2004 CADILLAC XLR brake

Disengaging ACC
To disengage ACC, apply the brake pedal or move the
ACC switch to off. ACC information on the HUD will
not display when ACC is not engaged.
Erasing Set Speed Memory
When you turn the ACC switch or the ignition off, your
ACC set speed memory is erased.
Other Messages
There are three messages that may appear in the
Driver Information Center (DIC). They are SERVICE
RADAR CRUISE, CRUISE NOT READY and CLEAN
RADAR CRUISE. These messages will only appear
to indicate a problem if ACC is active. See
DIC
Warnings and Messages on page 3-57for more
information.
You may also see CRUISE SPEED LIMITED displayed
in the HUD. See
Head-Up Display (HUD) on page 3-27for more information.
Cleaning the System
The radar can become blocked by snow, ice or dirt. If
so, you may need to turn off the engine and clean
the lens. Remember, do not use ACC in icy conditions,
or when visibility is low, such as in fog, rain or snow.
The lens is located on the driver's side of the front
fascia.
After cleaning the fascia lens, try to engage the ACC. If
this does not ®x the problem, you may have to
remove the fascia lens and clean the inside of the
fascia lens and radar lens.
To clean the inside of the fascia lens and radar lens,
insert a screwdriver or similar object into one of
the small slots on the inboard side of the lens and pop
the lens out. After cleaning the lens, set the lens
back in place and press until it snaps in.
3-21

Exterior Lamps
The exterior lamp control is located to the left of the
steering wheel on the multifunction lever.
O(Exterior Lamp Control):Turn the band with this
symbol on it to operate the exterior lamps.
The exterior lamp band has four positions:
O(Off):Turning the band to this position turns off all
lamps.
AUTO (Automatic):Turning the band to this position
sets the exterior lamps in automatic mode.
;(Parking Lamp):Turning the band to this position
turns on the parking lamps together with the following:
·Sidemarker Lamps
·Taillamps
·License Plate Lamps
·Instrument Panel Lights
The parking brake indicator light will come on and stay
on when the parking lamps are on with the engine
off and the ignition in ACCESSORY.
5(Headlamps):Turning the control to this position
turns on the headlamps, together with the previously
listed lamps and lights.
Wiper-Activated Headlamps
This feature activates the headlamps and parking lamps
after the windshield wipers have been in use for
approximately six seconds.
When the exterior lamp control has been turned off or is
in the parking lamp position and the wiper control is
on delay, low speed or high speed, the HEADLAMPS
SUGGESTED message will appear on the Driver
Information Center (DIC).
When the ignition is turned off, the wiper-activated
headlamps will immediately turn off.
3-22

Fog Lamps
If your vehicle has fog lamps, use them for better vision
in foggy or misty conditions.
The fog lamps control is located on the multifunction
lever next to the exterior lamp control.
-(Fog Lamps):Turning the band to this position will
turn on the fog lamps.
When you turn on the fog lamps, the fog lamp light on
the instrument panel cluster will come on to indicate that
the fog lamps and the parking lamps are on.
If you turn on the high-beam headlamps, the fog lamps
will turn off. They will turn back on again when you
switch to low-beam headlamps.
The ignition must be on for the fog lamps to operate.
Twilight Sentinelž
Twilight Sentinelžcan turn your lamps on and off for
you. A light sensor on top of the instrument panel makes
the Twilight Sentinel
žwork, so be sure it is not
covered.With Twilight Sentinel
žyou will see the following
happen:
·When it is dark enough outside, the front turn signal
lamps (DRL) will go off, and the headlamps and
parking lamps will come on. The other lamps
that come on with headlamps will also come on.
·When it is bright enough outside, the headlamps
will go off, and the front turn signal lamps (DRL)
will come on, as long as the exterior lamp switch is
in the OFF position.
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
control is in full bright position. See ªInstrument
Panel Brightness Controlº under
Interior Lamps on
page 3-25.
You can idle the vehicle with the lamps off, even when
it is dark outside. First set the parking brake while
the ignition is in OFF. Then start the vehicle. The lamps
will stay off until you release the parking brake.
3-24

How the System Works
URPA comes on automatically when the shift lever is
moved into REVERSE (R) and the vehicle speed is less
than 3 mph (5 km/h). When the system comes on,
the three lights on the display will illuminate to let you
know that the system is working. URPA senses
how close your vehicle is to an object. The distance is
determined by the four ultrasonic sensors located on the
rear bumper. When you shift into REVERSE (R) and
an object is detected, the following will occur in
sequence depending on the distance from the object:
·At 5 feet (1.5 m) a chime will sound and one
amber light will be lit;
·at 40 inches (1.0 m) both amber lights will be lit;
·at 20 inches (0.5 m) a continuous chime will
sound and all three lights (amber/amber/red) will be
lit; and
·at 1 foot (0.3 m) a continuous chime will sound and
all three lights (amber/amber/red) will ¯ash.
URPA can detect objects 3 inches (7.6 cm) and wider,
and at least 10 inches (25.4 cm) tall, but it cannot detect
objects that are above trunk level. In order for the
rear sensors to recognize an object, it must be within
operating range.If the URPA system is not functioning properly, the
display will ¯ash red, indicating that there is a problem.
The light will also ¯ash red while driving if a trailer is
attached to your vehicle, or a bicycle or object is on the
back of, or hanging out of your trunk. The light will
continue to ¯ash until the trailer or the object is
removed and your vehicle is driven forward at least
15 mph (25 km/h).
It may also ¯ash red if the ultrasonic sensors are not
kept clean. So be sure to keep your rear bumper free of
mud, dirt, snow, ice and slush or materials such as
paint or the system may not work properly. If after
cleaning the rear bumper and driving forward at least
15 mph (25 km/h), the display continues to ¯ash red, see
your dealer. For cleaning instructions, see
Cleaning
the Outside of Your Vehicle on page 5-78.
It may also ¯ash red if your vehicle is moving in
REVERSE (R) at a speed greater than 3 mph (5 km/h).
Other conditions that may affect system performance
include things like the vibrations from a jackhammer or
the compression of air brakes on a very large truck.
As always, drivers should use care when backing up a
vehicle. Always look behind you, being sure to check
for other vehicles, obstructions and blind spots.
3-31

Brake System Warning Light
Your vehicle's hydraulic brake system is divided into two
parts. If one part is not working, the other part can
still work and stop you. For good braking, though, you
need both parts working well.
This light should come on when you start the engine. If
it does not come on then, have it ®xed so it will be
ready to warn you if there is a problem.
If this warning light stays on after you start the engine,
the parking brake may still be set or there could be
a brake problem. Refer to
Parking Brake on page 2-26to see if it is set. If the parking brake is not set, have
your brake system inspected right away.If the light comes on while you are driving and you have
a LOW BRAKE FLUID message showing on the DIC,
pull off the road and stop carefully. You may notice that
the pedal is harder to push. Or, the pedal may go
closer to the ¯oor. It may take longer to stop. If the light
is still on, have the vehicle towed for service. See
Towing Your Vehicle on page 4-32.
{CAUTION:
Your brake system may not be working
properly if the brake system warning light is
on. Driving with the brake system warning light
on can lead to an accident. If the light is still
on after you have pulled off the road and
stopped carefully, have the vehicle towed for
service. United States
Canada
3-45

Anti-Lock Brake System
Warning Light
With the anti-lock brake
system, the light will come
on when your engine is
started and may stay on for
several seconds. That is
normal.
If the light stays on, turn the ignition off. Or, if the light
comes on when you are driving, stop as soon as
possible and turn the ignition off. Then start the engine
again to reset the system. If the light still stays on,
or comes on again while you are driving, your vehicle
needs service. If the regular brake system warning light
is not on, you still have brakes, but you do not have
anti-lock brakes. If the regular brake system warning
light is also on, you do not have anti-lock brakes
and there is a problem with your regular brakes. See
ªService ABSº under
DIC Warnings and Messages
on page 3-57.
The anti-lock brake system warning light will come on
brie¯y when you turn the ignition on. This is normal.
If the light does not come on then, have it ®xed so it will
be ready to warn you if there is a problem.
Traction Control System (TCS)
Warning Light
This light should come on
brie¯y as you start the
engine. If the light does not
come on then, have it
®xed so it will be ready to
warn you if there is a
problem.
The light will also come on while the Stabilitrak
žsystem
warms up and the STABILITRAK WARMING message
will be displayed in the Driver Information Center (DIC).
If it stays on, or comes on and the DIC shows a
SERVICE TRACTION SYS message when you are
driving, there is a problem with your TCS and your
vehicle needs service. When this light is on, the system
will not limit wheel spin. Adjust your driving accordingly.
If the driver turns off TCS by pressing the button on
the console, the TCS system light will come on and the
TRACTION SYSTEM-OFF message will show on
the DIC.
3-46

Once ELAPSED TIME 00:00:00 is displayed, press the
RESET button to start the timing feature. Press the
RESET button again to stop it. If you will be starting and
stopping your vehicle, during a trip for instance, the
ELAPSED TIME feature will automatically start timing
where it left off when you last stopped. To reset it, press
and hold the RESET button until the display reads
ELAPSED TIME 00:00:00. Press the information button
to exit from the ELAPSED TIME display.
FRONT Lxx Rxx PSI:This feature shows the tire
pressure for the front left and right tires.
REAR Lxx Rxx PSI:This feature shows the tire
pressure for the rear left and right tires.
OIL LIFE:This feature shows the estimated oil life
remaining. Press the information button to display OIL
LIFE, then press and hold the RESET button until
100% OIL LIFE is displayed. This only needs to be reset
after you have had the oil changed.
ENG/METRIC (English/Metric):This feature allows
you to switch the DIC displays between English
and Metric. Press the RESET button to switch the
display between English and Metric. There will be an
arrow next to the option that is selected.DIC Warnings and Messages
These messages will appear if there is a problem
sensed in one of your vehicle's systems. You must then
press RESET to clear the display screen for further
use. However, be sure to take any message that
appears on the display screen seriously and remember
that pressing the RESET button will only make the
message disappear, not the problem.
DIC messages can also be displayed in English,
French, German, Italian and Spanish.
ABS ACTIVE:When your anti-lock system is adjusting
brake pressure to help avoid a braking skid, the ABS
ACTIVE message will be displayed.
Slippery road conditions may exist if this message is
displayed, so adjust your driving accordingly. The
message may stay on for a few seconds after the
system stops adjusting brake pressure.
BATTERY SAVER ACTIVE:This message is displayed
when the vehicle has detected that the battery voltage
is dropping beyond a reasonable point. The battery
saver system will start reducing certain features of the
vehicle that you may not be able to notice. At the
point that features are disabled, this message is
displayed. It means that the vehicle is trying to save the
charge in the battery. Turn off unnecessary accessories
to allow the battery to recharge.
3-57

ENGINE PROTECTION REDUCE ENGINE RPM:If this
message appears, the control system has determined
that continued operation at the existing engine
speed may lead to engine overheating. Therefore, you
should lower the engine speed by upshifting the
transmission or drive at a lower speed.
HEADLAMPS SUGGESTED:If it is dark enough
outside and the headlamps and Twilight Sentinel
ž
controls are off, this message will display on the DIC.
This message informs the driver that turning on the
exterior lamps is recommended even though the DRL
are still illuminated. It has become dark enough outside
to require the headlamps and/or other exterior lamps.
This message will also appear if the optional
RainsenseŸ wiping feature is on and the Twilight
Sentinel
žis off.
HIGH TRANS TEMP:This message indicates that the
transaxle ¯uid in your vehicle is too hot. Stop and
allow your vehicle to idle until it cools down or until this
message is removed.
HIGH VOLTAGE:This message shows that the
electrical charging system is overcharging. To avoid
being stranded, have the electrical system checked by
your dealership. You can reduce the charging
overload by using the accessories. Turn on the lamps
and radio, set the climate control on AUTO and the
fan speed on HI, and turn the rear window defogger on.You can monitor battery voltage on the DIC by pressing
the INFO button. The normal range is 11.5 to 15.5 volts
when the engine is running.
HOT ENGINE±A/C OFF: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 A/C operation will automatically resume. 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.
ICE POSSIBLE:This message appears when the
outside air temperature is cold enough to create icy road
conditions.
LEFT DOOR AJAR:This message will display anytime
the vehicle engine is running, the transmission is not
in PARK (P) and the driver's door is open or ajar.
A chime will sound when the vehicle's speed is greater
than 3 mph (4.8 km/h).
LOW BRAKE FLUID:This message will display if the
vehicle is running to inform the driver that the brake
¯uid level is low. Have the brake system serviced by a
technician as soon as possible. See ªBrake Fluidº
under
Brakes on page 5-35.
3-59