2003 CADILLAC CTS heating

2-16
Trunk Lid
CAUTION:
It can be dangerous to drive with the trunk lid
open because carbon monoxide (CO) gas can
come into your vehicle. You can't 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 ªComfort Controlsº
in the Index.

If you have air outlets on or under the
instrument panel, open them all the way.
See ªEngine Exhaustº in the Index.
Remote Trunk Release Button
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.
When the trunk lid opens, a light inside the trunk
will come on. The light will go out when the trunk
lid is closed.

2-33
SECOND (2): This position gives you even more
power than THIRD (3). You can use it on very steep
hills, or in deep snow or mud. (If the shift lever is put
in SECOND (2), the transmission won't shift into
SECOND (2) until the vehicle is going slowly enough).
NOTICE:
If the vehicle's wheels can't turn, don't try to
drive. This might happen if you were stuck in
very deep sand or mud or were up against a solid
object. You could damage your transmission.
Also, if you stop when going uphill, don't hold
your vehicle there with only the accelerator
pedal. This could cause overheating and damage
the transmission. Use your brakes to hold your
vehicle in position on a hill.
Shift Lock Release
(Automatic Transmission Only)
If your vehicle has a dead battery or a battery with low
voltage, you can still shift the vehicle into PARK (P) and
remove the ignition key. Use the following procedure to
release the shift lever:
1. Pull up on the rear part of the leather boot that
surrounds the shift lever.
2. Fold the boot upward to expose the mechanism
beneath the shift lever.

2-67
Cigarette Lighter
NOTICE:
Don't hold a cigarette lighter in with your hand
while it is heating. If you do, it won't be able to
back away from the heating element when it's
ready. That can make it overheat, damaging the
lighter and the heating element.
The cigarette lighter is located next to the ashtray. The
vehicle does not have any cigarette lighters for the rear
seat passengers.
Press the lighter all the way in and release it. It will pop
back out by itself once the element has heated for use.
Cigarette lighters can be used to provide power to
accessories. See ªAccessory Power Outletsº in the
Index for 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 and a recording device. See
ªHomeLink
Transmitterº and ªTravel Note Recorderº
later in this section for 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.

2-91
Engine Coolant Temperature
Warning Light
This light tells you that your
engine has overheated.
This light will come on when you first start the vehicle
as a check to let you know that the light is working. It
will go out after a few seconds. If the light does not
come on, the bulb may be burned out. See your dealer
for assistance in changing the bulb.
If the light does not go out or if the light comes on and
stays on while you are driving, your vehicle may have a
problem with the cooling system. You should stop the
vehicle and turn off the engine as soon as possible to
avoid damage to the engine. A warning chime will
sound when this light is on, also.
See ªEngine Overheatingº in the Index.
Malfunction Indicator Lamp
(Check Engine Light)
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition and emission
control systems.
This system is called OBD II (On
-Board
Diagnostics
-Second Generation) and is intended to
assure that emissions are at acceptable levels for the life
of the vehicle, helping to produce a cleaner
environment. The CHECK ENGINE light comes on to
indicate that there is a problem and service is required.
Malfunctions often will be indicated by the system
before any problem is apparent. This may prevent more
serious damage to your vehicle. This system is also
designed to assist your service technician in correctly
diagnosing any malfunction.

2-111
Engine Coolant Hot -- Idle Engine
This symbol appears
with the Engine Coolant
Hot
-- Idle Engine message.
This message will appear when the engine coolant
temperature is too hot. Stop and allow the vehicle to idle
until it cools down.
NOTICE:
If the Engine Coolant Hot -- Idle Engine message
appears on the DIC display, stop the vehicle as
soon as possible. Do not increase the engine speed
above normal idling speed. Severe engine damage
can result from driving a vehicle with an
overheated engine. See ªEngine Overheatingº in
the Index for more information.
Engine Coolant Hot -- AC (Air Conditioning) Off
This symbol appears
with the Engine Hot
-- AC
Off message.
This message displays when the engine coolant becomes
hotter than the normal operating temperature. To avoid
added strain on a hot engine, the air conditioning
compressor is automatically turned off. When the
coolant temperature returns to normal, the air
conditioning compressor will turn back on. You can
continue to drive your vehicle.
If this message continues to appear, have the system
repaired as soon as possible to avoid compressor
damage.

2-112
Engine Overheated -- Stop Engine
This symbol appears
with the Engine
Overheated
-- Stop
Engine message.
This message will appear when the engine has
overheated. Stop the vehicle and turn the engine off
immediately to avoid severe engine damage. See
ªEngine Overheatingº in the Index. A chime will also
sound when this message is displayed.
NOTICE:
Severe engine damage can result from driving a
vehicle with an overheated engine. See ªEngine
Overheatingº in the Index for more information.
Engine Power Reduced
This symbol appears
with the Engine Power
Reduced message.
This message informs you that the vehicle is reducing
engine power because the transmission is being placed
in gear under conditions that may cause damage to the
vehicle's engine or transmission. This also can affect the
vehicle's ability to accelerate.

2-116
Right Rear Door Ajar
This symbol appears
with the Right Rear Door
Ajar message.
When this message appears on the display, the right rear
door it means that the passenger's side rear door was not
closed completely. You should check to make sure that
the door is closed completely.Service AC (Air Conditioning) SystemThis symbol appears
with the Service AC
System message.
This message appears when the electronic sensors that
control the air conditioning and heating systems are no
longer working. Have the climate control system
serviced if you notice a drop in heating and air
conditioning efficiency.

4-39 Making Turns
NOTICE:
Making very sharp turns while trailering could
cause the trailer to come in contact with the
vehicle. Your vehicle could be damaged. Avoid
making very sharp turns while trailering.
When you're turning with a trailer, make wider
turns than normal. Do this so your trailer won't
strike soft shoulders, curbs, road signs, trees or other
objects. Avoid jerky or sudden maneuvers. Signal well
in advance.
Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle may need a
different turn signal flasher and/or extra wiring. Check
with your dealer. The arrows on your instrument panel
will flash whenever you signal a turn or lane change.
Properly hooked up, the trailer lamps will also flash,
telling other drivers you're about to turn, change lanes
or stop.
When towing a trailer, the arrows on your instrument
panel will flash for turns even if the bulbs on the trailer
are burned out. Thus, you may think drivers behind you
are seeing your signal when they are not. It's important
to check occasionally to be sure the trailer bulbs are
still working.
Driving On Grades
Reduce speed and shift to a lower gear before you start
down a long or steep downgrade. If you don't shift
down, you might have to use your brakes so much that
they would get hot and no longer work well.
On a long uphill grade, shift down and reduce your
speed to around 45 mph (70 km/h) to reduce the
possibility of the engine and the transmission
overheating.