2008 CADILLAC XLR ECU

The main components of the instrument panel are the following:
A. Head-Up Display (HUD) Controls/Instrument Panel
Brightness Controls. SeeHead-Up Display (HUD)
on page 3-33orInstrument Panel Brightness
on page 3-32.
B. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 3-8.Cruise
Control. SeeCruise Control on page 3-12. Exterior
Lamps Control. SeeExterior Lamps on page 3-28.
Fog Lamps. SeeFog Lamps on page 3-30.
C. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-44.
D. Windshield Wiper/Washer Lever. See “Windshield
Wipers” underTurn Signal/Multifunction Lever
on page 3-8.
E. Driver Information Center (DIC) Controls/Interior
Lamps. SeeDIC Operation and Displays on
page 3-60.
F. Air Outlets. SeeOutlet Adjustment on page 3-42.
G. Hazard Warning Flasher Button. SeeHazard
Warning Flashers on page 3-6.
H. Voice Commands/Audio Controls. SeeOnStar
®
System on page 2-41orAudio Steering Wheel
Controls on page 3-82.
I. Adaptive Cruise Controls (If Equipped).
See “Adaptive Cruise Control (ACC)” under
Turn Signal/Multifunction Lever on page 3-8.J. Power Tilt Wheel and Telescopic Steering Button.
SeePower Tilt Wheel and Telescopic Steering
Column on page 3-7.
K. Horn. SeeHorn on page 3-6.
L. Audio Steering Wheel Controls. SeeAudio Steering
Wheel Controls on page 3-82.
M. Ignition Switch. SeeIgnition Positions on page 2-23.
N. Shift Lever. SeeAutomatic Transmission Operation
on page 2-26.
O. Traction Control Button. SeeTraction Control
System (TCS) on page 5-6.
P. Retractable Hardtop Button. SeeRetractable
Hardtop on page 2-54.
Q. Cupholders. SeeCupholder(s) on page 2-52.
R. Cigarette Lighter. SeeAshtray(s) and Cigarette
Lighter on page 3-37.
S. Climate Controls. SeeDual Climate Control System
on page 3-38.
T. Audio/Navigation System. SeeNavigation System
Overview on page 4-2.
U. Glove Box. SeeGlove Box on page 2-52.
3-5

If the word ON or the on symbol is lit on the passenger
airbag status indicator, it means that the right front
passenger’s frontal airbag and seat-mounted side impact
airbag are enabled (may inate).
{CAUTION:
If the on indicator comes on when you have
a rear-facing child restraint installed in the
right front passenger’s seat, it means that the
passenger sensing system has not turned
off the passenger’s frontal airbag and
seat-mounted side impact airbag (if equipped).
A child in a rear-facing child restraint can be
seriously injured or killed if the right front
passenger’s airbag inates. This is because
the back of the rear-facing child restraint would
be very close to the inating airbag. Do not use
a rear-facing child restraint in the right front
passenger’s seat if the airbag is turned on.
{CAUTION:
Even though the passenger sensing system is
designed to turn off the right front passenger’s
frontal airbag and seat-mounted side impact
airbag (if equipped) if the system detects a
rear-facing child restraint, no system is fail-safe,
and no one can guarantee that an airbag will not
deploy under some unusual circumstance, even
though it is turned off. We recommend that
rear-facing child restraints be secured in a rear
seat, even if the airbag is or airbags are off.
If the word OFF or the off symbol is lit on the passenger
airbag status indicator, it means that the passenger
sensing system has turned off the right front passenger’s
frontal airbag and seat-mounted side impact airbag.
SeePassenger Sensing System on page 1-45for more
on this, including important safety information.
3-48

Security Light
For information regarding
this light and the vehicle’s
security system, see
Theft-Deterrent System
on page 2-19.
Fog Lamp Light
The fog lamp light will
come on when the fog
lamps are in use.
The light will go out when the fog lamps are turned off.
SeeFog Lamps on page 3-30for more information.
Lights On Reminder
This light comes
on whenever the
headlamps are on.
SeeHorn on page 3-6for more information.
Highbeam On Light
This light comes on
when the high-beam
headlamps are in use.
SeeHeadlamp High/Low-Beam Changer on page 3-9
for more information.
United States Only
3-58

If the driver remains unbuckled when the ignition is
on and the vehicle is in motion, the reminder will
be repeated. If the driver’s safety belt is already buckled,
this message and chime will not come on.
This message is an additional reminder to the Safety
Belt Reminder Light in the instrument panel cluster.
SeeSafety Belt Reminders on page 3-46for more
information.
CHANGE OIL NOW
This message displays when the life of the engine oil
has expired. SeeScheduled Maintenance on page 7-4.
After an oil change, the Oil Life Indicator must be
reset. SeeOil Life Indicator on page 3-80andEngine
Oil Life System on page 6-20.
CHARGE SYSTEM FAULT
This message displays when a problem with the
charging system has been detected. Have your vehicle
serviced by your dealer/retailer.
CHECK GAS CAP
This message displays if the fuel cap has not been
fully tightened. Check the fuel cap to make sure that
it is on properly.
CLEAN RADAR CRUISE
If your vehicle has this feature, this message displays
when the Adaptive Cruise Control (ACC) system is
disabled because the radar is blocked and cannot
detect vehicles in your path. It may also activate during
heavy rain or due to road spray. To clean the system,
seeAdaptive Cruise Control on page 3-15.
CLOSE CARGO DIVIDER
This message displays if the cargo divider is not in
place. Open the trunk and make sure the cargo divider
is secure and no objects are on the divider. See
Rear Storage Area on page 2-53for more information.
COOLANT OVER TEMP (Temperature)
This message displays when the engine coolant
temperature is too hot. Stop and allow your vehicle to
idle in PARK (P) until it cools down and the message
is removed. Do not increase engine speed above
a normal idle. If it does not cool down, turn off the
engine and have your vehicle serviced by your
dealer/retailer before driving it again. Severe engine
damage can result from an overheated engine.
SeeEngine Overheating on page 6-27.
3-64

SVC (Service) TIRE MONITOR
This message displays if a part on the Tire Pressure
Monitor System (TPMS) is not working properly. The tire
pressure light also ashes and then remains on during
the same ignition cycle. SeeTire Pressure Light on
page 3-53. Several conditions may cause this message
to appear. SeeTire Pressure Monitor Operation on
page 6-63for more information. If the warning comes on
and stays on, there may be a problem with the TPMS.
See your dealer/retailer.
TOO COLD TO MOVE TOP
This message displays when the retractable hardtop
button is pressed and the hardtop pump motor
temperature is below−4°F (−20°C). Wait for the hardtop
pump motor to warm up before using the retractable
hardtop.
TOP INOP (Inoperative) – VALET ON
This message displays when the retractable hardtop
button is pressed and the valet switch is on. Turn off
the valet switch before using the retractable hardtop.
TOP INOP (Inoperative) OUT OF PARK
This message displays if the retractable hardtop
button is pressed while the vehicle is not in PARK (P).
TOP MOTOR OVER TEMP
(Temperature)
This message displays when the retractable hardtop
button is pressed and the hardtop pump motor
temperature is over 221°F (105°C). Wait for the hardtop
pump motor to cool down before using the retractable
hardtop.
TOP NOT SECURE
This message displays when the retractable hardtop
button is released before the top open or close operation
is complete. Press and hold the retractable hardtop
button to fully open or close the top.
TRAC (Traction) SYSTEM ACTIVE
This message displays when the Traction Control System
(TCS) is limiting wheel spin. Slippery road conditions may
exist if this message is displayed, so adjust your driving
accordingly. This message stays on for a few seconds
after the TCS stops limited wheel spin.
TRAC (Traction)/STABILITRAK OFF
This message displays when both the Traction Control
System (TCS) and the StabiliTrak®System are off.
This message will remain until the systems are turned
on again.
3-73

No CAT Info:No category information is available.
The system is working properly.
CAT Not Found:There are no channels available for
the selected category. The system is working properly.
No Information:No text or informational messages
are available. The system is working properly.
XM Theftlocked:The XM™ receiver may have
previously been in another vehicle. For security
purposes, XM™ receivers cannot be swapped between
vehicles. If this message is received after having
your vehicle serviced, check with your dealer/retailer.
XM Radio ID:If tuned to channel 0, this message
will alternate with the XM™ Radio eight digit radio
ID label. This label is needed to activate the service.
Unknown:If this message is received when tuned
to channel 0, there may be a receiver fault. Consult with
your dealer/retailer.
Check XM Receiver:If this message does not clear
within a short period of time, the receiver may have
a fault. Consult with your dealer/retailer.Six-Disc CD Changer
With the compact disc changer, you can play up to
six normal size discs continuously.
When the radio is turned on, the changer will begin
checking for discs. This will continue for up to one and
a half minutes, depending on the number of discs
loaded. You may hear noise, but this is normal.
The CD changer is initializing.
Press the CD hard key to access the six-disc CD
changer screen. You can also use the system’s DVD
player for single CD play once the map DVD is removed.
SeeCD/DVD Player on page 4-70for more information.
If no CD is loaded in the CD/DVD Player and you
press the CD hard key, the message “No CD Loaded”
will appear on the display.
4-67

{CAUTION:
Coasting downhill in NEUTRAL (N) or with the
ignition off is dangerous. The brakes will have
to do all the work of slowing down and they
could get so hot that they would not work well.
You would then have poor braking or even
none going down a hill. You could crash.
Always have the engine running and your
vehicle in gear when you go downhill.
Stay in your own lane. Do not swing wide or cut
across the center of the road. Drive at speeds
that let you stay in your own lane.
Top of hills: Be alert — something could be in your
lane (stalled car, accident).
Pay attention to special road signs (falling rocks
area, winding roads, long grades, passing or
no-passing zones) and take appropriate action.
Winter Driving
Here are some tips for winter driving:
Have your vehicle in good shape for winter.
You might want to put winter emergency supplies
in your vehicle.
Include an ice scraper, a small brush or broom, a
supply of windshield washer uid, a rag, some winter
outer clothing, a small shovel, a ashlight, a red
cloth, and a couple of reective warning triangles.
And, if you will be driving under severe conditions,
include a small bag of sand, a piece of old carpet,
or a couple of burlap bags to help provide traction.
Be sure you properly secure these items in your
vehicle.
Also seeTires on page 6-52.
5-17

If you put things inside your vehicle — like
suitcases, tools, packages, or anything
else — they will go as fast as the vehicle goes.
If you have to stop or turn quickly, or if there is a
crash, they will keep going.
{CAUTION:
Things you put inside your vehicle can
strike and injure people in a sudden stop
or turn, or in a crash.
Put things in the rear area of your
vehicle. Try to spread the weight
evenly.
Never stack heavier things, like
suitcases, inside the vehicle so that
some of them are above the tops of
the seats.
Do not leave an unsecured child
restraint in your vehicle.
When you carry something inside the
vehicle, secure it whenever you can.
Towing
Towing Your Vehicle
Consult your dealer/retailer or a professional towing
service if you need to have your disabled vehicle towed.
SeeRoadside Service on page 8-7.
Recreational Vehicle Towing
Notice:Dolly towing or dinghy towing your
vehicle may cause damage because of reduced
ground clearance. Always put your vehicle on
a atbed truck.
Your vehicle was neither designed nor intended to be
towed with any of its wheels on the ground. If your
vehicle must be towed, see “Towing Your Vehicle”
earlier in this section.
Towing a Trailer
Your XLR is neither designed nor intended to tow
a trailer.
5-27