Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
454 OnStar
vehicles. For more information,
a full description of OnStar
services, system limitations,
and OnStar User Terms,
Privacy Statement, and
Software Terms:
.Call 1-888-4ONSTAR
(1-888-466-7827).
.See www.onstar.com (U.S.).
.See www.onstar.ca (Canada).
.Call TTY 1-877-248-2080.
.PressQto speak with an
Advisor.
OnStar or connected services
cannot work unless the vehicle
is in a place where OnStar has
an agreement with a wireless
service provider for service in
that area. The wireless service
provider must also have
coverage, network capacity,
reception, and technology
compatible with OnStar or
connected services. Service
involving location information
about the vehicle cannot work
unless GPS signals are
available, unobstructed, and
compatible with the OnStar hardware. OnStar or
connected services may not
work if the OnStar equipment
is not properly installed or it
has not been properly
maintained. If equipment or
software is added, connected,
or modified, OnStar or
connected services may not
work. Other problems beyond
the control of OnStar
—such
as hills, tall buildings, tunnels,
weather, electrical system
design and architecture of the
vehicle, damage to the vehicle
in a crash, or wireless phone
network congestion or
jamming —may prevent
service.
See Radio Frequency
Statement 0446.
Services for People with
Disabilities
Advisors provide services to
help with physical disabilities
and medical conditions. Press
Qto help:
.Locate a gas station with an
attendant to pump gas.
.Find a hotel, restaurant, etc.,
that meets accessibility
needs.
.Provide directions to the
closest hospital or pharmacy
in urgent situations.
TTY Users
OnStar has the ability to
communicate to deaf,
hard-of-hearing,
or speech-impaired customers
while in the vehicle. The
available dealer-installed TTY
system can provide in-vehicle
access to all OnStar services,
except Virtual Advisor and
OnStar Turn-by-Turn
Navigation.
If equipped, TTY mode can be
turned on or off through
Settings > Apps > Phone.
When TTY mode is on, phone
calls can be made or received
with OnStar using the
infotainment display.
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
456 OnStar
Unable to Connect to
OnStar Message
If there is limited cellular
coverage or the cellular
network has reached
maximum capacity, this
message may come on. Press
Qto try the call again or try
again after driving a few miles
into another cellular area.
Vehicle and Power Issues
OnStar services require a
vehicle electrical system,
wireless service, and GPS
satellite technologies to be
available and operating for
features to function properly.
These systems may not
operate if the battery is
discharged or disconnected.
Add-on Electrical
Equipment
The OnStar system is
integrated into the electrical
architecture of the vehicle. Do
not add any electrical equipment. See Add-On
Electrical Equipment
0325.
Added electrical equipment
may interfere with the
operation of the OnStar
system and cause it to not
operate.
Vehicle Software Updates
OnStar or GM may remotely
deliver software updates or
changes to the vehicle without
further notice or consent.
These updates or changes
may enhance or maintain
safety, security, or the
operation of the vehicle or the
vehicle systems. Software
updates or changes may
affect or erase data or
settings that are stored in the
vehicle, such as saved
navigation destinations or
pre-set radio stations. Neither
OnStar nor GM is responsible
for any affected or erased
data or settings. These
updates or changes may also
collect personal information.
Such collection is described in the OnStar privacy statement
or separately disclosed at the
time of installation. These
updates or changes may also
cause a system to
automatically communicate
with GM servers to collect
information about vehicle
system status, identify
whether updates or changes
are available, or deliver
updates or changes. An active
OnStar agreement constitutes
consent to these software
updates or changes and
agreement that either OnStar
or GM may remotely deliver
them to the vehicle.
Privacy
The complete OnStar Privacy
Statement may be found at
www.onstar.com (U.S.),
or www.onstar.ca (Canada).
We recommend that you
review it. If you have any
questions, call
1-888-4ONSTAR
(1-888-466-7827) or press
Q
to speak with an Advisor.
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
INDEX 471
Routing, EngineDrive Belt . . . . . . . . . . . . . . . . . . . . . 434
Running the Vehicle While Parked . . . . . . . . . . . . . . . . 256
S
SafetyLocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Safety Defects Reporting Canadian Government . . . 447
General Motors . . . . . . . . . . . . 447
U.S. Government . . . . . . . . . . 447
Safety System Check . . . . . . . . 64
Satellite Radio . . . . . . . . . . . . . . . . . 167
Scheduling Appointments . . . . . . . . . . . . . . . . 441
Sealant Kit, Tire . . . . . . . . . . . . . . 390
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . 57
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Extender . . . . . . . . . . . . . . . . . . . . . . . 64
How to Wear SeatBelts Properly . . . . . . . . . . . . . . 58
Lap-Shoulder Belt . . . . . . . . . . . 60
Reminders . . . . . . . . . . . . . . . . . . . . 123
Replacing after a Crash . . . 65
Use During Pregnancy . . . . . 63
Seats Head Restraints . . . . . . . . . . . . . 45 Seats (cont'd)
Heated and Ventilated,
Front . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Heated, Rear . . . . . . . . . . . . . . . . . . 56
Lumbar Adjustment, Front . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Massage . . . . . . . . . . . . . . . . . . . . . . . 49
Memory . . . . . . . . . . . . . . . . . . . . . . . . 50
Power Adjustment,
Front . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Reclining Seatbacks . . . . . . . . 47
Securing Child Restraints . . . . . . . . . . . . . . . . . 95, 98
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
OnStar . . . . . . . . . . . . . . . . . . . . . . . . 453
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Vehicle Alarm . . . . . . . . . . . . . . . . . 32
Service . . . . . . . . . . . . . . . . . . . . . . . . . 226 Accessories and
Modifications . . . . . . . . . . . . . . . 327
Doing Your Own Work . . . 328
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Maintenance Records . . . . . 431
Maintenance, General
Information . . . . . . . . . . . . . . . . 423 Service (cont'd)
Parts Identification . . . . . . . 432
Scheduling
Appointments . . . . . . . . . . . . . . 441
Services Special Application . . . . . . . . 428
Servicing System . . . . . . . . . . . . . 187
Servicing the Airbag . . . . . . . . . . 76
Settings . . . . . . . . . . . . . . . . . . . . . . . . 203
Shifting
Into Park . . . . . . . . . . . . . . . . . . . . . 254
Out of Park . . . . . . . . . . . . . . . . . . 254
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . . 304
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . 152
Software Updates . . . . . . . . . . . 163
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . . 404
Special Application Services . . . . . . . . . . . . . . . . . . . . . . 428
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . 433
Speedometer . . . . . . . . . . . . . . . . . . 122
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 132
Start Assist, Hill . . . . . . . . . . . . . . 266
Start Vehicle, Remote . . . . . . . . 18
