2018 BUICK CASCADA cooling

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
In Brief 15
; : Turns on the parking lamps
including all lamps, except the
headlamps.
5 : Turns on the headlamps
together with the parking lamps and
instrument panel lights. A warning
chime sounds if the driver door is
opened when the ignition is off and
the headlamps are on.
# : If equipped with fog lamps,
press to turn the lamps on or off.
See:
.
Exterior Lamp Controls 0 120
.
Fog Lamps 0 124
Windshield Wiper/Washer
With the ignition on or in ACC/
ACCESSORY move the lever to
select the wiper speed. HI : Use for fast wipes.
LO : Use for slow wipes.
INT : Move the lever up to INT, then
turn the
x INT band up or down
for more or less sensitivity to
moisture.
OFF : Use to turn the wipers off.
1X : For a single wipe, briefly move
the lever down. For several wipes,
hold the lever down.
n L : Pull the lever toward you to
spray windshield washer fluid and
activate the wipers.
See Windshield Wiper/Washer 0 94 .
Climate Controls The heating, cooling, defrosting, and
ventilation for the vehicle can be
controlled with this system. 1. Driver and Passenger Heated
Seats (If Equipped)
2. Driver and Passenger
Temperature Controls
3. AUTO (Automatic Operation)
4. Air Delivery Modes
5. Fan Controls
6. Defrost
7. Rear Window Defogger
8. Recirculation
9. Heated Steering Wheel (If
Equipped)
10. Air Conditioning

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
126 Lighting exterior lamps and dome lamps
remain on after the door is closed
for a set amount of time, then
automatically turn off.
The exterior lamps turn off
immediately by turning the exterior
lamps control off.
This feature can be changed. See
Vehicle Personalization 0 114 .
Battery Load
Management The vehicle has Electric Power
Management (EPM) that estimates
the battery's temperature and state
of charge. It then adjusts the voltage
for best performance and extended
life of the battery.
When the battery's state of charge
is low, the voltage is raised slightly
to quickly bring the charge back up.
When the state of charge is high,
the voltage is lowered slightly to
prevent overcharging. If the vehicle
has a voltmeter gauge or a voltage
display on the Driver Information
Center (DIC), you may see the voltage move up or down. This is
normal. If there is a problem, an
alert will be displayed.
The battery can be discharged at
idle if the electrical loads are very
high. This is true for all vehicles.
This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all of the
power needed for very high
electrical loads.
A high electrical load occurs when
several of the following are on, such
as: headlamps, high beams, rear
window defogger, climate control fan
at high speed, heated seats, engine
cooling fans, trailer loads, and loads
plugged into accessory power
outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power whenever
needed. It can temporarily reduce
the power demands of some
accessories. Normally, these actions occur in
steps or levels, without being
noticeable. In rare cases at the
highest levels of corrective action,
this action may be noticeable to the
driver. If so, a DIC message might
be displayed and it is recommended
that the driver reduce the electrical
loads as much as possible. See
Driver Information Center (DIC)
0 110 .
Battery Power Protection The battery saver feature is
designed to protect the vehicle's
battery.
If some interior lamps are left on
and the ignition is turned off, the
battery rundown protection system
automatically turns the lamp off after
some time.
Exterior Lighting Battery
Saver The exterior lamps turn off about
10 minutes after the ignition is
turned off, if the parking lamps or
headlamps have been manually left

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
Climate Controls 129
Climate Controls Climate Control Systems Dual Automatic Climate
Control System . . . . . . . . . . . . . 129
Air Vents Air Vents . . . . . . . . . . . . . . . . . . . . . 132
Maintenance Passenger Compartment Air
Filter . . . . . . . . . . . . . . . . . . . . . . . . 133
Climate Control
Systems Dual Automatic Climate
Control System The heating, cooling, and ventilation
for the vehicle can be controlled
with this system.
1. Driver and Passenger Heated
Seats (If Equipped)
2. Driver and Passenger
Temperature Controls
3. AUTO (Automatic Operation) 4. Air Delivery Modes
5. Fan Controls
6. Defrost
7. Rear Window Defogger
8. Recirculation
9. Heated Steering Wheel (If
Equipped)
10. Air Conditioning
Automatic Operation
The system automatically controls
the fan speed, air delivery, air
conditioning, and recirculation in
order to heat or cool the vehicle to
the desired temperature.
When AUTO is lit, all four functions
operate automatically. Each function
can also be manually set and the
setting is displayed. Functions not
manually set will continue to be
automatically controlled, even if the
AUTO indicator is not lit.
For automatic operation:
1. Press AUTO.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
130 Climate Controls 2. Set the temperature. Allow the
system time to stabilize. Then
adjust the temperature as
needed for best comfort.
To improve fuel efficiency and
to cool the vehicle faster,
recirculation may be
automatically selected in warm
weather. The recirculation light
will not come on. Press
Lto select recirculation; press it
again to select outside air.
English units can be changed to
metric units through the Driver
Information Center (DIC). See
Driver Information Center (DIC)
0 110 .
Manual Operation
9 : Press the lower
9 button to
decrease the fan speed. Pressing
the lower button longer turns the fan
and cooling off. When off is
selected, the system will stop air
from flowing into the cabin. If any
buttons are pressed or knobs are
turned, the climate control system
will turn on and operate at the
current setting. Press the upper
9 button to increase the fan speed.
The selected fan speed is indicated
by the number of segments on the
display screen. Press AUTO to
return to automatic operation.
Air Delivery Modes : Press
% ,
Y ,
or
[ to change the direction of the
airflow. Any combination of the three
buttons can be selected. The
indicator light in the button will turn
on. The current mode appears in
the display screen. Pressing any of
the three buttons cancels automatic
air delivery control and the direction
of the airflow is controlled manually.
Press AUTO to return to automatic
operation.
To change the current mode, select
one or more of the following:
% : Air is directed to the
windshield and side window vents.
Y : Air is directed to the instrument
panel outlets.
[ : Air is directed to the floor
outlets. 0 : Press to clear the windshield
of fog or frost more quickly. Air is
directed to the windshield.
For best results, clear all snow and
ice from the windshield before
defrosting.
# : Press to turn the air
conditioning on or off. If the fan is
turned off or the outside
temperature falls below freezing, the
air conditioning compressor will
not run.
Press AUTO to return to automatic
operation and the air conditioner
runs as needed. When the indicator
light is on, the air conditioner runs
automatically to cool the air inside
the vehicle or to dry the air needed
to defog the windshield faster.
L : Press to turn recirculation on
or off. An indicator light comes on.
Air is recirculated to quickly cool the
inside of the vehicle or reduce entry
of outside air and odors.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
Driving and Operating 139Other Rainy Weather Tips Besides slowing down, other wet
weather driving tips include:
.
Allow extra following distance.
.
Pass with caution.
.
Keep windshield wiping
equipment in good shape.
.
Keep the windshield washer fluid
reservoir filled.
.
Have good tires with proper
tread depth. See Tires 0 208 .
.
Turn off cruise control.
Hill and Mountain Roads Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips include:
.
Keep the vehicle serviced and in
good shape.
.
Check all fluid levels and brakes,
tires, cooling system, and
transmission.
.
Shift to a lower gear when going
down steep or long hills. { WarningUsing the brakes to slow the
vehicle on a long downhill slope
can cause brake overheating, can
reduce brake performance, and
could result in a loss of braking.
Shift the transmission to a lower
gear to let the engine assist the
brakes on a steep downhill slope.
{ WarningCoasting downhill in N (Neutral)
or with the ignition off is
dangerous. This can cause
overheating of the brakes and
loss of steering assist. Always
have the engine running and the
vehicle in gear.
.
Drive at speeds that keep the
vehicle in its own lane. Do not
swing wide or cross the
center line. .
Be alert on top of hills;
something could be in your lane
(e.g., stalled car, accident).
.
Pay attention to special road
signs (e.g., falling rocks area,
winding roads, long grades,
passing or no-passing zones)
and take appropriate action.
Winter Driving Driving on Snow or Ice Snow or ice between the tires and
the road creates less traction or
grip, so drive carefully. Wet ice can
occur at about 0 °C (32 °F) when
freezing rain begins to fall. Avoid
driving on wet ice or in freezing rain
until roads can be treated.
For Slippery Road Driving:
.
Accelerate gently. Accelerating
too quickly causes the wheels to
spin and makes the surface
under the tires slick.
.
Turn on Traction Control. See
Traction Control/Electronic
Stability Control 0 157 .

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
Vehicle Care 173
Vehicle Care General Information General Information . . . . . . . . . . 174
California Proposition
65 Warning . . . . . . . . . . . . . . . . . 174
California Perchlorate
Materials Requirements . . . . . 175
Accessories and
Modifications . . . . . . . . . . . . . . . . 175
Vehicle Checks Doing Your Own
Service Work . . . . . . . . . . . . . . . 175
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 176
Engine Compartment
Overview . . . . . . . . . . . . . . . . . . . . 178
Engine Oil . . . . . . . . . . . . . . . . . . . . 179
Engine Oil Life System . . . . . . . 181
Automatic Transmission
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 182
Engine Air Cleaner/Filter . . . . . . 183
Cooling System . . . . . . . . . . . . . . 183
Engine Overheating . . . . . . . . . . 187
Washer Fluid . . . . . . . . . . . . . . . . . 188
Brakes . . . . . . . . . . . . . . . . . . . . . . . 189
Brake Fluid . . . . . . . . . . . . . . . . . . . 190
Battery - North America . . . . . . 191
Starter Switch Check . . . . . . . . . 191 Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 192
Ignition Transmission Lock
Check . . . . . . . . . . . . . . . . . . . . . . . 192
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . 192
Wiper Blade Replacement . . . . 193
Windshield Replacement . . . . . 193
Gas Strut(s) . . . . . . . . . . . . . . . . . . 193
Headlamp Aiming Headlamp Aiming . . . . . . . . . . . . 195
Bulb Replacement Bulb Replacement . . . . . . . . . . . . 195
High Intensity Discharge (HID)
Lighting . . . . . . . . . . . . . . . . . . . . . 195
LED Lighting . . . . . . . . . . . . . . . . . 195
Adaptive Forward Lighting
Lamps . . . . . . . . . . . . . . . . . . . . . . 195
Fog Lamps . . . . . . . . . . . . . . . . . . . 196
Front Turn Signal Lamps . . . . . 197
Sidemarker Lamps . . . . . . . . . . . 197
Side Turn Signal Lamps . . . . . . 198
Back-Up Lamps . . . . . . . . . . . . . . 199
License Plate Lamp . . . . . . . . . . 201
Electrical System
Electrical System Overload . . . 201
Fuses and Circuit Breakers . . . 202 Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 202
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 205
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 207
Wheels and Tires Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 208
All-Season Tires . . . . . . . . . . . . . . 209
Winter Tires . . . . . . . . . . . . . . . . . . 209
Low-Profile Tires . . . . . . . . . . . . . 210
Tire Sidewall Labeling . . . . . . . . 210
Tire Designations . . . . . . . . . . . . . 212
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . 213
Tire Pressure . . . . . . . . . . . . . . . . . 216
Tire Pressure Monitor
System . . . . . . . . . . . . . . . . . . . . . . 217
Tire Pressure Monitor
Operation . . . . . . . . . . . . . . . . . . . 218
Tire Inspection . . . . . . . . . . . . . . . . 221
Tire Rotation . . . . . . . . . . . . . . . . . 221
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . 222
Buying New Tires . . . . . . . . . . . . . 223
Different Size Tires and
Wheels . . . . . . . . . . . . . . . . . . . . . . 224
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 224

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
Vehicle Care 1791. Engine Air Cleaner/Filter 0 183 .
2. Engine Cooling Fan (Out of
View). See Cooling System
0 183 .
3. Engine Oil Dipstick. See
Engine Oil 0 179 .
4. Engine Oil Fill Cap. See
Engine Oil 0 179 .
5. Brake Fluid Reservoir. See
Brakes 0 189 .
6. Battery - North America 0 191 .
7. Engine Coolant Surge Tank
and Pressure Cap. See
Cooling System 0 183 .
8. Windshield Washer Fluid
Reservoir. See Washer Fluid
0 188 .
9. Engine Compartment Fuse
Block 0 202 .
Engine Oil To ensure proper engine
performance and long life, careful
attention must be paid to engine oil. Following these simple, but
important steps will help protect
your investment:
.
Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“ Selecting the Right Engine Oil ”
in this section.
.
Check the engine oil level
regularly and maintain the
proper oil level. See “ Checking
Engine Oil ” and “ When to Add
Engine Oil ” in this section.
.
Change the engine oil at the
appropriate time. See Engine Oil
Life System 0 181 .
.
Always dispose of engine oil
properly. See “ What to Do with
Used Oil ” in this section.
Checking Engine Oil
Check the engine oil level regularly,
every 650 km (400 mi), especially
prior to a long trip. The engine oil
dipstick handle is a loop. See
Engine Compartment Overview
0 178 for the location.{ WarningThe engine oil dipstick handle
may be hot; it could burn you.
Use a towel or glove to touch the
dipstick handle.
If a low oil Driver Information Center
(DIC) message displays, check the
oil level.
Follow these guidelines:
.
To get an accurate reading, park
the vehicle on level ground.
Check the engine oil level after
the engine has been off for at
least two hours. Checking the
engine oil level on steep grades
or too soon after engine shutoff
can result in incorrect readings.
Accuracy improves when
checking a cold engine prior to
starting. Remove the dipstick
and check the level.
.
If unable to wait two hours, the
engine must be off for at least
15 minutes if the engine is
warm, or at least 30 minutes if

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
Vehicle Care 183
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
0 178 .
When to Inspect the Engine Air
Cleaner/Filter For intervals on changing and
inspecting the engine air cleaner/
filter, see Maintenance Schedule
0 252 .
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 replace if damaged. Do not clean
the engine air cleaner/filter with
water or compressed air.
To inspect or replace the air cleaner/
filter:
1. Remove the six screws and lift
the cover off the engine air
cleaner/filter assembly.
2. Inspect or replace the engine
air cleaner/filter.
3. Lower the cover into the engine
air cleaner/filter assembly, then
secure with the six screws.{ WarningOperating the engine with the air
cleaner/filter off can cause you or
others to be burned. The air
cleaner not only cleans the air; it
helps to stop flames if the engine
backfires. Use caution when
working on the engine and do not
drive with the air cleaner/filter off.
CautionIf the air cleaner/filter is off, dirt
can easily get into the engine,
which could damage it. Always
have the air cleaner/filter in place
when driving.
Cooling System The cooling system allows the
engine to maintain the correct
working temperature.