2018 BUICK CASCADA overheating

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
184 Vehicle Care
1. Engine Cooling Fan (Out
of View)
2. Engine Coolant Surge Tank
and Pressure Cap
{ Warning
An underhood electric fan 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. { WarningDo not touch heater or radiator
hoses, or other engine parts.
They can be very hot and can
burn you. Do not run the engine if
there is a leak; all coolant could
leak out. That could cause an
engine fire and can burn you. Fix
any leak before driving 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 0 187 . What to Use
{ WarningPlain water, or other liquids such
as alcohol, can boil before the
proper coolant mixture will. With
plain water or the wrong mixture,
the engine could get too hot but
there would not be an 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. 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

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
Vehicle Care 1875. 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.
CautionIf the pressure cap is not tightly
installed, coolant loss and 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. See Engine
Coolant Temperature Gauge 0 100 . If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance Program
0 270 .
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.
CautionDo not run the engine if there is a
leak in the engine cooling system.
This can cause a loss of all
coolant and can damage the
system and vehicle. Have any
leaks fixed right away. If Steam Is Coming from the
Engine Compartment
{ WarningSteam and scalding liquids from a
hot cooling system are under
pressure. Turning the pressure
cap, even a little, can cause them
to come out at high speed and
you could be burned. Never turn
the cap when the cooling system,
including the pressure cap, is hot.
Wait for the cooling system and
pressure cap to 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

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
208 Vehicle Care Fuses Usage
9 Selective catalytic
reduction system
10 Selective catalytic
reduction system
11 Tire pressure
monitor/Rear vision
camera
12 Convertible control
module/Reverse
lamps
13 –
14 Rear seat electrical
folding
15 –
16 Rear vision camera/
Convertible control
module
17 –
18 –
19 Heated steering
wheel Fuses Usage
20 –
21 Heated seats
22 –
23 Convertible control
module/Left
power rail
24 Selective catalytic
reduction system
25 –
26 Non-logistic mode
27 Passive entry/
Passive start
28 –
29 Hydraulic unit
30 –
31 –
32 –Wheels and Tires Tires Every new GM vehicle has
high-quality tires made by a
leading tire manufacturer. See
the warranty manual for
information regarding the tire
warranty and where to get
service. For additional
information refer to the tire
manufacturer.
{ Warning.
Poorly maintained and
improperly used tires are
dangerous. .
Overloading the tires can
cause overheating as a
result of too much
flexing. There could be a
blowout and a serious
crash. See Vehicle Load
Limits 0 141 .
(Continued)

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
216 Vehicle Care
Tire Pressure Tires need the correct amount of
air pressure to operate
effectively.
Caution
Neither tire underinflation nor
overinflation is good.
Underinflated tires, or tires
that do not have enough air,
can result in: .
Tire overloading and
overheating which could
lead to a blowout..
Premature or
irregular wear..
Poor handling..
Reduced fuel economy.
Overinflated tires, or tires that
have too much air, can
result in:
.
Unusual wear.
(Continued) Caution (Continued) .
Poor handling. .
Rough ride. .
Needless damage from
road hazards.
The Tire and Loading
Information label on the vehicle
indicates the original equipment
tires and the correct cold tire
inflation pressures. The
recommended pressure is the
minimum air pressure needed to
support the vehicle's maximum
load carrying capacity. See
Vehicle Load Limits 0 141 .
How the vehicle is loaded
affects vehicle handling and ride
comfort. Never load the vehicle
with more weight than it was
designed to carry. When to Check
Check the tires once a month or
more. Do not forget the compact
spare, if the vehicle has one.
The cold compact spare tire
pressure should be at 420 kPa
(60 psi). See Compact Spare
Tire 0 234 .
How to Check
Use a good quality pocket-type
gauge to check tire pressure.
Proper tire inflation cannot be
determined by looking at the tire.
Check the tire inflation pressure
when the tires are cold, meaning
the vehicle has not been driven
for at least three hours or no
more than 1.6 km (1 mi).
Remove the valve cap from the
tire valve stem. Press the tire
gauge firmly onto the valve to
get a pressure measurement.
If the cold tire inflation pressure
matches the recommended
pressure on the Tire and
Loading Information label, no

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
Index 295Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 281
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 183
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 102
Compartment Overview . . . . . . . 178
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 100
Cooling System . . . . . . . . . . . . . . . 183
Drive Belt Routing . . . . . . . . . . . . 265
Exhaust . . . . . . . . . . . . . . . . . . . . . . 150
Oil Life System . . . . . . . . . . . . . . . 181
Oil Pressure Light . . . . . . . . . . . . 107
Overheating . . . . . . . . . . . . . . . . . . 187
Power Messages . . . . . . . . . . . . . .113
Running While Parked . . . . . . . . 151
Starting . . . . . . . . . . . . . . . . . . . . . . . 147
Entry Lighting . . . . . . . . . . . . . . . . . . . 125
Event Data Recorders . . . . . . . . . . 278
Exit Lighting . . . . . . . . . . . . . . . . . . . . 125
Extender, Seat Belt . . . . . . . . . . . . . . 58
Exterior Lamp Controls . . . . . . . . . 120
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 126 F Filter,
Engine Air Cleaner . . . . . . . . . . . 183
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 121
Flashers, Hazard Warning . . . . . . 123
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 227
Changing . . . . . . . . . . . . . . . . . . . . . 229
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 249
Fluid
Automatic Transmission . . . . . . 182
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 190
Washer . . . . . . . . . . . . . . . . . . . . . . . 188
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 124
Bulb Replacement . . . . . . . . . . . . 196
Folding Mirrors . . . . . . . . . . . . . . . . . . 34
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 164
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 276
Front Fog Lamp
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Front Seats
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 50
Front Turn Signal Lamps . . . . . . . 197
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Additives . . . . . . . . . . . . . . . . . . . . . 169
Economy Driving . . . . . . . . . . . . . . . 20 Fuel (cont'd)
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 171
Filling the Tank . . . . . . . . . . . . . . . 169
Foreign Countries . . . . . . . . . . . . 169
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Low Fuel Warning Light . . . . . . . 108
Requirements, California . . . . . 168
Fuses
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 202
Fuses and Circuit Breakers . . . 202
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 205
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 207
G Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 193
Gauges
Engine Coolant
Temperature . . . . . . . . . . . . . . . . 100
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Odometer . . . . . . . . . . . . . . . . . . . . . . . 99
Speedometer . . . . . . . . . . . . . . . . . . . 99
Tachometer . . . . . . . . . . . . . . . . . . . . . 99
Trip Odometer . . . . . . . . . . . . . . . . . . 99

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
298 Index Messages (cont'd)
Vehicle Speed . . . . . . . . . . . . . . . . .114
Mirrors
Automatic Dimming
Rearview . . . . . . . . . . . . . . . . . . . . . . 34
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 33
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 34
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 34
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Mirrors, Interior Rearview . . . . . . . . 34
Monitor System, Tire
Pressure . . . . . . . . . . . . . . . . . . . . . . 217
N Navigation
OnStar . . . . . . . . . . . . . . . . . . . . . . . 282
New Vehicle Break-In . . . . . . . . . . . 145
O Odometer . . . . . . . . . . . . . . . . . . . . . . . . 99
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Off-Road
Recovery . . . . . . . . . . . . . . . . . . . . . 137
Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . 179
Engine Oil Life System . . . . . . . 181
Pressure Light . . . . . . . . . . . . . . . . 107
Older Children, Restraints . . . . . . . 71
Online Owner Center . . . . . . . . . . . 269 OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 279
OnStar Additional
Information . . . . . . . . . . . . . . . . . . . . 286
OnStar Connections . . . . . . . . . . . . 283
OnStar Diagnostics . . . . . . . . . . . . . 285
OnStar Emergency . . . . . . . . . . . . . 281
OnStar Navigation . . . . . . . . . . . . . . 282
OnStar Overview . . . . . . . . . . . . . . . 280
OnStar Security . . . . . . . . . . . . . . . . 282
Operate Pedal Light . . . . . . . . . . . . 105
Operation
Fog Lamps . . . . . . . . . . . . . . . . . . . 124
Ordering
Service Publications . . . . . . . . . . 275
Outlets
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Overheating, Engine . . . . . . . . . . . . 187
P Park
Shifting Into . . . . . . . . . . . . . . . . . . . 149
Shifting Out of . . . . . . . . . . . . . . . . 149
Parking
Brake and P (Park)
Mechanism Check . . . . . . . . . . 192
Over Things That Burn . . . . . . . 150
Parking Assist . . . . . . . . . . . . . . . . . . 162 Parking or Backing
Assistance Systems . . . . . . . . . . 162
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . . 101
Passenger Compartment Air
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Passenger Sensing System . . . . . 65
Perchlorate Materials
Requirements, California . . . . . . 175
Personalization
Vehicle . . . . . . . . . . . . . . . . . . . . . . . .114
Power
Door Locks . . . . . . . . . . . . . . . . . . . . . 28
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . 96
Protection, Battery . . . . . . . . . . . . 126
Retained Accessory (RAP) . . . 148
Seat Adjustment . . . . . . . . . . . . . . . . 48
Windows . . . . . . . . . . . . . . . . . . . . . . . 35
Power Steering Warning
Lights . . . . . . . . . . . . . . . . . . . . . . . . . 106
Pregnancy, Using Seat Belts . . . . 57
Privacy
Vehicle Data Recording . . . . . . . 278
Program
Courtesy Transportation . . . . . . 272