engine CADILLAC XLR 2005 1.G Service Manual

You may notice this as stalling after start-up, stalling
when you put the vehicle into gear, misring, hesitation
on acceleration, or stumbling on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the
light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
your dealer can check the vehicle. Your dealer has
the proper test equipment and diagnostic tools to x any
mechanical or electrical problems that may have
developed.
Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this inspection
could prevent you from getting a vehicle registration.
Here are some things you need to know to help your
vehicle pass an inspection:
Your vehicle will not pass this inspection if the CHECK
ENGINE light is on or not working properly.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 2-22. 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 — if you press the bottom of
the ACC button only briey, less than ve seconds, the
accessory mode will be turned on, but not the ignition.
After the bulb check, be sure to press and release
the ACC button again to turn the ignition off and avoid
draining the vehicle’s battery.
Your vehicle will not pass this inspection if the OBD
(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
you have recently replaced your battery or if your
battery has run down. The diagnostic system is
designed to evaluate critical emission control systems
during normal driving. This may take several days
of routine driving. If you have done this and your vehicle
still does not pass the inspection for lack of OBD
system readiness, your GM dealer can prepare the
vehicle for inspection.
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Engine Oil Pressure Gage
The engine oil pressure gage shows the engine oil
pressure in psi (pounds per square inch) or kPa
(kilopascals) when the engine is running.
Oil pressure should be 20 to 80 psi (140 to 550 kPa).
In certain situations such as long, extended idles on hot
days, it could read as low as 6 psi (40 kPa) and still
be considered normal. It may vary with engine speed,
outside temperature and oil viscosity. The Driver
Information Center (DIC) may display messages
regarding the oil condition. SeeDIC Warnings and
Messages on page 3-64andEngine Oil on page 6-13.
{CAUTION:
Do not keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches re. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice:Lack of proper engine oil maintenance may
damage the engine. The repairs would not be
covered by your warranty. Always follow the
maintenance schedule in this manual for changing
engine oil. United States
Canada
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ELAPSED TIME:This feature is like a stopwatch, in
that you can clock the time it takes to get from one point
to another.
To operate, press the information button to display
ELAPSED TIME. Each of the elds for the hours,
minutes and seconds are two numeric digits.
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. SeeEngine Oil
Life System on page 6-16for more information.
In addition to the engine oil life system monitoring oil
life, additional maintenance is recommended in the
Maintenance Schedule in this manual. SeeScheduled
Maintenance on page 7-4andEngine Oil on page 6-13
for more information.
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.
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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.CHANGE OIL NOW:This means that 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 3-77and
Engine Oil Life System on page 6-16.
CHARGE SYSTEM FAULT:This message will display
when a problem with the charging system has been
detected. Have your vehicle serviced by your GM dealer.
CHECK GAS CAP:This message will appear if the
gas cap has not been fully tightened. You should
recheck your gas cap to ensure that it is on properly.
CLEAN RADAR CRUISE:This message indicates the
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, see “Adaptive Cruise Control (ACC)” underTurn
Signal/Multifunction Lever on page 3-7.
CLOSE CARGO DIVIDER:This message indicates that
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. SeeRear Storage Area on page 2-44
for more information.
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COOLANT OVER TEMP:This message will appear
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 it serviced
by your GM dealer before driving it again. Severe
engine damage can result from an overheated engine.
SeeEngine Overheating on page 6-23.
CRUISE NOT READY:This message indicates that
ACC will not activate due to a temporary condition. Your
vehicle does not require service. If this message
appears when you attempt to activate the system,
continue driving for several minutes then try again to
activate the system.
DRIVER NO. X (1 OR 2):This message will be
displayed when the vehicle is started or when there is a
change of driver. The message will show which driver
is activating the personalization feature. It will only
stay on for ve seconds.
ENGINE HOT, STOP ENGINE:This message will
appear when the engine has overheated. Stop and turn
the engine off immediately to avoid severe engine
damage. SeeEngine Overheating on page 6-23.A
multiple chime will also sound when this message
is displayed.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
®
controls are off, this message will display on the DIC.
This message informs the driver that turning on the
exterior lamps is recommended. It has become
dark enough outside to require the headlamps and/or
other exterior lamps. This message will also appear
if the optional Rainsense™ wiping feature is on and the
Twilight Sentinel
®is 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.
3-65

HIGH VOLTAGE:This message shows that the
electrical charging system is overcharging. To avoid
being stranded, have the electrical system checked by
your GM dealer. 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.
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 by
your GM dealer 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 your GM dealer as soon as possible. See “Brake
Fluid” underBrakes on page 6-33.
LOW COOLANT:This message will appear when there
is a low level of engine coolant. Have the cooling
system serviced by your GM dealer as soon as possible.
SeeEngine Coolant on page 6-20.
LOW FUEL:This message will appear when the fuel
supply is less than 5 gallons (18.9 L) and the display is
turned off. A single chime will also sound when this
message is displayed.
LOW OIL LEVEL:For correct operation of the low oil
sensing system, your vehicle should be on a level
surface. A false LOW OIL LEVEL message may appear if
the vehicle is parked on a grade. The oil level sensing
system does not check for actual oil level if the engine
has been off for a short period of time, and the oil level is
never checked while the engine is running. If the LOW
OIL LEVEL message appears, and your vehicle has been
parked on level ground with the engine off for at least
30 minutes, the oil level should be checked by observing
the oil dipstick. Prior to checking the oil level, be sure the
engine has been off for a few minutes and your vehicle is
on a level surface. Then check the dipstick and add oil if
necessary. SeeEngine Oil on page 6-13.
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LOW OIL PRESSURE:If this message appears while
the engine is running, stop the engine and do not
operate it until the cause of low oil pressure is corrected.
Severe damage to the engine can result. A multiple
chime will sound when this message is displayed.
LOW VOLTAGE:This message will appear when the
electrical system is charging less than 10 volts or if
the battery has been drained. If this message appears
immediately after starting, it is possible that the
generator can still recharge the battery. The battery
should recharge while driving but may take a few hours
to do so. Consider using an auxiliary charger (be
sure to follow the manufacturer’s instructions) to boost
the battery after returning home or to a nal destination.
If this message appears while driving or after starting
your vehicle and stays on, have it checked immediately
by your GM dealer to determine the cause of this
problem. To help the generator recharge the battery
quickly, you can reduce the load on the electrical system
by turning off the accessories. You can monitor battery
voltage on the DIC by pressing the INFO button.
The normal range is 11.5 to 15.5 volts.
LOW WASHER FLUID:This message means that your
vehicle is low on windshield washer uid. See
Windshield Washer Fluid on page 6-32.MAX SPEED XX MPH (XX KM/H):A failure in the
magnetic ride control system has occurred when this
message appears. The Powertrain Control Module
(PCM) determines the speed to which your vehicle is
limited. Have your vehicle serviced by your GM dealer if
this message appears.
NO FOB DETECTED:This message is displayed if the
vehicle does not detect the presence of a keyless
access transmitter when you have attempted to start the
vehicle or a vehicle door has just closed. The following
conditions may cause this message to appear:
Driver-added equipment, such as two-way radios or
power inverters, is causing interference. Try moving
the keyless access transmitter away from these
devices when starting the vehicle.
The vehicle is experiencing Electro-Magnetic
Interference (EMI). Some locations, such as airports
or some gas stations, have EMI elds which may
interfere with your keyless access transmitter. If
moving the transmitter to different locations within the
vehicle does not help, place the transmitter in the
glove box transmitter pocket with the buttons facing
to the right and then press the START button.
3-67

NO FOB, OFF OR RUN?:This message is displayed
when you turn off the engine, but the vehicle does
not detect a keyless access transmitter in the vehicle.
The vehicle will remain in accessory mode until the
engine has been turned off or started, or ve minutes
has expired. If you select OFF, the vehicle cannot
be started again without a remote access transmitter in
the vehicle.
OVER SPEED WARNING:This message is displayed
when the vehicle speed exceeds a certain limit as
required by some export countries. A chime will sound
when this message is displayed.
PRESS BRAKE TO START:The brake pedal must be
applied to start the vehicle. Make sure you are
pressing the brake pedal all the way down.
REDUCED ENGINE POWER:This message informs
you that the vehicle is reducing engine power because
the transmission is being placed in gear under
conditions that may cause damage to the vehicle’s
engine, transmission or ability to accelerate.
RIGHT DOOR AJAR:The passenger’s door is open or
ajar when this message appears. The vehicle must
be running and the transmission not in PARK (P) for this
message to display. A chime will sound if the vehicle’s
speed is greater than 3 mph (5 km/h).SERVICE A/C:This message appears when the
electronic sensors that control the air conditioning and
heating systems are no longer working. Have the climate
control system serviced by your GM dealer if you
notice a drop in heating and air conditioning efficiency.
SERVICE ABS:If the SERVICE ABS message is
displayed 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,
your vehicle is in need of service. See your GM dealer.
If the SERVICE ABS message is being displayed, your
Traction Control System 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 anti-lock
brake system and traction control warning lights on the
instrument panel cluster will be illuminated. SeeAnti-Lock
Brake System Warning Light on page 3-53andTraction
Control System (TCS) Warning Light on page 3-53. 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 GM dealer as soon as possible. Adjust your driving
accordingly.
3-68

SERVICE ELECT SYSTEM:This message will display
if an electrical problem has occurred within the
Powertrain Control Module (PCM). Have your vehicle
serviced by your GM dealer.
SERVICE FUEL SYSTEM:The Powertrain Control
Module (PCM) has detected a problem within the fuel
system when this message appears. Have your
vehicle serviced by your GM dealer. This message will
also be displayed when the cluster is not getting
fuel information from the PCM.
SERVICE RADAR CRUISE:This message indicates
that the Adaptive Cruise Control (ACC) system is
disabled and needs service. See your GM dealer.
SERVICE RIDE CONTROL:This message indicates
there is a problem with the Magnetic Ride Control
System. Have your vehicle serviced by your GM dealer.
SERVICE TRACTION SYS:This message
indicates there is a problem with the Traction Control
System (TCS). Have your vehicle serviced by your
GM dealer.SERVICE STABILITRAK:If this message appears it
means there may be a problem with your stability
enhancement system. If you see this message, try to
reset the system. Stop, turn off the engine, then start the
engine again. If the SERVICE STABILITRAK message
still comes on, it means there is a problem. You
should see your GM dealer for service. Reduce your
speed and drive accordingly. A single chime will
also sound when this message is displayed.
SERVICE TRANSMISSION:This message indicates
that there is a problem with the transmission. Have your
vehicle serviced by your GM dealer.
SERVICE VEHICLE SOON:This message is displayed
when a non-emissions related powertrain malfunction
occurs. Have your vehicle serviced by your GM dealer
as soon as possible.
SHIFT TO PARK:This message indicates that the
vehicle is not in PARK (P) when the engine is being
turned off. The vehicle will be in accessory mode. Once
the shifter is moved to PARK (P), the vehicle will turn off.
3-69

Other Messages
Here are more messages that you can receive on your
Driver Information Center (DIC). To acknowledge a
message and read another message that may have
come on at the same time, press the RESET button.
ACCESSORY MODE ON
CHANGE OIL SOON
(SeeEngine Oil on page 6-13andEngine Oil Life
System on page 6-16.)
FOB BATTERY LOW
HIGH TIRE PRESS LF
HIGH TIRE PRESS RF
HIGH TIRE PRESS LR
HIGH TIRE PRESS RR
INTRUSION SENSOR OFF
INTRUSION SENSOR ON
KNOWN FOB
LEFT FRONT TIRE FLAT MAX SPD 55, REDUCED
HNDLG
LEFT REAR TIRE FLAT MAX SPD 55, REDUCED
HNDLG
LOW TIRE PRESS LF
LOW TIRE PRESS RF
LOW TIRE PRESS LR
LOW TIRE PRESS RR
MAX # FOBS LEARNED
OFF-ACC TO LEARN
READY FOR FOB #X
RIGHT FRT TIRE FLAT MAX SPD 55, REDUCED
HNDLG
RIGHT REAR TIRE FLAT MAX SPD 55, REDUCED
HNDLG
WAIT XX MINUTES
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