2020 CADILLAC CT4 display

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
SERVICE AND MAINTENANCE 303
Proper vehicle maintenance helps to
keep the vehicle in good working
condition, improves fuel economy, and
reduces vehicle emissions.
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. See
Vehicle Load Limits 0154.
. Are driven on reasonable road
surfaces within legal driving limits.
. Use the recommended fuel. See
Recommended Fuel (LSY 2.0L L4
Turbo Engine) 0221 or
Recommended Fuel (L3B 2.7L L4
Turbo Engine) 0221.
Refer to the information in the
Maintenance Schedule Additional
Required Services - Normal chart.
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.
. 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 chart.
{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 0235.
Maintenance Schedule
Owner Checks and Services
Check the engine oil level. See Engine
Oil 0241.
Once a Month
. Check the tire inflation pressures.
See Tire Pressure 0275.
. Inspect the tires for wear. See Tire
Inspection 0280.
. Check the windshield washer fluid
level. See Washer Fluid 0252.
Engine Oil Change
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)

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
336 ONSTAR
Press=to:
. Open the OnStar app on the
infotainment display. See the
infotainment manual for
information on how to use the
OnStar app.
Or
. Give OnStar Turn-by-Turn
Navigation voice commands.
. Obtain and customize the Wi-Fi
hotspot name or SSID and
password, if equipped.
Press
Qto connect to an Advisor to:
. Verify account information or
update contact information.
. Get driving directions.
. Receive a Diagnostic check of the
vehicle's key operating systems.
. Receive Roadside Service.
. Manage Wi-Fi Settings,
if equipped. Press
>to get a priority connection
to an OnStar Advisor available 24/7 to:
. Get help for an emergency.
. Be a Good Samaritan or respond
to an AMBER Alert.
. Get assistance in severe weather
or other crisis situations and find
evacuation routes.OnStar Services
Emergency
Emergency Services require an active
safety and security plan. With
Automatic Crash Response, built-in
sensors can automatically alert a
specially trained OnStar Advisor who
is immediately connected in to the
vehicle to help.
Press
>for a priority connection to
an OnStar Advisor who can contact
emergency service providers, direct
them to your exact location, and relay
important information.
With OnStar Crisis Assist, specially
trained Advisors are available
24 hours a day, 7 days a week, to
provide a central point of contact,
assistance, and information during a
crisis.
With Roadside Service, Advisors can
locate a nearby service provider to
help with a flat tire, a battery jump,
or an empty gas tank.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
338 ONSTAR
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 0330.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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
CONNECTED SERVICES 341
Connected Services
Connected Services
Navigation . . . . . . . . . . . . . . . . . . . . . . . . 341
Connections . . . . . . . . . . . . . . . . . . . . . . 342
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 343
Connected Services
Navigation
Navigation requires a specific OnStar
or connected service plan.
Press
Qto receive Turn-by-Turn
directions or have them sent to the
vehicle’s navigation screen,
if equipped.
Turn-by-Turn Navigation
1. PressQto connect to an
Advisor.
2. Request directions to be downloaded to the vehicle.
3. Follow the voice-guided commands.
Using Voice Commands During a
Planned Route
Functionality of the Voice Command
button, if equipped, may vary by
vehicle and region. For some vehicles,
press
=to open the OnStar app on
the infotainment display. For other
vehicles press
=as follows. Cancel Route
1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Cancel route.” System
responds: “Do you want to cancel
directions?”
3. Say “Yes.”System responds: “OK,
request completed, thank you,
goodbye.”
Route Preview
1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Route preview.” System
responds with the next three
maneuvers.
Repeat
1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Repeat.” System responds
with the last direction given,
then responds with “OnStar
ready,” then a tone.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
342 CONNECTED SERVICES
Get My Destination1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Get my destination.” System
responds with the address and
distance to the destination, then
responds with “OnStar ready,”
then a tone.
Send Destination to Vehicle
Directions can be sent to the vehicle’s
navigation screen, if equipped.
Press
Q, then ask the Advisor to
download directions to the vehicle’s
navigation system, if equipped. After
the call ends, the navigation screen
will provide prompts to begin driving
directions. Routes that are sent to the
navigation screen can only be
canceled through the navigation
system.
See www.onstar.com (U.S.) or
www.onstar.ca (Canada).
Connections
The following services help with
staying connected. For coverage maps, see
www.onstar.com (U.S.) or
www.onstar.ca (Canada).
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 your network’s 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

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
348 INDEX
FusesEngine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Fuses and Circuit Breakers . . . . . . . 260
Instrument Panel Fuse Block . . . . 262
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
G
Garage Door Opener . . . . . . . . . . . . . . . . 121
Programming . . . . . . . . . . . . . . . . . . . . . . 121
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . 257
Gauges
Engine Coolant Temperature . . . . . . 97
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . 96
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . 96
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . 96
Warning Lights and Indicators . . . . 92
General Information
Service and Maintenance . . . . . . . . 302
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 234
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . 258
Hazard Warning Flashers . . . . . . . . . . 128
Head Restraints . . . . . . . . . . . . . . . . . . . . . . 34
Head-up Display . . . . . . . . . . . . . . . . . . . . 111
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 128
Bulb Replacement . . . . . . . . . . . . . . . . 258
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . . . . 127
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 127
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . 259
High-Beam On Light . . . . . . . . . . . . . . 107
High/Low Beam Changer . . . . . . . . . 127
Lamps On Reminder . . . . . . . . . . . . . . 108
Heated Steering Wheel . . . . . . . . . . . . . . . . . . . . . . 86
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . 27
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
High-Beam On Light . . . . . . . . . . . . . . . . 107
High-Speed Operation . . . . . . . . . . . . . . 276
Hill and Mountain Roads . . . . . . . . . . 151 Hill Start Assist (HSA) . . . . . . . . . . . . . 181
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
How to Wear Seat Belts Properly . . . 45
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
I
Ignition Positions . . . . . . . . . . . . . . . . . . . 158
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Indicator
Pedestrian Ahead . . . . . . . . . . . . . . . . . 104
Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . 104
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Information Publication Ordering . . . . . . . . . . . . . 330
Infotainment . . . . . . . . . . . . . . . . . . . . . . . . 133
Infotainment System . . . . . . . . . . . . . . . 334
Instrument Cluster . . . . . . . . . . . . . . . . . . 93
Instrument Panel Overview . . . . . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . . . 28
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . 288