2016 CADILLAC CT6 ECU

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
24 In Brief See Assistance Systems for Parking
or Backing 0 231 .
Surround Vision
Recorder If equipped, the Surround Vision
Recorder records 360° camera
views to an SD card. Only images
are recorded, no sound.
See Surround Vision
Recorder 0 250 .
Power Outlets
1. Power Outlet 110V/120V
Alternating Current 2. Power Outlet 12 Volt Direct
Current
The 12-volt accessory power outlet
can be used to plug in electrical
equipment, such as a cell phone or
MP3 player.
The vehicle has an accessory
power outlet on the rear seat trim
panel.
Lift the cover to access the
accessory power outlet.
See Power Outlets 0 114 .
Universal Remote System If equipped, this system provides a
way to replace up to three remote
control transmitters used to activate
devices such as garage door
openers, security systems, and
home automation devices.
Read the instructions completely
before attempting to program the
Universal Remote system. Because
of the steps involved, it may be
helpful to have another person
available to assist you with
programming the Universal Remote
system.
See Universal Remote
System 0 166 .
Sunroof If equipped with a sunroof, the
ignition must be in ON/RUN or ACC/
ACCESSORY, or in Retained
Accessory Power (RAP), to operate
the sunroof. See Ignition Positions
0 202 and Retained Accessory
Power (RAP) 0 206 .

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
28 Keys, Doors, and Windows
Keys, Doors, and
Windows Keys and Locks Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Remote Keyless Entry (RKE)
System . . . . . . . . . . . . . . . . . . . . . . . 29
Remote Keyless Entry (RKE)
System Operation . . . . . . . . . . . . 29
Remote Vehicle Start . . . . . . . . . . 36
Door Locks . . . . . . . . . . . . . . . . . . . . 37
Power Door Locks . . . . . . . . . . . . . 39
Delayed Locking . . . . . . . . . . . . . . . 39
Automatic Door Locks . . . . . . . . . 39
Lockout Protection . . . . . . . . . . . . . 39
Safety Locks . . . . . . . . . . . . . . . . . . . 40
Doors Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Vehicle Security Vehicle Security . . . . . . . . . . . . . . . . 44
Vehicle Alarm System . . . . . . . . . 44
Immobilizer . . . . . . . . . . . . . . . . . . . . 46
Immobilizer Operation . . . . . . . . . 46
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . 48
Power Mirrors . . . . . . . . . . . . . . . . . . 48 Heated Mirrors . . . . . . . . . . . . . . . . . 49
Reverse Tilt Mirrors . . . . . . . . . . . . 49
Interior Mirrors Interior Rearview Mirrors . . . . . . . 49
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . 49
Rear Camera Mirror . . . . . . . . . . . . 50
Windows Windows . . . . . . . . . . . . . . . . . . . . . . . 51
Power Windows . . . . . . . . . . . . . . . 52
Sun Visors . . . . . . . . . . . . . . . . . . . . . 54
Rear Window Sunshade . . . . . . . 54
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 55 Keys and Locks Keys
{ WarningLeaving children in a vehicle with
a Remote Keyless Entry (RKE)
transmitter 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 RKE transmitter
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 an RKE
transmitter.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
44 Keys, Doors, and Windows When closing the power trunk using
this feature, there will be a short
delay. The taillamps will flash and a
chime will sound. Move away from
the trunk before it starts moving.
Rear Seat Pass-Through Use the rear seat pass-through door
when transporting long items. See
Rear Seat Pass-Through Door 0 69 .
Emergency Trunk Release
Handle CautionDo not use the emergency trunk
release handle as a tie-down or
anchor point when securing items
in the trunk as it could damage
the handle.
There is a glow-in-the-dark
emergency trunk release handle on
the trunk lid. This handle will glow
following exposure to light. Pull the
release handle to open the trunk
from the inside.
If equipped with a power trunk, the
emergency trunk release handle will
power open the trunk.
After use, return to the stored
position. Vehicle Security This vehicle has theft-deterrent
features; however, they do not make
the vehicle impossible to steal.
Vehicle Alarm System This vehicle has an anti-theft alarm
system.
The indicator light, on the
instrument panel near the
windshield, indicates the status of
the system.
Off : Alarm system is disarmed.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Keys, Doors, and Windows 45On Solid : Vehicle is secured
during the delay to arm the system.
Fast Flash : Vehicle is unsecured.
A door, the hood, or the trunk
is open.
Slow Flash : Alarm system is
armed.
Arming the Alarm System 1. Turn off the vehicle.
2. Lock the vehicle in one of
three ways:
.
Use the RKE transmitter.
.
Use the Keyless Access
system.
.
With a door open, press
Qon the interior of the door.
3. After 30 seconds the alarm
system will arm, and the
indicator light will begin to
slowly flash indicating the
alarm system is operating.
Pressing
Q on the RKE
transmitter a second time will
bypass the 30-second delay
and immediately arm the alarm
system. The vehicle alarm system will not
arm if the doors are locked with
the key.
If the driver door is opened without
first unlocking with the RKE
transmitter, the horn will chirp and
the lights will flash to indicate
pre-alarm. If the vehicle is not
started, or the door is not unlocked
by pressing
K on the RKE
transmitter during the 10-second
pre-alarm, the alarm will be
activated.
The alarm will also be activated if a
passenger door, the trunk, or the
hood is opened without first
disarming the system. When the
alarm is activated, the turn signals
flash and the horn sounds for about
30 seconds. The alarm system will
then re-arm to monitor the next
unauthorized event.
Disarming the Alarm System
To disarm the alarm system or turn
off the alarm if it has been activated:
.
Press
K on the RKE transmitter. .
Unlock the vehicle using the
Keyless Access system.
.
Start the vehicle.
To avoid setting off the alarm by
accident:
.
Lock the vehicle after all
occupants have left the vehicle
and all doors are closed.
.
Always unlock a door with the
RKE transmitter or use the
Keyless Access system.
Unlocking the driver door with the
key will not disarm the system or
turn off the alarm.
How to Detect a Tamper
Condition If
K is pressed on the RKE
transmitter and the horn chirps and
the lights flash three times, a
previous alarm occurred while the
system was armed.
If the alarm has been activated, a
message will appear on the DIC.
See Security Messages 0 155 .

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
46 Keys, Doors, and Windows Power Sounder, Inclination
Sensor, and Intrusion Sensor In addition to the standard
theft-deterrent system features, this
system may also have a power
sounder, inclination sensor, and
intrusion sensor.
The power sounder provides an
audible alarm, which is distinct from
the vehicle ’ s horn. It has its own
power source, and can sound an
alarm if the vehicle ’ s battery is
compromised.
The inclination sensor can set off
the alarm if it senses movement of
the vehicle, such as a change in
vehicle orientation.
The intrusion sensor monitors the
vehicle interior, and can activate the
alarm if it senses unauthorized entry
into the vehicle ’ s interior. Do not
allow passengers or pets to remain
in the vehicle when the intrusion
sensor is activated. Before arming the theft-deterrent
system and activating the intrusion
sensor:
.
Make sure all doors and
windows are completely closed.
.
Secure any loose items such as
sunshades.
.
Make sure there are no
obstructions blocking the
sensors in the front overhead
console.
Inclination and Intrusion
Sensors Disable Switch It is recommended that the intrusion
and inclination sensors be
deactivated if pets are left in the
vehicle or if the vehicle is being
transported. With the vehicle turned off, press
o in the front overhead console.
The indicator light will come on
momentarily, indicating that these
sensors have been disabled for the
next alarm system arming cycle.
Immobilizer See Radio Frequency
Statement 0 371 .
Immobilizer Operation This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Keys, Doors, and Windows 47The vehicle is automatically
immobilized when the vehicle is
turned off.
The immobilization system is
disarmed when the pushbutton start
is activated to enter the ACC/
ACCESSORY mode or the ON/
RUN/START mode and a valid
transmitter is present in the vehicle.
The security light, in the instrument
cluster, comes on if there is a
problem with arming or disarming
the theft-deterrent system.
The system has one or more RKE
transmitters matched to an
immobilizer control unit in the
vehicle. Only a correctly matched
RKE transmitter will start the
vehicle. If the transmitter is ever
damaged, you may not be able to
start your vehicle. When trying to start the vehicle, the
security light may come on briefly
when the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the vehicle will not change ignition
modes (ACC/ACCESSORY, ON/
RUN/START, OFF), and the RKE
transmitter appears to be
undamaged, try another transmitter.
Or, you may try placing the
transmitter in the transmitter pocket
located in the center console. See
Key and Lock Messages 0 150 .
If the ignition modes will not change
with the other transmitter, your
vehicle needs service. If the ignition
does change modes, the first
transmitter may be faulty. See the
dealer.
It is possible for the immobilizer
system to learn new or replacement
RKE transmitters. Up to eight
transmitters can be programmed for
the vehicle. To program additional
transmitters, see “ Programming Transmitters to the Vehicle ” under
Remote Keyless Entry (RKE)
System Operation 0 29 .
Do not leave the key or device that
disarms or deactivates the
theft-deterrent system in the vehicle.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Seats and Restraints 57
Seats and
Restraints Head Restraints Head Restraints . . . . . . . . . . . . . . . 58
Front Seats Power Seat Adjustment . . . . . . . . 60
Lumbar Adjustment . . . . . . . . . . . . 60
Thigh Support Adjustment . . . . . 61
Reclining Seatbacks . . . . . . . . . . . 62
Memory Seats . . . . . . . . . . . . . . . . . 63
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . 64
Massage . . . . . . . . . . . . . . . . . . . . . . . 66
Rear Seats Rear Seats . . . . . . . . . . . . . . . . . . . . 66
Lumbar Adjustment . . . . . . . . . . . . 68
Rear Seat Armrest . . . . . . . . . . . . . 68
Heated and Ventilated Rear
Seats . . . . . . . . . . . . . . . . . . . . . . . . . 69
Rear Seat
Pass-Through Door . . . . . . . . . . 69
Safety Belts
Safety Belts . . . . . . . . . . . . . . . . . . . . 70
How to Wear Safety Belts
Properly . . . . . . . . . . . . . . . . . . . . . . 71 Lap-Shoulder Belt . . . . . . . . . . . . . 72
Safety Belt Use During
Pregnancy . . . . . . . . . . . . . . . . . . . . 74
Safety Belt Extender . . . . . . . . . . . 75
Safety System Check . . . . . . . . . . 75
Safety Belt Care . . . . . . . . . . . . . . . 75
Replacing Safety Belt System
Parts after a Crash . . . . . . . . . . . 75
Airbag System Airbag System . . . . . . . . . . . . . . . . . 76
Where Are the Airbags? . . . . . . . 78
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . 79
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . 80
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 80
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . 81
Passenger Sensing System . . . 82
Servicing the Airbag-Equipped
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 86
Adding Equipment to the
Airbag-Equipped Vehicle . . . . . 86
Airbag System Check . . . . . . . . . . 87
Replacing Airbag System Parts
after a Crash . . . . . . . . . . . . . . . . . 87
Child Restraints
Older Children . . . . . . . . . . . . . . . . . 88 Infants and Young Children . . . . 90
Child Restraint Systems . . . . . . . 92
Where to Put the Restraint . . . . . 94
Lower Anchors and Tethers for
Children (LATCH System) . . . . 95
Replacing LATCH System
Parts After a Crash . . . . . . . . . 100
Securing Child Restraints
(Rear Seat) . . . . . . . . . . . . . . . . . 101
Securing Child Restraints
(Front Passenger Seat) . . . . . 103

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
72 Seats and Restraints
Lap-Shoulder Belt All seating positions in the vehicle
have a lap-shoulder belt.
The following instructions explain
how to wear a lap-shoulder belt
properly.
1. Adjust the seat, if the seat is
adjustable, so you can sit up
straight. To see how, see
“ Seats ” in the Index.
2. Pick up the latch plate and pull
the belt across you. Do not let
it get twisted. The lap-shoulder belt may lock
if you pull the belt across you
very quickly. If this happens, let
the belt go back slightly to
unlock it. Then pull the belt
across you more slowly.
If the shoulder portion of a
passenger belt is pulled out all
the way, the child restraint
locking feature may be
engaged. If this happens, let
the belt go back all the way
and start again.
Engaging the child restraint
locking feature in the front
outboard seating position may
affect the passenger sensing
system. See Passenger
Sensing System 0 82 . 3. Push the latch plate into the
buckle until it clicks.
Pull up on the latch plate to
make sure it is secure. If the
belt is not long enough, see
Safety Belt Extender 0 75 .
Position the release button on
the buckle so that the safety
belt could be quickly unbuckled
if necessary.
4. If equipped with a shoulder belt
height adjuster, move it to the
height that is right for you. See
“ Shoulder Belt Height Adjuster ”
later in this section for
instructions on use and
important safety information.