2021 CADILLAC CT4 Owner's Manual

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
192 INFOTAINMENT SYSTEM
Warning
This Data may contain inaccurate or
incomplete information due to the
passage of time, changing
circumstances, sources used, and the
nature of collecting comprehensive
geographic data, any of which may
lead to incorrect results.
No Warranty
This Data is provided to you“as is,”
and you agree to use it at your own
risk. HERE and its licensors (and their
licensors and suppliers) make no
guarantees, representations,
or warranties of any kind, express or
implied, arising by law or otherwise,
including but not limited to, content,
quality, accuracy, completeness,
effectiveness, reliability, fitness for a
particular purpose, usefulness, use or
results to be obtained from this Data,
or that the Data or server will be
uninterrupted or error free.
Disclaimer of Warranty
THE DATABASE IS PROVIDED ON AN
“AS IS” AND“WITH ALL FAULTS
BASIS” AND HARMAN (AND THEIR
LICENSORS AND SUPPLIERS) EXPRESSLY DISCLAIM ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF
NON-INFRINGEMENT,
MERCHANTABILITY, SATISFACTORY
QUALITY, ACCURACY, TITLE AND
FITNESS FOR A PARTICULAR
PURPOSE. NO ORAL OR WRITTEN
ADVICE OR INFORMATION
PROVIDED BY HARMAN (OR ANY OF
THEIR LICENSORS, AGENTS,
EMPLOYEES, OR THIRD PARTY
PROVIDERS) SHALL CREATE A
WARRANTY, AND YOU ARE NOT
ENTITLED TO RELY ON ANY SUCH
ADVICE OR INFORMATION. THIS
DISCLAIMER OF WARRANTIES IS AN
ESSENTIAL CONDITION OF THIS
AGREEMENT.
Disclaimer of Liability
HERE AND ITS LICENSORS
(INCLUDING THEIR LICENSORS AND
SUPPLIERS) SHALL NOT BE LIABLE
TO YOU IN RESPECT OF ANY CLAIM,
DEMAND OR ACTION, IRRESPECTIVE
OF THE NATURE OF THE CAUSE OF
THE CLAIM, DEMAND OR ACTION
ALLEGING ANY LOSS, INJURY OR
DAMAGES, DIRECT OR INDIRECT,
WHICH MAY RESULT FROM THE
USE OR POSSESSION OF THIS DATA;
OR FOR ANY LOSS OF PROFIT,
REVENUE, CONTRACTS OR SAVINGS,
OR ANY OTHER DIRECT, INDIRECT,
INCIDENTAL, SPECIAL OR
CONSEQUENTIAL DAMAGES
ARISING OUT OF YOUR USE OF OR
INABILITY TO USE THIS DATA, ANY
DEFECT IN THIS DATA, OR THE
BREACH OF THESE TERMS OR
CONDITIONS, WHETHER IN AN
ACTION IN CONTRACT OR TORT OR
BASED ON A WARRANTY, EVEN IF
HERE OR ITS LICENSORS HAVE
BEEN ADVISED OF THE POSSIBILITY
OF SUCH DAMAGES. Some States,
Territories, and Countries do not allow
certain liability exclusions or damages
limitations, so to that extent the
above may not apply to you.
Export Control
You agree not to export from
anywhere any part of the Data
provided to you or any direct product
thereof except in compliance with,
and with all licenses and approvals
required under, applicable export laws,

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
INFOTAINMENT SYSTEM 193
rules and regulations. Entire
Agreement: These terms and
conditions constitute the entire
agreement between HERE (and its
licensors, including their licensors and
suppliers) and you pertaining to the
subject matter hereof, and supersedes
in their entirety any and all written or
oral agreements previously existing
between us with respect to such
subject matter.
Governing Law
The above terms and conditions shall
be governed by the laws of the State
of Illinois, without giving effect to (i)
its conflict of laws provisions, or (ii)
the United Nations Convention for
Contracts for the International Sale of
Goods, which is explicitly excluded.
You agree to submit to the
jurisdiction of the State of Illinois for
any and all disputes, claims, and
actions arising from or in connection
with the Data provided to you
hereunder.Government End Users
If the Data is being acquired by or on
behalf of the United States
government or any other entity
seeking or applying rights similar to
those customarily claimed by the
United States government, this Data is
a
“commercial item ”as that term is
defined at 48 C.F.R. (“FAR”) 2.101, is
licensed in accordance with this End
User License Agreement, and each
copy of Data delivered or otherwise
furnished shall be marked and
embedded as appropriate with the
following “Notice of Use,” and be
treated in accordance with such
Notice:NOTICE OF USE
CONTRACTOR (MANUFACTURER/
SUPPLIER)
NAME:
HERE North America, LLC
CONTRACTOR (MANUFACTURER/
SUPPLIER)
ADDRESS:
425 West Randolph Street, Chicago,
IL 60606.
This Data is a commercial item as
defined in FAR 2.101 and is subject to
the End User License Agreement
under which this Data was provided.
© 2014 HERE North America, LLC. All
rights reserved.
If the Contracting Officer, federal
government agency, or any federal
official refuses to use the legend
provided herein, the Contracting
Officer, federal government agency,
or any federal official must notify
HERE prior to seeking additional or
alternative rights in the Data.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
194 INFOTAINMENT SYSTEM
Unicode
Copyright © 1991-2010 Unicode, Inc.
All rights reserved. Distributed under
the Terms of Use in
http://www.unicode.org/
copyright.html.
Free Type Project
Portions of this software are
copyright © 2010 The FreeType
Project (http://www.freetype.org). All
rights reserved.
Open Source SW
Further information concerning the
OSS licenses is shown in the
infotainment display.
QNX
Portions of this software are
copyright © 2008-2011, QNX Software
Systems. All rights reserved.
Part C–EULA
Copyright © 2011, Software Systems
GmbH & Co. KG. All Rights Reserved.
The product you have purchased
("Product") contains Software
(Runtime Configuration No. 505962;
"Software") which is distributed by or on behalf of the Product manufacturer
"Manufacturer") under license from
Software Systems Co. ("QSSC"). You
may only use the Software in the
Product and in compliance with the
license terms below.
Subject to the terms and conditions of
this License, QSSC hereby grants you
a limited, non-exclusive,
non-transferable license to use the
Software in the Product for the
purpose intended by the
Manufacturer. If permitted by the
Manufacturer, or by applicable law,
you may make one backup copy of the
Software as part of the Product
software. QSSC and its licensors
reserve all license+C31 rights not
expressly granted herein, and retain
all right, title and interest in and to all
copies of the Software, including all
intellectual property rights therein.
Unless required by applicable law you
may not reproduce, distribute or
transfer, or de-compile, disassemble or
otherwise attempt to unbundle,
reverse engineer, modify or create
derivative works of, the Software. You
agree: (1) not to remove, cover or alter
any proprietary notices, labels ormarks in or on the Software, and to
ensure that all copies bear any notice
contained on the original; and (2) not
to export the Product or the Software
in contravention of applicable export
control laws.
EXCEPT TO THE EXTENT
OTHERWISE REQUIRED BY
APPLICABLE LAW, QSSC AND ITS
LICENSORS PROVIDE THE
SOFTWARE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, EITHER
EXPRESS OR IMPLIED INCLUDING,
WITHOUT LIMITATION, ANY
WARRANTIES OR CONDITIONS OF
TITLE, NON-INFRINGEMENT,
MERCHANTABILITY OR FITNESS FOR
A PARTICULAR PURPOSE. ANY
WARRANTIES OR OTHER
PROVISIONS OFFERED BY THE
MANUFACTURER OR ITS
DISTRIBUTOR(S) THAT DIFFER
FROM THIS LICENSE ARE OFFERED
BY THE MANUFACTURER OR ITS
DISTRIBUTOR(S) ALONE AND NOT
BY QSSC, ITS AFFILIATES OR THEIR
LICENSORS. YOU ASSUME ANY

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
INFOTAINMENT SYSTEM 195
RISKS ASSOCIATED WITH YOUR USE
OF THE SOFTWARE UNDER THIS
LICENSE.
EXCEPT TO THE EXTENT
OTHERWISE REQUIRED BY
APPLICABLE LAW (SUCH AS IN THE
CASE OF DELIBERATE OR GROSSLY
NEGLIGENT ACTS), IN NO EVENT
SHALL QSSC, ITS AFFILIATES OR
THEIR LICENSORS BE LIABLE TO
YOU UNDER ANY LEGAL THEORY,
WHETHER IN TORT (INCLUDING
NEGLIGENCE), CONTRACT OR
OTHERWISE, FOR DAMAGES,
INCLUDING ANY DIRECT, INDIRECT,
SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES OF ANY
CHARACTER ARISING AS A RESULT
OF THIS LICENSE OR OUT OF THE
USE OR INABILITY TO USE THE
PRODUCT (INCLUDING BUT NOT
LIMITED TO DAMAGES FOR LOSS OF
GOODWILL, WORK STOPPAGE,
PRODUCT FAILURE OR
MALFUNCTION, OR ANY AND ALL
OTHER COMMERCIAL DAMAGES OR
LOSSES), EVEN IF QSSC, ITS
AFFILIATES OR THEIR LICENSORS
HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.WMA
This product is protected by certain
intellectual property rights of
Microsoft. Use or distribution of such
technology outside of this product is
prohibited without a license from
Microsoft.
For more information on the Software,
including any open source software
license terms (and available source
code) as well as copyright attributions
applicable to the Runtime
Configuration indicated above, please
contact the Manufacturer or contact
QSSC at 175 Terence Matthews
Crescent, Kanata, Ontario, Canada
K2M 1W8 ([email protected]).
Linotype
Helvetica is a trademark of Linotype
Corp. registered in the U.S. Patent and
Trademark Office and may be
registered in certain other
jurisdictions in the name of Linotype
Corp. or its licensee Linotype GmbH.
Usage in text form of each of the
Licensed Trademarks is:
The trademark attribution
requirements for the Licensed
Trademarks may be viewed at
http://www.linotype.com/2061-19414/
trademarks.html.
END USER NOTICE
The marks of companies displayed by
this product to indicate business
locations are the marks of their
respective owners. The use of such
marks in this product does not imply
any sponsorship, approval,
or endorsement by such companies of
this product.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
196 CLIMATE CONTROLS
Climate Controls
Climate Control Systems
Dual Automatic Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Maintenance
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Climate Control Systems
Dual Automatic Climate Control System
The climate control buttons on the center stack and on the climate control
display are used to adjust the heating, cooling, and ventilation system. Center
Stack Climate Controls
1. ON/OFF (Power)
2. AUTO (Automatic Operation)
3. Air Delivery Mode Control
4. Driver Temperature Controls
5. Fan Control
6. Passenger Temperature Controls7. A/C (Air Conditioning)
8. Recirculation
9. SYNC (Synchronized Temperature)
10. Defrost
11. Rear Window Defogger

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
CLIMATE CONTROLS 197
Climate Control Display
1. Driver and Passenger TemperatureDisplays
2. Fan Control
3. Driver and Passenger Temperature Controls
4. Sync (Synchronized Temperature)
5. Recirculation
6. Air Delivery Mode Control
7. Auto (Automatic Operation)
8. A/C (Air Conditioning)
9. On/Off (Power) The fan speed, air delivery mode, air
conditioning, driver and passenger
temperatures, recirculation, and Sync
settings can be controlled by touching
CLIMATE icon on the infotainment
Home Page or the climate button in
the application tray. A selection can
then be made on the front climate
control page displayed. See the
infotainment manual.
Climate Control Status Display
The climate control status display
appears briefly when the center stack
climate controls are adjusted.
Climate Control Influence on
Fuel Economy
The climate control system depends
on other vehicle systems for heat and
power input. Certain climate control
settings can lead to higher fuel usage.
The following climate control settings
use more fuel:
.MAX air conditioning mode
.Defrost mode
.Extreme temperature settings, such
as 15° C (60° F) or 32° C (90° F)
.High fan speed settings
To help reduce fuel usage:
.Use the full automatic control as
described under “Automatic
Operation.”
.Select a temperature setting that is
higher in hot weather and lower in
cold weather.
.Turn off the air conditioning when
it is not needed.
.Only use defrost to clear the
windows.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
198 CLIMATE CONTROLS
Automatic Operation
The system automatically controls the
following four functions to heat or
cool the vehicle to the desired
temperature:
.Fan Speed
.Air Delivery Mode
.Air Conditioning
.Recirculation
When the AUTO indicator light is lit,
all four functions are operating
automatically. Each function can be
manually set and the selected setting
will be shown. This cancels full
automatic operation and the AUTO
indicator light turns off. Functions
that are not manually set will
continue to be automatically
controlled, although the AUTO
indicator light will not be lit.
To place the system in
automatic mode: 1. Press AUTO.
2. Set the driver and passenger temperature. To find your comfort setting, start
with 22 °C (72 °F) and allow the
system time to stabilize. Then
adjust the temperature as needed
for best comfort.
To improve fuel efficiency and to cool
the vehicle faster, recirculation may be
automatically selected in warm
weather.
The recirculation light will not come
on when automatically controlled.
Press
@to manually select
recirculation; press it again to select
outside air.
Do not cover the solar sensor on the
top of the instrument panel near the
windshield. This sensor regulates air
temperature based on sun load. See
“Sensors ”later in this section.
Manual Operation
On/Off : Press to turn the climate
control system on or off. When the
system is off, outside air will be
prevented from entering the vehicle.
When the system is on or a button is
pressed, the climate control system
will turn on and deliver airf low per
the current setting.
9: Press button up or down to
increase or decrease the fan speed.
Press AUTO to return to automatic
operation.
Driver and Passenger Temperature
Control : The temperature can be
adjusted separately for the driver and
passenger.
Press button up or down to increase
or decrease the driver or passenger
temperature setting.
The driver side or passenger side
temperature display shows the
temperature setting increasing or
decreasing.
SYNC : Press to link the passenger
and rear climate temperature settings,
if equipped, to the driver setting. The
SYNC indicator light will turn on.
When the passenger or rear climate
temperature settings are adjusted, the
SYNC indicator light is off.
Air Delivery Mode Control : Press
Y,
[, orzto change the direction of
the airf low. An indicator light comes

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
CLIMATE CONTROLS 199
on in the selected mode button.
Multiple buttons can be selected
simultaneously.
Changing the mode cancels the
automatic operation and the system
goes into manual mode. Press AUTO
to return to automatic operation.
z:This mode clears the windows of
fog or moisture. Air is directed to the
windshield and side window vents.
The system automatically forces
outside air into the vehicle and the air
conditioning compressor will run,
unless the outside temperature is
close to freezing.
Y: Air is directed to the instrument
panel outlets.
[: Air is directed to the floor
outlets, with some to the windshield,
side window outlets, outboard panel
outlets, and second row floor outlets.
0: Press to clear the windshield of
fog or frost more quickly. Air is
directed to the windshield and the
side window outlets. The air conditioning compressor also comes
on, unless the outside temperature is
below freezing.
Do not drive the vehicle until all
windows are clear.
See
Air Vents 0200.
A/C : Press to turn the air
conditioning system on or off. An
indicator light comes on to show that
the air conditioning is enabled. If the
fan is turned off, the air conditioner
will not run. The A/C light will stay on
even if the outside temperatures are
below freezing.
@: Press to turn on recirculation.
An indicator light comes on. Air is
recirculated to quickly cool the inside
of the vehicle. It can also be used to
help reduce outside air and odors that
enter the vehicle. The air conditioning
compressor also comes on when this
mode is activated.
Rear Window Defogger
The rear window defogger uses a
warming grid to remove fog from the
rear window.
K: Press to turn the rear window
defogger on or off. An indicator light
on the button comes on to show that
the rear window defogger is on.
The rear window defogger only works
when the ignition is on. The defogger
turns off if the ignition is turned to
off or ACC/ACCESSORY.
Caution
Using a razor blade or sharp object
to clear the inside rear window can
damage the rear window defogger.
Repairs would not be covered by
the vehicle warranty. Do not clear
the inside rear window with sharp
objects.
Heated Mirror : If equipped with
heated outside mirrors, the mirrors
heat to help clear fog or frost from the
surface of the mirror when the rear
window defog button is pressed. See
Heated Mirrors 025.
Remote Start Climate Control
Operation : If equipped with remote
start, the climate control system may
run when the vehicle is started
remotely. The rear defog may come on