . . . . . . . . . . . . . . 251
Headlamps, Front Turn Signal and Parking Lamps . . . . . . . . . 251
Fog Lamps . . . . . . . . . . . . . . . . . . . 252
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 252
License Plate Lamp . . . . . . . . . . 254
Replacement Bulbs . . . . . . . . . . . 254
Electrical System
Electrical System Overload . . . 255
Fuses and Circuit Breakers . . . 255
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 256 Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 258
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 260
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 262
All-Season Tires . . . . . . . . . . . . . . 263
Winter Tires . . . . . . . . . . . . . . . . . . 263
Low-Profile Tires . . . . . . . . . . . . . 264
Tire Sidewall Labeling . . . . . . . . 264
Tire Designations . . . . . . . . . . . . . 266
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 267
Tire Pressure . . . . . . . . . . . . . . . . . 269
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 270
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 271
Tire Inspection . . . . . . . . . . . . . . . . 274
Tire Rotation . . . . . . . . . . . . . . . . . 275
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 276
Buying New Tires . . . . . . . . . . . . . 276
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 278
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 278
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 280
Wheel Replacement . . . . . . . . . . 280

Buick Verano Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9085356) - 2016 - crc - 10/20/15
Vehicle Care 241
2.4L L4 Engine
1. Engine Cooling Fan (Outof View)
2. Engine Coolant Surge Tank and Pressure Cap
{Warning
An electric engine cooling fan
under the hood 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
Heater and radiator hoses, and
other engine parts, can be very
hot. Do not touch them. If you do,
you can be burned.
Do not run the engine if there is a
leak. If you run the engine, it
could lose all coolant. That could
cause an engine fire, and you
could be burned. Get any leak
fixed before you drive the vehicle.
Caution
Using coolant other than
DEX-COOL®can cause
premature engine, heater core,
or radiator corrosion. In addition,
the engine coolant could require
changing sooner. Any repairs
would not be covered by the
vehicle warranty. Always use
DEX-COOL (silicate-free) coolant
in 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 0244.
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)

Buick Verano Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9085356) - 2016 - crc - 10/20/15
242 Vehicle Care
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 0314.
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.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, do not do anything else until
it cools down. If coolant is visible
but the coolant level is not at the
indicated mark, add a 50/50 mixture
of clean, drinkable water and
DEX-COOL coolant at the coolant
surge tank, but be sure the cooling
system is cool before this is done.
See Engine Overheating 0244 for
more information.
The coolant surge tank is in the
engine compartment on the driver
side of the vehicle. See Engine
Compartment Overview 0232 for
more information on location.

Buick Verano Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9085356) - 2016 - crc - 10/20/15
Vehicle Care 243
How to Add Coolant to the
Coolant Surge TankCaution
This vehicle has a specific
coolant fill procedure. Failure to
follow this procedure could cause
the engine to overheat and be
severely damaged.
If no problem is found, check to see
if coolant is visible in the coolant
surge tank. If coolant is visible but
the coolant level is not at the
indicated level mark, add a 50/
50 mixture of clean, drinkable water
and DEX-COOL coolant at the
coolant surge tank, but be sure the
cooling system, including the
coolant surge tank pressure cap, is
cool before you do it.
{Warning
Steam and scalding liquids from a
hot cooling system can blow out
and burn you badly. They are (Continued)
Warning (Continued)
under pressure, and if you turn
the coolant surge tank pressure
cap—even a little —they can
come out at high speed. Never
turn the cap when the cooling
system, including the coolant
surge tank pressure cap, is hot.
Wait for the cooling system and
coolant surge tank pressure cap
to cool if you ever have to turn
the pressure cap.
{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.
Caution
In cold weather, water can freeze
and crack the engine, radiator,
heater core, and other parts. Use
the recommended coolant and
the proper coolant mixture.
{Warning
You can be burned if you spill
coolant on hot engine parts.
Coolant contains ethylene glycol
and it will burn if the engine parts
are hot enough. Do not spill
coolant on a hot engine.

Buick Verano Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9085356) - 2016 - crc - 10/20/15
244 Vehicle Care
1. Remove the coolant surge tankpressure 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 with the 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 the upper radiator hose can be felt
getting hot. Watch out for the
engine cooling fan.
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. Be sure the pressure cap is
hand-tight.
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 coolant
temperature gauge to warn of the
engine overheating. See Engine
Coolant Temperature Gauge 0104. If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance
Program
0324.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Then check to see if the engine
cooling fan is running. If the engine
is overheating, the fan should be
running. If it is not, do not continue
to run the engine. 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.

Buick Verano Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9085356) - 2016 - crc - 10/20/15
Vehicle Care 245
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
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 betoo 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 coolant temperature gauge is
no longer in the overheat zone, 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.
If there is no sign of steam, idle the
engine for three minutes while
parked. If the warning is still
displayed, turn off the engine until it
cools down.
Washer Fluid
What to Use
When windshield washer fluid is
needed, be sure to read the
manufacturer's instructions before
use. If operating the vehicle in an
area where the temperature may fall
below freezing, use a fluid that has
sufficient protection against
freezing.
Adding Washer Fluid

Buick Verano Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9085356) - 2016 - crc - 10/20/15
Vehicle Care 255
Electrical System
Electrical System
Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is
too heavy, the circuit breaker opens
and closes, protecting the circuit
until the current load returns to
normal or the problem is fixed. This
greatly reduces the chance of circuit
overload and fire caused by
electrical problems.
Fuses and circuit breakers protect
power devices in the vehicle.
Replace a bad fuse with a new one
of the identical size and rating.
If there is a problem on the road and
a fuse needs to be replaced, the
same amperage fuse can be
borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have the
headlamp wiring checked right away
if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor
cools, and the wiper control is
turned off. After removal of the
blockage, the wiper motor will
restart when the control is moved to
the desired operating position.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using the
windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit
Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of damage caused by
electrical problems.
To check a fuse, look at the
silver-colored band inside the fuse.
If the band is broken or melted,
replace the fuse. Be sure to replace
a bad fuse with a new one of the
identical size and rating.
Fuses of the same amperage can
be temporarily borrowed from
another fuse location, if a fuse goes
out. Replace the fuse as soon as
possible.
To identify and check fuses, circuit
breakers, and relays, seeEngine
Compartment Fuse Block 0256,
Instrument Panel Fuse Block 0258,
and Rear Compartment Fuse
Block 0260.

Buick Verano Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9085356) - 2016 - crc - 10/19/15
Index 347
Dual Automatic ClimateControl System . . . . . . . . . . . . . . . . 170
E
Electric Parking Brake Light . . . . 109
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 226
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 256
Fuses and Circuit Breakers . . . 255
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 258
Overload . . . . . . . . . . . . . . . . . . . . . 255
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 260
Emergency
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 335
Engine Air Cleaner/Filter . . . . . . . . . . . . . 239
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 106
Compartment Overview . . . . . . . 232
Coolant . . . . . . . . . . . . . . . . . . . . . . . 241
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 104
Cooling System . . . . . . . . . . . . . . . 240
Cooling System Messages . . . .119
Drive Belt Routing . . . . . . . . . . . . 319 Engine (cont'd)
Exhaust . . . . . . . . . . . . . . . . . . . . . . 195
Heater . . . . . . . . . . . . . . . . . . . . . . . . 191
Oil Life System . . . . . . . . . . . . . . . 237
Oil Messages . . . . . . . . . . . . . . . . . .119
Oil Pressure Light . . . . . . . . . . . . .112
Overheating . . . . . . . . . . . . . . . . . . 244
Power Messages . . . . . . . . . . . . . 120
Running While Parked . . . . . . . . 195
Starting . . . . . . . . . . . . . . . . . . . . . . . 190
Entry Lighting . . . . . . . . . . . . . . . . . . . 137
Equipment, Towing . . . . . . . . . . . . . 225
Event Data Recorders . . . . . . . . . . 332
Exit Lighting . . . . . . . . . . . . . . . . . . . . 137
Extender, Safety Belt . . . . . . . . . . . . 61
Exterior Lamp Controls . . . . . . . . . 132
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 138
F
Filter,
Engine Air Cleaner . . . . . . . . . . . 239
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 133
Flashers, Hazard Warning . . . . . . 134
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 281 Changing . . . . . . . . . . . . . . . . . . . . . 283
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 303
Fluid Automatic Transmission . . . . . . 238 Fluid (cont'd)
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 247
Washer . . . . . . . . . . . . . . . . . . . . . . . 245
Fog Lamps
Bulb Replacement . . . . . . . . . . . . 252
Front . . . . . . . . . . . . . . . . . . . . . . . . . 135
Folding Mirrors . . . . . . . . . . . . . . . . . . 42
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 212
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 330
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . .113
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . 50
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 53
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217 Additives . . . . . . . . . . . . . . . . . . . . . 218
Economy Driving . . . . . . . . . . . . . . . 23
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 220
Filling the Tank . . . . . . . . . . . . . . . 219
Foreign Countries . . . . . . . . . . . . 218
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 103
Low Fuel Warning Light . . . . . . . .112
Requirements, California . . . . . 218
System Messages . . . . . . . . . . . . 120

Buick Verano Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9085356) - 2016 - crc - 10/19/15
350 Index
MessagesBattery Voltage and
Charging . . . . . . . . . . . . . . . . . . . . .117
Brake System . . . . . . . . . . . . . . . . .118
Compass . . . . . . . . . . . . . . . . . . . . . .118
Door Ajar . . . . . . . . . . . . . . . . . . . . . .118
Engine Cooling System . . . . . . . .119
Engine Oil . . . . . . . . . . . . . . . . . . . . .119
Engine Power . . . . . . . . . . . . . . . . 120
Fuel System . . . . . . . . . . . . . . . . . . 120
Key and Lock . . . . . . . . . . . . . . . . . 120
Object Detection System . . . . . 120
Ride Control System . . . . . . . . . . 121
Security . . . . . . . . . . . . . . . . . . . . . . 122
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Transmission . . . . . . . . . . . . . . . . . 122
Vehicle . . . . . . . . . . . . . . . . . . . . . . . .117
Washer Fluid . . . . . . . . . . . . . . . . . 123
Window . . . . . . . . . . . . . . . . . . . . . . . 123
Mirrors Automatic Dimming
Rearview . . . . . . . . . . . . . . . . . . . . . . 43
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 42
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 42
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 43
Manual Rearview . . . . . . . . . . . . . . . 43
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Mirrors, Interior Rearview . . . . . . . . 43 Monitor System, Tire
Pressure . . . . . . . . . . . . . . . . . . . . . . 270
Multi-band Antenna . . . . . . . . . . . . . 151
N
Navigation OnStar®. . . . . . . . . . . . . . . . . . . . . . 335
New Vehicle Break-In . . . . . . . . . . . 186
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . . 120
Odometer . . . . . . . . . . . . . . . . . . . . . . . 103
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 178
Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . 235
Engine Oil Life System . . . . . . . 237
Messages . . . . . . . . . . . . . . . . . . . . .119
Pressure Light . . . . . . . . . . . . . . . . .112
Older Children, Restraints . . . . . . . 74
Online Owner Center . . . . . . . . . . . 323
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 332
OnStar
®Additional
Information . . . . . . . . . . . . . . . . . . . . 338
OnStar
®Connections . . . . . . . . . . . 336
OnStar®Diagnostics . . . . . . . . . . . . 338
OnStar®Emergency . . . . . . . . . . . . 335 OnStar
®Navigation . . . . . . . . . . . . . 335
OnStar®Overview . . . . . . . . . . . . . . 334
OnStar®Security . . . . . . . . . . . . . . . 335
Operation Infotainment System . . . . . . . . . . 142
Ordering Service Publications . . . . . . . . . . 329
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 100
Overheating, Engine . . . . . . . . . . . . 244
Overview . . . . . . . . . . . . . . . . . . . . . . . 141
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 193
Shifting Out of . . . . . . . . . . . . . . . . 194
Parking . . . . . . . . . . . . . . . . . . . . . . . . . 194
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 201
Brake and P (Park)Mechanism Check . . . . . . . . . . 249
Over Things That Burn . . . . . . . 194
Parking Assist . . . . . . . . . . . . . . . . . . 211
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . 105
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Passenger Sensing System . . . . . 68
Perchlorate Materials Requirements, California . . . . . . 228