Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
330 Service and Maintenance
Because of the way people use vehicles,
maintenance needs vary. There may need to
be more frequent checks and services. The
Additional Required Services - Normal are for
vehicles that:
.Carry passengers and cargo within
recommended limits on the Tire and
Loading Information label. SeeVehicle
Load Limits 0170.
.Are driven on reasonable road surfaces
within legal driving limits.
.Use the recommended fuel. See
Recommended Fuel 0247.
Refer to the information in the Maintenance
Schedule Additional Required Services -
Normal Service.
The Additional Required Services - Severe are
for vehicles that are:
.Mainly driven in heavy city traffic in hot
weather.
.Mainly driven in hilly or mountainous
terrain.
.Frequently towing a trailer.
.Used for high speed or competitive
driving.
.Used for taxi, police, or delivery service. Refer to the information in the Maintenance
Schedule Additional Required Services -
Severe Service.
{Warning
Performing maintenance work can be
dangerous and can cause serious injury.
Perform maintenance work only if the
required information, proper tools, and
equipment are available. If they are not,
see your dealer to have a trained
technician do the work. See
Doing Your
Own Service Work 0261.
Maintenance Schedule
Tire Rotation and Required Services
Every 12 000 km (7,500 mi)
Tires are rotated to achieve a more uniform
wear for all tires. The first rotation is the
most important.
Anytime unusual wear is noticed, rotate the
tires as soon as possible, check for proper
tire inflation pressure, and check for
damaged tires or wheels. If the unusual
wear continues after the rotation, check the wheel alignment. See
When It Is Time for
New Tires 0298 and
Wheel Replacement 0302.
.Perform Multi-Point Vehicle Inspection.
See Multi-Point Vehicle Inspection (MPVI)
0 332.
.Lubricate body components. See Exterior
Care 0321.
Additional Required Services —Normal
Service
Every 12 000 km (7,500 mi)
.Check engine oil level and oil
life percentage. If needed, change engine
oil and filter, and reset oil life system. Or
when the CHANGE ENGINE OIL SOON
message displays, have the engine oil and
filter changed within the next 1 000 km
(600 mi). If driven under the best
conditions, the engine oil life system may
not indicate the need for vehicle service
for up to a year. The engine oil and filter
must be changed at least once a year and
the oil life system must be reset. Your
trained dealer technician can perform this
work. If the engine oil life system is reset
accidentally, service the vehicle within
5 000 km (3,000 mi) since the last service.
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
Service and Maintenance 331
Reset the oil life system when the oil is
changed. SeeEngine Oil Life System
0 266.
.When the REPLACE AT NEXT OIL CHANGE
message displays, the engine air filter
should be replaced at the next engine oil
change. When the REPLACE ENGINE AIR
FILTER SOON message displays, the
engine air filter should be replaced at the
earliest convenience. Reset the engine air
filter life system after the engine air filter
is replaced. See Engine Air Filter Life
System 0267.
Every 36 000 km (22,500 mi)
.Passenger compartment air filter
replacement (or every 24 months,
whichever occurs first). More frequent
replacement may be needed if the vehicle
is driven in areas with heavy traffic, poor
air quality, areas with high dust levels or
are sensitive to environmental allergens.
Filter replacement may also be needed if
you notice reduced airflow, windows
fogging up, or odors. Your local GM
Service location can help you determine
when it is the right time to replace your
filter. Every 96 000 km (60,000 mi)
.Replace spark plugs. Inspect spark plug
wires and/or boots.
Every 161 000 km (100,000 mi)
.Replace hood and/or body lift support gas
struts. Or every 10 years, whichever
comes first. See Gas Strut(s)0277.
Every 240 000 km (150,000 mi)
.Change rear axle fluid, if equipped with
AWD. Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water can
overcome the seals and contaminate the
transfer case fluid. Contaminated fluid will
decrease the life of the transfer case and/
or axles and should be replaced.
.Drain and fill engine cooling system. Or
every six years, whichever comes first.
See Cooling System 0268.
Severe Conditions Requiring More
Frequent Maintenance*
.Public service, military, or commercial use
vehicles to include the following:
‐ Ambulances, police cars, and
emergency rescue vehicles. ‐
Civilian vehicles such as light duty
pick-up trucks, SUVs, and passenger
cars that are used in military
applications.
‐ Recovery vehicles such as tow trucks
and flatbed single vehicle carriers or
any vehicle that is consistently used in
towing trailers or other loads.
‐ High use commercial vehicles such as
courier delivery vehicles, private
security patrol vehicles, or any vehicles
that operate on a 24–hour basis.
‐ Any vehicle consistently operated in a
high sand or dust environment such as
those used on oil pipelines and similar
applications.
.Vehicles that are regularly used for short
trips of 6 km (4 mi) or less.
The oil life indicator will show you when
to change the oil and filter. Under severe
conditions the indicator may come on
before 12 000 km (7,500 mi).
* Footnote: Under extreme driving
conditions listed above, it may be
necessary to replace your spark plugs at
more frequent intervals. For further
assistance in determining the most
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
338 Technical Data
Vehicle Data
Capacities and Specifications
ApplicationCapacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and charge amount, see the refrigerant label under the hood. See yourdealer for more information.
Engine Cooling System* 9.4 L 10.0 qt
Engine Oil with Filter 5.0 L 5.3 qt
Fuel Tank
IFWD 60.2 L 15.9 gal
IAWD 61.7 L 16.3 gal
Rear Axle (AWD) 0.87 L 0.92 qt
Wheel Nut Torque 190 Y140 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this manual. Recheck fluid level
after filling.
*Engine cooling system capacity values are based on the entire cooling system and its components.
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
358 Connected Services
Ensuring Security
.Change the default passwords for the
Wi-Fi hotspot and myCadillac mobile app.
Make these passwords different from
each other and use a combination of
letters and numbers to increase the
security.
.Change the default name of the SSID
(Service Set Identifier). This is the network
name that is visible to other wireless
devices. Choose a unique name and avoid
family names or vehicle descriptions.
Wi-Fi Hotspot (If Equipped)
The vehicle may have a built-in Wi-Fi
hotspot that provides access to the Internet
and web content at 4G LTE speed. Up to
seven mobile devices can be connected.
A data plan is required. Use the in-vehicle
controls only when it is safe to do so. 1. To retrieve Wi-Fi hotspot information, press
=to open the OnStar app on the
infotainment display, then select Wi-Fi
Hotspot. On some vehicles, touch Wi-Fi
or Wi-Fi Settings on the screen.
2. The Wi-Fi settings will display the Wi-Fi hotspot name (SSID), password, and on
some vehicles, the connection type (no
Internet connection, 3G, 4G, 4G LTE), and signal quality (poor, good, excellent). The
LTE icon shows connection to Wi-Fi. It is
possible that the icon may not illuminate
even though the vehicle has an active
connection.
3. To change the SSID or password, press
Qor call 1-888-4ONSTAR to connect
with an Advisor. On some vehicles, the
SSID and password can be changed in
the Wi-Fi Hotspot menu.
After initial set-up, your vehicle’s Wi-Fi
hotspot will connect automatically to your
mobile devices. Manage data usage by
turning Wi-Fi on or off on your mobile
device, by using the myCadillac mobile app,
or by contacting an OnStar Advisor. On
some vehicles, Wi-Fi can also be managed
from the Wi-Fi Hotspot menu.
MyCadillac Mobile App (If Available)
Download the myCadillac mobile app to
compatible Apple and Android smartphones.
Cadillac users can access the following
services from a smartphone:
.Remotely start/stop the vehicle,
if factory-equipped.
.Lock/unlock doors, if equipped with
automatic locks.
.Activate the horn and lamps.
.Check the vehicle fuel level, oil life, or
tire pressure, if factory-equipped with the
Tire Pressure Monitor System.
.Send destinations to the vehicle.
.Locate the vehicle on a map (U.S.
market only).
.Turn the vehicle's Wi-Fi hotspot on/off,
manage settings, and monitor data
consumption, if equipped.
.Locate a dealer and schedule service.
.Request Roadside Assistance.
.Set a parking reminder with pin drop,
take a photo, make a note, and set a
timer.
.Connect with Cadillac on social media.
Features are subject to change. For
myCadillac mobile app information and
compatibility, see my.cadillac.com.
An active OnStar or connected service plan
may be required. A compatible device,
factory-installed remote start, and power
locks are required. Data rates apply. See
www.onstar.com for details and system
limitations.
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
366 Index
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Leveling ControlHeadlamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Lighting Adaptive Forward . . . . . . . . . . . . . . . . . . . . . . 125
Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Illumination Control . . . . . . . . . . . . . . . . . . . 128
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Lights
Adaptive Cruise Control . . . . . . . . . . . . . . . . . 111
Adaptive Forward Lighting (AFL)Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . 101
All-Wheel-Drive . . . . . . . . . . . . . . . . . . . . . . . . 105
Antilock Brake System (ABS) Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Automatic Emergency Braking (AEB) Disabled . . . . . . . . . . . . . . . . . . . . . . . 106
Brake System Warning . . . . . . . . . . . . . . . . 104
Charging System . . . . . . . . . . . . . . . . . . . . . . 102
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Cruise Control Light . . . . . . . . . . . . . . . . . . . . . 111
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Driver Mode Control . . . . . . . . . . . . . . . . . . . 108
Electric Parking Brake . . . . . . . . . . . . . . . . . . 104 Lights (cont'd)
Electronic Stability Control
(ESC), Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Engine Coolant Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . 109
Gauges and Indicators . . . . . . . . . . . . . . . . . . 94
Gear Shifting . . . . . . . . . . . . . . . . . . . . . . . . . . 105
High-Beam On . . . . . . . . . . . . . . . . . . . . . . . . . 110
Lane Keep Assist . . . . . . . . . . . . . . . . . . . . . . . 106
Low Fuel Warning . . . . . . . . . . . . . . . . . . . . . 109
Performance Shifting . . . . . . . . . . . . . . . . . . 105
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . 100
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Service Electric Parking Brake . . . . . . . . . . 104
Super Cruise . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Traction Control System (TCS)/Electronic Stability Control
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Traction Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . . . . . 18
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . 17
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 18
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Low Fuel Warning Light . . . . . . . . . . . . . . . . . 109
Lower Anchors and Tethers for
Children (LATCH System) . . . . . . . . . . . . . . . . 69
Lumbar Adjustment . . . . . . . . . . . . . . . . . . . . . . . 38 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Maintenance Schedule . . . . . . . . . . . . . . . . . . . 330 Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Malfunction Indicator Lamp . . . . . . . . . . . . . . 102
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Massage
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Media Avoiding Untrusted Devices . . . . . . . . . . . . 138
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Messages Engine Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Mirrors Automatic Dimming . . . . . . . . . . . . . . . . . . . . 28