light CADILLAC XLR 2009 1.G Workshop Manual

Tire Pressure Light
For vehicles with the tire
pressure light, it comes on
briey when the engine
is started. If it does not,
have the vehicle serviced
by your dealer/retailer.
If the system is working
normally the indicator light
then goes off.
This light also comes on when one or more of the tires
is signicantly underinated.
A tire pressure message in the Driver Information
Center (DIC) can accompany the light. SeeDIC
Warnings and Messages on page 3-60for more
information.
Stop and check the tires as soon as it is safe to do so.
If underinated, inate the tire to the proper pressure.
SeeTires on page 6-46for more information.
If a problem is detected with the Tire Pressure Monitor
System, this light ashes for approximately 60 seconds
and then stays on for the remainder of the ignition
cycle. SeeTire Pressure Monitor System on page 6-55
for more information.
Malfunction Indicator Lamp
Check Engine Light
A computer system called OBD II (On-Board
Diagnostics-Second Generation) monitors operation of
the fuel, ignition, and emission control systems. It makes
sure that emissions are at acceptable levels for the
life of the vehicle, helping to produce a cleaner
environment.
This comes on briey
while starting the engine.
If it does not come on,
have the vehicle serviced
by your dealer/retailer.
If the check engine light comes on and stays on, while
the engine is running, this indicates that there is an
OBD II problem and service is required.
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Malfunctions often are indicated by the system before
any problem is apparent. Being aware of the light
can prevent more serious damage to the vehicle.
This system assists the service technician in correctly
diagnosing any malfunction.
Notice:If the vehicle is continually driven with this
light on, after a while, the emission controls
might not work as well, the vehicle’s fuel economy
might not be as good, and the engine might not
run as smoothly. This could lead to costly repairs
that might not be covered by the vehicle warranty.
Notice:Modications made to the engine,
transmission, exhaust, intake, or fuel system
of the vehicle or the replacement of the original
tires with other than those of the same Tire
Performance Criteria (TPC) can affect the vehicle’s
emission controls and can cause this light to come
on. Modications to these systems could lead to
costly repairs not covered by the vehicle warranty.
This could also result in a failure to pass a required
Emission Inspection/Maintenance test. See
Accessories and Modifications on page 6-3.This light comes on during a malfunction in one of
two ways:
Light Flashing:A misre condition has been detected.
A misre increases vehicle emissions and could
damage the emission control system on the vehicle.
Diagnosis and service might be required.
The following can prevent more serious damage to
the vehicle:
Reduce vehicle speed.
Avoid hard accelerations.
Avoid steep uphill grades.
If the light continues to ash, when it is safe to do so,
stop the vehicle. Find a safe place to park the vehicle.
Turn the key off, wait at least 10 seconds, and restart
the engine. If the light is still ashing, follow the previous
steps and see your dealer/retailer for service as soon
as possible.
3-51

Light On Steady:An emission control system
malfunction has been detected on the vehicle.
Diagnosis and service might be required.
An emission system malfunction might be corrected by
doing the following:
Make sure the fuel cap is fully installed. SeeFilling
the Tank on page 6-8. The diagnostic system can
determine if the fuel cap has been left off or
improperly installed. A loose or missing fuel cap
allows fuel to evaporate into the atmosphere.
A few driving trips with the cap properly installed
should turn the light off.
If the vehicle has been driven through a deep
puddle of water, the vehicle’s electrical system
might be wet. The condition is usually corrected
when the electrical system dries out. A few driving
trips should turn the light off.
Make sure to fuel the vehicle with quality fuel.
Poor fuel quality causes the engine not to run
as efficiently as designed and may cause:
stalling after start-up, stalling when the vehicle
is changed into gear, misring, hesitation on
acceleration, or stumbling on acceleration.
These conditions might go away once the engine is
warmed up.
If one or more of these conditions occurs, change
the fuel brand used. It will require at least one
full tank of the proper fuel to turn the light off.
SeeGasoline Octane on page 6-5.
If none of the above have made the light turn off, your
dealer/retailer can check the vehicle. The dealer/retailer
has the proper test equipment and diagnostic tools to
x any mechanical or electrical problems that might have
developed.
3-52

Emissions Inspection and
Maintenance Programs
Some state/provincial and local governments have or
might begin programs to inspect the emission control
equipment on the vehicle. Failure to pass this inspection
could prevent getting a vehicle registration.
Here are some things to know to help the vehicle pass
an inspection:
The vehicle will not pass this inspection if the check
engine light is on with the engine running.
To perform a check engine light bulb check with the
keyless ignition, make sure the transmitter fob is in
the passenger compartment. SeeIgnition Positions
on page 2-24. Press the bottom of the Acc. button on
the instrument panel and hold the button down for
ve seconds. The instrument panel, including the
check engine light, will light up and the ignition will be
on, but the engine will not start — press the bottom
of the Acc. button only briey, less than ve seconds,
the accessory power mode will be turned on, but not
the ignition. After the bulb check, press and release
the Acc. button again to turn the ignition off and avoid
draining the vehicle’s battery.
The vehicle will not pass this inspection if the
OBD II (on-board diagnostic) system determines
that critical emission control systems have not
been completely diagnosed by the system.
The vehicle would be considered not ready for
inspection. This can happen if the battery has
recently been replaced or if the battery has run down.
The diagnostic system is designed to evaluate critical
emission control systems during normal driving.
This can take several days of routine driving. If this
has been done and the vehicle still does not pass the
inspection for lack of OBD II system readiness, your
dealer/retailer can prepare the vehicle for inspection.
3-53

Security Light
For information regarding
this light and the vehicle’s
security system, see
Theft-Deterrent System
on page 2-20.
Fog Lamp Light
The fog lamp light comes
on when the fog lamps are
in use.
The light goes out when the fog lamps are turned off.
SeeFog Lamps on page 3-28for 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 3-8
for more information.
United States Only
3-55

Fuel Gage
The fuel gage indicates
about how much fuel is left
when the ignition is
turned on.
An arrow on the fuel gage indicates the side of the
vehicle the fuel door is on.
When the needle approaches the low fuel symbol, LOW
FUEL will appear on the Driver Information Center (DIC)
display. At this time, there is still have a little fuel left,
but the vehicle’s fuel tank should be lled soon.Press RESET to acknowledge a DIC message(s).
Pressing RESET will also turn off a DIC message but
the LOW FUEL message will come on again in
10 minutes if fuel has not been added to the vehicle.
Here are ve things that some owners ask about.
All these things are normal and do not indicate that
anything is wrong with the fuel gage.
At the gas station, the gas pump shuts off before
the gage reads the full symbol.
It takes more (or less) fuel to ll up than the gage
reads. For example, the gage reads half full, but it
took more (or less) than half of the tank’s
capacity to ll it.
The gage pointer may move while cornering,
braking or speeding up.
The gage may not indicate the tank is empty when
the ignition is turned off.
The gage reading may change slightly within the
rst several minutes after starting the vehicle.
3-56

DIC Warnings and Messages
These messages appear if there is a problem detected
in one of the 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, Japanese, and Spanish.
ABS (Antilock Brake System) ACTIVE
This message displays when the Antilock Brake
System (ABS) is adjusting brake pressure to help avoid
a braking skid.
Slippery road conditions may exist if this message
displays, so adjust your driving accordingly. The
message may stay on for a few seconds after the
system stops adjusting brake pressure.
BUCKLE PASSENGER
This message reminds you to buckle the passenger
safety belt.
This message displays and a chime sounds when
the ignition is on, the driver safety belt is buckled,
the passenger safety belt is unbuckled with thepassenger airbag enabled, and the vehicle is in
motion. You should have the passenger buckle their
safety belt.
The reminder will be repeated if the ignition is on, the
vehicle is in motion, the driver is buckled and the
passenger is still unbuckled, and the passenger airbag
is enabled. If the passenger safety belt is already
buckled, this message and chime will not come on.
BUCKLE SEAT BELT
This message reminds you to buckle the driver
safety belt.
This message displays and a chime sounds when the
ignition is on, the driver safety belt is unbuckled, and the
vehicle is in motion. You should buckle the safety belt.
If the driver remains unbuckled when the ignition is
on and the vehicle is in motion, the reminder will
be repeated. If the driver 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 3-44for more
information.
3-60

DRIVER NO. X (1 OR 2)
This message displays when the vehicle is started or
when there is a change of driver. The message
shows which driver is activating the personalization
feature. It will only stay on for ve seconds.
ENGINE HOT, STOP ENGINE
This message displays when the engine has overheated.
Stop and turn the engine off immediately to avoid
severe engine damage. SeeEngine Overheating on
page 6-27. A multiple chime also sounds when
this message displays.
ENGINE PROTECTION REDUCE
ENGINE RPM
If this message displays, the control system has
determined that continued operation at the existing
engine speed may lead to engine overheating. Lower
the engine speed by upshifting the transmission or drive
at a lower speed.
HEADLAMPS SUGGESTED
This message displays if it is dark enough outside and
the headlamps and Twilight Sentinel®controls are
off. This message informs the driver that turning on theexterior lamps is recommended. It has become dark
enough outside to require the headlamps and/or other
exterior lamps. This message also displays if the
optional Rainsense™ wiping feature is on and the
Twilight Sentinel is off.
HIGH TRANS (Transmission) TEMP
(Temperature)
This message displays when the transmission uid in
the vehicle is too hot. Stop and allow the vehicle to idle
until it cools down or until this message is removed.
HIGH VOLTAGE
This message displays when the electrical charging
system is overcharging. To avoid being stranded, have
the electrical system checked by your dealer/retailer.
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 information
button. The normal range is 11.5 to 15.5 volts when the
engine is running.
3-62

SERVICE ABS (Antilock Brake System)
If this message displays 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 message
stays on, or comes back on again while you are driving,
the vehicle is in need of service. See your dealer/retailer.
If the SERVICE ABS message is being displayed, the
Traction Control System (TCS) and StabiliTrak
®System
will also be disabled. The Driver Information Center
will scroll three messages: SERVICE ABS, SERVICE
TRACTION SYS, and SERVICE STABILITRAK, and the
antilock brake system and traction control warning
lights on the instrument panel cluster will be illuminated.
SeeAntilock Brake System (ABS) Warning Light on
page 3-48andStabiliTrak
®/Traction Control System
(TCS) Warning Light on page 3-48. The driver can
acknowledge these messages by pressing the RESET
button three times. When the service message is
displayed, the computer controlled systems will not
assist the driver and you should have the system
repaired by your dealer/retailer as soon as possible.
Adjust your driving accordingly.
SERVICE AFS (Adaptive Forward
Lighting System) LAMPS
This message displays when the Adaptive Forward
Lighting System (AFS) is disabled and needs service.
See your dealer/retailer. SeeAdaptive Forward Lighting
System on page 3-28for more information.
SERVICE ELECT (Electrical) SYSTEM
This message displays if an electrical problem has
occurred within the Powertrain Control Module (PCM).
Have the vehicle serviced by your dealer/retailer.
SERVICE FUEL SYSTEM
This message displays when the Powertrain Control
Module (PCM) has detected a problem within the fuel
system. Have the vehicle serviced by your dealer/retailer.
This message will also be displayed when the cluster is
not getting fuel information from the PCM.
SERVICE RADAR CRUISE
If the vehicle has this feature, this message displays
when the Adaptive Cruise Control (ACC) system
is disabled and needs service. See your dealer/retailer.
3-67

STABILITRAK READY
If this message displays and a chime sounds, the
system has completed the functional check of the
StabiliTrak
®System.
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 3-50. Several conditions may cause this message
to appear. SeeTire Pressure Monitor Operation on
page 6-57for 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 P (Park).
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.
3-69