2004 CADILLAC XLR Owners Manual

ACC may detect a vehicle that is not in your lane and
apply the brakes.
ACC may occasionally provide a driver alert and/or
braking that you consider unnecessary. ACC could
respond to signs, guardrails and other stationary objects
when entering or exiting a curve. This is normal
operation. Your vehicle does not need service.
Highway Exit Ramps
{CAUTION:
ACC may lose track of the vehicle ahead and
accelerate up to your set speed while entering
or on highway exit ramps. You could be
startled by this acceleration and even lose
control of the vehicle. So, disengage ACC
before entering a highway exit ramp. Do not
use ACC on exit ramps.
3-19

Other Vehicle Lane Changes
If another vehicle enters the same lane as you, ACC will
not detect the vehicle until it is completely in the lane.
Be ready to take action and apply the brakes yourself.
Using ACC on Hills
How well ACC will work on hills depends on your
speed, vehicle load, traffic conditions and the steepness
of the hills. ACC may not detect a vehicle in your
lane while driving on hills. When going up steep hills,
you may want to use the accelerator pedal to maintain
your speed. When going downhill, you may have to
brake to keep your speed down. Applying the brake
disengages ACC. Many drivers ®nd this to be too much
trouble and do not use ACC on steep hills.
3-20

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

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 front turn signal lamps
come on 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 transmission is not in PARK (P).
When DRL are on, only the front turn signal lamps 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 will not be lit up either.
When it is dark enough outside, the front turn signal
lamps will turn off and normal low-beam headlamps will
turn on.When it is bright enough outside, the regular lamps will
go off, and the front turn signal lamps 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 3-25.
If it is dark enough outside and the exterior lamp control
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.
Turning the exterior lamp control to off a second time,
or turning on the headlamps will remove the
HEADLAMPS SUGGESTED message. If the parking
lamps or the fog lamps were turned on instead,
the HEADLAMPS SUGGESTED message will continue
to be displayed.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
3-23

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

Twilight Sentinelžalso provides exterior illumination as
you leave the vehicle. If Twilight Sentinelžhas turned
on the lamps when you turn off the ignition, your lamps
will remain on until:
·The exterior lamp switch is moved from OFF to the
parking lamp position, or
·a delay time that you select has elapsed.
See
Driver Information Center (DIC) on page 3-55to
select the delay time that you want. You can also select
no delay time.
If you turn off the ignition with the exterior lamp switch
in the parking lamp or headlamp position, the Twilight
Sentinel
ždelay will not occur. The lamps will turn off as
soon as the switch is turned off.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Exterior Lighting Battery Saver
If the manual parking lamps or headlamps have been
left on, the exterior lamps will turn off as soon as
the ignition is turned off or RAP is active. This protects
against draining the battery in case you have
accidentally left the headlamps or parking lamps on.
The battery saver does not work if the headlamps are
turned on after the ignition switch is turned to OFF.
If you need to leave the lamps on, use the exterior lamp
control to turn the lamps back on.
Interior Lamps
Instrument Panel Brightness
The button for this feature is located on the instrument
panel to the left of the steering column.
+
!- (Brightness):Press this button to change the
brightness of the instrument panel lights.
Press the DIMMER button until PANEL DIMMING
appears on the Driver Information Center (DIC). Then
use the brightness button to adjust the instrument panel
brightness. Press the top of the button to brighten the
lights or the bottom of the button to dim the lights.
See
Head-Up Display (HUD) on page 3-27for more
information.
Be sure not to have the brightness turned all the way
down with the lamps on during the day. Your DIC
may not be visible.
3-25

Courtesy Lamps
When any door or the trunk lid is opened, the interior
lamps will go on unless it is bright outside.
You can also turn on the courtesy lamps by pressing
the interior lamp button on the right side of the
instrument panel cluster.
Exit/Entry Lighting
With entry lighting, the interior lamps will come on when
entering the vehicle. The interior lamps will come on
for about 20 seconds when the engine is turned off or a
door is ajar.
You can turn exit and entry lighting off by quickly turning
the headlamps on and off or by quickly turning the
courtesy lamps on and off.
Reading Lamps
Your inside rearview mirror includes two reading lamps.
The lamps will go on when a door is opened. When
the doors are closed, each lamp can be turned on
individually by pressing the button for that lamp.
Battery Run-Down Protection
Your vehicle has a feature to help prevent you from
draining the battery in case the underhood lamp, vanity
mirror lamps, cargo lamps, reading lamps, console
or glove box lamps are accidentally left on or in case
something is plugged into the accessory power outlet or
cigarette lighter. If you leave any of these lamps on,
they will automatically time-out after about 20 minutes.
To reset it, all of the above lamps must be turned
off or the ignition key must be in ON.
3-26