2023 CADILLAC CT4 light

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Lighting 147
the AUTO or2position to
reactivate the IntelliBeam
system. The instrument
cluster light will come on to
indicate the IntelliBeam
system is reactivated.
The high beams may not turn
off automatically if the system
cannot detect another
vehicle's lamps because of any
of the following:
.The other vehicle's lamps
are missing, damaged,
obstructed from view,
or otherwise undetected.
.The other vehicle's lamps
are covered with dirt, snow,
and/or road spray.
.The other vehicle's lamps
cannot be detected due to
dense exhaust, smoke, fog,
snow, road spray, mist,
or other airborne
obstructions.
.The vehicle's windshield is
dirty, cracked, or obstructed
by something that blocks the
view of the light sensor.
.The vehicle is loaded such
that the front end points
upward, causing the light
sensor to aim high and not
detect headlamps and
taillamps.
.The vehicle is being driven
on winding or hilly roads.
The automatic high-beam
headlamps may need to be
disabled if any of the above
conditions exist.
Exterior Lamps Off
Reminder
A warning chime sounds if the
driver door is opened while
the ignition is off and the
exterior lamps are on.
Headlamp High/
Low-Beam Changer
3: Push the turn signal lever
away from you and release, to
turn the high beams on. To
return to low beams, push the
lever again or pull it toward
you and release.
This indicator light turns on in
the instrument cluster when
the high-beam headlamps
are on.
Flash-to-Pass
To flash the high beams, pull
the turn signal lever toward
you, and release.
Daytime Running
Lamps (DRL)
DRL can make it easier for
others to see the front of your
vehicle during the day. Fully
functional DRL are required on
all vehicles first sold in
Canada.

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 149
The transition time for the
lamps coming on varies based
on wiper speed. When the
wipers are not operating,
these lamps turn off. Move the
exterior lamp control to
Oor
;to disable this feature.
Hazard Warning
Flashers
|:Press this button to make
the front and rear turn signal
lamps flash on and off.
Release the button for at least
one second and press again to
turn the flashers off. The hazard warning flashers
turn on automatically if the
airbags deploy.
Turn and
Lane-Change Signals
Move the lever all the way up
or down to signal a turn.
An arrow on the instrument
cluster flashes in the direction
of the turn or lane change.
Raise or lower the lever until
the arrow starts to flash to
signal a lane change. Hold it
there until the lane change is
completed. If the lever is
briefly pressed and released,
the turn signal flashes three
times.
The turn and lane-change
signal can be turned off
manually by moving the lever
back to its original position.
If after signaling a turn or lane
change, the arrow flashes
rapidly or does not come on, a
signal function may be
inoperative. This vehicle may
be equipped with LED lighting.
For replacement of any LED
lighting, contact your dealer.
Cornering Lamps
If equipped with cornering
lamps, they automatically
come on when all of the
following occur:
.The low-beam headlamps
are on.
.The turn signals are
activated or the steering
wheel is at a turning angle.
.The vehicle speed is below
40 km/h (25 mph).

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
150 Lighting
Interior Lighting
Instrument Panel
Illumination Control
This feature adjusts the
brightness of all illuminated
controls.
D:Move the thumbwheel up
or down to brighten or dim the
lights.
The thumbwheel is functional
at night, or when the
headlamps or parking lamps
are ON.
Courtesy Lamps
The courtesy lamps come on
when any door is opened,
Kon
the remote key is pressed,
or when the vehicle is turned
off. See Dome Lamps 0150.
Dome Lamps
The dome lamp controls are in
the overhead console.
The dome lamps come on
when any door is opened,
Kon
the remote key is pressed,
or when the vehicle is
turned off. To operate, press the
following buttons:
jOFF :
Press to turn off the
dome lamps. An indicator light
on the button will turn on
when the dome lamp override
is activated. Press
jOFF
again to deactivate this
feature and the indicator light
will turn off.
+ON/OFF : Press to turn the
dome lamps on or off manually.
Reading Lamps
There are front and rear
reading lamps on the
overhead console and over
the rear passenger doors.
These lamps will come on
when any door is opened,
Kon
the remote key is pressed,
or when the vehicle is
turned off.
Front Reading Lamps
The front reading lamps are
on the overhead console.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Lighting 151
Press the lamp lenses to
manually turn on or off the
front reading lamps.
Rear Reading Lamps
The rear reading lamps are
over the rear passenger
doors.
Press the lamp lenses to
manually turn on or off the
rear reading lamps.
Lighting Features
Entry Lighting
The interior lamps turn on
when pressing
Kon the
remote key or opening any
doors, and the dome lamp
control is not in the
jOFF
position.
Some exterior lamps also turn
on when pressing
Kon the
remote key or opening any
doors. Low-Beam lamps will
only turn on briefly at night,
or in areas with limited lighting.
All lamps will gradually fade
out after about 30 seconds.
Entry lighting can be disabled
manually by closing all doors,
pressing
Qon the remote key,
or starting the vehicle. This feature can be changed.
On the infotainment home
page, select the Setting icon >
Vehicle > Vehicle Locator
Lights.
Approach Detection
If equipped, the entry lighting
feature will automatically turn
on when the remote key is
detected within approximately
2 m (6 ft) of the vehicle.
If the vehicle has remained
parked for an extended period
of time with no remote key use
or keyless access operation,
approach detection will be
disabled. To reactivate, press
any button on the remote key
or open and close all vehicle
doors to re-enable the entry
lighting feature on approach.
Exit Lighting
Some exterior lamps and
interior lamps turn on when
the driver door is opened after
the vehicle is turned off.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
152 Lighting
The exterior and interior lamps
remain on for a set amount of
time, then automatically
turn off.
The interior lights turn on
when the vehicle is turned off.
The exterior lamps turn off
immediately by turning the
exterior lamp control off.
This feature can be changed.
On the infotainment home
screen, select the Settings
icon
TVehicleTExit Lighting.
Battery Load
Management
The vehicle has Electric Power
Management (EPM), which
estimates the battery's
temperature and state of
charge. It then adjusts the
voltage for best performance
and extended life of the
battery.
When the battery's state of
charge is low, the voltage is
raised slightly to quickly bring
the charge back up. When thestate of charge is high, the
voltage is lowered slightly to
prevent overcharging. If the
vehicle has a voltmeter gauge
or a voltage display on the
Driver Information Center
(DIC), you may see the voltage
move up or down. This is
normal. If there is a problem,
an alert will be displayed.
The battery can be discharged
at idle if the electrical loads
are very high. This is true for
all vehicles. This is because
the generator (alternator) may
not be spinning fast enough at
idle to produce all the power
that is needed for very high
electrical loads.
A high electrical load occurs
when several of the following
are on, such as: headlamps,
high beams, fog lamps, rear
window defogger, climate
control fan at high speed,
heated seats, engine cooling
fans, and loads plugged into
accessory power outlets.
EPM works to prevent
excessive discharge of the
battery. It does this by
balancing the generator's
output and the vehicle's
electrical needs. It can
increase engine idle speed to
generate more power,
whenever needed. It can
temporarily reduce the power
demands of some accessories.
Normally, these actions occur
in steps or levels, without
being noticeable. In rare cases
at the highest levels of
corrective action, this action
may be noticeable to the
driver. If so, a DIC message
might be displayed. If a battery
message is displayed, it is
recommended that the driver
reduce the electrical loads as
much as possible. See Driver
Information Center (DIC) (Base
Level)
0129 or
Driver Information Center
(DIC) (Uplevel) 0132.

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
156 Infotainment System
1.O(Power and
Mute) Knob
.Press to turn the
power on.
.Press and hold to
display the power off
screen or the option to
display the power off
screen.
.Press to mute/unmute
the system when on.
.Turn to decrease or
increase the volume.
2.VKnob
.Turn to highlight a
feature. Press to
activate the
highlighted feature.
3.{(Home Page)
.Press to go to the
Home Page. See
“Home Page” later in
this section.
Press to exit Android
Auto or Apple CarPlay. To enter back into
Android Auto or Apple
CarPlay, press and
hold. See Apple
CarPlay and Android
Auto
0204.
Infotainment Controls on
the Console with
Navigation Shown, Radio
without Navigation Similar
1.e(Radio/AUX)
.Press to open the
“Now Playing” screen.
2.7(Seek)
.Radio: Press and
release to go to the
previous station or
channel. Press and
hold to fast seek the
next strongest
previous station or
channel. See AM-FM
Radio0162.
.USB/Bluetooth: Press
to seek to the
beginning of the
current or previous
track. Press and hold
to quickly reverse
through a track.
Release to return to
playing speed. See
USB Port 0166 or
Bluetooth Audio 0169.
3.n(Power/
Volume) Knob
.Press to turn the
power on.
.Press and hold when
the system is on to
turn the power off and
display the time.