2022 CADILLAC XT6 overheating

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
334 VEHICLE CARE
7. At the same time, press theaccelerator 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 0113. 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 0416.
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:

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
VEHICLE CARE 351
FusesUsage
F50 –
F51 –
F52 Active Dampening System Module
F53 External Object Calculating
Module 2B/Camera
Image Processing
Module
F54 External Object Calculating
Module 2A/Side Blind
Zone Alert
F55 Theft Deterrent
F56 Universal Garage Door Opener/Rain
Sensor
F57 Folding Seats 2
Circuit
Breakers Usage
CB1 –
CB2 – Circuit
Breakers Usage
CB3 Rear Auxiliary Power Outlet
Relays Usage
K1 Folding Seats 1
K2 –
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.
(Continued)
Warning (Continued)
.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 0226.
.Underinflated tires pose the
same danger as overloaded
tires. The resulting crash
could cause serious injury.
Check all tires frequently to
maintain the recommended
pressure. Tire pressure should
be checked when the tires
are cold.
.Overinflated tires are more
likely to be cut, punctured,
or broken by a sudden impact
— such as when hitting a
pothole. Keep tires at the
recommended pressure.
(Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
358 VEHICLE CARE
Vehicle Placard:A label
permanently attached to a vehicle
showing the vehicle capacity
weight and the original equipment
tire size and recommended
inflation pressure. See “Tire and
Loading Information Label” under
Vehicle Load Limits 0226.
Tire Pressure
Tires need the correct amount of
air pressure to operate effectively.
{Warning
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.
(Continued)
Warning (Continued)
Overinflated tires, or tires that
have too much air, can result in:
.Unusual wear.
.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
0 226.
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 pressure of the tires
once a month or more. Do not
forget the compact spare, if the
vehicle has one. The compact
spare cold tire pressure should be
at 420 kPa (60 psi). See
Compact
Spare Tire 0378.
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 further

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
INDEX 437
Door (cont'd)Delayed Locking . . . . . . . . . . . . . . . . . . . 18
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . 18
Drive Belt Routing, Engine . . . . . . . . . 411
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . . . . . . 244
Driver Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Driver Assistance Systems . . . . . . . . . 276
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . . . 124
Driver Mode Control . . . . . . . . . . . . . . . . 248
Driver Mode Control Light . . . . . . . . . 121
Driving Assistance Systems . . . . . . . . . . . . . . . 287
Better Fuel Economy . . . . . . . . . . . . . 216
Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . . . . . 305
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Hill and Mountain Roads . . . . . . . . 224
If the Vehicle is Stuck . . . . . . . . . . . . 226
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Loss of Control . . . . . . . . . . . . . . . . . . . . 219
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Off-Road Recovery . . . . . . . . . . . . . . . . 219
Vehicle Load Limits . . . . . . . . . . . . . . 226
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . 223 Driving (cont'd)
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . 206
E
Electric Brake Boost . . . . . . . . . . . . . . . . 244
Electric Parking Brake . . . . . . . . . . . . . . 245
Electric Parking Brake Light . . . . . . . 118
Electrical Equipment, Add-On . . . . . 316
Electrical SystemEngine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Fuses and Circuit Breakers . . . . . . . 343
Instrument Panel Fuse Block . . . . 347
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 426
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . 329
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . . . . 115
Compartment Overview . . . . . . . . . . 322
Coolant Temperature Gauge . . . . . 113
Cooling System . . . . . . . . . . . . . . . . . . . 330
Drive Belt Routing . . . . . . . . . . . . . . . . 411 Engine (cont'd)
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Oil Life System . . . . . . . . . . . . . . . . . . . . 327
Oil Pressure Light . . . . . . . . . . . . . . . . . 122
Overheating . . . . . . . . . . . . . . . . . . . . . . . 334
Power Messages . . . . . . . . . . . . . . . . . . 130
Running While Parked . . . . . . . . . . . 238
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Engine Air Filter Life System . . . . . . 328
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 144
Equipment, Towing . . . . . . . . . . . . . . . . . 312
Event Data Recorders . . . . . . . . . . . . . . 423
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 145
Extended Parking . . . . . . . . . . . . . . . . . . . 237
Extender, Seat Belt . . . . . . . . . . . . . . . . . . 60
Exterior Lamp Controls . . . . . . . . . . . . 139
Exterior Lamps Off Reminder . . . . . . 141
Exterior Lighting Battery Saver . . . . 145
F
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . 329
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 141
Flashers, Hazard Warning . . . . . . . . . . 142
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 392

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
INDEX 441
Online Owner Center . . . . . . . . . . . . . . . 415
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424
OnStar Additional Information . . . . 427
OnStar Emergency . . . . . . . . . . . . . . . . . . 426
OnStar Overview . . . . . . . . . . . . . . . . . . . . 425
OnStar Security . . . . . . . . . . . . . . . . . . . . . 426
OnStar System . . . . . . . . . . . . . . . . . . . . . . 171
OutletsPower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Overheating, Engine . . . . . . . . . . . . . . . . 334
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Instrument Panel . . . . . . . . . . . . . . . . . . . . 4
P
ParkShifting Into . . . . . . . . . . . . . . . . . . . . . . 236
Shifting Out of . . . . . . . . . . . . . . . . . . . . 236
Park Assist . . . . . . . . . . . . . . . . . . . . .278, 281
Parking Brake and P (Park)Mechanism Check . . . . . . . . . . . . . . . 338
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Over Things That Burn . . . . . . . . . . . 237
Parking Assist Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 282
Parking or Backing
Assistance Systems . . . . . . . . . . . . . . . 278 Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Passenger Sensing System . . . . . . . . . . 67
Pedestrian Ahead Indicator . . . . . . . . 120
Perchlorate Materials Requirements, California . . . . . . . . . 319
Performance Shifting Light . . . . . . . . 119
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Phone Apple CarPlay andAndroid Auto . . . . . . . . . . . . . . . . . . . . 184
Bluetooth . . . . . . . . . . . . . . . . . . . . 179, 180
Port
USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Positioning Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 18
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Protection, Battery . . . . . . . . . . . . . . . . 145
Retained Accessory (RAP) . . . . . . . . 236
Seat Adjustment . . . . . . . . . . . . . . . . . . . 41
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Pregnancy, Using Seat Belts . . . . . . . . . 59 Privacy
Vehicle Data Recording . . . . . . . . . . 423
Problems with Route Guidance . . . . 172
Program Courtesy Transportation . . . . . . . . . 418
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . 302
Proposition 65 Warning, California . . . . . . . . . . . . . . . . . . . . .337, 379, Back Cover
Publication Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . 421
R
Radio
HD Radio Technology . . . . . . . . . . . . 154
Radio Data System (RDS) . . . . . . . . . . 155
Radio Frequency Statement . . . . . . . . 421
Radio Reception . . . . . . . . . . . . . . . . . . . . 156
Radios AM-FM Radio . . . . . . . . . . . . . . . . . . . . . 152
Satellite . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Reading Lamps . . . . . . . . . . . . . . . . . . . . . 144
Rear Camera Mirror . . . . . . . . . . . . . . . . . 32
Rear Climate Control System . . . . . . 211
Rear Cross Traffic Alert System . . . 287
Rear Pedestrian Alert . . . . . . . . . . . . . . . 286
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50