2018 CADILLAC CTS ECU

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
24 IN BRIEF
Reverse Automatic
Braking (RAB)
If the vehicle has Adaptive Cruise
Control (ACC) it also has the RAB
system, which is designed to help
avoid or reduce the harm caused by
backing crashes when the vehicle is
shifted into R (Reverse). If the system
detects the vehicle is backing too fast
to avoid a crash with a detected object
behind your vehicle in your path, it
may automatically brake hard to
a stop.
SeeAssistance Systems for Parking or
Backing 0226.
Vehicle-to-Vehicle
If equipped, this technology
communicates with other
Vehicle-to-Vehicle (V2V)-equipped
vehicles. It can help drivers avoid
crashes and traffic congestion. V2V
technology alerts when other
V2V-equipped vehicles ahead are
braking hard, are disabled, or may be
on slippery roads. See
Vehicle-to-Vehicle 0240.
Power Outlets
Power Outlets 12-Volt Direct Current
Accessory power outlets can be used
to plug in electrical equipment, such
as a cell phone or MP3 player.
The vehicle has three 12-volt
accessory power outlets:
.
Inside the center console storage
in front of the armrest cover.
. Inside the storage area under the
armrest cover.
. Inside the storage area on the rear
of the center console, if equipped.
These outlets are powered while the
vehicle is on or in ACC/ACCESSORY
mode, or until the driver door is
opened within 10 minutes of turning
off the vehicle.
Lift the cover to access the accessory
power outlet.
See Power Outlets 0113.
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 0149.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
KEYS, DOORS, AND WINDOWS 29
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . . . . . 30
Remote Vehicle Start . . . . . . . . . . . . . . 37
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 38
Power Door Locks . . . . . . . . . . . . . . . . . 40
Delayed Locking . . . . . . . . . . . . . . . . . . . 40
Automatic Door Locks . . . . . . . . . . . . 41
Lockout Protection . . . . . . . . . . . . . . . . 41
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . 42
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . 44
Vehicle Alarm System . . . . . . . . . . . . . 44
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . 46
Immobilizer Operation . . . . . . . . . . . . 46
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . 47
Manual Mirrors . . . . . . . . . . . . . . . . . . . . 47 Power Mirrors . . . . . . . . . . . . . . . . . . . . . . 47
Folding Mirrors . . . . . . . . . . . . . . . . . . . . 47
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . 47
Automatic Dimming Mirror . . . . . . . 48
Reverse Tilt Mirrors . . . . . . . . . . . . . . . 48
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . 48
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Rear Camera Mirror . . . . . . . . . . . . . . . 48
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Power Windows . . . . . . . . . . . . . . . . . . . . 50
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Rear Window Sunshade . . . . . . . . . . . 52
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Keys and Locks
Keys
{Warning
Leaving 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 CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
40 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 key is used,
or the correct 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 key
fully inserted. Remove the key and
insert it again. If this does not reset
the lock, turn the 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 activated.
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.
Delayed locking can only be turned on
when the Open Door Anti-Lockout
feature has been turned off.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
44 KEYS, DOORS, AND WINDOWS
Emergency Trunk Release
Handle
Caution
Do 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.
After pulling the emergency trunk
release handle, push the handle back
into the bezel.
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.
On Solid : Vehicle is secured during
the delay to arm the system.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
KEYS, DOORS, AND WINDOWS 45
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
Q
on 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
Kon 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
Kon 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
IfKis pressed on the 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.
Power Sounder and Inclination
Sensor
In addition to the standard
theft-deterrent system features, this
system may also have a power
sounder and inclination sensor.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
46 KEYS, DOORS, AND WINDOWS
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.
Immobilizer
SeeRadio Frequency Statement 0367.
Immobilizer Operation
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the vehicle is
turned off.
The immobilization system is
disarmed when the ignition is turned
on or to ACC/ACCESSORY 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, 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.
If the ignition modes will not change
with the other transmitter or in the
transmitter pocket, the vehicle needs
service. If the ignition does change
modes, the first transmitter may be
faulty. See your 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 030.
Do not leave the key or device that
disarms or deactivates the
theft-deterrent system in the vehicle.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
SEATS AND RESTRAINTS 55
Seats and Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . . . . . . 56
Front Seats
Power Seat Adjustment . . . . . . . . . . . 57
Lumbar Adjustment . . . . . . . . . . . . . . . 60
Thigh Support Adjustment . . . . . . . . 60
Reclining Seatbacks . . . . . . . . . . . . . . . 61
Memory Seats . . . . . . . . . . . . . . . . . . . . . . 62
Heated and Ventilated FrontSeats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Heated Rear Seats . . . . . . . . . . . . . . . . . 68
Rear Seat Pass-Through Door . . . . . 69
Seat Belts
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . 71
Seat Belt Use During Pregnancy . . . . . . . . . . . . . . . . . . . . . . . . . 74
Seat Belt Extender . . . . . . . . . . . . . . . . . 75
Safety System Check . . . . . . . . . . . . . . 75
Seat Belt Care . . . . . . . . . . . . . . . . . . . . . . 75 Replacing Seat Belt System Parts
after a Crash . . . . . . . . . . . . . . . . . . . . . . 76
Airbag System
Airbag System . . . . . . . . . . . . . . . . . . . . . 76
Where Are the Airbags? . . . . . . . . . . . 78
When Should an AirbagInflate? . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
What Makes an Airbag Inflate? . . . 80
How Does an Airbag Restrain? . . . 81
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 . . . . . . . . 87
Airbag System Check . . . . . . . . . . . . . . 87
Replacing Airbag System Parts after a Crash . . . . . . . . . . . . . . . . . . . . . . 88
Child Restraints
Older Children . . . . . . . . . . . . . . . . . . . . . 88
Infants and Young Children . . . . . . 90
Child Restraint Systems . . . . . . . . . . . 92
Where to Put the Restraint . . . . . . . 94
Lower Anchors and Tethers forChildren (LATCH System) . . . . . . . 95
Replacing LATCH System Parts
After a Crash . . . . . . . . . . . . . . . . . . . . 100 Securing Child Restraints (With
the Seat Belt in the
Rear Seat) . . . . . . . . . . . . . . . . . . . . . . . 101
Securing Child Restraints (With the Seat Belt in the
Front Seat) . . . . . . . . . . . . . . . . . . . . . . 103

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
68 SEATS AND RESTRAINTS
Raising the Seatback
{Warning
If either seatback is not locked, it
could move forward in a sudden
stop or crash. That could cause
injury to the person sitting there.
Always push and pull on the
seatbacks to be sure they are
locked.
{Warning
A seat belt that is improperly
routed, not properly attached,
or twisted will not provide the
protection needed in a crash. The
person wearing the belt could be
seriously injured. After raising the
rear seatback, always check to be
sure that the seat belts are properly
routed and attached, and are not
twisted.To raise a seatback:
1. Lift the seatback up. Make sure the center seat belt and latch do
not get trapped behind the seat.
Push the seatback rearward to
secure it in place.
A red tab near the seatback lever
retracts when the seatback is in
place.
2. Push and pull the top of the seatback to be sure it is in
position.
3. Lock the seatback using the vehicle key in the cylinder.
4. Reconnect the center seat belt mini-latch to the mini-buckle. Do
not let the belt twist.
5. Pull on the center seat belt to make sure the mini-latch is
secure.
6. Repeat the steps to raise the other seatback, if necessary.
When the seat is not in use, it should
be kept in the upright, locked position.
Heated Rear Seats
{Warning
If temperature change or pain to
the skin cannot be felt, the seat
heater may cause burns. See the
Warning under Heated and
Ventilated Front Seats 064.
If equipped, the buttons are on the
rear of the center console.