heater CADILLAC XT4 2020 User Guide

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
256 VEHICLE CARE
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. 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 windshield washer fluid is
needed, 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
The appropriate message will appear
in the Driver Information Center (DIC)
when the fluid level is low.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
268 VEHICLE CARE
FusesUsage
26 Transmission control module/Ignition
27 Instrument panel body/Ignition
28 Rear wiper
29 Trailer ignition
30 Malfunction indicator lamp
32 Rear drive control module 1
33 Front heated seat
34 Handsfree/Window switch
35 Diesel exhaust fuel heater
36 Fuel module
39 Massage
40 Steering column lock
41 –
43 Heated steering wheel
44 Seat ventilation Fuses
Usage
46 Engine control module/Ignition
48 Rear drive control module 2
49 Heating ventilation/ Air conditioning
blower motor
50 –
51 –
54 –
55 –
56 Starter motor
57 –
58 –
59 High-beam headlamps left/right
60 Trailer interface module 1
61 –
62 –
63 – Fuses
Usage
65 Air conditioning control
67 –
68 –
69 –
70 Trailer park lamp
72 Starter pinion
75 Engine control module
76 Powertrain off engine
78 Horn
79 Washer pump
81 Transmission control module/Engine
control module/
Cooling pump
82 Nitrogen oxide sensor
83 Ignition coil
84 Powertrain on engine
85 Shunt
86 Shunt

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
VEHICLE CARE 269
FusesUsage
87 Diesel fuel heater 1
88 Aeroshutter
89 Selective catalytic reduction module
92 Trailer stop/Turn right
93 Automatic headlamp leveling/Canister vent
solenoid
95 Smart sensors
96 Diesel fuel heater 2
99 –
Relays Usage
4 –
20 Rear defogger
25 Front wiper control
31 Run/Crank
37 Front wiper speed
42 –
64 Starter motor Relays
Usage
66 Powertrain
71 Trailer park lamp
73 Air conditioning control
80 Starter pinion
90 Powertrain sensor
94 Diesel exhaust fuel heater
98 Diesel fuel heaterInstrument Panel Fuse
Block
The instrument panel fuse block is on
the driver side of the instrument
panel, between the steering wheel and
the door. To access the fuses, remove
the panel, starting at the top. Once
clips are disengaged, the tabs along
the bottom of the door can be
disengaged from the instrument panel
to remove the door.
To reinstall the door, place the bottom
tabs into the slots, and rotate the door
into position, engaging the clips.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
INDEX 363
Driving (cont'd)Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . 165
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Driving the Vehicle . . . . . . . . . . . . . . . . . . . . 2
Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . . . . . 148
E
Electric Parking Brake . . . . . . . . . . . . . . 189
Electric Parking Brake Light . . . . . . . 117
Electrical Equipment, Add-On . . . . . 239
Electrical SystemEngine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Fuses and Circuit Breakers . . . . . . . 265
Instrument Panel Fuse Block . . . . 269
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . 251
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 115
Compartment Overview . . . . . . . . . . 246
Coolant Temperature Gauge . . . . . 112
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . . . . . 121
Cooling System . . . . . . . . . . . . . . . . . . . 252 Engine (cont'd)
Drive Belt Routing . . . . . . . . . . . . . . . . 335
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Oil Life System . . . . . . . . . . . . . . . . . . . . 249
Oil Pressure Light . . . . . . . . . . . . . . . . . 122
Overheating . . . . . . . . . . . . . . . . . . . . . . . 255
Power Messages . . . . . . . . . . . . . . . . . . 130
Running While Parked . . . . . . . . . . . 181
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Engine Air Filter Life System . . . . . . 250
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 145
Equipment, Towing . . . . . . . . . . . . . . . . . 236
Event Data Recorders . . . . . . . . . . . . . . 348
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 145
Extended Parking . . . . . . . . . . . . . . . . . . . 180
Extender, Seat Belt . . . . . . . . . . . . . . . . . . 58
Exterior Lamp Controls . . . . . . . . . . . . 140
Exterior Lamps Off Reminder . . . . . . 142
Exterior Lighting Battery Saver . . . . 146
F
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . 251
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 142
Flashers, Hazard Warning . . . . . . . . . . 143
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 300 Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Fluid
Automatic Transmission . . . . . . . . . 250
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . 32
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Front Pedestrian Braking (FPB)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Front Seats Heated and Ventilated . . . . . . . . . . . . . 48
Front Storage . . . . . . . . . . . . . . . . . . . . . . . . 92
Front Turn Signal Lamps . . . . . . . . . . 264
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Economy, Driving for Better . . . . . 157
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . . . . . . 229
Filling the Tank . . . . . . . . . . . . . . . . . . . 227
Foreign Countries . . . . . . . . . . . . . . . . . 227
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Low Fuel Warning Light . . . . . . . . . 122
Management, Active . . . . . . . . . . . . . . 180
Prohibited Fuels . . . . . . . . . . . . . . . . . . 226
Recommended . . . . . . . . . . . . . . . . . . . . 226

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
364 INDEX
Fuel (cont'd)Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Fuses Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Fuses and Circuit Breakers . . . . . . . 265
Instrument Panel Fuse Block . . . . 269
G
Garage Door Opener . . . . . . . . . . . . . . . . 136 Programming . . . . . . . . . . . . . . . . . . . . . . 136
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . 262
Gauges Engine Coolant Temperature . . . . 112
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Speedometer . . . . . . . . . . . . . . . . . . . . . . 111
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 111
Trip Odometer . . . . . . . . . . . . . . . . . . . . 111
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . . . . . 107
Gear Shifting Light . . . . . . . . . . . . . . . . . 118
General Information Service and Maintenance . . . . . . . . 318
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 242
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
H
Hazard Warning Flashers . . . . . . . . . . 143
Head Restraints . . . . . . . . . . . . . . . . . . . . . . 41
Head-up Display . . . . . . . . . . . . . . . . . . . . 127
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 142
Bulb Replacement . . . . . . . . . . . . . . . . 264
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Steering Wheel . . . . . . . . . . . . . . . . . . . . . . 99
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . 32
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
High-Beam On Light . . . . . . . . . . . . . . . . 123
High-Speed Operation . . . . . . . . . . . . . . 280 Hill and Mountain Roads . . . . . . . . . . 165
Hill Start Assist (HSA) . . . . . . . . . . . . . 191
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
How to Wear Seat Belts Properly . . . 53
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
I
Ignition Positions . . . . . . . . . . . . . . . . . . . 172
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Indicator
Pedestrian Ahead . . . . . . . . . . . . . . . . . 119
Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . 119
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Information Publication Ordering . . . . . . . . . . . . . 345
Infotainment . . . . . . . . . . . . . . . . . . . . . . . . 147
Infotainment System . . . . . . . . . . . . . . . 349
Instrument Cluster . . . . . . . . . . . . . . . . . 108
Instrument Panel Overview . . . . . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . . . 33
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . 306