2008 CADILLAC CTS key

Battery Replacement
Replace the battery if the Replace Battery In Remote
Key message displays in the DIC. See “Replace Battery
In Remote Key” underDIC Warnings and Messages
on page 3-56for additional information.
A weak battery may also cause the DIC to display
Electronic Key Not Detected when you try to start the
vehicle. If this happens, place the transmitter in the
center console storage area transmitter pocket with the
buttons facing to the front of the vehicle. Then, with
the vehicle in PARK (P) or NEUTRAL (N), press
the brake pedal and the ignition control knob. See
Starting the Engine on page 2-35, for additional
information about your vehicle’s electronic keyless
ignition with push start. Although this will start the
vehicle, it is recommended that you replace the
transmitter battery as soon as possible.
Notice:When replacing the battery, do not touch
any of the circuitry on the transmitter. Static
from your body could damage the transmitter.To replace the battery:
1. Separate the halves of the transmitter with a at,
thin object inserted into the slot on the side or
back of the transmitter.
2. Remove the old battery. Do not use a metal object.
3. Insert the new battery, positive side facing down.
Replace with a CR2032 or equivalent battery.
4. Put the transmitter back together tightly.
2-15

Remote Vehicle Start
This vehicle may have a remote starting feature that
starts the engine from outside of the vehicle. It may also
start the vehicle’s automatic climate control system.
When the remote start system is active, the climate
control system heats and cools the inside of the vehicle
according to the previous settings of the system
before turning the vehicle off. The windshield defroster
or rear window defogger turn on if it is cold outside.
If the vehicle has heated seats, they also turn on. See
Heated and Ventilated Seats on page 1-6for additional
information. Normal operation of the climate control
system returns after the ignition is turned to ON/RUN.
SeeDual Climate Control System on page 3-24.
Laws in some communities may restrict the use of
remote starters. For example, some laws may require a
person using remote start to have the vehicle in view
when doing so. Check local regulations for any
requirements on remote starting of vehicles.
Do not use the remote start feature if the vehicle is low
on fuel. The vehicle may run out of fuel.
If this vehicle has the remote start feature, the RKE
transmitter functions have an increased range of
operation. However, the range may be less while
the vehicle is running.There are other conditions which can affect the
performance of the transmitter, seeRemote Keyless
Entry (RKE) System on page 2-6orKeyless Access
System on page 2-9for additional information.
/(Remote Start):Press and release the lock button
and then press and hold this button to use the remote
start feature.
To start the vehicle using the remote start feature:
1. Aim the transmitter at the vehicle.
2. Press and release the transmitter’s lock button,
then immediately press and hold the transmitter’s
remote start button until the turn signal lights ash or
if the vehicle’s lights are not visible, press and hold
the remote start button for at least four seconds.
The vehicle’s doors lock. Pressing the remote start
button again after the vehicle has started turns off
the ignition.
When the vehicle starts, the parking lamps turn on
and remain on while the vehicle is running.
3. If it is the rst remote start since the vehicle has
been driven, repeat these steps, while the engine is
still running, to extend the engine running time by
10 minutes. Remote start can be extended one time.
After entering the vehicle during a remote start, press
the brake pedal and turn the ignition to ON/RUN to drive
the vehicle.
2-16

If the vehicle is left running it automatically shuts off
after 10 minutes unless a time extension has been done.
To manually shut off a remote start:
Aim the transmitter at the vehicle and press
the remote start button until the parking lamps
turn off.
Turn on the hazard warning ashers.
Turn the ignition switch on and then off.
The remote vehicle start feature provides two separate
starts, each with 10 minutes of engine running, or it
provides one start with 10 minutes of engine running
that may be extended 10 more minutes. If the transmitter
lock button is pressed and released and then the remote
start button is pressed and held again before the rst
10 minutes of engine running time has expired,
10 minutes are added to the remaining minutes.
For example, if the lock button and then the remote
start buttons are pressed again after ve minutes of
the engine run time, 10 minutes are added and you
now have 15 minutes of engine running. The added
ten minutes are considered a second remote vehicle
start.
Once two remote starts or a single start with a time
extension have been used, the vehicle must be started
with the keyless access ignition control knob before
the remote start feature can be used again.The remote start feature does not operate if any of the
following occur:
The ignition is in any position other than LOCK/OFF.
A keyless access transmitter is inside the vehicle.
The hood is open.
There is an emission control system malfunction.
The remote start feature is not enabled.
See “Remote Start” underDIC Vehicle
Customization on page 3-69.
The engine turns off during a remote vehicle start if the
coolant temperature gets too high, or the oil pressure
is too low.
This vehicle was shipped from the factory with the
remote vehicle start system enabled. The system may
be disabled through the Driver Information Center (DIC).
See “Remote Start” underDIC Vehicle Customization
on page 3-69for additional information.
SeeEngine Exhaust on page 2-48for important safety
information when using remote start in a closed garage.
2-17

Doors and Locks
Door Locks
{CAUTION:
Unlocked doors can be dangerous.
Passengers, especially children, can easily
open the doors and fall out of a moving
vehicle. When a door is locked, the handle
will not open it. You increase the chance
of being thrown out of the vehicle in a
crash if the doors are not locked. So, wear
safety belts properly and lock the doors
whenever you drive.
Young children who get into unlocked
vehicles may be unable to get out. A child
can be overcome by extreme heat and can
suffer permanent injuries or even death
from heat stroke. Always lock your vehicle
whenever you leave it.
Outsiders can easily enter through an
unlocked door when you slow down or
stop your vehicle. Locking your doors can
help prevent this from happening.There are several ways to lock and unlock your vehicle.
From the inside, use the manual lock levers located
on the door panels near the windows.
Push down on the manual lock lever to lock the door.
To unlock the door, pull up on the lever.
If the windows are down and the doors are locked, do
not reach in to manually unlock the vehicle because you
will set off the alarm.
From the outside, use the key, or press the lock or
unlock button on the Remote Keyless Entry (RKE)
transmitter. SeeRemote Keyless Entry (RKE) System
Operation on page 2-7for more information.
On vehicles with the Remote Keyless Access system,
the door unlocks by pulling the door handle when
you have the transmitter with you. SeeKeyless Access
System Operation on page 2-10for more information.
2-18

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.
K(Unlock):Press to unlock the doors.
Q(Lock):Remove the key from the ignition and press
to lock the doors.
Delayed Locking
With this feature, you can delay the actual locking of the
doors.
When the power door lock switch 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 again or the lock
button on the RKE transmitter 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 RKE transmitter.
SeeDIC Vehicle Customization on page 3-69for more
information.
2-19

Programmable Automatic Door
Locks
If your vehicle has an automatic transmission, the
vehicle is programmed so that the doors will lock
automatically when all doors are closed, the ignition
is on, and the shift lever is moved out of PARK (P).
The doors will automatically unlock when 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
automatically unlock when the ignition is turned off and
the key is removed from the ignition.
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 Customization on
page 3-69.
Rear Door Security Locks
Your vehicle has rear door security locks. These
prevent passengers from opening the rear doors from
the inside.
The rear door security
locks are located on the
inside edge of each rear
door. The rear doors must
be open to access them.
The label showing lock and
unlock positions is located
near the lock.
To set the locks, do the following:
1. Insert the key into the security lock slot and turn it
so the slot is in the horizontal position.
2. Close the door.Lock Label shown
2-20

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
(RKE) or Keyless Access System transmitter, if
the vehicle has one, the power door lock switch,
or the rear door manual lock.
2. 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 the key into the security lock slot and turn it
so the slot is in the vertical position.
Lockout Protection
If the power door lock switch is pressed when the key
is in the ignition and a door is open, all the doors will lock
and only the driver’s door will unlock. If you close the
doors, they can be locked by using the Remote Keyless
Entry (RKE) 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 RKE transmitter or by pressing the power
lock switch a second time.
On vehicles with a Keyless Access System, the system
can be programmed to alert you when all the doors
are closed and a transmitter has been left inside of the
vehicle. SeeDIC Vehicle Customization on page 3-69
for more information.
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.
If you have air outlets on or under the
instrument panel, open them all the way.
SeeEngine Exhaust on page 2-48.
2-21

Trunk Lock Release
The remote trunk release
button is located on the
lower portion of the
driver’s door.
To use the remote trunk release, the shift lever must
be in PARK (P) or NEUTRAL (N) for a vehicle with
an automatic transmission. The shift lever must be
in NEUTRAL, with the parking brake set for a vehicle
with a manual transmission.
Press the button to open the trunk. You can also
press the button with the trunk symbol on the Remote
Keyless Entry (RKE) transmitter to open the trunk.
On vehicles with a Keyless Access System, squeeze
the trunk release button located on the rear of the trunk
lid above the license plate, as long as you have your
transmitter with you. Entry occurs when the buttonis being pressed and the vehicle recognizes the
transmitter. The vehicle must be in PARK (P) and
the valet mode turned off.
If your vehicle is ever without power, the trunk area
can still be manually accessed by using one of
the following procedures.
On vehicles with a rear seat pass-through door:
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” for more information.
3. Pull forward on the trunk release handle to open
the trunk lid.
On vehicles with a split folding rear seat:
1. Fold down the rear seatback. SeeSplit Folding
Rear Seat on page 1-11for 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.
2-22