2003 CADILLAC DEVILLE change time

Lamps on Reminder
A warning chime will sound if the exterior lamp control
is left on in either the headlamp or parking lamp position
and the driver's door is opened with the ignition off.
Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day. DRL
can be helpful in many different driving conditions, but
they can be especially helpful in the short periods after
dawn and before sunset. Fully functional daytime running
lamps are required on all vehicles ®rst sold in Canada.
The DRL system will make the low-beam headlamps
come on at reduced intensity when the following
conditions are met:
·It is still daylight and the ignition is on,
·the exterior lamp control is in the off position and
·the transaxle is not in PARK (P).
When DRL are on, only your high-beam headlamps at
reduced brightness will be on. No other exterior lamps
such as the parking lamps, taillamps, etc. will be on when
the DRL are being used. Your instrument panel won't be
lit up either.
When the Twilight Sentinel
žlever is on and it's dark
enough outside, the high-beam headlamps at reduced
intensity will turn off and normal low-beam headlamp
operation will occur.When the Twilight Sentinel
žlever is on and it's bright
enough outside, the regular lamps will go off, and
the high-beam headlamps at reduced brightness will
take over. If you start your vehicle in a dark garage, the
automatic headlamp system will come on immediately.
Once you leave the garage, it will take approximately
one minute for the automatic headlamp system to
change to DRL if it is light outside. During that delay,
your instrument panel cluster may not be as bright
as usual. Make sure your instrument panel brightness
knob is in the full bright position. See ªInstrument Panel
Brightnessº under
Interior Lamps on page 3-19.
If it's dark enough outside and the Twilight
Sentinel
žlever is off, a HEADLAMPS SUGGESTED
message will display on the Driver's Information Center
(DIC). This message informs the driver that turning
on the exterior lamps is recommended even though the
DRL are still illuminated.
Turning on the Twilight Sentinel
žor the headlamps will
deactivate the DRL and remove the HEADLAMPS
SUGGESTED message. If the parking lamps or the fog
lamps were turned on instead, the DRL will still deactivate
and the HEADLAMPS SUGGESTED message will
continue to be displayed.
To idle your vehicle with the DRL off at night, turn off the
Twilight Sentinel
žand shift the transaxle into PARK (P).
Placing your vehicle in PARK (P) disables the DRL.
The DRL will stay off until you shift out of PARK (P).
3-16

Climate Controls
Dual Climate Control System
With this system you can control the heating, cooling
and ventilation for your vehicle.
Automatic Operation
AUTO (Automatic):When this button is pressed and
the temperature is set, the system will automatically
control the inside temperature, the air delivery mode and
the fan speed. AUTO will appear on the display.
1. Press the AUTO button.
2. Adjust the temperature to a comfortable setting
between 70ÉF (21ÉC) and 80ÉF (27ÉC).
Choosing the coldest or warmest temperature
setting will not cause the system to heat or cool any
faster. If you set the system at the warmesttemperature setting, the system will remain in
manual mode at that temperature and it will not go
into automatic mode.
In cold weather, the system will start at reduced fan
speeds to avoid blowing cold air into your vehicle
until warmer air is available. The system will
start out blowing air at the ¯oor but may change
modes automatically as the vehicle warms up
to maintain the chosen temperature setting. The
length of time needed for warm up will depend on
the outside temperature and the length of time
that has elapsed since your vehicle was last driven.
3. Wait for the system to regulate. This may take from
10 to 30 minutes. Then adjust the temperature, if
necessary.
Do not cover the solar sensor located in the center of
the instrument panel, near the windshield. For more
information on the solar sensor, seeSensorslater in this
section.
When your vehicle is ®rst started, the display will show
the driver's temperature setting, the fan speed, the
air delivery mode and the outside temperature.
When the ENG/MET (English/metric) button on the
Driver Information Center (DIC) is pressed, the display
will show readings in Fahrenheit or Celsius. Use the
ENG/MET button to toggle between them.
3-29

Climate Controls Personalization
If your vehicle is equipped with this feature, you
can store and recall climate control settings for the
temperature, the fan speed and the direction of
the air¯ow.
Memory buttons 1 and 2 are located on the driver's door
panel and correspond to the numbers 1 or 2 found on
the back of each remote keyless entry transmitter.
To recall the climate control settings last stored on your
transmitter, press the unlock button on your remote
keyless entry transmitter and put the ignition in
ACCESSORY or ON. The settings will be recalled.
To change the stored settings, do the following:
1. Select the desired temperature, fan speed and
air¯ow mode. If desired, a separate temperature
setting may also be selected for the front seat
passenger. For information on how to do this, see
Dual Climate Control System on page 3-29.2. Locate memory buttons 1 and 2 on the driver's
door panel.
3. Press the memory button on the door panel that
corresponds to the number on the back of the
transmitter you are programming, until you hear two
beeps. The beeps con®rm that your selection has
been saved and can now be recalled. For more
information on the memory feature, see
Memory
Seat, Mirrors and Steering Wheel on page 2-55.
Follow these steps each time you want to change the
stored settings.
3-39

·AVG MPH (Average Miles per Hour):This
message shows the average speed you have
traveled at since the last time you reset the value.
To reset the value, press the INFO button to
display AVG MPH then press and hold the INFO
RESET button until 0.0 AVG MPH is displayed.
·TIMER:This feature is like a stopwatch, in that you
can clock the time it takes to get from one point to
another.
To operate, press the INFO button to display
TIMER. Each of the ®elds for the hours, minutes
and seconds are two numeric digits.
Once TIMER 00:00:00 is displayed, press the
ON/OFF button to start the timing feature. Press
the ON/OFF button again to stop it. If you will
be starting and stopping your vehicle, during a trip
for instance, the TIMER feature will automatically
start timing where it left off when you last stopped.
To reset it, press and hold the INFO RESET
button until the display reads TIMER 00:00:00.
Press the INFO button to exit from the TIMER
display.
·ENGINE OIL LIFE:Press the INFO button to
display ENGINE OIL LIFE, then press and hold the
INFO RESET button until 100% ENGINE OIL
LIFE is displayed. (This only needs to be reset after
you have had the oil changed.)
·TRANSMISSION FLUID LIFE:Under normal
conditions, the rate of deterioration of the
transmission ¯uid is slow. See
Part A: Scheduled
Maintenance Services on page 6-4for proper
¯uid and change intervals. To reset the transmission
¯uid life, press the INFO button to display TRANS
FLUID LIFE, then press and hold the INFO
RESET button until 100% TRANS FLUID LIFE is
displayed. (This only needs to be reset after
you have had the ¯uid changed.)
ON/OFF:Pressing this button turns the Programming
and Personalization Features on and off. (FEATURE
PROGRAMMING must be displayed on the DIC to begin
actual programming.) This button also starts and
stops the timer.
MILES RANGE:(Analog Cluster Only) This message
shows about how many miles you can drive without
re®lling your fuel tank. Once the range drops below
40 miles (64 km) remaining, the display will show LOW.
3-58

CHANGE ENGINE OIL ± 82:This means that the life
of the engine oil has expired and it should be changed
within 200 miles. After an oil change, the Oil Life
Indicator must be reset. See
Oil Life Indicator on
page 3-79. SeeEngine Oil on page 5-13.
CHANGE TRANS FLUID ± 47:This message will
appear when it is time to change the transaxle ¯uid. See
Part A: Scheduled Maintenance Services on page 6-4for the proper ¯uid and change intervals.
CHECK BRAKE FLUID ± 37:This message will
display if the ignition is in ON to inform the driver that
the brake ¯uid level is low. Have the brake system
serviced by a technician as soon as possible. See
Brake
System Warning and Parking Brake Indicator Light on
page 3-47
.
CHECK COOLANT LEVEL ± 2:This message will
appear when there is a low level of engine coolant. Have
the cooling system serviced by a technician as soon
as possible. See
Engine Coolant on page 5-24.
CHECK FUEL GAGE ± 50:(Analog Cluster) This
message will appear when the fuel supply is less than
5 gallons (18.9 L) and the display is turned off. A
single chime will also sound when this message is
displayed.
CHECK GAS CAP ± 61:This message will appear if
the gas cap has not been fully tightened. You should
recheck your gas cap to ensure that it's on properly.CHECK OIL LEVEL ± 36:For correct operation of the
low oil sensing system, your vehicle should be on a
level surface. A false CHECK OIL LEVEL message may
appear if the vehicle is parked on a grade. The oil
level sensing system does not check for actual oil level
if the engine has been off for a short period of time,
and the oil level is never checked while the engine is
running. If the CHECK OIL LEVEL message appears,
and your vehicle has been parked on level ground
with the engine off for at least 30 minutes, the oil level
should be checked by observing the oil dipstick. Prior to
checking the oil level, be sure the engine has been
off for a few minutes and your vehicle is on a level
surface. Then check the dipstick and add oil if
necessary. See
Engine Oil on page 5-13.
CHECK TIRE PRESSURE ± 144:This message is
displayed when the Tire Pressure Monitor (TPM) system
detects a low or high tire pressure condition in one or
more of the road tires. By pressing the INFO button up or
down, the DIC display will show which tire or tires do not
have the correct in¯ation pressure. A ªLOW TIREº
condition exists when the tire's air pressure is under
25 psi (172 kPa) and a ªHIGH TIREº condition exists
when the tire's air pressure is above 38 psi (262 kPa).
The system will display the air pressure, the tire location
(LF, RF, RR or LR) and if the air pressure is low or high.
The tire pressure information is available in English or
metric measurements. For example, a driver's side front
tire that is low may be shown as: 22 PSI LF TIRE LOW.
3-61

Trip Computer
Oil Life Indicator
This feature lets you know when to change the engine
oil. It's based on the engine oil temperatures and
your driving patterns.To see the display, press the INFO button several times
until ENGINE OIL LIFE appears. If you see 99%
ENGINE OIL LIFE, 99 percent of your current oil life
remains.
The DIC may display a CHANGE ENGINE OIL
message. For more information, see
Scheduled
Maintenance on page 6-4. If you see CHANGE ENGINE
OIL, it means the oil life is gone and you should
change the oil right away. The system doesn't check
how much oil you have, so you'll still have to check for
that. To see how, see
Engine Oil on page 5-13.
When the oil is changed, you'll need to reset the system.
See
Engine Oil on page 5-13. Always keep a written
record of the mileage and date when you changed
your oil.
3-79

1 PREV (Previous)/¦TUNE SEEK¥:Press this
pushbutton to seek to the previous track on the CD. If
playing the ®rst track of the CD, pressing the PREV
pushbutton will seek to the last track of the CD.
2 NEXT/
¦TUNE SEEK¥:Press this pushbutton to
seek to the next track on the CD. If playing last track of
the CD, pressing the NEXT pushbutton will seek to
the ®rst track of the CD.
3
{RW (Rewind)/{RW (Rewind):Press and hold
this pushbutton to reverse quickly through a track.
4FF
|(Fast Forward)/FF|(Fast Forward):Press
and hold this pushbutton to advance quickly through
a track.
5 DISC:Press this pushbutton to select the next disc in
the changer. Each time you press this button,
LOADING will appear on the display and the disc
number on the radio display will go to that of the next
available CD.6 RDM (Random):Press this pushbutton to hear the
tracks in random, rather than sequential, order. RDM will
appear on the display. Press the PREV or NEXT
pushbuttons while RDM is on the display to randomly
seek through discs. Press RDM again to turn off random
play. This feature may not be available on your radio.
SCAN:Press this button. You will hear the ®rst few
seconds of the ®rst track on each disc. The CD will mute
while scanning and SCAN will appear on the display.
Press this button again to stop scanning.
SOURCE:Press this button if you have a disc loaded
in the changer and the radio is on, to play a compact
disc. To return to playing the radio, press BAND.
Pressing source also switches between a tape or
compact disc if both are loaded.
EJECT:Slide the CD changer door all the way open.
Press the EJECT button and the magazine will eject.
3-102

The anti-lock system can change the brake pressure
faster than any driver could. The computer is
programmed to make the most of available tire and road
conditions. This can help you steer around the obstacle
while braking hard.
As you brake, your computer keeps receiving updates
on wheel speed and controls braking pressure
accordingly.Remember: Anti-lock doesn't change the time you need
to get your foot up to the brake pedal or always
decrease stopping distance. If you get too close to the
vehicle in front of you, you won't have time to apply
your brakes if that vehicle suddenly slows or stops.
Always leave enough room up ahead to stop, even
though you have anti-lock brakes.
Using Anti-Lock
Don't pump the brakes. Just hold the brake pedal down
®rmly and let anti-lock work for you. You may hear
the anti-lock pump or motor operate, and feel the brake
pedal pulsate, but this is normal.
Braking in Emergencies
With anti-lock, you can steer and brake at the same
time. In many emergencies, steering can help you more
than even the very best braking.
4-8