2020 CADILLAC CT4 light

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Keys, Doors, and Windows . . . . . . . . . . 7
Seats and Restraints . . . . . . . . . . . . . . . 33
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Instruments and Controls . . . . . . . . . . 85
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Infotainment System . . . . . . . . . . . . . 133
Climate Controls . . . . . . . . . . . . . . . . . . 134
Driving and Operating . . . . . . . . . . . . 141
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 233
Service and Maintenance . . . . . . . . . 302
Technical Data . . . . . . . . . . . . . . . . . . . . 317
Customer Information . . . . . . . . . . . . 321
Reporting Safety Defects . . . . . . . . . 331
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Connected Services . . . . . . . . . . . . . . . 341
Index . . . . . . . . . . . . . . . . . . . . . . . . 344

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
INTRODUCTION 3
Danger, Warning, and
Caution
Warning messages found on vehicle
labels and in this manual describe
hazards and what to do to avoid or
reduce them.
{Danger
Danger indicates a hazard with a
high level of risk which will result
in serious injury or death.
{Warning
Warning indicates a hazard that
could result in injury or death.
Caution
Caution indicates a hazard that
could result in property or vehicle
damage.
A circle with a slash through it is a
safety symbol which means“Do not,”
“Do not do this,” or“Do not let this
happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with
the text describing the operation or
information relating to a specific
component, control, message, gauge,
or indicator.
M: Shown when the owner’s manual
has additional instructions or
information.
*: Shown when the service manual
has additional instructions or
information.
0: Shown when there is more
information on another page —
“see page.”
Vehicle Symbol Chart
Here are some additional symbols that
may be found on the vehicle and what
they mean. See the features in this
manual for information.
u: Air Conditioning System
G:Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
$:Brake System Warning Light
9:Dispose of Used Components
Properly
P: Do Not Apply High Pressure
Water

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
6 INTRODUCTION
1.Air Vents 0139.
2. Exterior Lamp Controls 0125.
Turn Signal Lever. See Turn and
Lane-Change Signals 0129.
3. Tap Shift Controls (If Equipped). See Manual Mode (Electronic
Shifter) 0177 or
Manual Mode (Mechanical Shifter)
0 176.
4. Cruise Control 0192.
Adaptive Cruise Control 0194 (If
Equipped).
Forward Collision Alert (FCA)
System 0211 (If Equipped).
Heated Steering Wheel 086 (If
Equipped).
5. Instrument Cluster 093.
Driver Information Center (DIC)
Display. See Driver Information
Center (DIC) 0109.
6. Steering Wheel Controls 086 (If
Equipped). See infotainment
manual.
7. Windshield Wiper/Washer 086.
8. Infotainment 0133. 9. Light Sensor. See
Automatic
Headlamp System 0128.
10. Hazard Warning Flashers 0128.
11. Dual Automatic Climate Control
System 0134.
12. Heated and Ventilated Front Seats
040 (If Equipped).
13. Lane Keep Assist (LKA) 0219 (If
Equipped).
14. Traction Control/Electronic
Stability Control 0182.
Stop/Start Disable Switch. See
Stop/Start System 0161.
Automatic Vehicle Hold (AVH)
0 181.
MODE Button or
«/ªButton
(V-Series Only). See Driver Mode
Control 0184.
15. Wireless Charging Pad (If Equipped) (Out of View). See
Wireless Charging 090.
16. Park Assist Button. See Assistance Systems for Parking or
Backing 0204. 17. Shift Lever. See
Automatic
Transmission (Mechanical Shifter)
0 169 or
Automatic Transmission
(Electronic shifter) 0171.
18. ENGINE START/STOP Button. SeeIgnition Positions 0158.
19. Horn 086.
20. Steering Wheel Adjustment 086.
21. Head-Up Display (HUD) 0111 (If
Equipped).
22. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp (Check Engine
Light) 0100.
23. Instrument Panel Illumination
Control 0129.
24. Hood Release (Out of View). See Hood 0236.
25. Electric Parking Brake 0179 (If
Equipped).

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
KEYS, DOORS, AND WINDOWS 9
Q:Press to lock all doors and the fuel
door, if equipped. The turn signal
indicators may flash and/or the horn
may sound on the second press to
indicate locking. See Vehicle
Personalization 0116.
Pressing
Qmay also arm the alarm
system. See Vehicle Alarm System 022.
If equipped with remote folding
mirrors, pressing
Qon the remote key
may fold the mirrors. See Folding
Mirrors 026.
K:Press to unlock the driver door
and the fuel door, if equipped. Press
again within five seconds to unlock all doors. The remote key can be
programmed to unlock all doors on
the first button press. See
Vehicle
Personalization 0116. When remotely
unlocking the vehicle at night, the
headlamps and back-up lamps may
come on for about 30 seconds to light
your approach to the vehicle. The turn
signal indicators may flash to indicate
unlocking.
Pressing
Kwill disarm the alarm
system. See Vehicle Alarm System 022.
Press and hold
Kfor about
three seconds to remotely open the
windows, if enabled. See Vehicle
Personalization 0116.
If equipped with remote folding
mirror, pressing
Kon the remote key
may unfold the mirrors. See Folding
Mirrors 026.
S:PressStwice to start the engine
from outside the vehicle using the
remote key. See Remote Vehicle Start
0 14.
7:Press and release one time to
initiate vehicle locator. The exterior
lamps flash and the horn chirps three times. Press and hold
7for more than
three seconds to sound the panic
alarm. The horn sounds and the turn
signal lamps flash for 30 seconds,
or until
7is pressed again or the
vehicle is started.
X: Press twice to release the trunk.
Keyless Access Operation
The Keyless Access system lets you
lock and unlock the doors and access
the trunk without removing the
remote key from your pocket, purse,
briefcase, etc. The remote key must be
within 1 m (3 ft) of the trunk or door
being opened. The button is on the
outside door handle.
The Keyless Access system can be
programmed to be turned off or to
unlock all doors on the first door
handle press from the driver door.
Keyless unlocking can also be turned
off. See Vehicle Personalization 0116.
If equipped with memory seats,
remote keys 1 and 2 are linked to
seating positions of memory 1 or 2.
See Memory Seats 037.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
12 KEYS, DOORS, AND WINDOWS
Programming Remote Keys to
the Vehicle
Only remote keys programmed to the
vehicle will work. If a remote key is
lost or stolen, a replacement can be
purchased and programmed through
your dealer. The vehicle can be
reprogrammed so that lost or stolen
remote keys no longer work. Each
vehicle can have up to eight remote
keys matched to it.
Programming with Recognized
Remote Keys
A new key can be programmed to the
vehicle when there are two
recognized keys.
To program, the vehicle must be in
RUN and both the recognized and new
remote keys must be with you.1. Place the two recognized remote keys on the passenger seat.
2. Scroll to the DIC menu to "Remote Key Relearn" and select.
The DIC displays READY FOR
REMOTE #3, 4, 5, etc.
3. Place the new remote key intothe rear cupholder.
4. Press ENGINE START/STOP. When the remote key is learned
the DIC display will show that it
is ready to program the next
remote key.
5. Remove the remote key from the rear cupholder and press
KorQ
on the remote key.
To program additional remote
keys, repeat Steps 4–5. When all additional remote keys
are programmed, press and hold
ENGINE START/STOP for
approximately 12 seconds to exit
programming mode.
Programming without Recognized
Remote Keys
If two currently recognized remote
keys are not available, see your dealer
to program new remote keys.
Starting the Vehicle with a Low
Remote Key Battery
For improved vehicle security, the
remote key is equipped with a motion
sensor. When starting the vehicle,
if the remote key has been idle for a
while, the DIC may display KEY IN
SLEEP MODE, MOVE KEY, THEN
START. Move the remote key slightly
and try starting the vehicle. When
starting the vehicle, if the remote key
battery is depleted or there is signal
interference, the DIC may display NO
KEY FOUND, REPLACE BATTERY IN
KEY or NO REMOTE KEY WAS
DETECTED PLACE KEY IN KEY

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
KEYS, DOORS, AND WINDOWS 15
cold ambient conditions. The rear
defog indicator light does not come on
during remote start.
If equipped, the heated and ventilated
front seats may also come on when
the vehicle personalization setting is
enabled. SeeHeated and Ventilated
Front Seats 040.
If equipped with a remote start heated
steering wheel, it may come on during
a remote start. See Heated Steering
Wheel 086.
Laws in some local communities may
restrict the use of remote starters. For
example, some laws may require a
person using remote start to have the
vehicle in view. Check local
regulations for any requirements.
If your vehicle is low on fuel, do not
use the remote start feature. The
vehicle may run out of fuel.
The remote key range may be shorter
while the vehicle is running.
Other conditions can affect the
performance of the remote key. See
Remote Keyless Entry (RKE) System
0 8. You are allowed multiple starts
totaling 30 minutes of engine run
time. The maximum run time of a
single start is 15 minutes, and it will
shut off automatically. You could do
three 10 minute starts if you manually
shut off after 10 minutes. The last
10 minute start would shut off
automatically as your total
30 minutes will have been used.
Starting the Engine Using Remote
Start
1. Press
Stwice on the remote
key. The turn signal lamps will
flash. The lamps flash to confirm
the request to remote start the
vehicle has been received. During
the remote start, the doors will
be locked and the parking lamps
will remain on as long as the
engine is running.
2. The engine will shut off after 15 minutes or after the
remainder of the 30 minute total
running time is used, unless you
stop the remote start before
engine running has completed or
the vehicle is turned on. 3. After entering the vehicle during
a remote start, press the brake
and ENGINE START/STOP with
the remote key in the vehicle to
drive the vehicle.
Additional Engine Run Time
Remote start can be used for up to
30 minutes of total engine run time.
After two remote starts of 15 minutes,
or multiple shorter time starts
totaling 30 minutes have been used,
the vehicle must be started normally
before the remote start can be used
again.
Canceling a Remote Start
To cancel a remote start, do any of
the following:
. Press
S. The parking lamps will
turn off.
. Turn on the hazard warning
flashers.
. Turn the vehicle on and then
back off.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
18 KEYS, DOORS, AND WINDOWS
3. Slide the cap forward and pressthe forward edge to install the
cap in place.
4. Release the door handle. 5. Check that the cap is secure.
Free-Turning Locks
The door key lock cylinder turns freely
when either the wrong mechanical key
is used, or the correct mechanical key
is not fully inserted. The free-turning
door lock feature prevents the lock
from being forced open. To reset the
lock, turn it to the vertical position
with the correct mechanical key fully
inserted. Remove the mechanical key
and insert it again. If this does not
reset the lock, turn the mechanical
key halfway around in the cylinder
and repeat the reset procedure.
Power Door Locks
Q: Press to lock the doors. The
indicator light in the switch will
illuminate when locked.
K: Press to unlock the doors.
Delayed Locking
This feature delays the actual locking
of the doors until five seconds after all
doors are closed.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
20 KEYS, DOORS, AND WINDOWS
Without Folding Mirrors
The rear door safety locks prevent
passengers from opening the rear
doors from inside the vehicle.
Press
{ vto activate the safety locks
on the rear doors. The indicator light
in the switch will illuminate when
activated.
The rear door power windows are also
disabled. See Power Windows 029.
Press
{ vagain to deactivate the
safety locks.
If an inside rear door handle is being
pulled at the same time the safety
lock is deactivated, only that door will remain locked and the indicator light
may flash. Release the handle, then
press the safety lock twice to
deactivate the safety locks.
Doors
Trunk
{Warning
Exhaust gases can enter the vehicle
if it is driven with the liftgate or
trunk/hatch open, or with any
objects that pass through the seal
between the body and the trunk/
hatch or liftgate. Engine exhaust
contains carbon monoxide (CO)
which cannot be seen or smelled.
It can cause unconsciousness and
even death.
If the vehicle must be driven with
the liftgate or trunk/hatch open:
. Close all of the windows.
. Fully open the air outlets on
or under the instrument
panel.
. Adjust the climate control
system to a setting that
brings in only outside air and
(Continued)