2009 CADILLAC XLR engine

Erasing Set Speed Memory
The set speed memory is erased when the Adaptive
Cruise Control switch or the ignition is turned off.
Other Messages
There are three messages that may appear on the DIC.
They are SERVICE RADAR CRUISE, CRUISE NOT
READY and CLEAN RADAR CRUISE. These messages
will only appear to indicate a problem with the Adaptive
Cruise Control. SeeDIC Warnings and Messages
on page 3-60for more information.
You may also see CRUISE SPEED LIMITED displayed
in the HUD. SeeHead-Up Display (HUD) on page 3-31
for 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, located on the driver side of the front fascia.Clean the surface with a 50/50 mixture of isopropyl
alcohol and water on a dampened cloth. After cleaning
the fascia lens, try to engage Adaptive Cruise Control.
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 tool into one of the small slots on the inboard
side of the lens and pop the lens out. Clean the surface
with a 50/50 mixture of isopropyl alcohol and water
on a dampened cloth. After cleaning the lens, set the
lens back in place and press until it snaps in place.
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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 to operate
the exterior lamps.
There are four positions:
O(Off):Turns off all lamps.
AUTO (Automatic):Sets the exterior lamps to
automatic mode. AUTO mode will turn the exterior
lamps on and off depending on how much light
is available outside the vehicle. Turning the band to
AUTO mode also enables the Adaptive Forward Lighting
system. SeeAdaptive Forward Lighting System on
page 3-28.To override AUTO mode, turn the control to off.
To reset to AUTO mode turn the control to exterior
lamps and then back to AUTO. Automatic mode will also
reset when your vehicle is turned off and then back
on again when the control is left in the AUTO position.
SeeTwilight Sentinel
®on page 3-29.
;(Parking Lamp):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 to ACC/ACCESSORY.
5(Headlamps):Turns on the headlamps, together
with the previously listed lamps and lights.
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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 Retained Accessory Power
(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.
Instrument Panel Brightness
The button for this feature is located on the instrument
panel to the left of the steering column.
+
!- (Brightness):Press 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 or bottom of the button to
brighten or dim the lights. SeeHead-Up Display (HUD)
on page 3-31for more information.Be sure not to have the brightness turned all the way
down with the lamps on during the day. The DIC
may not be visible.
Courtesy Lamps
When any door or the trunk lid is opened, the interior
lamps will go on unless it is bright outside.
Press the interior lamp button on the right side of the
instrument panel, to turn the courtesy lamps on or off.
Entry/Exit 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.
You can turn exit and entry lighting off by quickly turning
the courtesy lamps on and off.
Reading Lamps
The 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.
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To adjust the HUD so you can see it properly, do the
following:
1. Adjust the seat to a comfortable driving position.
If you change the seat position later, you may
have to re-adjust the HUD.
2. Start the engine and press the top or bottom of the
HUD button to center the HUD image in your view.
The HUD image can only be adjusted up and
down, not side-to-side.
3. Press the DIMMER button until the DIC reads
HUD DIMMING. Then use the brightness button
to adjust the desired intensity.
The brightness of the HUD image is determined by the
light conditions in the direction the vehicle is facing
and where you have the HUD set. If you are facing a
dark object or a heavily shaded area, the HUD may
anticipate that you are entering a dark area and may
begin to dim.
To turn off the HUD, press the brightness button down
until the image disappears.
Polarized sunglasses could make the HUD image
harder to see.
As light shines out from the HUD, it is possible for light
to shine back in. In rare occurrences, when the sun
is at a specic angle and position, the sun’s rays canshine back into the HUD. When this occurs, the display
device within the HUD will be temporarily illuminated.
The event will end when the vehicle’s angle to the
sun changes.
Clean the inside of the windshield as needed to remove
any dirt or lm that reduces the sharpness or clarity
of the HUD image.
To clean the HUD, spray household glass cleaner on a
soft, clean cloth. Wipe the HUD lens gently, then dry
it. Do not spray cleaner directly on the lens because the
cleaner could leak into the unit.
If the ignition is on and you cannot see the HUD image,
check to see if:
Something is covering the HUD unit.
The brightness is adjusted properly.
The HUD image is adjusted to the proper height.
Ambient light in the direction the vehicle is facing
is low.
A fuse is blown. SeeFuses and Circuit Breakers
on page 6-83.
Keep in mind that the windshield is part of the HUD
system. SeeWindshield Replacement on page 6-45.
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You can switch from English to metric units through the
Driver Information Center (DIC). SeeDIC Operation
and Displays on page 3-57for more information.
The air conditioning system removes moisture from the
air, so a small amount of water might drip under the
vehicle while idling or after turning off the engine.
This is normal.
Do not cover the solar sensor located in the center of
the instrument panel, near the windshield. For more
information on the solar sensor, see “Sensors” later in
this section.
Manual Operation
wPWRx(Power/Temperature):Press the PWR
button on the left side of the climate control panel to turn
the entire climate control system on or off. Press
worx
to increase or decrease the temperature inside the
vehicle.
Press the PWR button on the right side of the climate
control panel to turn the passenger climate control
system on or off. Press
worxto increase or decrease
the temperature for the passenger.If the passenger PWR button is off, the driver temperature
switch controls the temperature for the entire vehicle.
«9 ª(Fan Control):Press to increase or decrease
the fan speed. Pressing this switch cancels automatic
operation and places the system in manual mode.
Press AUTO to return to automatic operation.
If the airow seems low when the fan speed is at the
highest setting, the passenger compartment air lter
may need to be replaced. For more information,
seePassenger Compartment Air Filter on page 3-41
andScheduled Maintenance on page 7-4.
ªN«(Air Delivery Mode Control ):Press to
change the direction of the airow inside of the vehicle.
Changing the mode cancels automatic operation and
places the system in manual mode. Press the
AUTO button to return to automatic operation.
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Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog or frost from the rear window.
The rear window defogger only works when the engine
is running.
=(Rear Window Defogger):Press to turn the rear
window defogger on or off. Clear as much snow from the
rear window as possible.
The rear window defogger will turn off about 10 minutes
after the button is pressed when traveling less than
30 mph (48 km/h). If turned on again, the defogger
only runs for about ve minutes before turning off.
The defogger can also be turned off by turning off
the engine.
The heated outside rearview mirrors will heat to help
clear fog or frost from the surface of the mirrors
when the rear window defogger is on.
The rear window defogger and heated mirrors are
automatically disabled when the retractable hardtop
is moving or down.Notice:Do not use anything sharp on the inside of
the rear window. If you do, you could cut or damage
the warming grid, and the repairs would not be
covered by the vehicle warranty. Do not attach a
temporary vehicle license, tape, a decal or anything
similar to the defogger grid.((Heated/Cooled Seat):Press to turn the feature on.
It automatically turns off when the vehicle is turned
off. SeeHeated and Cooled Seats on page 1-3for
more information.
Sensors
There are several sensors on the vehicle that measure
the temperature and the sun’s effect on passenger
comfort.
The solar sensor is located on top of the instrument panel
near the windshield. It monitors the solar heat then uses
the information to maintain the selected temperature
when operating in AUTO mode by initiating needed
adjustments to the temperature, the fan speed and the air
delivery system. The system may also supply cooler air to
the side of the vehicle facing the sun. The recirculation
mode will also be activated, as necessary. Do not cover
the sensor or the system will not work properly.
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There is also a sensor located behind the front bumper.
This sensor reads the outside air temperature and
helps maintain the temperature inside the vehicle.
The outside temperature will be displayed in the
navigation system only when the engine is running.
Any cover on the front of the vehicle could give a false
reading of the temperature.
If the outside temperature goes up, the display
temperature will not change until:
The vehicle’s speed is above 15 mph (24 km/h)
for ve minutes.
The vehicle’s speed is above 32 mph (51 km/h)
for two and one-half minutes.
These delays prevent false readings. If the temperature
goes down, the outside temperature will be shown
when the vehicle is started. If it has been turned off for
less than three hours, the temperature will be recalled
from the previous vehicle operation.
There is also an inside temperature sensor located to
the left of the ignition button. The automatic climate
control system uses this sensor to receive information,
so if it is blocked or covered, the system will not
function properly.
Outlet Adjustment
Use the thumbwheel to open or close the outlets.
Operation Tips

Clear away any ice, snow or leaves from the air
inlets at the base of the windshield that may
block the ow of air into the vehicle.
Use of non-GM approved hood deectors may
adversely affect the performance of the system.
Keep the area around the base of the instrument
panel console and air path under the seats clear
of objects to help circulate the air inside of the
vehicle more effectively.
3-40

Passenger Compartment Air Filter
The passenger compartment air lter removes certain
particles from the air, including pollen and dust particles.
Reductions in airow, which may occur more often in
dusty areas, indicate that the lter may need to be
replaced early.
The lter should be replaced as part of the routine
scheduled maintenance. SeeScheduled Maintenance
on page 7-4for more information.
To check or replace the air lter, do the following:
1. With the hood open, unlatch and remove the
access panel.
The passenger compartment air lter and access
panel are located on the passenger side of the
engine compartment near the battery. SeeEngine
Compartment Overview on page 6-12for more
information on location.
2. Pull the old lter out of the housing.
3. Insert the new lter into the housing.
4. Reinstall the air lter access panel.
Warning Lights, Gages, and
Indicators
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause
an expensive repair or replacement. Paying attention
to the warning lights and gages could prevent injury.
Warning lights come on when there may be or is
a problem with one of the vehicle’s functions. Some
warning lights come on briey when the engine is started
to indicate they are working.
Gages can indicate when there may be or is a problem
with one of the vehicle’s functions. Often gages and
warning lights work together to indicate a problem with
the vehicle.
When one of the warning lights comes on and stays on
while driving, or when one of the gages shows there
may be a problem, check the section that explains
what to do. Follow this manual’s advice. Waiting to
do repairs can be costly and even dangerous.
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