2020 CADILLAC CT4 sunroof

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
KEYS, DOORS, AND WINDOWS 7
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . . . . . . . . . 14
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 16
Power Door Locks . . . . . . . . . . . . . . . . . 18
Delayed Locking . . . . . . . . . . . . . . . . . . . 18
Automatic Door Locks . . . . . . . . . . . . 19
Lockout Protection . . . . . . . . . . . . . . . . 19
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . 19
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . 22
Vehicle Alarm System . . . . . . . . . . . . . 22
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . 24
Immobilizer Operation . . . . . . . . . . . . 24
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . 25
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . 26 Folding Mirrors . . . . . . . . . . . . . . . . . . . . 26
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . 27
Automatic Dimming Mirror . . . . . . . 27
Reverse Tilt Mirrors . . . . . . . . . . . . . . . 27
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . 28
Manual Rearview Mirror . . . . . . . . . . 28
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Power Windows . . . . . . . . . . . . . . . . . . . . 29
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with a
remote key is dangerous and
children or others could be
seriously injured or killed. They
could operate the power windows
or other controls or make the
vehicle move. The windows will
function with the remote key in the
vehicle, and children or others
could be caught in the path of a
closing window. Do not leave
children in a vehicle with a
remote key.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
KEYS, DOORS, AND WINDOWS 29
pulsing sound when either rear
window is down and the front
windows are up. To reduce the sound,
open either a front window or the
sunroof, if equipped.
Power Windows
{Warning
Children could be seriously injured
or killed if caught in the path of a
closing window. Never leave the
remote key in a vehicle with
children. When there are children in
the rear seat, use the window
lockout switch to prevent operation
of the windows. SeeKeys07.
Power windows work when the
ignition is on, in ACC/ACCESSORY,
or when Retained Accessory Power
(RAP) is active. See Retained Accessory
Power (RAP) 0163.
Using the window switch, press to
open or pull to close the window.
The windows may be temporarily
disabled if they are used repeatedly
within a short time.
Window Lockout
With Folding Mirrors, Without Folding Mirrors Similar
This feature stops the rear passenger
window switches from working.
. Press
{2to engage the rear
window lockout feature. The
indicator light is on when engaged.
The rear door safety locks will also
engage.
. Press
{2again to disengage.
The rear door safety locks will also
disengage.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
KEYS, DOORS, AND WINDOWS 31
Sun Visors
Pull the sun visor down to block glare.
Detach the sun visor from the center
mount to pivot to the side window
and, if equipped, extend along the rod.
Roof
Sunroof
If equipped, the ignition must be on
or in ACC/ACCESSORY, or Retained
Accessory Power (RAP) must be active
to operate the sunroof. SeeIgnition
Positions 0158 and
Retained Accessory Power (RAP) 0163.
While operating in express, movement
can be stopped by pressing the switch
again.
The sunroof cannot be opened or
closed if the vehicle has an electrical
failure.
1. SLIDE Switch
2. TILT Switch
Sunroof Operation:
. Press and release
D(1) to
express-open to the fully open
position.
. Pull and release
D(1) to
express-close.
. Press or pull and hold
D(1) to
open or close without express.
Release
D(1) at the desired
position.
Sunroof Vent Operation:
. Press and release
E(2) to vent
the sunroof.
. Pull and release
E(2) to close the
sunroof vent.
This sunroof also has a sunshade,
which must be opened and closed
manually.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
32 KEYS, DOORS, AND WINDOWS
Automatic Reversal System
The sunroof, if equipped, has an
automatic reversal system that is only
active when the sunroof is operated in
express-close mode.
If an object is in the path while
express-closing, the reversal system
will detect an object, stop, and open
the sunroof slightly.
If this condition occurs, attempt to
remove the object, then pull and
release the switch to express close.
If the reversal occurs multiple times,
the DIC message OPEN THEN CLOSE
SUNROOF will display, and express is
disabled. To operate sunroof while
express is disabled, the switch must
be either pressed or pulled and held.
Dirt and debris may collect on the
sunroof seal or in the track. This
could cause an issue with sunroof
operation or noise. It could also plug
the water drainage system.
Periodically open the sunroof and
remove any obstacles or loose debris.
Wipe the sunroof seal and roof sealing
area using a clean cloth, mild soap,
and water. Do not remove grease from
the sunroof.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
DRIVING AND OPERATING 163
Warning (Continued)
vehicle. Possible heater cord
and thermostat damage could
occur.
. While in use, do not let the
heater cord touch vehicle
parts or sharp edges. Never
close the hood on the
heater cord.
. Before starting the vehicle,
unplug the cord, reattach the
cover to the plug, and
securely fasten the cord. Keep
the cord away from any
moving parts.
4. Before starting the engine, be sure to unplug and store the cord
as it was before to keep it away
from moving engine parts. If you
do not, it could be damaged.
Contact your dealer for information
on how long to use the heater in your
particular area.
Retained Accessory
Power (RAP)
When the ignition is turned from on
to off, the following features (if
equipped) will continue to function
for up to 10 minutes, or until the
driver door is opened. These features
will also work when the ignition is in
RUN or ACC/ACCESSORY:
. Infotainment System
. Power Windows (during RAP this
functionality will be lost when any
door is opened)
. Sunroof (during RAP this
functionality will be lost when any
door is opened)
. Auxiliary Power Outlet
. Audio System
. OnStar System
Shifting Into Park
(Electronic Shifter)
To shift into P (Park): 1. Hold the brake pedal down and
set the parking brake. See Electric
Parking Brake 0179.
2. Press the button on top of the shift lever to shift into P (Park).
See Automatic Transmission
(Mechanical Shifter) 0169 or
Automatic Transmission
(Electronic shifter) 0171.
3. The P indicator on the shift lever will turn red when the vehicle is
in P (Park).
Leaving the Vehicle with the
Engine Running
{Warning
It can be dangerous to leave the
vehicle with the engine running.
It could overheat and catch fire.
It is dangerous to get out of the
vehicle if the vehicle is not in
P (Park) with the parking brake set.
The vehicle can roll.
(Continued)

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
266 VEHICLE CARE
FusesUsage
2 Engine control module
3 Driver heated seat
4 Fuel tank zone module
5 –
6 –
7 –
8 –
9 –
10 Motor seat belt passenger
11 Canister vent solenoid
12 Sunroof
13 –
14 –
15 Passenger heated seat
16 –
17 Electronic suspension control Fuses
Usage
18 –
19 Motor seat belt driver
20 Rear defog
21 DC to DC transformer 2
22 Driver power window door lock switch
23 External object calculating module/
Front camera module
24 Passenger window door lock switch
25 –
26 Trailer
27 Rear drive control module
28 –
29 –
30 –
31 DC to DC transformer 1 Fuses
Usage
32 Transfer case electronic control
33 Central gateway module/Side blind
zone alert
34 Video processing module
35 Hands free closure release
36 Exterior lighting module 2
37 Passenger memory seat module
38 Trailer 2
39 Right front/Right rear window
40 –
41 –
42 Amplifier
43 Park assist module
44 Driver memory seat module
45 OnStar

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
SERVICE AND MAINTENANCE 305
.Lubricate body components. See
Exterior Care 0293.
. Check starter switch. See Starter
Switch Check 0255.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check 0256. .
Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
. Visually inspect gas strut for signs
of wear, cracks, or other damage.
Check the hold open ability of the
strut. If the hold open is low,
service the gas strut. See Gas
Strut(s) 0257.
. Inspect sunroof track and seal,
if equipped. See Sunroof031.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
INDEX 351
Power (cont'd)Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Pregnancy, Using Seat Belts . . . . . . . . . 50
Privacy Vehicle Data Recording . . . . . . . . . . 332
Program Courtesy Transportation . . . . . . . . . 327
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . 222
Proposition 65 Warning,
California . . . . . . . . . . . . . . .234, 254, 288, Back Cover
Publication Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . 330
R
Radio Frequency Statement . . . . . . . . 330
Reading Lamps . . . . . . . . . . . . . . . . . . . . . 130
Rear Pedestrian Alert . . . . . . . . . . . . . . . 209
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Rear Vision Camera (RVC) . . . . . . . . . 204
Rearview Mirrors . . . . . . . . . . . . . . . . . . . . 28Automatic Dimming . . . . . . . . . . . . . . . . 28
Reclining Seatbacks . . . . . . . . . . . . . . . . . 36
Recommended Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . 313 Records
Maintenance . . . . . . . . . . . . . . . . . . . . . . 316
Recreational Vehicle Towing . . . . . . . 292
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . . . . . . . . . . . 14
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Maintenance . . . . . . . . . . . . . . . . . . . . . . 314
Replacing Airbag System . . . . . . . . . . . . 63
Replacing LATCH System Parts after a Crash . . . . . . . . . . . . . . . . . . . . . . . . 76
Replacing Seat Belt System Parts after a Crash . . . . . . . . . . . . . . . . . 51
Reporting Safety Defects Canadian Government . . . . . . . . . . . . 331
General Motors . . . . . . . . . . . . . . . . . . . 332
U.S. Government . . . . . . . . . . . . . . . . . . 331
Restraints
Where to Put . . . . . . . . . . . . . . . . . . . . . . . . 69
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . . . . . . . . 163
Reverse Tilt Mirrors . . . . . . . . . . . . . . . . . 27
Ride Control Systems
Enhanced TractionSystem (ETS) . . . . . . . . . . . . . . . . . . . . 191 Roads
Driving, Wet . . . . . . . . . . . . . . . . . . . . . . . 151
Roadside Service . . . . . . . . . . . . . . . . . . . . 325
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Rotation, Tires . . . . . . . . . . . . . . . . . . . . . . 281
Routing, Engine Drive Belt . . . . . . . . . 320
Run-Flat Tires . . . . . . . . . . . . . . . . . . . . . . . 269
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
S
Safety Defects ReportingCanadian Government . . . . . . . . . . . . 331
General Motors . . . . . . . . . . . . . . . . . . . 332
U.S. Government . . . . . . . . . . . . . . . . . . 331
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Safety System Check . . . . . . . . . . . . . . . . 50
Scheduling Appointments . . . . . . . . . . 326
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . 47
Reminders . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Replacing after a Crash . . . . . . . . . . . . . 51
Use During Pregnancy . . . . . . . . . . . . . . 50