check engine light BUICK CASCADA 2016 User Guide

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
Driving and Operating 249
However, E85 (85% ethanol) and
other fuels containing more than
15% ethanol must be used only in
FlexFuel vehicles.
Caution
Do not use fuel containing
methanol. It can corrode metal
parts in the fuel system and also
damage plastic and rubber parts.
That damage would not be
covered under the vehicle
warranty.
Some gasolines, mainly high octane
racing gasolines, can contain an
octane-enhancing additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT). Do not use
gasolines and/or fuel additives with
MMT as they can reduce spark plug
life and affect emission control
system performance. The
malfunction indicator lamp may turn
on. If this occurs, see your dealer
for service.
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) 0102. 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
If planning to drive in countries
outside the U.S. or Canada, the
proper fuel might be hard to find.
Check regional auto club or fuel
retail brand websites for availability
in the country where driving. Never
use leaded gasoline, fuel containing
methanol, manganese, or any other
fuel not recommended. Costly
repairs caused by use of improper
fuel would not be covered by the
vehicle warranty.
Fuel Additives
To keep fuel systems clean, TOP
TIER Detergent Gasoline is
recommended. See Fuel0248.
If TOP TIER Detergent Gasoline is
not available, one bottle of Fuel
System Treatment PLUS added to
the fuel tank at every engine oil
change, can help. Fuel System
Treatment PLUS is the only
gasoline additive recommended by
General Motors. It is available at
your dealer.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
Driving and Operating 251
{Warning
Overfilling the fuel tank by more
than three clicks of a standard fill
nozzle may cause:. Vehicle performance issues,
including engine stalling and
damage to the fuel system.
. Fuel spills.
. Potential fuel fires.
Be careful not to spill fuel. Wait a
few seconds after you have finished
pumping before removing the
nozzle. Clean fuel from painted
surfaces as soon as possible. See
Exterior Care 0321.
When replacing the fuel cap, turn it
clockwise until it clicks. Make sure
the cap is fully installed. The
diagnostic system can determine if
the fuel cap has been left off or
improperly installed. This would
allow fuel to evaporate into the
atmosphere. See Malfunction
Indicator Lamp (Check Engine
Light) 0102.
{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) 0102.
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)

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
252 Driving and Operating
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.
Trailer Towing
General Towing
Information
The vehicle is neither designed nor
intended to tow a trailer.
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. See Malfunction Indicator
Lamp (Check Engine Light)
0 102. 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.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
254 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 255
California Proposition65 Warning . . . . . . . . . . . . . . . . . 255
California Perchlorate Materials Requirements . . . . . 255
Accessories and Modifications . . . . . . . . . . . . . . . . 255
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 256
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 257
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 259
Engine Oil . . . . . . . . . . . . . . . . . . . . 260
Engine Oil Life System . . . . . . . 262
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 263
Engine Air Cleaner/Filter . . . . . . 263
Cooling System . . . . . . . . . . . . . . 264
Engine Coolant . . . . . . . . . . . . . . . 265
Engine Overheating . . . . . . . . . . 268
Washer Fluid . . . . . . . . . . . . . . . . . 269
Brakes . . . . . . . . . . . . . . . . . . . . . . . 270
Brake Fluid . . . . . . . . . . . . . . . . . . . 270
Battery - North America . . . . . . 271
Starter Switch Check . . . . . . . . . 272 Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 272
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 273
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 273
Wiper Blade Replacement . . . . 273
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 274
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 275
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 275
LED Lighting . . . . . . . . . . . . . . . . . 275
Adaptive Forward Lighting Lamps . . . . . . . . . . . . . . . . . . . . . . 275
Fog Lamps . . . . . . . . . . . . . . . . . . . 276
Front Turn Signal Lamps . . . . . 276
Sidemarker Lamps . . . . . . . . . . . 277
Side Turn Signal Lamps . . . . . . 278
Back-Up Lamps . . . . . . . . . . . . . . 279
License Plate Lamp . . . . . . . . . . 280
Replacement Bulbs . . . . . . . . . . . 281
Electrical System
Electrical System Overload . . . 281
Fuses and Circuit Breakers . . . 282
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 282 Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 285
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 286
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 288
All-Season Tires . . . . . . . . . . . . . . 289
Winter Tires . . . . . . . . . . . . . . . . . . 289
Low-Profile Tires . . . . . . . . . . . . . 290
Tire Sidewall Labeling . . . . . . . . 290
Tire Designations . . . . . . . . . . . . . 292
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 293
Tire Pressure . . . . . . . . . . . . . . . . . 295
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 296
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 297
Tire Inspection . . . . . . . . . . . . . . . . 300
Tire Rotation . . . . . . . . . . . . . . . . . 301
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 302
Buying New Tires . . . . . . . . . . . . . 302
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 304
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 304
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 306
Wheel Replacement . . . . . . . . . . 306

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
Vehicle Care 263
How to Reset the Engine Oil
Life System
Reset the system whenever the
engine oil is changed so that the
system can calculate the next
engine oil change. To reset the
system:1. Turn the ignition to ON/RUN with the engine off.
2. Press the DIC MENU button on the turn signal lever to enter
the Vehicle Information Menu.
Use the thumbwheel to scroll
through the menu items until
you reach REMAINING
OIL LIFE.
3. Press SET/CLR to reset the oil life at 100%.
4. Turn the ignition to LOCK/OFF.
The system is reset when the
CHANGE ENGINE OIL SOON
message is off and the REMAINING
OIL LIFE 100% message is
displayed. If the CHANGE ENGINE OIL SOON
message comes back on when the
vehicle is started, the engine oil life
system has not been reset. Repeat
the procedure.
Automatic Transmission
Fluid
How to Check Automatic
Transmission Fluid
It is not necessary to check the
transmission fluid level.
A transmission fluid leak is the only
reason for fluid loss. If a leak
occurs, take the vehicle to your
dealer and have it repaired as soon
as possible.
There is a special procedure for
checking and changing the
transmission fluid. Because this
procedure is difficult, you should
have this done at your dealer.
Change the fluid at the intervals
listed in
Maintenance Schedule
0 331, and be sure to use the fluid
listed in Recommended Fluids and
Lubricants 0340.
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the
engine compartment on the
passenger side of the vehicle. See
Engine Compartment
Overview 0259.
When to Inspect the Engine Air
Cleaner/Filter
For intervals on changing and
inspecting the engine air cleaner/
filter, see Maintenance
Schedule 0331.
How to Inspect the Engine Air
Cleaner/Filter
Do not start the engine or have the
engine running with the engine air
cleaner/filter housing open. Before
removing the engine air cleaner/
filter, make sure that the engine air
cleaner/filter housing and nearby
components are free of dirt and
debris. Remove the engine air
cleaner/filter. Lightly tap and shake
the engine air cleaner/filter (away
from the vehicle), to release loose
dust and dirt. Inspect the engine air
cleaner/filter for damage, and

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
270 Vehicle Care
Brakes
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or can
be heard all the time when the
vehicle is moving, except when
applying the brake pedal firmly.
{Warning
The brake wear warning sound
means that soon the brakes will
not work well. That could lead to
a crash. When the brake wear
warning sound is heard, have the
vehicle serviced.
Caution
Continuing to drive with worn-out
brake pads could result in costly
brake repair.Some driving conditions or climates
can cause a brake squeal when the
brakes are first applied or lightly
applied. This does not mean
something is wrong with the brakes.
Properly torqued wheel nuts are
necessary to help prevent brake
pulsation. When tires are rotated,
inspect brake pads for wear and
evenly tighten wheel nuts in the
proper sequence to torque
specifications. See
Capacities and
Specifications 0344.
Brake pads should be replaced as
complete sets.
Brake Pedal Travel
See your dealer if the brake pedal
does not return to normal height,
or if there is a rapid increase in
pedal travel. This could be a sign
that brake service may be required.
Replacing Brake System Parts
Always replace brake system parts
with new, approved replacement
parts. If this is not done, the brakes
may not work properly. The braking
performance expected can change
in many other ways if the wrong replacement brake parts are
installed or if parts are improperly
installed.
Brake Fluid
The brake master cylinder reservoir
is filled with GM approved DOT 4
brake fluid as indicated on the
reservoir cap. See
Engine
Compartment Overview 0259 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.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
316 Vehicle Care
4. Good Battery PositiveTerminal
The jump start negative grounding
point (1) for the discharged battery
is the engine block or an engine
mounting bolt. Connect to a spot as
far away from the discharged
battery as possible.
The jump start positive terminal (2)
on the discharged battery is in the
engine compartment on the driver
side of the vehicle.
The jump start negative terminal (3)
and positive terminal (4) are on the
battery of the vehicle providing the
jump start.
The positive jump start connection
for the discharged battery is under a
trim cover. Open the cover to
expose the terminal.
1. Check the other vehicle. It must have a 12-volt battery
with a negative ground system.
Caution
If the other vehicle does not have
a 12-volt system with a negative
ground, both vehicles can be
damaged. Only use a vehicle that
has a 12-volt system with a
negative ground for jump starting.
2. Position the two vehicles so that they are not touching.
3. Set the parking brake firmly and put the shift lever in
P (Park) with an automatic
transmission, or Neutral with a
manual transmission.
Caution
If any accessories are left on or
plugged in during the jump
starting procedure, they could be
damaged. The repairs would not
be covered by the vehicle
warranty. Whenever possible, turn
off or unplug all accessories on
either vehicle when jump starting. 4. Turn the ignition to LOCK/OFF.
Turn off all lights and
accessories in both vehicles,
except the hazard warning
flashers if needed.
{Warning
An electric fan can start up even
when the engine is not running
and can injure you. Keep hands,
clothing, and tools away from any
underhood electric fan.
{Warning
Using a match near a battery can
cause battery gas to explode.
People have been hurt doing this,
and some have been blinded.
Use a flashlight if you need more
light.
Battery fluid contains acid that
can burn you. Do not get it on
you. If you accidentally get it in
(Continued)

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
338 Service and Maintenance
.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 0340 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.
Hoses
Hoses transport fluids and should
be regularly inspected to ensure
that there are no cracks or leaks.
With a multi-point inspection, your
dealer can inspect the hoses and
advise if replacement is needed. Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.
Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
. With a multi-point inspection,
your dealer can check the lamps
and note any concerns.
Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
. Signs of wear may include
steering wheel vibration, bounce/
sway while braking, longer
stopping distance, or uneven
tire wear.
. As part of the multi-point
inspection, trained dealer
technicians can visually inspect
the shocks and struts for signs

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
370 Index
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 255
Accessory Power . . . . . . . . . . . . . . . 230
Adaptive Forward Lighting (AFL) . . . . . . . . . . . . . . . . . 121
Adaptive Forward Lighting (AFL) Light . . . . . . . . . . . . . . . . . . . . 109
Adaptive Forward Lighting Lamps . . . . . . . . . . . . . . . . . . . . . . . . 275
Add-On Electrical Equipment . . . 252
Additional Information OnStar
®. . . . . . . . . . . . . . . . . . . . . . 364
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . 337
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 48
Agreements Trademarks and License . . . . . 206
Air Cleaner/Filter, Engine . . . . . . . 263
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 215
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 214
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 68
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 61
Passenger Sensing System . . . . 63 Airbag System (cont'd)
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 61
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 62
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 60
Where Are the Airbags? . . . . . . . . 59
Airbags
Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 68
Passenger Status Indicator . . . 101
Readiness Light . . . . . . . . . . . . . . 101
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 67
System Check . . . . . . . . . . . . . . . . . . 58
Alarm Vehicle Security . . . . . . . . . . . . . . . . 31
All-Season Tires . . . . . . . . . . . . . . . . 289
AM-FM Radio . . . . . . . . . . . . . . . . . . . 136
Antenna Multi-band . . . . . . . . . . . . . . . . . . . . 145
Antilock Brake System (ABS) . . . 236
Warning Light . . . . . . . . . . . . . . . . . 105
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 321
Interior . . . . . . . . . . . . . . . . . . . . . . . . 326

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
Index 371
Assistance Program,Roadside . . . . . . . . . . . . . . . . . . . . . . 350
Assistance Systems for Parking and Backing . . . . . . . . . . 243
Audio Bluetooth . . . . . . . . . . . . . . . . . . . . . 164
Audio Players
CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
MP3 . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Automatic Door Locks . . . . . . . . . . . . . . . . . . . . . 28
Headlamp System . . . . . . . . . . . . 121
Transmission . . . . . . . . . . . . . . . . . 233
Transmission Fluid . . . . . . . . . . . 263
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 234
Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 272
Auxiliary Devices . . . . . . . . . . . . . . . . . . . . . . . 164
Avoiding Untrusted Media
Devices . . . . . . . . . . . . . . . . . . . . . . . 155
B
BatteryExterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 125
Load Management . . . . . . . . . . . . 124 Battery (cont'd)
Power Protection . . . . . . . . . . . . . 125
Battery - North America . . . . 271, 315
Blade Replacement, Wiper . . . . . 273
Bluetooth . . . . . . . . . . . . . . . . . . . . . . . 197
Bluetooth Audio . . . . . . . . . . . . . . . . 164
Brake System Warning Light . . . . . . . . 104
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Antilock . . . . . . . . . . . . . . . . . . . . . . . 236
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 238
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Parking . . . . . . . . . . . . . . . . . . . . . . . 236
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 218
Break-In, New Vehicle . . . . . . . . . . 226
Bulb Replacement . . . . . . . . . . . . . . 281
Back-up Lamps . . . . . . . . . . . . . . . 279
Fog Lamps . . . . . . . . . . . . . . . . . . . 276
Front Turn Signal Lamps . . . . . 276
Headlamp Aiming . . . . . . . . . . . . . 274
Headlamps . . . . . . . . . . . . . . . . . . . 275
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . 275
License Plate Lamps . . . . . . . . . 280
Side Turn Signal Lamps . . . . . . 278
Sidemarker Lamps . . . . . . . . . . . 277
Buying New Tires . . . . . . . . . . . . . . . 302
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . 95
California Fuel Requirements . . . . . . . . . . . 249
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 255
California Proposition
65 Warning . . . . . . . . . .255, 271, 315
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 344
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 232
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Winter Driving . . . . . . . . . . . . . . . . 221
Caution, Danger, and Warning . . . . 2
CD Player . . . . . . . . . . . . . . . . . . . . . . 155
Center Console Storage . . . . . . . . . 91
Chains, Tire . . . . . . . . . . . . . . . . . . . . 307
Charging System Light . . . . . . . . . 102
Check Ignition Transmission Lock . . . 273
Malfunction IndicatorEngine Light . . . . . . . . . . . . . . . . 102
Child Restraints Infants and Young Children . . . . . 71