2005 CADILLAC CTS door lock

Central Door Unlocking System
Your vehicle has a central door unlocking feature. When
unlocking the driver’s door, you can unlock the other
doors by holding the key in the turned position for a
few seconds or by quickly turning the key twice in the
lock cylinder.
Power Door Locks
The power door lock
switches are located
on the front doors.
Press the bottom part of the power door lock switch to
lock or the top of the switch to unlock all the doors
at once.The rear doors do not have power door lock switches.
You must use the manual levers to lock and unlock
the rear doors when riding in the rear seat.
Delayed Locking
With this feature, you can delay the actual locking
of the doors.
When the power door lock switch or the lock button on
the remote keyless entry transmitter is pressed when
the key is not in the ignition and the driver’s door
is opened, a chime will sound three times indicating that
delayed locking is active.
When all the doors are closed, the doors will lock
automatically after ve seconds. If a door is reopened
before ve seconds have elapsed, the ve second timer
will reset itself once all the doors are closed again.
You can press the door lock switch or the lock button
on the remote keyless entry transmitter again to override
this feature and lock the doors immediately.
You can turn this feature off using the Driver Information
Center (DIC). When delayed locking is off, the doors
will lock immediately when you press the power
door lock switch or the lock button on the remote keyless
entry transmitter. SeeDIC Vehicle Personalization on
page 3-74for more information.
2-9

Programmable Automatic
Door Locks
If your vehicle has an automatic transmission, your
vehicle is programmed so that when the doors
are closed, the ignition is on and the shift lever is
moved out of PARK (P), all the doors will lock. The
doors will unlock every time you stop the vehicle and
move the shift lever back into PARK (P).
If your vehicle has a manual transmission, the vehicle is
programmed so that the doors will lock automatically
after the vehicle speed reaches 5 mph (8 km). The doors
will not automatically unlock until the ignition is turned
off and the key is removed from the ignition switch.
If someone needs to exit the vehicle once the doors are
locked, have that person use the manual lever or
power door lock switch. When the door is closed again,
it will not lock automatically. Use the manual lever or
the power door lock switch to lock the door.
The power door locks can be programmed through
prompts displayed on the Driver Information
Center (DIC). These prompts allow you to choose
various lock and unlock settings. For more information
on programming, seeDIC Vehicle Personalization
on page 3-74.
Rear Door Security Locks
Your vehicle is equipped with rear door security locks
that prevent passengers from opening the rear doors on
your vehicle from the inside.
The rear door security locks
are located on the inside
edge of each rear door.
You must open the rear
doors to access them.
To use these locks, do the following:
1. Insert your key into the slot next to the rear door
security lock label and turn it to engage the lock.
2. Close the door.
3. Repeat the steps for the other rear door.
The rear doors on your vehicle cannot be opened
from the inside when this feature is in use.
2-10

When you want to open a rear door when the security
lock is on, do the following:
1. Unlock the door using the remote keyless entry
transmitter, the front door power lock switch or
by lifting the rear door manual lock.
2. Then open the door from the outside.
To cancel the rear door security lock, do the following:
1. Unlock the door and open it from the outside.
2. Insert your key into the slot next to the rear door
security lock label and turn it to disengage the lock.
3. Repeat the steps for the other lock.
The rear door locks will now work normally.
Lockout Protection
If you press the power door lock switch when the key is
in the ignition and any door is open, all the doors will
lock and only the driver’s door will unlock. If you
close the doors, you can lock them using the remote
keyless entry transmitter. Be sure to remove the
key from the ignition when locking your vehicle.
This feature can be overridden by pressing the lock
button on the remote keyless entry transmitter or
by pressing the power lock switch a second time.
Trunk
{CAUTION:
It can be dangerous to drive with the trunk lid
open because carbon monoxide (CO) gas can
come into your vehicle. You cannot see or
smell CO. It can cause unconsciousness and
even death. If you must drive with the trunk lid
open or if electrical wiring or other cable
connections must pass through the seal
between the body and the trunk lid:
Make sure all other windows are shut.
Turn the fan on your heating or cooling
system to its highest speed and select the
control setting that will force outside air
into your vehicle. See Climate Control
System in the Index.
If you have air outlets on or under the
instrument panel, open them all the way.
SeeEngine Exhaust on page 2-38.
2-11

Trunk Lock Release
The remote trunk release
button is located on the
lower portion of the
driver’s door.
To use this feature, an automatic transmission must be
in PARK (P) or NEUTRAL (N) and your manual
transmission must be in NEUTRAL with the parking
brake set.
Press the button to open the trunk. You can also press
the button with the trunk symbol on the remote
keyless entry transmitter to open the trunk.
If your vehicle is ever without power, you can still
access the trunk area. Use one of the following
procedures to open the trunk manually.If your vehicle is equipped with the rear seat
pass-through door, do the following:
1. Fold the rear armrest down and open the
pass-through door. See “Rear-Seat Pass Through”
following for more information.
2. Reach upward through the opening to locate the
emergency trunk release handle. See “Emergency
Trunk Release Handle” following.
3. Pull forward on the trunk release handle to open
the trunk lid.
If your vehicle is equipped with the split folding rear
seat, do the following:
1. Fold down the rear seatback. SeeSplit Folding
Rear Seat on page 1-6for more information.
2. Reach upward through the opening to locate the
trunk release handle.
3. Pull forward on the trunk release handle to open
the trunk lid.
2-12

Rear-Seat Pass Through
If your vehicle is equipped with the rear seat-pass
through door, you can access the trunk without opening
the trunk lid. This is especially useful when transporting
long items.
To open the door, pull down the rear seat armrest. Then
pull the lever all the way down to release the door.
To close the panel, push the door up and back
into place. Then try to open the door without pulling up
on the lever to make sure it is locked into place.
Emergency Trunk Release Handle
Notice:Using the emergency trunk release handle
as a tie-down or anchor point when securing
items in the trunk may damage it. Use the
emergency trunk release handle only to help you
open the trunk lid.
There is a glow-in-the-dark emergency trunk release
handle located on the back wall of the trunk. This handle
will glow following exposure to light. Pull the release
handle toward the front of the vehicle to open the trunk
from the inside.
2-13

Window Lockout
This feature allows you to disable the passenger
window switches.
The passenger window
lockout button is located
below the power window
switches on the driver’s
door armrest.
Press the button to disable the passenger window
controls. The light on the button will illuminate, indicating
that the feature is in use. The passenger windows still
can be raised or lowered using the driver’s window
switches when the lockout feature is active.To restore power to the passenger windows, press the
button again. The light on the button will go out.
You can program this feature to disable all passenger
windows or only the rear passenger windows. See
DIC Vehicle Personalization on page 3-74for more
information.
Sun Visors
Swing down the primary visor to block out glare. It can
also be detached from the center mount and moved
to the side to block glare from that direction.
The driver’s sunshade may also have buttons for a
built-in garage door opener. SeeHomeLink
®Wireless
Control System on page 2-46for more information.
Lighted Visor Vanity Mirror
Pull the visor down and lift the cover. The light will
automatically come on. The light will go out when you
close the cover.
2-17

Theft-Deterrent Systems
Vehicle theft is big business, especially in some cities.
Although your vehicle has a number of theft-deterrent
features, we know that nothing we put on it can make it
impossible to steal.
Theft-Deterrent System
If your vehicle has this
feature, the security light is
located on the instrument
panel cluster.
If the ignition is off and a door is open, the security light
will ash, reminding you to arm the theft-deterrent
system.
To arm the system, do the following:
1. Lock the door using the remote keyless entry
transmitter or the power door lock switch.
2. Close all the doors. The security light will illuminate.
It should go off within approximately 30 seconds.
Your security system is now armed.If a door or a trunk is opened without a key or a remote
keyless entry transmitter, the horn will sound and the
lamps will ash for up to 30 seconds.
The theft-deterrent system won’t arm if you lock
the doors with a key or use the manual door lock.
It activates only if you use the remote keyless entry
transmitter or the power lock on the door.
To avoid activating the alarm by accident do the
following:The vehicle should be locked with the door key or
the manual door lock after the doors are closed if
you don’t want to arm the theft-deterrent system.
Always unlock a door with a key or use the remote
keyless entry transmitter. Pressing the unlock
button on the remote keyless entry transmitter
disables the theft-deterrent system. Unlocking a
door any other way will activate the alarm when a
door or the trunk is opened.
If you activate the alarm by accident, unlock the driver’s
door with your key. You can also turn off the alarm by
using the unlock button on the remote keyless entry
transmitter, or by starting the vehicle with a valid key.
2-18

Testing the Alarm
1. From inside the vehicle, roll down the window, then
get out of the vehicle, keeping the door open.
2. From outside of the vehicle, with the door open,
lock the vehicle using the power door lock switch
or the remote keyless entry transmitter and
close the door. Wait approximately 30 seconds until
the security light goes off.
3. Reach in and unlock the door using the manual
lock and open the door. The horn will sound and
the exterior lamps will ash.
You can turn off the alarm by unlocking the driver’s door
with your key, using the unlock button on the remote
keyless entry transmitter or by starting the car with
a valid key.
If the alarm does not sound when it should, check to
see if the horn works. The horn fuse may be blown.
To replace the fuse, seeFuses and Circuit Breakers on
page 5-96. If the fuse does not need to be replaced,
you may need to have your vehicle serviced.
To reduce the possibility of theft, always arm the
theft-deterrent system when leaving your vehicle.
Immobilizer
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation.
This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modications to this system by other than
an authorized service facility could void authorization to
use this equipment.
2-19