2016 BUICK CASCADA engine coolant

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
266 Vehicle Care
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
Lubricants0340.
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.
It is normal to see coolant moving in
the upper coolant hose return line
when the engine is running.
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 or above the mark
pointed to, add a 50/50 mixture of
clean, drinkable water and
DEX-COOL coolant.
Be sure the cooling system is cool
before this is done.
If no coolant is visible in the coolant
surge tank, add coolant as follows:
How to Add Coolant to the
Coolant Surge Tank Caution
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. Never turn (Continued)

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
Vehicle Care 267
Warning (Continued)
the cap when the cooling system,
including the surge tank pressure
cap, is hot. Wait for the cooling
system and surge tank pressure
cap to cool.
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.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 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 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.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
268 Vehicle Care
Caution
If the pressure cap is not tightly
installed, coolant loss and
possible engine damage may
occur. Be sure the cap is properly
and tightly secured.
Engine Overheating
The vehicle has an engine coolant
temperature gauge to warn of the
engine overheating. SeeEngine
Coolant Temperature Gauge 0100.
If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance
Program 0350.
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.
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 (Continued)
Warning (Continued)
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.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
Vehicle Care 269
3. When it is safe to do so, pull offthe 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, 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 the vehicle needs windshield
washer fluid, 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
Open the cap with the washer
symbol on it. Add washer fluid until
the tank is full. See
Engine
Compartment Overview 0259 for
reservoir location.
Caution
. Do not use washer fluid that
contains any type of water
repellent coating. This can
cause the wiper blades to
chatter or skip.
(Continued)
Caution (Continued)
.Do not use engine coolant
(antifreeze) in the
windshield washer. It can
damage the windshield
washer system and paint.
. Do not mix water with
ready-to-use washer fluid.
Water can cause the
solution to freeze and
damage the washer fluid
tank and other parts of the
washer system.
. When using concentrated
washer fluid, follow the
manufacturer instructions for
adding water.
. Fill the washer fluid tank
only three-quarters full when
it is very cold. This allows
for fluid expansion if
freezing occurs, which could
damage the tank if it is
completely full.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
332 Service and Maintenance
a year and the oil life system must
be reset. Your trained dealer
technician can perform this work.
If the engine oil life system is reset
accidentally, service the vehicle
within 5 000 km/3,000 mi since the
last service. Reset the oil life
system when the oil is changed.
SeeEngine Oil Life System 0262.
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the
following services. See Tire
Rotation 0301.
. Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system. See Engine
Oil 0260 andEngine Oil Life
System 0262. .
Check engine coolant level. See
Engine Coolant 0265.
. Check windshield washer fluid
level. See Washer Fluid 0269.
. Visually inspect windshield wiper
blades for wear, cracking,
or contamination and replace
worn or damaged blades. See
Exterior Care 0321. Replace
wiper blades every 20 000 km/
12,000 mi or 12 months. See
Wiper Blade
Replacement 0273.
. Check tire inflation pressures.
See Tire Pressure 0295.
. Inspect tire wear. See Tire
Inspection 0300.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/
Filter 0263. .
Inspect brake system. See
Exterior Care 0321.
. Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See Exterior Care 0321.
. Check restraint system
components. See Safety System
Check 057.
. Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
. Lubricate body components. See
Exterior Care 0321.
. Check starter switch. See Starter
Switch Check 0272.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
340 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Automatic Transmission DEXRON
®-VI Automatic Transmission Fluid.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL
®Coolant.
See Engine Coolant 0265.
Engine Oil Engine oil meeting the dexos1™ specification of the proper SAE viscosity
grade. ACDelco dexos1 Synthetic Blend is recommended. See Engine
Oil 0260.
Hydraulic Brake System DOT 4 Hydraulic Brake Fluid (GM Part No. 19299570, in Canada 19299571).
Key Lock Cylinders, Hood, Door, and Trunk Lid Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).
Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No. 3634770, in Canada 10953518) or Dielectric Silicone Grease (GM Part No. 12345579, in Canada 10953481).
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
372 Index
Child Restraints (cont'd)Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . . . 76
Older Children . . . . . . . . . . . . . . . . . . 69
Securing . . . . . . . . . . . . . . . . . . . . 83, 86
Systems . . . . . . . . . . . . . . . . . . . . . . . . 73
Circuit Breakers . . . . . . . . . . . . . . . . 282
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 321
Interior Care . . . . . . . . . . . . . . . . . . 326
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . 212
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Cluster, Instrument . . . . . . . . . . . . . . 98
Collision Damage Repair . . . . . . . 353
Compact Spare Tire . . . . . . . . . . . . 314
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . 89
Compass . . . . . . . . . . . . . . . . . . . . . . . . 95
Configure Menu . . . . . . . . . . . . . . . . 183
Connections OnStar
®. . . . . . . . . . . . . . . . . . . . . . 362
Control
Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 239
Control of a Vehicle . . . . . . . . . . . . . 218
Controls Steering Wheel . . . . . . . . . . . . . . . 130 Convertible Top . . . . . . . . . . . . . . . . . . 37
Roll Bars . . . . . . . . . . . . . . . . . . . . . . . 63
Convex Mirrors . . . . . . . . . . . . . . . . . . 33
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . . . 265
Engine Temperature Gauge . . 100
Cooling System . . . . . . . . . . . . . . . . . 264
Courtesy Lamps . . . . . . . . . . . . . . . . 123
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . 352
Coverage Explanations . . . . . . . . . 191
Cruise Control . . . . . . . . . . . . . . . . . . 241
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Customer Assistance . . . . . . . . . . . 348 Offices . . . . . . . . . . . . . . . . . . . . . . . . 348
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 348
Customer Information Service PublicationsOrdering Information . . . . . . . . 355
Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 346
D
Damage Repair, Collision . . . . . . . 353
Danger, Warning, and Caution . . . . 2
Data Recorders, Event . . . . . . . . . 358
Database CoverageExplanations . . . . . . . . . . . . . . . . . . 191 Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . . . 120
Defensive Driving . . . . . . . . . . . . . . . 217
Delayed Locking . . . . . . . . . . . . . . . . . 28
Destination . . . . . . . . . . . . . . . . . . . . . 172
Destination Download OnStar
®. . . . . . . . . . . . . . . . . . . . . . 182
Devices Auxiliary . . . . . . . . . . . . . . . . . . . . . . 164
USB . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Diagnostics
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 364
Distracted Driving . . . . . . . . . . . . . . . 217
Dome Lamps . . . . . . . . . . . . . . . . . . . 123
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 109
Delayed Locking . . . . . . . . . . . . . . . . 28
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Power Locks . . . . . . . . . . . . . . . . . . . . 28
Drive Belt Routing, Engine . . . . . . 345
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . 110
Driving Defensive . . . . . . . . . . . . . . . . . . . . . 217
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 217
For Better Fuel Economy . . . . . . . 19
Hill and Mountain Roads . . . . . . 221
If the Vehicle is Stuck . . . . . . . . . 223

Buick Cascada Owner Manual (GMNA-Localizing-U.S-9186636) - 2016 - crc -
3/9/16
Index 373
Driving (cont'd)Loss of Control . . . . . . . . . . . . . . . 219
Off-Road Recovery . . . . . . . . . . . 219
Vehicle Load Limits . . . . . . . . . . . 223
Wet Roads . . . . . . . . . . . . . . . . . . . 220
Winter . . . . . . . . . . . . . . . . . . . . . . . . 221
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 212
E
Electric Parking Brake Light . . . . 105
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 252
Electrical System
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 282
Fuses and Circuit Breakers . . . 282
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 285
Overload . . . . . . . . . . . . . . . . . . . . . 281
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 286
Emergency OnStar
®. . . . . . . . . . . . . . . . . . . . . . 361
Engine Air Cleaner/Filter . . . . . . . . . . . . . 263
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 102
Compartment Overview . . . . . . . 259 Engine (cont'd)
Coolant . . . . . . . . . . . . . . . . . . . . . . . 265
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 100
Cooling System . . . . . . . . . . . . . . . 264
Drive Belt Routing . . . . . . . . . . . . 345
Exhaust . . . . . . . . . . . . . . . . . . . . . . 232
Oil Life System . . . . . . . . . . . . . . . 262
Oil Pressure Light . . . . . . . . . . . . 107
Overheating . . . . . . . . . . . . . . . . . . 268
Running While Parked . . . . . . . . 232
Starting . . . . . . . . . . . . . . . . . . . . . . . 229
Entry Lighting . . . . . . . . . . . . . . . . . . . 124
Event Data Recorders . . . . . . . . . . 358
Exit Lighting . . . . . . . . . . . . . . . . . . . . 124
Extender, Safety Belt . . . . . . . . . . . . 56
Exterior Lamp Controls . . . . . . . . . 119
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 125
F
Filter,Engine Air Cleaner . . . . . . . . . . . 263
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 120
Flashers, Hazard Warning . . . . . . 122
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 307
Changing . . . . . . . . . . . . . . . . . . . . . 309
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 329 Fluid
Automatic Transmission . . . . . . 263
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 270
Washer . . . . . . . . . . . . . . . . . . . . . . . 269
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 122 Bulb Replacement . . . . . . . . . . . . 276
Folding Mirrors . . . . . . . . . . . . . . . . . . 33
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 245
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 356
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Front Seats Heated . . . . . . . . . . . . . . . . . . . . . . . . . 49
Front Turn Signal Lamps . . . . . . . 276
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Additives . . . . . . . . . . . . . . . . . . . . . 249
Economy Driving . . . . . . . . . . . . . . . 19
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 251
Filling the Tank . . . . . . . . . . . . . . . 250
Foreign Countries . . . . . . . . . . . . 249
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Low Fuel Warning Light . . . . . . . 108
Requirements, California . . . . . 249