And CADILLAC CTS V 2005 1.G Owners Manual

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 possible
If 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 5-8. 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.
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.
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Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel. See
Gasoline Octane on page 5-5. 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 GM 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.
This light tells you if there
could be a problem with
your engine oil pressure.The light goes on when you turn your key to ON or
START. It goes off once you start your engine. That’s a
check to be sure the light works. If it doesn’t come
on, be sure to have it xed so it will be there to warn
you if something goes wrong.
When the light comes on and stays on, it means that oil
isn’t owing through your engine properly. You could
be low on oil and you might have some other system
problem. SeeEngine Oil on page 5-16for more
information.
Winter Driving Mode Light
(Automatic Transmission)
This light will come on
when the winter driving
mode feature is in use.
When you turn off the winter driving mode feature, the
light will go out. If it stays on, your vehicle may need
service. See your dealer. See “Winter Driving Mode”
underAutomatic Transmission Operation on page 2-26
for more information.
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Cruise Control Light
This light comes on
whenever you set your
cruise control.
The light will go out when the cruise control is turned
off. SeeCruise Control (CTS) on page 3-12or
Cruise Control (CTS-V) on page 3-16for more
information.
Highbeam On Light
This light comes on
whenever the high-beam
headlamps are on.
SeeHeadlamp High/Low-Beam Changer on page 3-9
for more information.
Fuel Gage
The fuel gage shows
approximately how much
fuel is in the tank. It
works only when the
ignition is in ON.
If the fuel supply gets low, the Fuel Level Low message
will appear on the DIC and a single chime will sound.
SeeDIC Warnings and Messages on page 3-65
for more information.
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Here are a few concerns some owners have had about
the fuel gage. All of these situations 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 full.
The gage may change when you turn, stop quickly
or accelerate quickly.
It takes a little more or less fuel to ll the tank than
the gage indicated. For example, the gage may
have indicated that the tank was half full, but
it actually took a little more or less than half the
tank’s capacity to ll the tank.
Message Center
Message Center (CTS-V)
Your vehicle may have a message center that can
display information relating to powertrain uids,
tire pressures, vehicle dynamics, speedometer and
odometer information, and transmission status. It also
displays warning messages. There are two different
areas where message center information will be
displayed. One display is inside of the tachometer and
the other is inside of the speedometer.These are the controls
for the message center.
They are located on
the left spoke of the
steering wheel.
The outboard switch (A and B) controls the display of
information inside of the tachometer. The upper
button (C) on the inboard switch controls the display of
information inside of the speedometer. The lower
button (D) on the inboard switch turns the traction
control on or off. SeeTraction Control System (TCS)
(CTS) on page 4-8orTraction Control System
(TCS) (CTS-V) on page 4-9for more information.
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Speedometer Display
This display will show information relating to vehicle
speed, odometer, and transmission status. The
information displayed can be changed by pressing (C).
Pressing this button cycles the displayed information
as follows: digital speedometer only, odometer
only, speedometer and odometer, or blank display.
When the transmission is shifted into REVERSE (R), an
R will appear in the upper right corner.
During slow speed maneuvers, the engine’s computer
may command the transmission to engage the Skip Shift
feature. For more information seeManual Transmission
Operation on page 2-31.
Tachometer Display
Press (B) to cycle through the following displays:
coolant temperature, oil pressure, oil temperature,
transmission temperature, tire pressure, and lateral
acceleration. Press (A) to cycle through the displays in
reverse order. If you press (A) for about one second
the display will become blank.
Coolant Temperature
When the coolant
temperature is displayed
you will see the coolant
temperature symbol.
The temperature will be displayed in degrees Fahrenheit
or Celsius and there will be a graph at the bottom of
the display. If the graph shows the temperature in
the shaded area all the way on the right, then the
coolant temperature is hot. SeeEngine Overheating on
page 5-28for more information.
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Oil Pressure
When the oil pressure is
displayed you will see the
oil pressure symbol.
The oil pressure will be displayed in psi or kPa and
there will be a graph at the bottom of the display. If the
graph shows the pressure in the shaded area all the
way to the left, then the oil pressure is low. SeeEngine
Oil on page 5-16andDIC Warnings and Messages
on page 3-65for more information.
Oil Temperature
When the oil temperature
is displayed you will see
the oil temperature symbol.The temperature will be displayed in degrees Fahrenheit
or Celsius and there will be a graph at the bottom of
the display. If the graph shows the temperature in
the shaded area all the way on the right, then the oil
temperature is hot. SeeEngine Oil on page 5-16
for more information.
Transmission Temperature
When the transmission
temperature is displayed
you will see the
transmission temperature
symbol.
The temperature will be displayed in degrees Fahrenheit
or Celsius and there will be a graph at the bottom of
the display. If the graph shows the temperature in
the shaded area all the way on the right, then the
transmission temperature is hot. SeeDIC Warnings and
Messages on page 3-65andManual Transmission
Fluid on page 5-24for more information.
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Tire Pressure
When the tire pressure is displayed you will see a
vehicle in the display. The numbers in each corner
represent the tire pressure for the corresponding tire.
The tire pressure will be displayed in psi or kPa.
If any of the tires are blinking on the vehicle in the
display, this means that the tire pressure in that tire is
either high or low. SeeTire Pressure Monitor System
(CTS-V) on page 5-65for more information.
Lateral Acceleration
Lateral acceleration is a measure of how hard you are
taking a corner. For example, when you are turning right
you will feel your body push to the left. This force is
measured in a “g”. This gage will display from 0.00 g to
1.2 g. The lowest reading means there is no lateral
acceleration. The highest reading means the force the
driver is feeling is 1.2 times the acceleration due
to gravity.
When (B) is pressed and held while the Lateral
Acceleration display is being shown, the peak hold
values—both tick marks and numbers—will be reset
to zero.
Warning Messages
The warning messages that are described in the
following text are also shown in the tachometer display.
While any warning messages are shown, pressing
(A) or (B) will acknowledge the warning and then display
the gage relating to the error message. For instance,
if a tire is below the minimum recommended pressure,
the tire pressure warning message will blink on and
off (5 times for a low tire warning, continuously for a at
tire warning). The driver can go to the tire pressure
display immediately by pressing either button on
the outboard switch.
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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 GM 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 3-65andManual Transmission Fluid on page 5-24
for 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
redisplay 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. Display of
this warning should correspond with the Engine Coolant
Temperature Warning Light. SeeEngine Coolant
Temperature Warning Light (CTS) on page 3-43for
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.
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Check Engine Oil Pressure Message
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. This warning should correspond with
the Oil Pressure Light. SeeOil Pressure Light on
page 3-48for 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
redisplay 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 GM
dealer for an inspection. SeeEngine Oil on page 5-16
for more information.
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