coolant level CADILLAC XT4 2023 Owners Manual

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Introduction 3
Danger, Warning, and
Caution
Warning messages found on
vehicle labels and in this
manual describe hazards and
what to do to avoid or
reduce them.
{Danger
Danger indicates a hazard
with a high level of risk
which will result in serious
injury or death.
{Warning
Warning indicates a hazard
that could result in injury or
death.
Caution
Caution indicates a hazard
that could result in property
or vehicle damage.
A circle with a slash through it
is a safety symbol which
means“Do not,” “Do not do
this,” or“Do not let this
happen.”
Symbols
The vehicle has components
and labels that use symbols
instead of text. Symbols are
shown along with the text
describing the operation or
information relating to a
specific component, control,
message, gauge, or indicator.
M: Shown when the owner’s
manual has additional
instructions or information.
*: Shown when the service
manual has additional
instructions or information.
0: Shown when there is more
information on another page —
“see page.”
Vehicle Symbol Chart
Here are some additional
symbols that may be found on
the vehicle and what they
mean. See the features in this
manual for information.
u: Air Conditioning System
G:Air Conditioning
Refrigerant Oil
9: Airbag Readiness Light
!:Antilock Brake
System (ABS)
$: Brake System Warning
Light
9: Dispose of Used
Components Properly
P: Do Not Apply High
Pressure Water
B: Engine Coolant
Temperature
_: Flame/Fire Prohibited

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
108 Instruments and Controls
Instruments and
Controls
Controls
Steering WheelAdjustment . . . . . . . . . . . . . . . . . 109
Heated Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . 110
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Windshield Wiper/ Washer . . . . . . . . . . . . . . . . . . . . . . 110
Rear Window Wiper/ Washer . . . . . . . . . . . . . . . . . . . . . . 113
Compass . . . . . . . . . . . . . . . . . . . . . . 114
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Power Outlets . . . . . . . . . . . . . . . 115
Wireless Charging . . . . . . . . . . 115
Warning Lights, Gauges,
and Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . 118
Instrument Cluster . . . . . . . . . 119
Speedometer . . . . . . . . . . . . . . . . 122
Odometer . . . . . . . . . . . . . . . . . . . . 122
Trip Odometer . . . . . . . . . . . . . . 122
Tachometer . . . . . . . . . . . . . . . . . . 122
Fuel Gauge . . . . . . . . . . . . . . . . . . . 122 Engine Coolant
Temperature Gauge . . . . . 123
Seat Belt Reminders . . . . . . 123
Airbag Readiness Light . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 125
Charging System Light . . . 126
Malfunction Indicator Lamp (Check Engine
Light) . . . . . . . . . . . . . . . . . . . . . . . . . 126
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . 129
Antilock Brake System (ABS) Warning Light . . . . . 129
Gear Shifting Light . . . . . . . . 130
Performance Shifting Light . . . . . . . . . . . . . . . . . . . . . . . . . 130
All-Wheel-Drive Light . . . . . 130
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Vehicle Ahead Indicator . . . . . . . . . . . . . . . . . . . . . 131
Pedestrian Ahead Indicator . . . . . . . . . . . . . . . . . . . . . 131
Traction Off Light . . . . . . . . . . 131 StabiliTrak OFF Light . . . . . 132
Traction Control System
(TCS)/StabiliTrak
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Engine Coolant
Temperature Warning
Light (Uplevel) . . . . . . . . . . . . . 133
Driver Mode Control Light . . . . . . . . . . . . . . . . . . . . . . . . . 133
Tire Pressure Light . . . . . . . 134
Engine Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . 134
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 135
Security Light . . . . . . . . . . . . . . . 135
High-Beam On Light . . . . . . 135
Lamps On Reminder . . . . . . 136
Cruise Control Light . . . . . . 136
Door Ajar Light . . . . . . . . . . . . . 136
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . 136
Head-Up Display (HUD) . . . 139
Vehicle Messages
Vehicle Messages . . . . . . . . . 143
Engine Power Messages . . . . . . . . . . . . . . . . . . . 143
Vehicle Speed Messages . . . . . . . . . . . . . . . . . . . 144

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Instruments and Controls 119
Some warning lights come on
briefly when the engine is
started to indicate they are
working. When one of the
warning lights comes on and
stays on while driving, or when
one of the gauges shows
there may be a problem, check
the section that explains what
to do. Waiting to do repairs
can be costly and even
dangerous.Instrument Cluster
English Base Level Cluster Shown, Metric Similar
1. Tachometer0122
2. Driver Information Center (DIC) 0136
3. Speedometer 0122 4. Engine Coolant
Temperature Gauge 0123
5. Fuel Gauge 0122

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
120 Instruments and Controls
English Uplevel Cluster Shown, Metric Similar
1. Tachometer0122
2. Driver Information Center (DIC) 0136
3. Speedometer 0122
4. Engine Coolant Temperature Gauge 0123
5. Fuel Gauge 0122Cluster Menu
There is an interactive display
area in the center of the
instrument cluster.
Use the right steering wheel
control to open and scroll
through the different items
and displays.
Press
SorTto access the
cluster applications. Use the
thumbwheel to scroll through
the list of available features
within the applications. Not all
applications or features will be
available on all vehicles.
.Info App. This is where the
selected Driver Information
Center (DIC) displays can be
viewed. See Driver
Information Center (DIC)
0 136.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Instruments and Controls 133
The light flashes when the
TCS and/or the StabiliTrak/
ESC system is actively
working.
See Traction Control/
Electronic Stability Control
0267.
Engine Coolant
Temperature Warning
Light (Uplevel)
This light comes on briefly
while starting the vehicle.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light goes off.
Caution
The engine coolant
temperature warning light
indicates that the vehicle
has overheated. Driving with
this light on can damage the
engine and it may not be
covered by the vehicle
warranty. See Engine
Overheating 0342.
The engine coolant
temperature warning light
comes on when the engine has
overheated.
If this happens, pull over and
turn off the engine as soon as
possible. See Engine
Overheating 0342.
Driver Mode Control
Light
This light comes on when
Sport Mode is selected.
This light comes on when
Snow/Ice Mode is selected.
This light comes on when
Off-Road Mode is selected.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Driving and Operating 317
The vehicle can tow in
D (Drive). Shift the
transmission to a lower gear if
the transmission shifts too
often under heavy loads and/
or hilly conditions.
When towing at higher
altitudes, engine coolant will
boil at a lower temperature
than at lower altitudes. If the
engine is turned off
immediately after towing at
high altitude on steep uphill
grades, the vehicle could show
signs similar to engine
overheating. To avoid this, let
the engine run, preferably on
level ground, with the
transmission in P (Park) for a
few minutes before turning
the engine off. If the overheat
warning comes on, see Engine
Overheating0342.Parking on Hills
{Warning
To prevent serious injury or
death, always park your
vehicle and trailer on a level
surface when possible.
When parking your vehicle and
your trailer on a hill: 1. Press the brake pedal, but do not shift into P (Park)
yet. Turn the wheels into
the curb if facing downhill
or into traffic if facing
uphill.
2. Have someone place chocks under the trailer
wheels.
3. When the wheel chocks are in place, gradually
release the brake pedal to
allow the chocks to absorb
the load of the trailer.
4. Reapply the brake pedal. Then apply the parking
brake and shift into
P (Park). 5. Release the brake pedal.
Leaving After Parking on
a Hill
1. Apply and hold the brake
pedal.
.Start the engine.
.Shift into the
desired gear.
.Release the parking
brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the
chocks.
Maintenance When Trailer
Towing
The vehicle needs service
more often when used to tow
trailers. See Maintenance
Schedule 0425. It is especially
important to check the
automatic transmission fluid,
engine oil, axle lubricant, belts,

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
332 Vehicle Care
1. Engine Air Cleaner/Filter0337.
2. Engine Oil Fill Cap. See Engine Oil 0332.
3. Engine Oil Dipstick. See Engine Oil 0332.
4. Engine Cooling Fan (Out of View). See Cooling System
0338.
5. Brake Fluid Reservoir. See Brake Fluid 0345.
6. Battery - North America 0346.
7. Engine Coolant Surge Tank and Pressure Cap. See
Cooling System 0338.
8. Positive (+) Battery Terminal (Under Cover).
See Jump Starting - North
America 0404.
9. Windshield Washer Fluid Reservoir. See Washer
Fluid 0343.
10. Engine Compartment Fuse Block 0354. 11. Remote Negative (-)
Battery Terminal. See
Jump Starting - North
America 0404.
Engine Oil
To ensure proper engine
performance and long life,
careful attention must be paid
to engine oil. Following these
simple, but important steps
will help protect your
investment:
.Use engine oil approved to
the proper specification and
of the proper viscosity
grade. See “Selecting the
Right Engine Oil” in this
section.
.Check the engine oil level
regularly and maintain the
proper oil level. See
“Checking Engine Oil” and
“When to Add Engine Oil” in
this section.
.Change the engine oil at the
appropriate time. See Engine
Oil Life System 0335.
.Always dispose of engine oil
properly. See “What to Do
with Used Oil” in this section.
Checking Engine Oil
Check the engine oil level
regularly, every 650 km
(400 mi), especially prior to a
long trip. The engine oil
dipstick handle is a loop. See
Engine Compartment
Overview0331 for the
location.
{Warning
The engine oil dipstick
handle may be hot; it could
burn you. Use a towel or
glove to touch the dipstick
handle.
If a low oil Driver Information
Center (DIC) message displays,
check the oil level.
Follow these guidelines:
.To get an accurate reading,
park the vehicle on level
ground. Check the engine oil
level after the engine has

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Vehicle Care 339
{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
Lubricants0429 and
Maintenance Schedule 0425.
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 0342.
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.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
340 Vehicle Care
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 surethe cooling system is cool
before this is done. See
Engine Overheating
0342.
The coolant surge tank is in
the engine compartment on
the driver side of the vehicle.
See Engine Compartment
Overview 0331.
How to Add Coolant to the
Surge Tank
{Warning
Spilling coolant on hot
engine parts can burn you.
Coolant contains ethylene
glycol and it will burn if the
engine parts are hot enough.
{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
(Continued)
Warning (Continued)
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.
Caution
Failure to follow the specific
coolant fill procedure could
cause the engine to
overheat and could cause
system damage. If coolant is
not visible in the surge tank,
contact your dealer.
The coolant surge tank
pressure cap can be removed
when the cooling system,
including the surge tank
pressure cap and upper
radiator hose, is no longer hot.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Vehicle Care 341
1. Turn the pressure capslowly counterclockwise.
If a hiss is heard, wait for
that to stop. A hiss means
there is still some
pressure left.
2. Keep turning the pressure cap slowly and remove it.
3. If topping off the level inthe coolant surge tank, add
the proper mixture until
the level reaches the mark
on the front of the tank
and replace the cap.
Operate the vehicle.
Repeat steps 1–3, as
necessary.
If filling the system (such
as after servicing), follow
the Automatic Coolant
Service Fill Instructions.
Caution
If the pressure cap is not
tightly installed, coolant loss
and engine damage may
occur. Be sure the cap is
properly and tightly secured.
Automatic Coolant
Service Fill Instructions
This feature assists in filling
and removing air from the
cooling system after service of
components or when coolant
is added after being too low. To activate the fill and air
removal process:
1. With a cold system, add coolant to the indicated
mark on the surge tank.
2. Replace the cap on the surge tank.
3. Connect the vehicle to a battery charger.
4. Turn the ignition to Service Mode. See Ignition
Positions 0247.
5. Turn off the air conditioning.
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 Electronic Control Module
(ECM) to go to sleep, about
2 minutes, and repeat
Steps 3-7.