
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15440907) - 2022 - CRC - 12/17/21
296 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 0298.
The coolant surge tank is in the
engine compartment on the driver
side of the vehicle. See Engine
Compartment Overview 0289.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15440907) - 2022 - CRC - 12/17/21
358 VEHICLE CARE
Dry the finish with a soft, clean
chamois or an all-cotton towel to
avoid surface scratches and water
spotting.
Cleaning Underhood Components
Caution
Do not power wash any component
under the hood that has this
e
symbol.
This could cause damage that
would not be covered by the vehicle
warranty.
Solvents or aggressive cleaners may
harm underhood components. The
usages of these chemicals should be
avoided.
Recommend water only.
A pressure washer may be used, but
care must be utilized. The following
criteria must be followed:
.Water pressure must be kept below
14 000 KPa (2,000 PSI).
.Water temperature must be below
80 °C (180 °F).
.Spray nozzle with a 40 degree wide
angle spray pattern or wider must
be used.
.Nozzle must be kept at least 30 cm
(1 ft) away from all surfaces.
Finish Care
Application of aftermarket clearcoat
sealant/wax is not recommended.
If painted surfaces are damaged, see
your dealer to have the damage
assessed and repaired. Foreign
materials such as calcium chloride
and other salts, ice melting agents,
road oil and tar, tree sap, bird
droppings, chemicals from industrial
chimneys, etc., can damage the
vehicle's finish if they remain on
painted surfaces. Wash the vehicle as
soon as possible. If necessary, use
non-abrasive cleaners that are marked
safe for painted surfaces to remove
foreign matter.
Occasional hand waxing or mild
polishing should be done to remove
residue from the paint finish. See your
dealer for approved cleaning products. Do not apply waxes or polishes to
uncoated plastic, vinyl, rubber, decals,
simulated wood, or flat paint as
damage can occur.
Caution
Machine compounding or
aggressive polishing on a basecoat/
clearcoat paint finish may damage
it. Use only non-abrasive waxes and
polishes that are made for a
basecoat/clearcoat paint finish on
the vehicle.
To keep the paint finish looking new,
keep the vehicle garaged or covered
whenever possible.
Protecting Exterior Bright Metal
Moldings
Caution
Failure to clean and protect the
bright metal moldings can result in
a hazy white finish or pitting. This
damage would not be covered by
the vehicle warranty.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15440907) - 2022 - CRC - 12/17/21
INDEX 409
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . 133
DoorAjar Light . . . . . . . . . . . . . . . . . . . . . . . . . 115
Delayed Locking . . . . . . . . . . . . . . . . . . . 18
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . 18
Drive Belt Routing, Engine . . . . . . . . . 383
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . 232, 302
Driver Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Driver Assistance Systems . . . . . . . . . 250
Driver Behavior . . . . . . . . . . . . . . . . . . . . . 203
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . . . 115
Driver Mode Control . . . . . . . . . . . . . . . . 237
Driver Mode Control Light . . . . . . . . . 112
Driving
Assistance Systems . . . . . . . . . . . . . . . 261
Better Fuel Economy . . . . . . . . . . . . . 204
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . 274
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Environment . . . . . . . . . . . . . . . . . . . . . . 203
Hill and Mountain Roads . . . . . . . . 212
If the Vehicle is Stuck . . . . . . . . . . . . 214
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Loss of Control . . . . . . . . . . . . . . . . . . . . 207 Driving (cont'd)
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Off-Road Recovery . . . . . . . . . . . . . . . . 206
Vehicle Load Limits . . . . . . . . . . . . . . 214
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . 211
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Driving the Vehicle . . . . . . . . . . . . . . . . . . . . 2
Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . . . . . 196
E
Electric Brake Boost . . . . . . . . . . . . . . . . 233
Electric Parking Brake . . . . . . . . . . . . . . 233
Electric Parking Brake Light . . . . . . . 108
Electrical Equipment, Add-On . . . . . 284
Electrical SystemEngine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
Fuses and Circuit Breakers . . . . . . . 308
Instrument Panel Fuse Block . . . . 314
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . 294
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 106
Compartment Overview . . . . . . . . . . 289 Engine (cont'd)
Coolant Temperature Gauge . . . . . 104
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . . . . . 112
Cooling System . . . . . . . . . . . . . . . . . . . 295
Drive Belt Routing . . . . . . . . . . . . . . . . 383
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Oil Life System . . . . . . . . . . . . . . . . . . . . 292
Oil Pressure Light . . . . . . . . . . . . . . . . . 113
Overheating . . . . . . . . . . . . . . . . . . . . . . . 298
Power Messages . . . . . . . . . . . . . . . . . . 121
Running While Parked . . . . . . . . . . . 227
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Engine Air Filter Life System . . . . . . 293
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 134
Equipment, Towing . . . . . . . . . . . . . . . . . 281
Event Data Recorders . . . . . . . . . . . . . . 395
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 135
Extended Parking . . . . . . . . . . . . . . . . . . . 226
Extender, Seat Belt . . . . . . . . . . . . . . . . . . 53
Exterior Lamp Controls . . . . . . . . . . . . 129
Exterior Lamps Off Reminder . . . . . . 131
Exterior Lighting Battery Saver . . . . 135

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15440907) - 2022 - CRC - 12/17/21
412 INDEX
Lights (cont'd)Antilock Brake System (ABS)
Warning . . . . . . . . . . . . . . . . . . . . . . . . . 109
Brake System Warning . . . . . . . . . . . 108
Charging System . . . . . . . . . . . . . . . . . . 106
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . 106
Cruise Control . . . . . . . . . . . . . . . . . . . . . 114
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Driver Mode Control . . . . . . . . . . . . . . 112
Electric Parking Brake . . . . . . . . . . . . 108
Engine Coolant Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . 112
Engine Oil Pressure . . . . . . . . . . . . . . . 113
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 131
Gear Shifting . . . . . . . . . . . . . . . . . . . . . . 109
High-Beam On . . . . . . . . . . . . . . . . . . . . 114
High/Low Beam Changer . . . . . . . . . 131
Lane Keep Assist . . . . . . . . . . . . . . . . . . 110
Low Fuel Warning . . . . . . . . . . . . . . . . 114
Seat Belt Reminders . . . . . . . . . . . . . . 104
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Service Electric Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . 111
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 113
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . . . . . 112 Lights (cont'd)
Traction Off . . . . . . . . . . . . . . . . . . . . . . . 111
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . 18
Delayed Locking . . . . . . . . . . . . . . . . . . . 18
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Lockout Protection . . . . . . . . . . . . . . . . 18
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . 18
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Loss of Control . . . . . . . . . . . . . . . . . . . . . . 207
Low Fuel Warning Light . . . . . . . . . . . 114
Lower Anchors and Tethers for Children (LATCH System) . . . . . . . . . 72
Lumbar Adjustment . . . . . . . . . . . . . . . . . 40 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . 40
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . . . . . 374
Maintenance Schedule . . . . . . . . . . . . . 368
Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . 377
Malfunction Indicator Lamp . . . . . . . 106
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . 231
Map Data Updates . . . . . . . . . . . . . . . . . . 163
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 Massage
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Media Avoiding Untrusted Devices . . . . . 147
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . 41
Messages Engine Power . . . . . . . . . . . . . . . . . . . . . 121
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . 121
Mirror Rear Camera . . . . . . . . . . . . . . . . . . . . . . . 30
Mirrors Automatic Dimming . . . . . . . . . . . . . . . 29
Automatic Dimming Rearview . . . . 30
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Manual Rearview . . . . . . . . . . . . . . . . . . 30
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Tilt in Reverse . . . . . . . . . . . . . . . . . . . . . 29
Mirrors, Interior Rearview . . . . . . . . . . . 30
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Driver Control . . . . . . . . . . . . . . . . . . . . . 237
Monitor System, Tire Pressure . . . . . 327
Multi-band Antenna . . . . . . . . . . . . . . . . 147