coolant temperature CADILLAC XT5 2023 User Guide

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/28/22
352 Vehicle Care
Cooling System
The cooling system allows the
engine to maintain the correct
working temperature.
2.0L L4 Engine
1. Electric Engine CoolingFan (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 0433 and
Maintenance Schedule 0429.
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 0356.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/28/22
Vehicle Care 353
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

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/28/22
356 Vehicle Care
5. Turn off the airconditioning.
6. Set the parking brake.
7. At the same time, press the accelerator and the
brake for automatic
transmission vehicles for
two seconds, then release.
At the end of the cycle, check
the coolant level in the surge
tank and add coolant, if it is
low. Turn off the vehicle, allow
the Engine Control Module
(ECM) to go to sleep, about
two minutes, and repeat
steps 3-7.
Listen for pump activation and
movement of the control
valves while watching the level
of the tank. If the tank
empties, turn the ignition off,
carefully remove the surge
tank cap, refill to the indicated
mark and repeat steps 3-6.
The fill and air removal
process will run for
approximately 10 minutes.Engine Overheating
The vehicle has several
indicators to warn of the
engine overheating.
There is an engine coolant
temperature gauge on the
instrument cluster. See Engine
Coolant Temperature Gauge
0 126. 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
Assistance Program 0446.
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.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/28/22
Vehicle Care 357
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.
Open the cap with the washer
symbol on it. Add washer fluid

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/25/22
INDEX 469
CameraRear Vision (RVC) . . . . . . . . . . 291
Canadian Vehicle Owners . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . 438
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . 260
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 25
Winter Driving . . . . . . . . . . . . . . 245
Cargo Cover . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Management System . . . . . 108
Tie-Downs . . . . . . . . . . . . . . . . . . . . 107
Caution, Danger, and Warning . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Center Console
Storage . . . . . . . . . . . . . . . . . . . . . . . 106
Chains, Tire . . . . . . . . . . . . . . . . . . . 400
Charging System Light . . . . . . . . . . . . . . . . 128
Wireless . . . . . . . . . . . . . . . . . . . . . . . 118
Check Engine Light (Malfunction Indicator) . . . . 129
Child Restraints Infants and Young
Children . . . . . . . . . . . . . . . . . . . . . . . 83
Lower Anchors and Tethers for Children . . . . . . 90 Child Restraints (cont'd)
Older Children . . . . . . . . . . . . . . . . 82
Securing . . . . . . . . . . . . . . . . . . 97, 99
Systems . . . . . . . . . . . . . . . . . . . . . . . . 86
Child Safety Locks . . . . . . . . . . . . 24
Circuit Breakers . . . . . . . . . . . . . 367
Cleaning Exterior Care . . . . . . . . . . . . . . . . 416
Interior Care . . . . . . . . . . . . . . . . . 421
Climate Control Systems Dual Automatic . . . . . . . . . . . . . 223
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
Cluster, Instrument . . . . . . . . . . 122
Collision Damage Repair . . . . . . . . . . . . . . . . . . . . . . . . . 449
Compact Spare Tire . . . . . . . . 408
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . 103
Compass . . . . . . . . . . . . . . . . . . . . . . . . . 117
Connected Services Connections . . . . . . . . . . . . . . . . 465
Diagnostics . . . . . . . . . . . . . . . . . . 466
Navigation . . . . . . . . . . . . . . . . . . . 464
Connections Connected Services . . . . . . 465 Control
Traction and
Electronic Stability . . . . . . . 271
Control of a Vehicle . . . . . . . . 236
Controls Steering Wheel . . . . . . . . . . . . . 162
Convenience Net . . . . . . . . . . . . . 109
Convex Mirrors . . . . . . . . . . . . . . . . 37
Coolant
Engine TemperatureGauge . . . . . . . . . . . . . . . . . . . . . . . . 126
Engine Temperature Warning Light . . . . . . . . . . . . . . 135
Cooling . . . . . . . . . . . . . . . . . . . 223, 229
Cooling System . . . . . . . . . . . . . . 352
Cornering Lamps . . . . . . . . . . . . . 155
Courtesy Lamps . . . . . . . . . . . . . . 156
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . 448
Cover
Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Coverage Explanations . . . . . 189
Cruise Control . . . . . . . . . . . . . . . . .275 Adaptive . . . . . . . . . . . . . . . . . . . . . . 277
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Cupholders . . . . . . . . . . . . . . . . . . . . . 103

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/25/22
INDEX 471
Electrical System (cont'd)Fuses and Circuit
Breakers . . . . . . . . . . . . . . . . . . . . 367
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . 371
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . 374
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . 458
Engine Air Cleaner/Filter . . . . . . . . . . 350
Air Filter Life System . . . . . 349
Check Light(Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 129
Compartment
Overview . . . . . . . . . . . . . . . . . . . 342
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . 126
Coolant Temperature Warning Light . . . . . . . . . . . . . . 135
Cooling System . . . . . . . . . . . . 352
Drive Belt Routing . . . . . . . . . 440
Exhaust . . . . . . . . . . . . . . . . . . . . . . 260
Heater . . . . . . . . . . . . . . . . . . . . . . . . 256
Oil Life System . . . . . . . . . . . . . 348
Oil Pressure Light . . . . . . . . . . 137
Overheating . . . . . . . . . . . . . . . . . 356 Engine (cont'd)
Power Messages . . . . . . . . . . . 146
Running While Parked . . . . 261
Starting . . . . . . . . . . . . . . . . . . . . . . 254
Entry Lighting . . . . . . . . . . . . . . . . . 157
Equipment, Towing . . . . . . . . . . 331
Event Data Recorders . . . . . 455
Exit Lighting . . . . . . . . . . . . . . . . . . . 157
Extended Parking . . . . . . . . . . . 260
Extender, Seat Belt . . . . . . . . . . . 67
Exterior Lamp Controls . . . . . . . . . . . . . . 151
Lamps Off Reminder . . . . . . 153
Lighting Battery Saver . . . 158
F
Filter
Engine Air Cleaner . . . . . . . . 350
Flash-to-Pass . . . . . . . . . . . . . . . . . . 153
Flashers, Hazard Warning . . . . . . . . . . . . . . . . . . . . . . . 155
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . 401
Changing . . . . . . . . . . . . . . . . . . . . . 402
Floor Mats . . . . . . . . . . . . . . . . . . . . . 425
Fluid Automatic
Transmission . . . . . . . . . . . . . . 349
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 359 Fluid (cont'd)
Washer . . . . . . . . . . . . . . . . . . . . . . . 357
Folding Mirrors . . . . . . . . . . . . . . . . . 38
Forward Collision Alert (FCA)System . . . . . . . . . . . . . . . . . . . . . . 303
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . 452
Front Heated and VentilatedSeats . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Pedestrian Braking
(FPB) System . . . . . . . . . . . . . 307
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . 49
Fuel
Additives . . . . . . . . . . . . . . . . . . . . . . 319
Economy, Driving forBetter . . . . . . . . . . . . . . . . . . . . . . . 234
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . 321
Filling the Tank . . . . . . . . . . . . . . 319
Foreign Countries . . . . . . . . . . 319
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Management, Active . . . . . . 259
Prohibited Fuels . . . . . . . . . . . . 318

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/25/22
472 INDEX
Fuel (cont'd)Recommended . . . . . . . . . . . . . . 318
Top Tier . . . . . . . . . . . . . . . . . . . . . . . 317
Fuses Engine CompartmentFuse Block . . . . . . . . . . . . . . . . . 368
Fuses and Circuit
Breakers . . . . . . . . . . . . . . . . . . . . 367
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . 371
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . 374
G
Garage Door Opener . . . . . . . . 147
Programming . . . . . . . . . . . . . . . . 147
Gas Strut(s) . . . . . . . . . . . . . . . . . . . 363
Gauges
Engine CoolantTemperature . . . . . . . . . . . . . . . 126
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Odometer . . . . . . . . . . . . . . . . . . . . . 125
Speedometer . . . . . . . . . . . . . . . . 125
Tachometer . . . . . . . . . . . . . . . . . . 125
Trip Odometer . . . . . . . . . . . . . . 125
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . . 121 General Information
Service and
Maintenance . . . . . . . . . . . . . . . 427
Towing . . . . . . . . . . . . . . . . . . . . . . . . 322
Vehicle Care . . . . . . . . . . . . . . . . 338
Global Positioning System (GPS) . . . . . . . . . . . . . . . . 187
Glove Box . . . . . . . . . . . . . . . . . . . . . . . 103
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . 445
Guidance Problems with theRoute . . . . . . . . . . . . . . . . . . . . . . . . . 188
H
Hazard WarningFlashers . . . . . . . . . . . . . . . . . . . . . . . 155
Head Restraints . . . . . . . . . . . . . . . 48
Head-Up Display (HUD) . . . . . 142
Headlamps Aiming . . . . . . . . . . . . . . . . . . . . . . . . 365
Automatic . . . . . . . . . . . . . . . . . . . . . 154
Bulb Replacement . . . . . . . . . 365
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . 153
Flash-to-Pass . . . . . . . . . . . . . . . . 153
High-Beam On Light . . . . . . . 138 Headlamps (cont'd)
High/Low Beam
Changer . . . . . . . . . . . . . . . . . . . . . 153
Lamps On Reminder . . . . . . . 138
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Rear Seats . . . . . . . . . . . . . . . . . . . . 59
Steering Wheel . . . . . . . . . . . . . 113
Ventilated Front Seats . . . . 54
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 256
Heating . . . . . . . . . . . . . . . . . . . 223, 229
High-Beam On Light . . . . . . . . . 138
High-Speed Operation . . . . . 386
Hill and Mountain Roads . . . . . . . . . . . . . . . . . . . . . . . . . 244
Hill Start Assist (HSA) . . . . . . . 271
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . . 61
HVAC . . . . . . . . . . . . . . . . . . . . . 223, 229
I
If the System Needs Service . . . . . . . . . . . . . . . . . . . . . . . . . 189
Ignition Positions . . . . . . . . . . . . 252
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 35

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/25/22
474 INDEX
Lights (cont'd)Engine Coolant
Temperature
Warning . . . . . . . . . . . . . . . . . . . . . 135
Engine Oil Pressure . . . . . . . . 137
Gauges and Indicators . . . . . 121
High-Beam On . . . . . . . . . . . . . . . 138
Lane Keep Assist . . . . . . . . . . . 133
Low Fuel Warning . . . . . . . . . . 137
Performance Shifting . . . . . 133
Seat Belt Reminders . . . . . . 126
Security . . . . . . . . . . . . . . . . . . . . . . . 138
Service Electric Parking Brake . . . . . . . . . . . . . . 132
StabiliTrak OFF . . . . . . . . . . . . . 135
Tire Pressure . . . . . . . . . . . . . . . . 136
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . 135
Traction Off . . . . . . . . . . . . . . . . . . 134
Lock
Steering Column . . . . . . . . . . . . . 35
Locks Automatic Door . . . . . . . . . . . . . . 23
Delayed Locking . . . . . . . . . . . . . 23
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Lockout Protection . . . . . . . . . 24
Power Door . . . . . . . . . . . . . . . . . . . 23 Locks (cont'd)
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Loss of Control . . . . . . . . . . . . . . 238
Low Fuel Warning Light . . . . 137
Lower Anchors and Tethers for Children
(LATCH System) . . . . . . . . . . . . . 90
Lumbar Adjustment . . . . . . . . . . . 51 Front Seats . . . . . . . . . . . . . . . . . . . . 51
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 436
Maintenance Schedule . . . . 429 Recommended Fluidsand Lubricants . . . . . . . . . . . 433
Malfunction
Indicator Lamp . . . . . . . . . . . . . . 129
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Map Data Updates . . . . . . . . . . . 189
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Media Avoiding UntrustedDevices . . . . . . . . . . . . . . . . . . . . . . . 171
Memory Seats . . . . . . . . . . . . . . . . . . . 51
Messages
Engine Power . . . . . . . . . . . . . . . 146 Messages (cont'd)
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 146
Vehicle Speed . . . . . . . . . . . . . . . 147
Mirrors Automatic Dimming . . . . . . . . . 38
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . 39
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 37
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Interior Rearview . . . . . . . . . . . . 39
Manual Rearview . . . . . . . . . . . . 39
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Rear Camera . . . . . . . . . . . . . . . . . . 39
Tilt in Reverse . . . . . . . . . . . . . . . . 39
Mode
Driver Control . . . . . . . . . . . . . . . 273
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . 387
Multi-band Antenna . . . . . . . . . . . 171
Multi-Point Vehicle Inspection (MPVI) . . . . . . . . . . . 431
N
NavigationConnected Services . . . . . . 464
Destination . . . . . . . . . . . . . . . . . . . 180
Symbols . . . . . . . . . . . . . . . . . . . . . . . 179