2007 CADILLAC CTS V light

This light should come on, as a check to show
you it is working, when the ignition is on and the
engine is not running. If the light does not
come on, have it repaired. This light will also
come on during a malfunction in one of two ways:
Light Flashing— A misre condition has
been detected. A misre increases vehicle
emissions and may damage the emission
control system on your vehicle. Diagnosis and
service may be required.
Light On Steady— An emission control
system malfunction has been detected on your
vehicle. Diagnosis and service may be
required.
If the Light is Flashing
The following may prevent more serious damage
to your vehicle:
Reducing vehicle speed
Avoiding hard accelerations
Avoiding steep uphill grades
If you are towing a trailer, reduce the amount
of cargo being hauled as soon as it is
possibleIf the light stops ashing and remains on steady,
see “If the Light Is On Steady” following.
If the light continues to ash, when it is safe to do
so, stop the vehicle. Find a safe place to park
your vehicle. Turn the key off, wait at least
10 seconds and restart the engine. If the light
remains on steady, see “If the Light Is On Steady”
following. If the light is still ashing, follow the
previous steps, and see your dealer for service as
soon as possible.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully
install the cap. SeeFilling the Tank on page 337.
The diagnostic system can determine if the
fuel cap has been left off or improperly installed. A
loose or missing fuel cap will allow fuel to
evaporate into the atmosphere. A few driving trips
with the cap properly installed should turn the
light off.
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Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The
condition will usually be corrected when the
electrical system dries out. A few driving trips
should turn the light off.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel.
SeeGasoline Octane on page 334. Poor fuel
quality will cause your engine not to run as
efficiently as designed. 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.
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 dealer
can prepare the vehicle for inspection.
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Oil Pressure Light
{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.If your vehicle has this
light, it will come on
when there is a problem
with your engine oil
pressure.
This light will come on when you turn your key to
ON or START. It goes off once you start the
engine. That is a check to be sure the light works.
If it does not come on, be sure to have it xed
so it will be there to warn you if there is a problem.
When the light comes on and stays on, it means
that oil is not owing through your engine properly.
You could be low on oil and you might have
some other system problem. SeeEngine Oil on
page 346for more information.
212

Sport Mode Light
(Automatic Transmission/CTS)
This light will come on
while the sport mode is
in use.
When you turn off the sport mode, the light will go
out. If it stays on, your vehicle may need service.
See your dealer. See “Sport Mode” under
Automatic Transmission Operation on page 122
for more information.
Security Light
For information
regarding this light, see
Theft-Deterrent
System on page 111.
Fog Lamp Light
This 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 183for more
information.
Lights On Reminder
This light comes on
whenever the parking
lamps are on.
SeeHeadlamps on Reminder on page 181for
more information.
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Cruise Control Light
This light comes on
whenever you set the
cruise control.
The light goes out when the cruise control is
turned off. SeeCruise Control on page 176for
more information.
Highbeam On Light
This light comes on
when the high-beam
headlamps are in use.
SeeHeadlamp High/Low-Beam Changer on
page 172for more information.
Fuel Gage
The fuel gage shows
approximately how
much fuel is in the fuel
tank. It works only
when the ignition is in
the ON position.
If the fuel supply gets low, the Fuel Level Low
message will appear on the Driver Information
Center (DIC) and a single chime will sound. See
DIC Warnings and Messages on page 232for
more information.
214

Transmission Fluid Hot Message
When you see this
ashing symbol, the
transmission uid
temperature is high
(290°F (143°C)).
To acknowledge this warning, press either button
on the outboard switch on the left spoke of the
steering wheel. After you press this button, the
warning will redisplay every 10 minutes until the
temperature returns to the normal operating range.
If this message appears, you may continue to drive
at a slower speed while monitoring the transmission
uid temperature. Ideally, the transmission oil
temperature should not rise above 265°F (129°C). If
you regularly experience temperatures above this
limit due to high performance operation, it is
recommended to use an auxiliary uid cooler for the
transmission and differential. See your dealer for
details. If this warning is displayed during normal
vehicle operation on at roads, your vehicle may
need service. See your dealer for an inspection.
SeeDIC Warnings and Messages on page 232and
Manual Transmission Fluid on page 354for more
information.
Hot Coolant Temperature Warning
Message
When you see this
ashing symbol, the
engine coolant
temperature is high
(257°F (125°C)).
To acknowledge this warning, press either button
on the outboard switch on the left spoke of the
steering wheel. After you press a button, this
warning will come on every 10 minutes until the
temperature returns to the normal operating range.
Driving aggressively or driving on long hills can
cause the engine coolant temperature to be higher
than normal. The Engine Coolant Temperature
Warning Light should also come on. SeeEngine
Coolant Temperature Warning Light (CTS) on
page 207for more information. If this warning is
displayed during normal vehicle operation on
at roads, your vehicle may need service.
See your dealer for an inspection.
219

Check Engine Oil Pressure Message
Your vehicle may have
this feature. When you
see this ashing
symbol, the engine oil
pressure is low.
To acknowledge this warning, press either button
on the outboard switch on the left spoke of the
steering wheel. After you press this button,
the warning will redisplay every 10 minutes until
the pressure returns to the normal operating
range. 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 Oil Pressure
Light should also come on. SeeOil Pressure Light
on page 212for more information.
Oil Temperature Warning Message
When you see this
ashing symbol, the
engine oil temperature
is high.
To acknowledge this warning, press either button
on the outboard switch on the left spoke of the
steering wheel. After you press a button, the
warning will come on every 10 minutes until the
temperature returns to the normal operating range.
Driving aggressively or driving on long hills can
cause the engine oil temperature to be higher than
normal. If this warning is displayed during
normal vehicle operation on at roads, your vehicle
may need service. See your dealer for an
inspection. SeeEngine Oil on page 346for more
information.
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Tire Pressure Warning Message
When you see this
ashing symbol, one or
more of the vehicle’s
tires is either under
or over-inated.
To acknowledge this warning, press either button
on the outboard switch on the left spoke of the
steering wheel. There are three levels of warning
for this display:
1. High Tire Pressure (above 42 psi (290 kPa))
2. Low Tire Pressure (below 25 psi (170 kPa))
3. Flat Tire (below 5 psi (35 kPa))For conditions 1 and 2, this warning will ash
ve times and the display will then show the tire
pressure gage. For condition 3, this warning
will ash continuously until the driver
acknowledges it. In any of the three cases, the
warning will redisplay every 10 minutes until
the situation is corrected. Conditions 2 and 3 will
also display a warning light elsewhere on the
cluster that will stay on after this warning is
acknowledged. SeeTire Pressure Light (CTS-V
Only) on page 208for more information. Also see
Tire Pressure Monitor System on page 405for
more information on tire pressure specications.
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