roof CADILLAC CT4 2020 User Guide

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
INSTRUMENTS AND CONTROLS 87
With the ignition on or in ACC/
ACCESSORY, move the windshield
wiper lever to select the wiper speed.
HI :Use for fast wipes.
LO : Use for slow wipes.
INT : Use this setting for intermittent
wipes or for Rainsense wipes, when
Rainsense is enabled. For intermittent
wipes, move the lever up to INT, then
turn the
Oband up for more
frequent wipes or down for less
frequent wipes. If Rainsense is
enabled, see “Rainsense”later in this
section.
If the windshield wipers are in use
while driving, the exterior lamps come
on automatically if the exterior lamp
control is in AUTO. The transition
time for the lamps coming on varies based on wiper speed. See
“Lights On
with Wipers ”under Automatic
Headlamp System 0128.
OFF : Use to turn the wipers off.
1X : For a single wipe, briefly move
the wiper lever down. For several
wipes, hold the wiper lever down.
Clear snow and ice from the wiper
blades and windshield before using
them. If frozen to the windshield,
carefully loosen or thaw them.
Damaged blades should be replaced.
See Wiper Blade Replacement 0256.
Heavy snow or ice can overload the
wiper motor.{Warning
In freezing weather, do not use the
washer until the windshield is
warmed. Otherwise the washer fluid
can form ice on the windshield,
blocking your vision.
{Warning
Before driving the vehicle, always
clear snow and ice from the hood,
windshield, roof, and rear of the
vehicle, including all lamps and
windows. Reduced visibility from
snow and ice buildup could lead to
a crash.
Wiper Parking
If the ignition is turned off while the
wipers are on LO, HI, or INT with
Rainsense disabled, they will
immediately stop.
If the windshield wiper lever is then
moved to OFF before the driver door is
opened or within 10 minutes, the
wipers will restart and move to the
base of the windshield.
If the ignition is turned off while the
wipers are performing wipes due to
windshield washing or Rainsense, the
wipers continue to run until they
reach the base of the windshield.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
162 DRIVING AND OPERATING
The automatic engine Stop/Start
feature can be disabled and enabled
by pressing the switch with the
h
symbol. Auto Stop is enabled each
time you start the vehicle.
When
his illuminated, the system is
enabled.
Engine Heater
Vehicles with the engine heater can
use this option in cold weather
conditions at or below −18 °C (0 °F) for
easier starting and better fuel
economy during engine warm-up. Plug
in the engine heater at least four
hours before starting your vehicle. An
internal thermostat in the plug-end of
the cord may exist which will prevent
engine heater operation at
temperatures above −18 °C (0 °F).
The engine heater cord requires the
front license plate mounting bracket
to be installed. See your dealer for
more information.
To Use the Engine Heater
1. Turn off the engine. 2. Open the hood and unwrap the
electrical cord. The cord is
clipped to the diagonal brace on
the passenger side of the engine
compartment.
Check the heater cord for
damage. If it is damaged, do not
use it. See your dealer for a
replacement. Inspect the cord for
damage yearly.
3. Plug it into a normal, grounded 110-volt AC outlet.
{Warning
Improper use of the heater cord or
an extension cord can damage the
cord and may result in overheating
and fire.
. Plug the cord into a
three-prong electrical utility
receptacle that is protected by
a ground fault detection
(Continued)
Warning (Continued)
function. An ungrounded
outlet could cause an electric
shock.
. Use a weatherproof,
heavy-duty, 15 amp-rated
extension cord if needed.
Failure to use the
recommended extension cord
in good operating condition,
or using a damaged heater or
extension cord, could make it
overheat and cause a fire,
property damage, electric
shock, and injury.
. Do not operate the vehicle
with the heater cord
permanently attached to the
(Continued)

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

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
352 INDEX
SeatsHead Restraints . . . . . . . . . . . . . . . . . . . . . 34
Heated and Ventilated Front . . . . . . . 40
Lumbar Adjustment, Front . . . . . . . . . 36
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power Adjustment, Front . . . . . . . . . . 35
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Reclining Seatbacks . . . . . . . . . . . . . . . . 36
Securing Child Restraints . . . . . . . 76, 78
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Vehicle Alarm . . . . . . . . . . . . . . . . . . . . . . . 22
Self-Sealing Tires . . . . . . . . . . . . . . . . . . . 269
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 Accessories andModifications . . . . . . . . . . . . . . . . . . . . 235
Doing Your Own Work . . . . . . . . . . . 235
Maintenance Records . . . . . . . . . . . . 316
Maintenance, General Information . . . . . . . . . . . . . . . . . . . . . . 302
Parts Identification . . . . . . . . . . . . . . . 317
Scheduling Appointments . . . . . . . . 326
Service Electric Parking Brake
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Services Special Application . . . . . . . . . . . . . . . 309 Servicing the Airbag . . . . . . . . . . . . . . . . . 61
Shifting
Into Park . . . . . . . . . . . . . . . . . . . . . 163, 164
Out of Park . . . . . . . . . . . . . . . . . . . . . . . . 165
Side Blind Zone Alert (SBZA) . . . . . . 217
Signals, Turn and Lane-Change . . . . 129
Special Application Services . . . . . . . 309
Specifications and Capacities . . . . . . 318
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . 96
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Start Assist, Hill . . . . . . . . . . . . . . . . . . . . 181
Start Vehicle, Remote . . . . . . . . . . . . . . . 14
Starter Switch Check . . . . . . . . . . . . . . . 255
Starting the Engine . . . . . . . . . . . . . . . . . 160
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 Heated Wheel . . . . . . . . . . . . . . . . . . . . . . . 86
Wheel Adjustment . . . . . . . . . . . . . . . . . . 86
Wheel Controls . . . . . . . . . . . . . . . . . . . . . 86
Stop/Start System . . . . . . . . . . . . . . . . . . 161
Storage Areas Cargo Management System . . . . . . . . 84
Center Console . . . . . . . . . . . . . . . . . . . . . . 83
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Umbrella . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Storage Compartments . . . . . . . . . . . . . . 82
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257 Stuck Vehicle . . . . . . . . . . . . . . . . . . . . . . . 153
Summer Tires . . . . . . . . . . . . . . . . . . . . . . . 270
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System
Forward Collision Alert (FCA) . . . . 211
Infotainment . . . . . . . . . . . . . . . . . 133, 334
Systems Driver Assistance . . . . . . . . . . . . . . . . . 203
T
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Text Telephone (TTY) Users . . . . . . . 323
Theft-Deterrent Systems . . . . . . . . . . . . 24Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . 24
Thigh Support Adjustment . . . . . . . . . . 36
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
All-Season . . . . . . . . . . . . . . . . . . . . . . . . . 268
Buying New Tires . . . . . . . . . . . . . . . . . 282
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Designations . . . . . . . . . . . . . . . . . . . . . . 272
Different Size . . . . . . . . . . . . . . . . . . . . . . 284
If a Tire Goes Flat . . . . . . . . . . . . . . . . 287
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 280
Low Profile . . . . . . . . . . . . . . . . . . . . . . . . 270
Pressure . . . . . . . . . . . . . . . . . . . . . . 275, 276