2023 CADILLAC CT4 ignition

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
148 Lighting
If equipped, the DRL will come
on when all of the following
conditions are met:
.The ignition is on.
.The exterior lamp control is
in AUTO.
.The light sensor determines
it is daytime.
The DRL turn off when the
headlamps are turned to
Oor
the ignition is off.
For vehicles first sold in
Canada, the DRL can only be
turned off when the vehicle is
parked.
Automatic Headlamp
System
When the exterior lamp
control is set to AUTO and it is
dark enough outside, the
headlamps come on
automatically.
The light sensor is on top of
the instrument panel or on the
windshield near the rearview
mirror. Do not cover the
sensor, otherwise the
headlamps will come on when
they are not needed.
The system may also turn on
the headlamps when driving
through a parking garage or
tunnel.
If the vehicle is started in a
dark garage, the automatic
headlamp system comes on
immediately. If it is light
outside when the vehicle
leaves the garage, there is a slight delay before the
automatic headlamp system
turns off the headlamps.
During that delay, the
instrument cluster may not be
as bright as usual. Make sure
the instrument panel
brightness control is in the full
bright position. See
Instrument Panel Illumination
Control
0150.
When it is bright enough
outside, the headlamps will
turn off.
The automatic headlamp
system turns off when the
exterior lamp control is turned
to
Oor the ignition is off. For
vehicles sold in Canada, this
control only works when the
transmission is in P (Park).
Lights On with Wipers
If the windshield wipers are
activated in daylight with the
engine on, and the exterior
lamp control is in AUTO, the
headlamps, parking lamps, and
other exterior lamps come on.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Lighting 153
Battery Power
Protection
This feature helps prevent the
battery from being drained,
if the interior courtesy lamps
or reading lamps are
accidentally left on. If any of
these lamps are left on, they
automatically turn off after
10 minutes, if the ignition is off.
The lamps will not come back
on again until one of the
following occurs:
.The ignition is turned on.
.The doors are closed and
then re-opened.
Exterior Lighting
Battery Saver
The exterior lamps turn off
about 10 minutes after the
vehicle is turned off, if the
parking lamps or headlamps
have been manually left on.This protects against draining
the battery. To restart the
10-minute timer, turn the
exterior lamp control to the
O
position and then back to the
;or2position.
To keep the lamps on for more
than 10 minutes, the vehicle
must be on or in
accessory mode.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
186 Infotainment System
along with the system’s voice
recognition database. This
allows you to speak more
naturally when using voice
recognition.
Using Voice Recognition
Voice recognition becomes
available once the system has
been initialized. This begins
when the ignition is turned on.
Initialization may take a few
moments.1. Press
gon the steering
wheel controls to activate
voice recognition.
2. The audio system mutes and the system plays a
prompt.
3. Clearly speak one of the commands described in
this section.
A voice recognition system
prompt can be interrupted
while it is playing by
pressing
gagain. Once voice recognition is
started, both the infotainment
display and instrument cluster
show the selections and visual
dialog content. These displays
can be turned on or off in the
Tutorial Mode under Settings
0
207.
There are three voice prompt
modes supported:
.Informative verbal prompts:
This type of prompt will
provide more information
regarding the supported
actions.
.Short prompts: This type of
prompt will provide simple
instructions about what can
be stated.
.Auto informative prompts:
This type of prompt plays
during the first few speech
sessions, then automatically
switches to the short
prompt after some
experience has been gained
through using the system. If a command is not spoken,
the voice recognition system
says a help prompt.
Prompts and Infotainment
Displays
While a voice recognition
session is active, there may be
corresponding options
showing on the displays.
A selection can be made by
manually touching the option,
or by speaking the number for
the option to select. Manual
interaction in the voice
recognition session is
permitted. Interaction during a
voice session may be
completed entirely using voice
commands while some manual
commands may expedite a
task. If a selection is made
using a manual control, the
voice recognition dialog will
progress in the same way as if
the selection were made using
a voice command. Once the
system completes the task,

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Infotainment System 199
.Review the controls and
operation of the
infotainment system.
.Pair mobile device(s) to the
vehicle. The system may not
work with all mobile devices.
See“Pairing” later in this
section.
Vehicles with a Bluetooth
system can use a
Bluetooth-capable mobile
device with a Hands-Free
Profile to make and receive
phone calls. The infotainment
system and voice recognition
are used to control the
system. The system can be
used while the ignition is on or
in accessory mode. The range
of the Bluetooth system can
be up to 9.1 m (30 ft). Not all
mobile devices support all
functions and not all mobile
devices work with the
Bluetooth system. Visit your
brand website for more
information about compatible
mobile devices. See Online
Account 0486.
Controls
Use the controls on the center
stack and the steering wheel
to operate the Bluetooth
system.
Steering Wheel Controls
g:Press to answer incoming
calls and start voice
recognition on your connected
Bluetooth mobile device.
i: Press to end a call, decline
a call, or cancel an operation.
Press to mute or unmute the
infotainment system when not
on a call.
Infotainment System
Controls
For information about how to
navigate the menu system
using the infotainment
controls, see Overview 0155.
Audio System
When using the Bluetooth
mobile device system, sound
comes through the vehicle's
front audio system speakers and overrides the audio
system. The volume level while
on a mobile device call can be
adjusted by pressing the
steering wheel controls or the
volume control on the center
stack. The adjusted volume
level remains in memory for
later calls. The volume cannot
be lowered beyond a certain
level.
Bluetooth (Pairing
and Using a Phone)
Pairing
A Bluetooth-enabled mobile
device must be paired to the
Bluetooth system and then
connected to the vehicle
before it can be used. See the
mobile device manufacturer's
user guide for Bluetooth
functions before pairing the
device.
Pairing Information
.If no mobile device has been
connected, the Phone main
page on the infotainment

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
208 Infotainment System
Wi-Fi Hotspot
Allows adjustment of different
Wi-Fi features.
Privacy
Allows adjustment of the
infotainment privacy settings.
Display
Allows adjustment of the
infotainment display.
Sounds
Allows adjustment of the
infotainment system sounds.
Voice
Allows adjustment of the
infotainment voice recognition
features.
Favorites
Allows adjustment of the
infotainment favorite settings.
Updates
If equipped, the vehicle can
download and install select
software updates over a
wireless connection. The
system will prompt for certainupdates to be downloaded
and installed. There is also an
option to check for updates
manually.
To manually check for
updates, touch Settings on
the Home Page and select the
System tab. Go to the Vehicle
Software section and touch
Updates. Follow the on-screen
prompts. The steps to check
for, download, and install
updates may vary by vehicle.
The vehicle can be used
normally during the software
download. Once the download
is complete, there may be a
prompt to accept the
installation of the update upon
the next ignition cycle or the
next time the vehicle is shifted
into P (Park). For most
updates, the vehicle will be
disabled and cannot be driven
during the installation. The
system will deliver messages
indicating success or error
during and after the download
and installation processes.
Downloading Over-the-Air
vehicle software updates
requires Internet connectivity,
which can be accessed
through the vehicle’s built-in
4G LTE connection,
if equipped and active.
If required, data plans are
provided by a third party.
Optionally, a secure Wi-Fi
hotspot such as a compatible
mobile device hotspot, home
hotspot, or public hotspot can
be used. Applicable data rates
may apply.
To connect the infotainment
system to a secured mobile
device hotspot, home hotspot,
or public hotspot, touch
Settings on the Home Page,
select the System tab,
followed by Wi-Fi Networks.
Select the appropriate Wi-Fi
network, and follow the
on-screen prompts. Download
speeds may vary.
On most compatible mobile
devices, activation of the Wi-Fi
hotspot is in the Settings

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
212 Infotainment System
.Change Teen Driver
settings.
.Change or clear the Teen
Driver PIN.
.Access or delete Report
Card data.
Set up/Add keys to activate
Teen Driver and assign
restrictions to the key:
Any vehicle key can be
registered, up to a maximum
of eight keys. Label the key to
tell it apart from the
other keys.
For a pushbutton start
system: 1. Start the vehicle.
2. For automatic transmissions, the vehicle
must be in P (Park). For
manual transmissions, the
vehicle must be stopped
with the parking brake set.
3. From the Settings menu, touch Vehicle and then
Teen Driver.
4. Enter the PIN. 5. Place the remote key you
wish to register in the
transmitter pocket. The
key does not need to be
the one that started the
vehicle. See Remote Key
Operation 09 for
transmitter pocket
location.
6. From the Teen Driver menu, touch Setup Keys or
Add/Remove Teen
Driver Keys.
.If the remote key has
not previously been
registered, the option to
add the key displays.
Touch Add and a
confirmation message
displays. Teen Driver
restrictions will be
applied whenever this
remote key is used to
operate the vehicle.
.If the remote key has
already been registered,
the option to remove
the key displays.
If Remove is touched,
the remote key is no longer registered.
A confirmation message
displays, and Teen
Driver restrictions will
not be applied if this
remote key is used to
operate the vehicle.
In vehicles with a pushbutton
start system, if a Teen Driver
and a non-Teen Driver key are
both present at start up, the
vehicle will recognize the
non-Teen Driver key to start
the vehicle. The Teen Driver
settings will not be active.
For a keyed ignition system: 1. Start the vehicle.
2. For automatic transmissions, the vehicle
must be in P (Park). For
manual transmissions, the
vehicle must be stopped
with the parking brake set.
3. From the Settings menu, touch Vehicle and then
Teen Driver.
4. Enter the PIN.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
232 Driving and Operating
Driving and
Operating
Driving Information
Driving for Better FuelEconomy . . . . . . . . . . . . . . . . . . . 234
Distracted Driving . . . . . . . . . 234
Defensive Driving . . . . . . . . . . 235
Impaired Driving . . . . . . . . . . . 235
Control of a Vehicle . . . . . . 235
Braking . . . . . . . . . . . . . . . . . . . . . . . 235
Steering . . . . . . . . . . . . . . . . . . . . . . 236
Off-Road Recovery . . . . . . . 237
Loss of Control . . . . . . . . . . . . 237
Track Events and Competitive Driving
(V-Series and V-Series
Blackwing) . . . . . . . . . . . . . . . . . 238
Driving on Wet Roads . . . . 251
Hill and Mountain Roads . . . . . . . . . . . . . . . . . . . . . . . 252
Winter Driving . . . . . . . . . . . . . . 253
If the Vehicle Is Stuck . . . . 255
Vehicle Load Limits . . . . . . . 255
Starting and Operating
New Vehicle Break-In . . . . 259
Composite Materials . . . . . 260
Ignition Positions . . . . . . . . . . . 261 Starting the Engine . . . . . . . 263
Stop/Start System . . . . . . . . 264
Engine Heater . . . . . . . . . . . . . . 266
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . 267
Shifting Into Park (Mechanical Shifter) . . . . . 267
Shifting Into Park (Electronic Shifter) . . . . . . 268
Shifting out of Park (Mechanical Shifter) . . . . . 269
Shifting out of Park (Electronic Shifter) . . . . . . 270
Parking (Manual Transmission) . . . . . . . . . . . . . 270
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 271
Extended Parking . . . . . . . . . . 271
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . 271
Running the Vehicle While Parked . . . . . . . . . . . . . . 272
Automatic Transmission
Automatic Transmission(Mechanical Shifter) . . . . . 272
Automatic Transmission (Electronic Shifter) . . . . . . 275
Manual Mode (Mechanical Shifter) . . . . . 280 Manual Mode (Electronic
Shifter) . . . . . . . . . . . . . . . . . . . . . . 281
Manual Transmission
Manual Transmission . . . . . 283
Active Rev Match . . . . . . . . . 285
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . 286
Brakes
Electric Brake Boost . . . . . 286
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . 286
Electric Parking Brake . . . 287
Brake Assist . . . . . . . . . . . . . . . . 289
Hill Start Assist (HSA) . . . . 289
Automatic Vehicle Hold (AVH) . . . . . . . . . . . . . . . . . 289
Ride Control Systems
Traction Control/Electronic Stability
Control . . . . . . . . . . . . . . . . . . . . . . 290
Driver Mode Control . . . . . . 292
Competitive Driving Mode . . . . . . . . . . . . . . 298
Limited-Slip Differential . . . . . . . . . . . . . . . . . 301

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 253
.Shift to a lower gear when
going down steep or long
hills.
{Warning
Using the brakes to slow the
vehicle on a long downhill
slope can cause brake
overheating, can reduce
brake performance, and
could result in a loss of
braking. Shift the
transmission to a lower gear
to let the engine assist the
brakes on a steep downhill
slope.
{Warning
Coasting downhill in
N (Neutral) or with the
ignition off is dangerous.
This can cause overheating
of the brakes and loss of
steering assist. Always have
the engine running and the
vehicle in gear.
.Drive at speeds that keep
the vehicle in its own lane.
Do not swing wide or cross
the center line.
.Be alert on top of hills;
something could be in your
lane (e.g., stalled car, crash).
.Pay attention to special road
signs (e.g., falling rocks area,
winding roads, long grades,
passing or no-passing zones)
and take appropriate action.
Winter Driving
Driving on Snow or IceCaution
To avoid damage to the
wheels and brake
components, always clear
snow and ice from inside the
wheels and underneath the
vehicle before driving.
Snow or ice between the tires
and the road creates less
traction or grip, so drive
carefully. Wet ice can occur at
about 0 °C (32 °F) when freezing rain begins to fall.
Avoid driving on wet ice or in
freezing rain until roads can be
treated.
For Slippery Road Driving:
.Accelerate gently.
Accelerating too quickly
causes the wheels to spin
and makes the surface under
the tires slick.
.Turn on Traction Control.
See Traction Control/
Electronic Stability Control
0
290.
.The Antilock Brake System
(ABS) improves vehicle
stability during hard stops,
but the brakes should be
applied sooner than when on
dry pavement. See Antilock
Brake System (ABS) 0286.
.Allow greater following
distance and watch for
slippery spots. Icy patches
can occur on otherwise clear
roads in shaded areas. The
surface of a curve or an
overpass can remain icy
when the surrounding roads