Page 47 of 443

Black plate (16,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
2-16 Keys, Doors, and Windows
To access by the rear seat
pass-through door, if equipped:
1. Fold the rear armrest down andopen the pass-through door. See
Rear Seat Pass-Through Door
on page 3-12.
2. Reach inward through the opening to locate the emergency
trunk release handle. See
“Emergency Trunk Release
Handle” following.
3. Pull the release handle toward the front of the vehicle to open
the trunk.
To access by the folding the rear
seat, if equipped:
1. Fold down the rear seatback. See Rear Seats on page 3-10.
2. Reach inward through the opening to locate the emergency
trunk release handle.
3. Pull the release handle toward the front of the vehicle to open
the trunk.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 use, return to the stored
position. 
         
        
        
     
        
        Page 48 of 443

Black plate (17,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
Keys, Doors, and Windows 2-17
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:Vehicle system is disarmed. On 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 the
interior
Q.
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
Qon 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 for the next
unauthorized event. 
         
        
        
     
        
        Page 49 of 443

Black plate (18,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
2-18 Keys, Doors, and Windows
Disarming the Alarm System
To disarm the alarm system or turn
off the alarm if it has been activated,
do one of the following:
.PressKon 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 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 on
page 5-41.
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.
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
See
Radio Frequency Statement on
page 13-12.
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 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. 
         
        
        
     
        
        Page 50 of 443

Black plate (19,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
Keys, Doors, and Windows 2-19
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 comes 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 on
page 5-36.
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 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 on page 2-2.
Do not leave the key or device that
disarms or deactivates the
theft-deterrent system in the vehicle. 
         
        
        
     
        
        Page 55 of 443

Black plate (24,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
2-24 Keys, Doors, and Windows
4. Continue holding the switch upfor approximately two seconds
after the window is completely
closed.
The window is now reprogrammed.
Repeat the process for the other
windows.
Window Lockout (Sedan Only)
This feature prevents the rear
passenger windows from operating,
except from the driver position. Press
v
{to activate the window
lockout. The indicator light in the
switch will illuminate when
activated.
The rear door safety locks are also
disabled. See Safety Locks (Sedan
Only) on page 2-14.
Press
v {again to deactivate the
lockout switch.
If the indicator light flashes, the
feature may not be working properly.
Sun Visors
Pull the visor toward you, or move it
to the side to help reduce glare.
To use the lighted mirror, lift the
cover.
Roof
Sunroof
If equipped with a sunroof, the
ignition must be in ON/RUN/START
or ACC/ACCESSORY, or in
Retained Accessory Power (RAP),
to operate the sunroof. See Ignition
Positions on page 9-16 and
Retained Accessory Power (RAP)
on page 9-21.
1. SLIDE Switch
2. TILT Switch 
         
        
        
     
        
        Page 66 of 443

Black plate (9,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
Seats and Restraints 3-9
If the memory position is still not
recalling, see your dealer for
service.
Heated Front Seats
{Warning
If you cannot feel temperature
change or pain to the skin, the
seat heater may cause burns. To
reduce the risk of burns, people
with such a condition should use
care when using the seat heater,
especially for long periods of
time. Do not place anything on
the seat that insulates against
heat, such as a blanket, cushion,
cover, or similar item. This may
cause the seat heater to
overheat. An overheated seat
heater may cause a burn or may
damage the seat.
Uplevel Buttons Shown, BaseButtons Similar
If available, the buttons are near the
climate controls on the center stack.
To operate, the ignition must be in
ON/RUN/START.
Press
J/Morz/Lto heat the
driver or passenger seat cushion
and seatback. Press the button once for the
highest setting. With each press of
the button, the seat will change to
the next lower setting, and then to
the off setting. The indicator lights
next to the buttons indicate three for
the highest setting and one for the
lowest. If the heated seats are on
high, the level may automatically be
lowered after approximately
30 minutes.
When this feature is off, the heated
seat symbol on the button is white.
When the heated seat is turned on,
the symbol turns red.
The passenger seat may take
longer to heat up. 
         
        
        
     
        
        Page 67 of 443

Black plate (10,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
3-10 Seats and Restraints
Remote Start Auto Heated Seats
When it is cold outside, the heated
seats can be turned on
automatically during a remote start.
They are canceled when the ignition
is turned on. Press the button to use
the heated seats after the vehicle is
started.
The heated seat indicator lights do
not turn on during a remote start.
The temperature performance of an
unoccupied seat may be reduced.
This is normal.
The heated seats will not turn on
during a remote start unless they
are enabled in the vehicle
personalization menu. SeeRemote
Vehicle Start on page 2-9 and
Vehicle Personalization on
page 5-44.Rear Seats
Folding the Seatback
On some vehicles, either side of the
seatback can be folded for more
cargo space. Fold a seatback only
when the vehicle is not moving.
{Caution
Folding a rear seat with the safety
belts still fastened may cause
damage to the seat or the safety
belts. Always unbuckle the safety
belts and return them to their
normal stowed position before
folding a rear seat. To fold the seatback:
1. Disconnect the rear safety belt
mini-latch using a key in the slot
on the mini-buckle, and let the
belt retract. 
         
        
        
     
        
        Page 72 of 443
Black plate (15,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
Seats and Restraints 3-15
2. Pick up the latch plate and pullthe 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.
If the webbing locks in the latch
plate before it reaches the
buckle, tilt the latch plate flat to
unlock.