check engine light BUICK VERANO 2017 User Guide

Buick Verano Owner Manual (GMNA- Localizing-U.S./Canada-10122753) -
2017 - crc - 5/16/16
Driving and Operating 201
If driving safely on a wet road and it
becomes necessary to slam on the
brakes and continue braking to
avoid a sudden obstacle, a
computer senses the wheels are
slowing down. If one of the wheels
is about to stop rolling, the computer
will separately work the brakes at
each wheel.
ABS can change the brake pressure
to each wheel, as required, faster
than any driver could. This can help
you steer around the obstacle while
braking hard.
As the brakes are applied, the
computer keeps receiving updates
on wheel speed and controls
braking pressure accordingly.
Remember: ABS does not change
the time needed to get a foot up to
the brake pedal or always decrease
stopping distance. If you get too
close to the vehicle in front of you,
there will not be enough time to
apply the brakes if that vehicle
suddenly slows or stops. Always
leave enough room up ahead to
stop, even with ABS.Using ABS
Do not pump the brakes. Just hold
the brake pedal down firmly and let
ABS work. You may hear the ABS
pump or motor operating and feel
the brake pedal pulsate. This is
normal.
Braking in Emergencies
ABS allows you to steer and brake
at the same time. In many
emergencies, steering can help
more than even the very best
braking.
Electric Parking Brake
The Electric Parking Brake (EPB)
switch is on the center console. The
EPB can always be activated, even
if the ignition is off. To prevent
draining the battery, avoid repeated
cycles of the EPB when the engine
is not running.
The system has a red parking brake
status light and an amber parking
brake warning light. SeeElectric
Parking Brake Light 0110. There
are also parking brake-related
Driver Information Center (DIC)
messages. See Brake System
Messages 0119. In case of
insufficient electrical power, the EPB
cannot be applied or released.
Before leaving the vehicle, check
the red parking brake status light to
ensure that the parking brake is
applied.
EPB Apply
To apply the EPB:
1. Be sure the vehicle is at a complete stop.
2. Lift up the EPB switch momentarily.

Buick Verano Owner Manual (GMNA- Localizing-U.S./Canada-10122753) -
2017 - crc - 5/16/16
204 Driving and Operating
vehicle wheel brakes to assist the
driver in keeping the vehicle on the
intended path.
If cruise control is being used and
traction control or StabiliTrak begins
to limit wheel spin, cruise control will
disengage. Cruise control may be
turned back on when road
conditions allow.
Both systems come on
automatically when the vehicle is
started and begins to move. The
systems may be heard or felt while
they are operating or while
performing diagnostic checks. This
is normal and does not mean there
is a problem with the vehicle.
It is recommended to leave both
systems on for normal driving
conditions, but it may be necessary
to turn TCS off if the vehicle gets
stuck in sand, mud, ice, or snow.
SeeIf the Vehicle Is Stuck 0183
and “Turning the Systems Off and
On” later in this section.
The indicator light for both systems
is in the instrument cluster. This
light will:
.
Flash when TCS is limiting
wheel spin.
. Flash when StabiliTrak is
activated.
. Turn on and stay on when either
system is not working.
If either system fails to turn on or to
activate, a message displays in the
Driver Information Center (DIC),
and
dcomes on and stays on to
indicate that the system is inactive
and is not assisting the driver in
maintaining control. The vehicle is
safe to drive, but driving should be
adjusted accordingly.
If
dcomes on and stays on:
1. Stop the vehicle. 2. Turn the engine off and wait
15 seconds.
3. Start the engine.
Drive the vehicle. If
dcomes on
and stays on, the vehicle may need
more time to diagnose the problem.
If the condition persists, see your
dealer.
Turning the Systems Off
and On
The button for TCS and StabiliTrak
is on the center stack.
Caution
Do not repeatedly brake or
accelerate heavily when TCS is
off. The vehicle driveline could be
damaged.

Buick Verano Owner Manual (GMNA- Localizing-U.S./Canada-10122753) -
2017 - crc - 5/16/16
Driving and Operating 217
posted octane rating of less than 87,
as this may cause engine knock and
will lower fuel economy.
Prohibited Fuels
Caution
Do not use fuels with any of the
following conditions; doing so
may damage the vehicle and void
its warranty:. For vehicles which are not
FlexFuel, fuel labeled
greater than 15% ethanol by
volume, such as mid-level
ethanol blends (16 –50%
ethanol), E85, or FlexFuel.
. Fuel with any amount of
methanol, methylal, and
aniline. These fuels can
corrode metal fuel system
parts or damage plastic and
rubber parts.
. Fuel containing metals such
as methylcyclopentadienyl
manganese tricarbonyl
(Continued)
Caution (Continued)
(MMT), which can damage
the emissions control
system and spark plugs.
. Fuel with a posted octane
rating of less than the
recommended fuel. Using
this fuel will lower fuel
economy and performance,
and may decrease the life of
the emissions catalyst.
California Fuel
Requirements
If the vehicle is certified to meet
California Emissions Standards, it is
designed to operate on fuels that
meet California specifications. See
the underhood emission control
label. If this fuel is not available in
states adopting California Emissions
Standards, the vehicle will operate
satisfactorily on fuels meeting
federal specifications, but emission
control system performance may be
affected. The malfunction indicator
lamp could turn on and the vehicle may not pass a smog-check test.
See
Malfunction Indicator Lamp
(Check Engine Light) 0107. If this
occurs, return to your authorized
dealer for diagnosis. If it is
determined that the condition is
caused by the type of fuel used,
repairs may not be covered by the
vehicle warranty.
Fuels in Foreign
Countries
The U.S., Canada, and Mexico post
fuel octane ratings in anti-knock
index (AKI). For fuel not to use in a
foreign country, see “Prohibited
Fuels” inFuel 0216.
Fuel Additives
To keep fuel systems clean, TOP
TIER Detergent Gasoline is
recommended. See Fuel0216.
If TOP TIER Detergent Gasoline is
not available, one bottle of GM Fuel
System Treatment Cleaner added to
the fuel tank at every engine oil
change, can help. GM Fuel System
Treatment Cleaner is the only

Buick Verano Owner Manual (GMNA- Localizing-U.S./Canada-10122753) -
2017 - crc - 5/16/16
Driving and Operating 219
{Warning
If a fire starts while you are
refueling, do not remove the
nozzle. Shut off the flow of fuel by
shutting off the pump or by
notifying the station attendant.
Leave the area immediately.
Caution
If a new fuel cap is needed, be
sure to get the right type of cap
from your dealer. The wrong type
of fuel cap may not fit properly,
may cause the malfunction
indicator lamp to light, and could
damage the fuel tank and
emissions system. See
Malfunction Indicator Lamp
(Check Engine Light)0107.
Filling a Portable Fuel
Container
{Warning
Filling a portable fuel container
while it is in the vehicle can cause
fuel vapors that can ignite either
by static electricity or other
means. You or others could be
badly burned and the vehicle
could be damaged. Always:
. Use approved fuel
containers.
. Remove the container from
the vehicle, trunk, or pickup
bed before filling.
. Place the container on the
ground.
. Place the nozzle inside the
fill opening of the container
before dispensing fuel, and
keep it in contact with the fill
opening until filling is
complete.
(Continued)
Warning (Continued)
.Fill the container no more
than 95% full to allow for
expansion.
. Do not smoke, light
matches, or use lighters
while pumping fuel.
. Avoid using cell phones or
other electronic devices.

Buick Verano Owner Manual (GMNA- Localizing-U.S./Canada-10122753) -
2017 - crc - 5/16/16
Driving and Operating 225
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. SeeMalfunction Indicator
Lamp (Check Engine Light)
0 107. A device connected to the
DLC —such as an aftermarket
fleet or driver-behavior tracking
device —may interfere with
vehicle systems. This could affect
vehicle operation and cause a
crash. Such devices may also
access information stored in the
vehicle’s systems.
Caution
Some electrical equipment can
damage the vehicle or cause
components to not work and
would not be covered by the
vehicle warranty. Always check
with your dealer before adding
electrical equipment.
Add-on equipment can drain the
vehicle's 12-volt battery, even if the
vehicle is not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see
Servicing the Airbag-Equipped
Vehicle 073 and Adding Equipment
to the Airbag-Equipped
Vehicle 074.

Buick Verano Owner Manual (GMNA- Localizing-U.S./Canada-10122753) -
2017 - crc - 5/16/16
Vehicle Care 243
Brake Fluid
The brake master cylinder reservoir
is filled with GM approved DOT 3
brake fluid as indicated on the
reservoir cap. SeeEngine
Compartment Overview 0231 for
the location of the reservoir.
Checking Brake Fluid
With the vehicle in P (Park) on a
level surface, the brake fluid level
should be between the minimum
and maximum marks on the brake
fluid reservoir.
There are only two reasons why the
brake fluid level in the reservoir may
go down:
. Normal brake lining wear. When
new linings are installed, the
fluid level goes back up. .
A fluid leak in the brake
hydraulic system. Have the
brake hydraulic system fixed.
With a leak, the brakes will not
work well.
Always clean the brake fluid
reservoir cap and the area around
the cap before removing it.
Do not top off the brake fluid.
Adding fluid does not correct a leak.
If fluid is added when the linings are
worn, there will be too much fluid
when new brake linings are
installed. Add or remove fluid, as
necessary, only when work is done
on the brake hydraulic system.
{Warning
If too much brake fluid is added, it
can spill on the engine and burn,
if the engine is hot enough. You
or others could be burned, and
the vehicle could be damaged.
Add brake fluid only when work is
done on the brake hydraulic
system. When the brake fluid falls to a low
level, the brake warning light comes
on. See
Brake System Warning
Light 0109.
Brake fluid absorbs water over time
which degrades the effectiveness of
the brake fluid. Replace brake fluid
at the specified intervals to prevent
increased stopping distance. See
Maintenance Schedule 0303.
What to Add
Use only GM approved DOT 3
brake fluid from a clean, sealed
container. See Recommended
Fluids and Lubricants 0313.
{Warning
The wrong or contaminated brake
fluid could result in damage to the
brake system. This could result in
the loss of braking leading to a
possible injury. Always use the
proper GM approved brake fluid.

Buick Verano Owner Manual (GMNA- Localizing-U.S./Canada-10122753) -
2017 - crc - 5/16/16
310 Service and Maintenance
Additional
Maintenance and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional
maintenance services may be
required.
It is recommended that your dealer
perform these services—their
trained dealer technicians know
your vehicle best. Your dealer can
also perform a thorough
assessment with a multi-point
inspection to recommend when your
vehicle may need attention.
The following list is intended to
explain the services and conditions
to look for that may indicate
services are required. Battery
The 12-volt battery supplies power
to start the engine and operate any
additional electrical accessories.
.
To avoid break-down or failure to
start the vehicle, maintain a
battery with full cranking power.
. Trained dealer technicians have
the diagnostic equipment to test
the battery and ensure that the
connections and cables are
corrosion-free.
Belts
. Belts may need replacing if they
squeak or show signs of
cracking or splitting.
. Trained dealer technicians have
access to tools and equipment
to inspect the belts and
recommend adjustment or
replacement when necessary. Brakes
Brakes stop the vehicle and are
crucial to safe driving.
.
Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping.
. Trained dealer technicians have
access to tools and equipment
to inspect the brakes and
recommend quality parts
engineered for the vehicle.
Fluids
Proper fluid levels and approved
fluids protect the vehicle’s systems
and components. See
Recommended Fluids and
Lubricants 0313 for GM approved
fluids.
. Engine oil and windshield
washer fluid levels should be
checked at every fuel fill.
. Instrument cluster lights may
come on to indicate that fluids
may be low and need to be
filled.

Buick Verano Owner Manual (GMNA- Localizing-U.S./Canada-10122753) -
2017 - crc - 5/16/16
Index 343
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 228
Accessory Power . . . . . . . . . . . . . . . 193
Add-On Electrical Equipment . . . 225
Additional Information OnStar
®. . . . . . . . . . . . . . . . . . . . . . 338
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 310
Adjustments
Lumbar, Front Seats . . . . . . . . . . . . 53
Agreements Trademarks and License . . . . . 167
Air Cleaner/Filter, Engine . . . . . . . 235
Air Conditioning . . . . . . . . . . . . . . . . 171
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 174
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 174
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 74
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 68
Passenger Sensing System . . . . 69
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 67
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . 68 Airbag System (cont'd)
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 66
Where Are the Airbags? . . . . . . . . 65
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 74
Passenger Status Indicator . . . 106
Readiness Light . . . . . . . . . . . . . . 106
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 73
System Check . . . . . . . . . . . . . . . . . . 63
Alarm Vehicle Security . . . . . . . . . . . . . . . . 40
Alert Side Blind Zone (SBZA) . . . . . . 213
All-Season Tires . . . . . . . . . . . . . . . . 259
AM-FM Radio . . . . . . . . . . . . . . . . . . . 145
Antenna Backglass . . . . . . . . . . . . . . . . . . . . 151
Multi-band . . . . . . . . . . . . . . . . . . . . 151
Antilock Brake System (ABS) . . . 200 Warning Light . . . . . . . . . . . . . . . . . .110
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 292
Interior . . . . . . . . . . . . . . . . . . . . . . . . 297
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 323

Buick Verano Owner Manual (GMNA- Localizing-U.S./Canada-10122753) -
2017 - crc - 5/16/16
344 Index
AudioTheft-Deterrent Feature . . . . . . . 140
Audio Players CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Automatic Door Locks . . . . . . . . . . . . . . . . . . . . . 37
Headlamp System . . . . . . . . . . . . 135
Transmission . . . . . . . . . . . . . . . . . 197
Transmission Fluid . . . . . . . . . . . 235
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 199
Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 245
Auxiliary Devices . . . . . . . . . . . . . . . . . . . . . . . 153
Avoiding Untrusted Media
Devices . . . . . . . . . . . . . . . . . . . . . . . 151
B
Backglass Antenna . . . . . . . . . . . . . 151
BatteryExterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 138
Power Protection . . . . . . . . . . . . . 138
Voltage and Charging Messages . . . . . . . . . . . . . . . . . . . .118
Battery - North America . . . . 244, 286
Blade Replacement, Wiper . . . . . 246 Bluetooth
Overview . . . . . . . . . . . 156, 158, 161
Brake Parking, Electric . . . . . . . . . . . . . . 201
System Warning Light . . . . . . . . 109
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 242 Antilock . . . . . . . . . . . . . . . . . . . . . . . 200
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 203
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 243
System Messages . . . . . . . . . . . . .119
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 178
Break-In, New Vehicle . . . . . . . . . . 187
Bulb Replacement . . . . . . . . . . . . . . 251
Fog Lamps . . . . . . . . . . . . . . . . . . . 248
Halogen Bulbs . . . . . . . . . . . . . . . . 247
Headlamp Aiming . . . . . . . . . . . . . 247
Headlamps . . . . . . . . . . . . . . . . . . . 247
Headlamps, Front TurnSignal, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 247
License Plate Lamps . . . . . . . . . 250
Taillamps, Turn Signal,
Stoplamps, and Back-up
Lamps . . . . . . . . . . . . . . . . . . . . . . 249
Buying New Tires . . . . . . . . . . . . . . . 273
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 100
California
Fuel Requirements . . . . . . . . . . . 217
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 227
California Proposition
65 Warning . . . . . . . . . .227, 244, 286
Camera
Rear Vision (RVC) . . . . . . . . . . . . 208
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 317
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 196
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Winter Driving . . . . . . . . . . . . . . . . 181
Caution, Danger, and Warning . . . . 2
CD Player . . . . . . . . . . . . . . . . . . . . . . 151
Center Console Storage . . . . . . . . . 95
Chains, Tire . . . . . . . . . . . . . . . . . . . . 277
Charging System Light . . . . . . . . . 107
Check
Ignition Transmission Lock . . . 245
Malfunction IndicatorEngine Light . . . . . . . . . . . . . . . . 107

Buick Verano Owner Manual (GMNA- Localizing-U.S./Canada-10122753) -
2017 - crc - 5/16/16
346 Index
Driving (cont'd)Hill and Mountain Roads . . . . . . 181
If the Vehicle is Stuck . . . . . . . . . 183
Loss of Control . . . . . . . . . . . . . . . 179
Off-Road Recovery . . . . . . . . . . . 179
Vehicle Load Limits . . . . . . . . . . . 183
Wet Roads . . . . . . . . . . . . . . . . . . . 180
Winter . . . . . . . . . . . . . . . . . . . . . . . . 181
Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . 171
E
Electric Parking Brake . . . . . . . . . . 201
Electric Parking Brake Light . . . . 110
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 225
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 252
Fuses and Circuit Breakers . . . 252
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 255
Overload . . . . . . . . . . . . . . . . . . . . . 251
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 257
Emergency OnStar
®. . . . . . . . . . . . . . . . . . . . . . 334
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 235 Engine (cont'd)
Check and Service Engine
Soon Light . . . . . . . . . . . . . . . . . . 107
Compartment Overview . . . . . . . 231
Coolant . . . . . . . . . . . . . . . . . . . . . . . 237
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 105
Cooling System . . . . . . . . . . . . . . . 236
Cooling System Messages . . . 120
Drive Belt Routing . . . . . . . . . . . . 318
Exhaust . . . . . . . . . . . . . . . . . . . . . . 196
Heater . . . . . . . . . . . . . . . . . . . . . . . . 192
Oil Life System . . . . . . . . . . . . . . . 234
Oil Messages . . . . . . . . . . . . . . . . . 120
Oil Pressure Light . . . . . . . . . . . . .113
Overheating . . . . . . . . . . . . . . . . . . 240
Power Messages . . . . . . . . . . . . . 121
Running While Parked . . . . . . . . 197
Starting . . . . . . . . . . . . . . . . . . . . . . . 191
Entry Lighting . . . . . . . . . . . . . . . . . . . 138
Equipment, Towing . . . . . . . . . . . . . 224
Event Data Recorders . . . . . . . . . . 331
Exit Lighting . . . . . . . . . . . . . . . . . . . . 138
Extended Parking . . . . . . . . . . . . . . . 195
Extender, Safety Belt . . . . . . . . . . . . 62
Exterior Lamp Controls . . . . . . . . . 133
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 138
F
Filter,
Engine Air Cleaner . . . . . . . . . . . 235
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 134
Flashers, Hazard Warning . . . . . . 135
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 278 Changing . . . . . . . . . . . . . . . . . . . . . 279
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 300
Fluid Automatic Transmission . . . . . . 235
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 243
Washer . . . . . . . . . . . . . . . . . . . . . . . 241
Fog Lamps Bulb Replacement . . . . . . . . . . . . 248
Front . . . . . . . . . . . . . . . . . . . . . . . . . 136
Folding Mirrors . . . . . . . . . . . . . . . . . . 44
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . 211
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 329
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 51
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 54
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 Additives . . . . . . . . . . . . . . . . . . . . . 217
Economy Driving . . . . . . . . . . . . . . . 25