2009 CADILLAC DTS key battery

Remote Keyless Entry (RKE)
System
The Remote Keyless Entry (RKE) system operates on a
radio frequency subject to Federal Communications
Commission (FCC) Rules and with Industry Canada.
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 of the device.
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.
If there is a decrease in the RKE operating range,
try this:
Check the distance. The transmitter may be too far
from the vehicle. Stand closer during rainy or
snowy weather.
Check the location. Other vehicles or objects may
be blocking the signal. Take a few steps to the
left or right, hold the transmitter higher, and
try again.
Check the transmitter’s battery. See “Battery
Replacement” later in this section.
If the transmitter is still not working correctly,
see your dealer/retailer or a qualied technician for
service.
2-4

V(Remote Trunk Release):Press and hold for
about one second to unlock the trunk. The transmission
must be in P (Park).
L(Vehicle Locator/Panic Alarm):Press and release
to locate the vehicle. The turn signal lamps ash and
the horn sounds three times.
Press and hold
Lfor more than two seconds to
activate the panic alarm. The turn signal lamps ash
and the horn sounds repeatedly for 30 seconds.
The alarm turns off when the ignition is moved to
ON/RUN or
Lis pressed again. The ignition must
be in LOCK/OFF for the panic alarm to work.
The vehicle comes with two transmitters.
Each transmitter will have a number on top of it,
“1” or “2”. These numbers correspond to the driver
of the vehicle. For example, the memory seat position
for driver 1 will be recalled when using the transmitter
labeled “1”, if enabled through the DIC. SeeMemory
Seat, Mirrors and Steering Wheel on page 1-6and
DIC Vehicle Customization on page 3-86for more
information.
Programming Transmitters to the
Vehicle
Only RKE transmitters programmed to the vehicle will
work. If a transmitter is lost or stolen, a replacement
can be purchased and programmed through your
dealer/retailer. When the replacement transmitter is
programmed to the vehicle, all remaining transmitters
must also be programmed. Any lost or stolen
transmitters no longer work once the new transmitter
is programmed. Each vehicle can have up to
eight transmitters programmed to it. See RELEARN
REMOTE KEY underDIC Operation and Displays
on page 3-68.
Battery Replacement
Replace the battery if the REPLACE BATTERY
IN REMOTE KEY message displays in the DIC.
See “REPLACE BATTERY IN REMOTE KEY” under
DIC Warnings and Messages on page 3-73for additional
information.
Notice:When replacing the battery, do not touch
any of the circuitry on the transmitter. Static
from your body could damage the transmitter.
2-6

To replace the battery:
1. Separate the transmitter with a at, thin object
inserted into the notch, located above the
metal base.
2. Remove the old battery. Do not use a metal object.
3. Insert the new battery, positive side facing up.
Replace with a CR2032 or equivalent battery.
4. Reassemble the transmitter.
Remote Vehicle Start
The remote vehicle starting feature allows you to start
the engine from outside of the vehicle. It also starts
up the vehicle’s automatic climate control system.
When the remote start system is active, the climate
control system will heat and cool the inside of the
vehicle according to the previous settings of the
system before turning the vehicle off. The rear window
defogger will be turned on by the climate control
system when it is cold outside. If the vehicle has heated
seats, they will also turn on when it is cold outside.
SeeHeated and Cooled Seats on page 1-5for additional
information. Cooled seats are not activated during a
remote start. Normal operation of the climate control
system will return after the key is turned to ON/RUN.
SeeDual Climate Control System on page 3-40.
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 your vehicle is
low on fuel. Your vehicle may run out of fuel.
2-7

Ignition Positions
The ignition switch has four different positions:
In order to shift out of P (Park), ignition must be in the
ON/RUN or ACC/ACCESSORY and the brake pedal
must be applied.
Notice:Using a tool to force the key to turn in
the ignition could cause damage to the switch or
break the key. Use the correct key, make sure it is all
the way in, and turn it only with your hand. If the key
cannot be turned by hand, see your dealer/retailer.A (LOCK/OFF):This is the only position in which the
ignition key can be inserted or removed. This position
locks the ignition and transmission and steering column.
The steering can bind with the wheels turned off
center. If this happens, move the steering wheel from
right to left while turning the key to ACC/ACCESSORY.
If this doesn’t work, the vehicle needs service.
B (ACC/ACCESSORY):This position lets the radio
and windshield wipers operate while the engine is off.
To use ACC/ACCESSORY, turn the key clockwise.
C (ON/RUN):This position is where the key returns to
after the vehicle is started. This position displays some
of the warning and indicator lights.
The battery could be drained if you leave the key in
the ACC/ACCESSORY or ON/RUN position with the
engine off. You may not be able to start the vehicle if the
battery is allowed to drain for an extended period of time.
D (START):This position starts the engine.
A warning chime will sound and the Driver Information
Center (DIC) will display DRIVER DOOR OPEN
when the driver door is opened if the ignition is in
LOCK/OFF, ACC/ACCESSORY and the key is in the
ignition. SeeDIC Warnings and Messages on page 3-73
for more information.
2-25

The vehicle has a Computer-Controlled Cranking
System. This feature assists in starting the
engine and protects components. If the ignition
key is turned to the START position, and then
released when the engine begins cranking, the
engine will continue cranking for a few seconds or
until the vehicle starts. If the engine does not
start and the key is held in START, cranking will be
stopped after 15 seconds to prevent cranking
motor damage. To prevent gear damage, this
system also prevents cranking if the engine
is already running. Engine cranking can be
stopped by turning the ignition switch to the
ACC/ACCESSORY or LOCK/OFF position.
Notice:Cranking the engine for long periods of
time, by returning the key to the START position
immediately after cranking has ended, can overheat
and damage the cranking motor, and drain the
battery. Wait at least 15 seconds between each try,
to let the cranking motor cool down.2. If the engine does not start after 5-10 seconds,
especially in very cold weather (below 0°F or
−18°C), it could be ooded with too much gasoline.
Try pushing the accelerator pedal all the way to
the oor and holding it there as you hold the
key in START for up to a maximum of 15 seconds.
Wait at least 15 seconds between each try, to
allow the cranking motor to cool down. When the
engine starts, let go of the key and accelerator.
If the vehicle starts briey but then stops again,
repeat these steps. This clears the extra gasoline
from the engine. Do not race the engine
immediately after starting it. Operate the engine
and transmission gently until the oil warms up and
lubricates all moving parts.
Notice:The engine is designed to work with the
electronics in the vehicle. If you add electrical parts
or accessories, you could change the way the
engine operates. Before adding electrical equipment,
check with your dealer/retailer. If you do not, the
engine might not perform properly. Any resulting
damage would not be covered by the vehicle
warranty.
2-27

The shift lock is always functional except in the case
of a an uncharged or low voltage (less than 9 volt)
battery.
If the vehicle has an uncharged battery or a battery with
low voltage, try charging or jump starting the battery.
SeeJump Starting on page 5-38.
Console Shift
If the console shift cannot be moved out of P (Park)
1. Apply the regular brakes.
2. Turn the ignition to ON/RUN or ACC/ACCESSORY
position. SeeIgnition Positions on page 2-25for
more information.
3. Push the shift lever all the way into P (Park).
4. Then, shift into the desired gear.
If you still cannot move the shift lever from P (Park),
consult your dealer/retailer or a professional towing
service.
Column Shift
If the column shift cannot be moved out of P (Park)
1. Apply the regular brakes.
2. Turn the ignition key to the ON/RUN or
ACC/ACCESSORY position. SeeIgnition
Positions on page 2-25for more information.
3. Shift out of the P (Park) position to the
N (Neutral) position.
4. Move the column shift to the desired gear.
If you still cannot move the shift lever from P (Park),
consult your dealer/retailer or a professional towing
service.
Parking Over Things That Burn
{CAUTION:
Things that can burn could touch hot exhaust
parts under the vehicle and ignite. Do not park
over papers, leaves, dry grass, or other things that
can burn.
2-35

Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
might begin programs to inspect the emission control
equipment on the vehicle. Failure to pass this inspection
could prevent getting a vehicle registration.
Here are some things to know to help the vehicle pass
an inspection:
The vehicle will not pass this inspection if the check
engine light is on with the engine running, or if the
key is in ON/RUN and the light is not on.
The vehicle will not pass this inspection if the
OBD II (on-board diagnostic) system determines
that critical emission control systems have not been
completely diagnosed by the system. The vehicle
would be considered not ready for inspection.
This can happen if the battery has recently
been replaced or if the battery has run down.
The diagnostic system is designed to evaluate
critical emission control systems during normal
driving. This can take several days of routine driving.
If this has been done and the vehicle still does
not pass the inspection for lack of OBD II system
readiness, your dealer/retailer can prepare the
vehicle for inspection.
Oil Pressure Light
{CAUTION:
Do not keep driving if the oil pressure is low.
The engine can become so hot that it catches re.
Someone could be burned. Check the oil as soon
as possible and have the vehicle serviced.
Notice:Lack of proper engine oil maintenance
can damage the engine. The repairs would not be
covered by the vehicle warranty. Always follow
the maintenance schedule in this manual for
changing engine oil.
3-64

RADAR CRUISE NOT READY
This message displays when the Adaptive Cruise
Control (ACC) system will not activate due to a
temporary condition. Your vehicle does not require
service. If this message appears when you attempt to
activate the system, continue driving for several minutes
and then try activating the system again. SeeAdaptive
Cruise Control on page 3-19for more information.
RAINSENSE WIPERS ACTIVE
If your vehicle has Rainsense™ II wipers, this message
displays while this feature is active. SeeRainsense™
II Wipers on page 3-14for more information.
REMOTE KEY LEARNING ACTIVE
This message displays while you are matching a
Remote Keyless Entry (RKE) transmitter to your vehicle.
See “Matching Transmitter(s) to Your Vehicle” under
Remote Keyless Entry (RKE) System Operation
on page 2-5andDIC Operation and Displays on
page 3-68for more information.
REPLACE BATTERY IN REMOTE KEY
This message displays when the battery in the Remote
Keyless Entry (RKE) transmitter needs to be replaced.
To replace the battery, see “Battery Replacement” under
Remote Keyless Entry (RKE) System Operation on
page 2-5.
RIGHT REAR DOOR OPEN
This symbol appears with
this message.
This message displays when the passenger side rear
door is not closed completely. Make sure that the door is
closed completely.
SERVICE AIR BAG
This message displays when there is a problem with
the airbag system. Have your vehicle serviced by your
dealer/retailer immediately. SeeAirbag Readiness
Light on page 3-54for more information.
3-79