Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
ONSTAR 353
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 by touching Settings, then
Apps, and then Phone. When TTY mode is on, phone calls can be made
or received with OnStar using the
infotainment display.
OnStar Personal Identification
Number (PIN)
A PIN is needed to access some
OnStar services. The PIN will need to
be changed the first time when
speaking with an Advisor. To change
the OnStar PIN, contact an OnStar
Advisor by pressing
Qor calling
1-888-4ONSTAR.
Warranty
OnStar equipment may be warranted
as part of the vehicle warranty.
Languages
The vehicle can be programmed to
respond in multiple languages. Press
Qand ask for an Advisor. Advisors
are available in English, Spanish, and
French. Available languages may vary
by country.
Potential Issues
OnStar cannot perform Remote Door
Unlock or Stolen Vehicle Assistance
after the vehicle has been off
continuously for 10 days without an
ignition cycle. If the vehicle has not
been started for 10 days, OnStar can
contact Roadside Service or a
locksmith to help gain access to the
vehicle.
Global Positioning System (GPS)
. Obstruction of the GPS can occur
in a large city with tall buildings;
in parking garages; around
airports; in tunnels and
underpasses; or in an area with
very dense trees. If GPS signals are
not available, the OnStar system
should still operate to call OnStar.
However, OnStar could have
difficulty identifying the exact
location.
. In emergency situations, OnStar
can use the last stored GPS
location to send to emergency
responders.
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
360 INDEX
IndexA
About Driving the Vehicle . . . . . . . . . . . . . 2
Accessories and Modifications . . . . . 243
Accessory Power . . . . . . . . . . . . . . . . . . . . 177
Active Fuel Management . . . . . . . . . . . 180
Adaptive Cruise Control . . . . . . . . . . . . 197
Add-On Electrical Equipment . . . . . . 239
Additional InformationOnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Adjustments Lumbar, Front Seats . . . . . . . . . . . . . . . . 43
Air Cleaner/Filter, Engine . . . . . . . . . . 251
Air Conditioning . . . . . . . . . . . . . . . . . . . . 148
Air Filter
Life System . . . . . . . . . . . . . . . . . . . . . . . . 250
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . . . . . 153
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
How Does an Airbag Restrain? . . . . . 64
Passenger Sensing System . . . . . . . . . 66
What Makes an Airbag Inflate? . . . . 64
What Will You See after anAirbag Inflates? . . . . . . . . . . . . . . . . . . . 64 Airbag System (cont'd)
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Where Are the Airbags? . . . . . . . . . . . . 61
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Passenger Status Indicator . . . . . . . 114
Readiness Light . . . . . . . . . . . . . . . . . . . 114
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
System Check . . . . . . . . . . . . . . . . . . . . . . . 60
Alarm Vehicle Security . . . . . . . . . . . . . . . . . . . . . 29
Alert Lane Change . . . . . . . . . . . . . . . . . . . . . . 222
Rear Pedestrian . . . . . . . . . . . . . . . . . . . 214
Side Blind Zone (SBZA) . . . . . . . . . . 221
All-Season Tires . . . . . . . . . . . . . . . . . . . . . 273
All-Wheel Drive . . . . . . . . . . . . . . . .188, 260 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Antilock Brake System (ABS) . . . . . . 188 Warning Light . . . . . . . . . . . . . . . . . . . . 118
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Armrest Storage . . . . . . . . . . . . . . . . . . . . . . 93
Assistance Systems for Driving . . . . 215
