heater CADILLAC XT5 2020 User Guide

VEHICLE CARE 261
2.0L L4 Engine
1. Electric Engine Cooling Fan(Out of View)
2. Coolant Surge Tank and Pressure Cap
3.6L V6 Engine
1. Electric Engine Cooling Fan
(Out of View)
2. 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.
{Warning
Do 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 engine cooling system in the
vehicle is filled with DEX-COOL engine
coolant mixture. This coolant needs to
be checked and changed at
appropriate levels. See Recommended
Fluids and Lubricants 0342 and
Maintenance Schedule 0332.
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 0264.

262 VEHICLE CARE
What to Use
{Warning
Do 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.
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.
. Helps keep the proper engine
temperature.
Caution
Do not use anything other than a
mix of DEX-COOL coolant that
meets GM Standard GMW3420 and
clean, drinkable water. Anything
else can cause damage to the
engine cooling system and the
vehicle, which would not be covered
by the vehicle warranty.
Never dispose of engine coolant by
putting it in the trash, pouring it on
the ground, or pouring 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.
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 mark is not at or
above the indicated mark, add a 50/
50 mixture of clean, drinkable water
and DEX-COOL coolant. Be sure the
cooling system is cool before this is
done. See Engine Overheating 0264.
The coolant surge tank is in the
engine compartment on the driver
side of the vehicle. See Engine
Compartment Overview 0252.

VEHICLE CARE 265
cluster. SeeEngine Coolant Temperature
Gauge 0112. The vehicle may also
display a message on the Driver
Information Center (DIC).
If the decision is made not to lift the
hood when this warning appears, get
service help right away. See Roadside
Service 0353.
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
Do 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
{Warning
Steam 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. 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.
3. When it is safe to do so, pull off the road, shift to P (Park) or
N (Neutral), and let the
engine idle.
If the engine coolant temperature
gauge is no longer in the overheated
area or the engine coolant
temperature warning light no longer
displays, the vehicle can be driven.
Continue to drive the vehicle slowly
for about 10 minutes. Keep a safe
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.

INDEX 375
Driving (cont'd)Off-Road Recovery . . . . . . . . . . . . . . . . 162
Vehicle Load Limits . . . . . . . . . . . . . . 170
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . 167
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . 148
E
Electric Brake Boost . . . . . . . . . . . . . . . . 190
Electric Parking Brake . . . . . . . . . . . . . . 191
Electric Parking Brake Light . . . . . . . 118
Electrical Equipment, Add-On . . . . . 246
Electrical System
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Fuses and Circuit Breakers . . . . . . . 274
Instrument Panel Fuse Block . . . . 277
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . 259
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 115
Compartment Overview . . . . . . . . . . 252 Engine (cont'd)
Coolant Temperature Gauge . . . . . 112
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . . . . . 121
Cooling System . . . . . . . . . . . . . . . . . . . 260
Drive Belt Routing . . . . . . . . . . . . . . . . 348
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Oil Life System . . . . . . . . . . . . . . . . . . . . 257
Oil Pressure Light . . . . . . . . . . . . . . . . . 122
Overheating . . . . . . . . . . . . . . . . . . . . . . . 264
Power Messages . . . . . . . . . . . . . . . . . . 131
Running While Parked . . . . . . . . . . . 183
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Engine Air Filter Life System . . . . . . 259
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 145
Equipment, Towing . . . . . . . . . . . . . . . . . 241
Event Data Recorders . . . . . . . . . . . . . . 361
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 145
Extended Parking . . . . . . . . . . . . . . . . . . . 183
Extender, Seat Belt . . . . . . . . . . . . . . . . . . 60
Exterior Lamp Controls . . . . . . . . . . . . 140
Exterior Lamps Off Reminder . . . . . . 142
Exterior Lighting Battery Saver . . . . 146
F
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . 259
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 142
Flashers, Hazard Warning . . . . . . . . . . 143
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Fluid Automatic Transmission . . . . . . . . . 258
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . 34
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Heated and Ventilated . . . . . . . . . . . . . 49
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Economy, Driving for Better . . . . . 159
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . . . . . . 233
Filling the Tank . . . . . . . . . . . . . . . . . . . 231

376 INDEX
Fuel (cont'd)Foreign Countries . . . . . . . . . . . . . . . . . 231
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Low Fuel Warning Light . . . . . . . . . 123
Management, Active . . . . . . . . . . . . . . 182
Prohibited Fuels . . . . . . . . . . . . . . . . . . 231
Recommended . . . . . . . . . . . . . . . . . . . . 230
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Fuses and Circuit Breakers . . . . . . . 274
Instrument Panel Fuse Block . . . . 277
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
G
Garage Door Opener . . . . . . . . . . . . . . . . 137Programming . . . . . . . . . . . . . . . . . . . . . . 137
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . 271
Gauges Engine Coolant Temperature . . . . 112
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Speedometer . . . . . . . . . . . . . . . . . . . . . . 111
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 111
Trip Odometer . . . . . . . . . . . . . . . . . . . . 111 Gauges (cont'd)
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . . . . . 107
Gear Shifting Light . . . . . . . . . . . . . . . . . 119
General Information Service and Maintenance . . . . . . . . 331
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 248
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . 273
Hazard Warning Flashers . . . . . . . . . . 143
Head Restraints . . . . . . . . . . . . . . . . . . . . . . 43
Head-up Display . . . . . . . . . . . . . . . . . . . . 127
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 142
Bulb Replacement . . . . . . . . . . . . . . . . 273
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . . . . 142
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 142
High-Beam On Light . . . . . . . . . . . . . . 123
High/Low Beam Changer . . . . . . . . . 142
Lamps On Reminder . . . . . . . . . . . . . . 123 Heated
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Steering Wheel . . . . . . . . . . . . . . . . . . . . 100
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . 35
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Heating . . . . . . . . . . . . . . . . . . . . . . . . .148, 154
High-Beam On Light . . . . . . . . . . . . . . . . 123
High-Speed Operation . . . . . . . . . . . . . . 290
Hill and Mountain Roads . . . . . . . . . . 168
Hill Start Assist (HSA) . . . . . . . . . . . . . 193
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
How to Wear Seat Belts Properly . . . 54
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . .148, 154
I
Ignition Positions . . . . . . . . . . . . . . . . . . . 174
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Indicator Pedestrian Ahead . . . . . . . . . . . . . . . . . 120
Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . 119
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Information Publication Ordering . . . . . . . . . . . . . 358