2003 CADILLAC CTS Owners Manual

2-21
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 flash.
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, see ªFuses and Circuit Breakersº in the
Index. 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
Your vehicle is equipped
with a passive
theft
-deterrent system.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.

2-22
This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this
device must accept any interference received, including
interference that may cause undesired operation of
the device.
Changes or modifications to this system by other than an
authorized service facility could void authorization to
use this equipment.
The system works when you turn the key to ON (II).
The key uses a transponder that matches an immobilizer
control unit in your vehicle. The correct key will start
the vehicle.
Your vehicle has a special key that works with the
theft
-deterrent system. There is a transponder in the key
head. If the key is ever damaged, you may not be able to
start your vehicle.When trying to start the vehicle, if the engine does
not start and the security light comes on, the key may
have a damaged transponder. Turn the ignition off and
try again.
If the engine still does not start, and the key appears to
be undamaged, try another ignition key. At this time,
you may also want to check the fuse. See ªFuses and
Circuit Breakersº in the Index. If the engine still does
not start with the other key, your vehicle needs service.
If your vehicle does start, the first key may be faulty.
See your dealer who can service the theft
-deterrent
system to have a new key made.
It is possible for the theft
-deterrent system decoder
to learn the transponder value of a new or replacement
key. Up to 10 additional keys may be programmed for
the vehicle. This procedure is for learning additional
keys only.

2-23
Canadian Owners: If you lose or damage your keys,
only a GM dealer can service the theft
-deterrent system
to have new keys made. To program additional keys you
will require two current driver's keys. You must add a
step to the following procedure. After Step 2, repeat
Steps 1 and 2 with the second current driver's key.
Then continue with Step 3.
To program a new key do the following:
1. Verify that the new key has PK3+ stamped on it.
2. Insert the current driver's key in the ignition and
start the engine. If the engine will not start see your
dealer for service.
3. After the engine has started, turn the key to OFF, and
remove the key.
4. Insert the key to be programmed and turn it to ON
within ten seconds of removing the previous key.5. The security light will turn off once the key has been
programmed. It may not be apparent that the security
light went on due to how quickly the key is
programmed.
6. Repeat the Steps 1 through 4 if additional keys are to
be programmed.
If you are ever driving and the security light comes on
and stays on, you will be able to restart your engine if
you turn it off. The theft
-deterrent system, however, is
not working properly and must be serviced by your
dealer. Your vehicle is not protected by the
theft
-deterrent system at this time.
In an emergency, contact Cadillac Roadside Assistance.
See ªRoadside Assistanceº in the Index.

2-24
New Vehicle ªBreak-Inº
NOTICE:
Your vehicle doesn't need an elaborate
ªbreak
-in.º But it will perform better in the
long run if you follow these guidelines for the
first 500 miles (805 km):

Don't drive at any one speed -- fast or slow.

Do not exceed 70 mph (113 km/h).

Don't make full
-throttle starts, also refrain
from using the full throttle while driving.
If these procedures are not followed your engine,
axle or other parts could be damaged.

Avoid making hard stops for the first
200 miles (322 km) or so. During this time
your new brake linings aren't yet broken
in. Hard stops with new linings can mean
premature wear and earlier replacement.
Follow this breaking
-in guideline every
time you get new brake linings.
Don't tow a trailer during break-in. See ªTowing
a Trailerº in the Index for more information.
Ignition Positions
With the key in the ignition switch, you can turn the key
to four different positions.

2-25
NOTICE:
If your key seems stuck in OFF and you can't
turn it, be sure you are using the correct key; if
so, is it all the way in? If it is, then turn the
steering wheel left and right while you turn the
key hard. Turn the key only with your hand.
Using a tool to force it could break the key or the
ignition switch. If none of this works, then your
vehicle needs service.
A (OFF): This is the only position in which you can
insert or remove the key. This position locks the
ignition, steering wheel and transmission. It's a
theft
-deterrent feature.
B (ACCESSORY): This position allows you to use
things like the radio and the windshield wipers when the
engine is off. This position will allow you to turn off the
engine, but still turn the steering wheel.
C (ON): This position is for driving. If your vehicle has
an automatic transmission and you turn off the engine, the
transmission will lock. If you need to shift the transmission
out of PARK (P), the ignition key has to be in ON.
D (START): This position starts the engine.
Key Release Button (Manual Transmission)
The key cannot be
removed from the ignition
of manual transmission
vehicle unless the key
release button is used.
To remove the key, do the following:
1. Turn the key to ACCESSORY.
2. Press the button and turn the key to OFF.
Do not hold the button in while turning the
key to OFF.
3. Pull the key straight out of the ignition switch.

2-26
Steering Column Ignition Lock Release
(Automatic Transmission Only)
If your vehicle has a dead battery or a battery with low
voltage, you can still release the ignition lock and
remove the key. Use the following procedure to release
the shift lever:
1. Locate the plastic screw head on the underside of the
plastic cover for the steering column.
2. Insert a flat, thin object into the slot and turn it
until the plastic piece detaches from the steering
column cover.
3. Insert a narrow, pointed object into the hole in the
steering column cover and press the spring.
4. Then, turn the ignition switch to OFF and remove
the key.

2-27
Retained Accessory Power (RAP)
The following accessories on your vehicle may be used
for up to 10 minutes after the ignition key is turned from
ON to OFF:

Radio

Power Windows

Audio Steering Wheel Controls (if programmed)

Sunroof (Option)
Power to these accessories stops after 10 minutes or
if a door is opened. If you want power for another
10 minutes, close all the doors and turn the ignition
key to ON and then back to OFF.
Starting Your Engine
Automatic Transmission
Move your shift lever to PARK (P) or NEUTRAL (N).
Your engine won't start in any other position
-- that's a
safety feature. To restart when you're already moving,
use NEUTRAL (N) only.
NOTICE:
Don't try to shift to PARK (P) if your vehicle
is moving. If you do, you could damage the
transmission. Shift to PARK (P) only when
your vehicle is stopped.

2-28
Manual Transmission
The gear selector should be in neutral and the parking
brake engaged. Hold the clutch pedal to the floor and
start the engine. Your vehicle won't start if the clutch
pedal is not all the way down
-- that's a safety feature.
1. With your foot off the accelerator pedal, turn your
ignition key to START. Then, just let go of the key;
the engine starts automatically. The idle speed will
go down as your engine gets warm.
2. If your engine won't start (or starts but then stops),
it could be flooded with too much gasoline. Try
pushing your accelerator pedal all the way to the
floor and holding it there as you turn the key to
START. If the vehicle starts briefly but then stops
again, do the same thing.
NOTICE:
Your engine is designed to work with the
electronics in your vehicle. If you add electrical
parts or accessories, you could change the way
the engine operates. Before adding electrical
equipment, check with your dealer. If you don't,
your engine might not perform properly.
Engine Coolant Heater (If Equipped)
In very cold weather, 0
F (-18
C) or colder, the engine
coolant heater can help. You'll get easier starting and
better fuel economy during engine warm
-up. Usually,
the coolant heater should be plugged in a minimum of
four hours prior to starting your vehicle. At temperatures
above 32
F (0
C), use of the coolant heater is
not required.