2011 CADILLAC DTS engine

Black plate (54,1)Cadillac DTS Owner Manual - 2011
Tire Pressure Light
For vehicles with a Tire
Pressure Monitoring
System, this light comes
on briefly when the engine
is started. It provides
information about tire
pressures and the Tire
Pressure Monitoring
System.
When the Light is On Steady
This indicates that one or more of the tires is
significantly underinflated.
A tire pressure message in the Driver Information
Center (DIC), can accompany the light. SeeDriver
Information Center (DIC)
on page 4‑59for more
information. Stop and check the tires as soon as it is
safe to do so. If underinflated, inflate to the proper
pressure. See Inflation - Tire Pressure
on page 6‑57for more information.
When the Light Flashes First and Then is
On Steady
This indicates that there may be a problem with the Tire
Pressure Monitor System. The light flashes for about a
minute and stays on steady for the remainder of the
ignition cycle. This sequence repeats with every ignition
cycle. SeeTire Pressure Monitor Operation
on
page 6‑61for more information.
Malfunction Indicator Lamp
A computer system called OBD II (On-Board
Diagnostics-Second Generation) monitors operation
of the fuel, ignition, and emission control systems.
It ensures that emissions are at acceptable levels for
the life of the vehicle, helping to produce a cleaner
environment.
This light should come on
when the ignition is on,
but the engine is not
running, as a check to
show it is working. If it
does not, have the vehicle
serviced by your dealer.
If the Malfunction Indicator Lamp 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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Black plate (55,1)Cadillac DTS Owner Manual - 2011
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 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: Modifications 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.
Modifications 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 misfire condition has been detected.
A misfire increases vehicle emissions and could
damage the emission control system on the vehicle.
Diagnosis and service might be required. To prevent more serious damage to the vehicle:
.Reduce vehicle speed.
.Avoid hard accelerations.
.Avoid steep uphill grades.
.If towing a trailer, reduce the amount of cargo
being hauled as soon as it is possible.
If the light continues to flash, when it is safe to do so,
stop the vehicle. Find a safe place to park the vehicle.
Turn the vehicle off, wait at least 10 seconds, and
restart the engine. If the light is still flashing, follow the
previous steps and see your dealer for service as soon
as possible.
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. See Filling
the Tankon 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.
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Black plate (56,1)Cadillac DTS Owner Manual - 2011
.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 can cause: stalling
after start-up, stalling when the vehicle is changed
into gear, misfiring, 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.See Gasoline Octane on page 6‑5.
If none of the above have made the light turn off,
your dealer can check the vehicle. The dealer has the
proper test equipment and diagnostic tools to fix any
mechanical or electrical problems that might have
developed.
Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments may have
programs to inspect the on-vehicle emission control
equipment For the inspection, the emission system
test equipment is connected to the vehicle’s Data Link
Connector (DLC).
The DLC is under the instrument panel to the left
of the steering wheel. See your dealer if assistance is
needed.
The vehicle may not pass inspection if:
.the Malfunction Indicator Lamp is on with the
engine running, or if the light does not come on
when the ignition is turned to ON/RUN while the
engine is off.
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Black plate (57,1)Cadillac DTS Owner Manual - 2011
.the critical emission control systems have not been
completely diagnosed by the system. This can
happen if the battery has recently been replaced or
if the battery has run down. The diagnostic system
evaluates 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, your
dealer can prepare the vehicle for inspection.
Oil Pressure Light
{WARNING:
Do not keep driving if the oil pressure is low. The
engine can become so hot that it catches fire.
Someone could be burned. Check the oil as soon
as possible and have the vehicle serviced.Notice:
Lack of proper engine oil maintenance
can damage the engine. The repairs would not be
covered by the vehicle warranty. Always follow the
maintenance schedule for changing engine oil.
This light comes on briefly while starting the engine.
If it does not, have the vehicle serviced by your dealer.
If the system is working normally the indicator light then
goes off.
If the light comes on and stays on, it means that oil is
not flowing through the engine properly. The vehicle
could be low on oil and it might have some other
system problem.
Security Light
For information regarding
this light and the vehicle's
security system, see
Content Theft-Deterrent
on page 3‑19.
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Black plate (59,1)Cadillac DTS Owner Manual - 2011
Fuel Gauge
The fuel gauge shows
approximately how much
fuel is in the tank. It works
only when the engine
is on.
An arrow on the fuel gauge indicates the side of the
vehicle the fuel door is on.
If the fuel supply gets low, the FUEL LEVEL LOW
message appears in the Driver Information Center
and a single chime sounds. See DIC Warnings and
Messages
on page 4‑65for more information.
Here are a few situations that may occur with the fuel
gauge. All of these situations are normal and do not
indicate that anything is wrong with the fuel gauge:
.At the gas station the gas pump shuts off before
the gauge reads full.
.The gauge may change when the vehicle is
turning, stops quickly or accelerates quickly.
.It takes a little more or less fuel to fill the tank than
the gauge indicated. For example, the gauge 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 fill the tank.
Driver Information Center (DIC)
The Driver Information Center (DIC) gives you the
status of many of your vehicle's systems. The DIC is
also used to display warning/status messages. All
messages will appear in the DIC display located at
the bottom of the instrument panel cluster, below the
tachometer and speedometer. The DIC buttons are
located on the instrument panel, to the left of the
steering wheel.
The DIC comes on when the ignition is on. After a short
delay, the DIC will display the information that was last
displayed before the engine was turned off.
The top line of the DIC display shows the vehicle
system information and the warning/status messages.
The bottom line of the DIC display shows the odometer
on the left side. The bottom line of the DIC display also
shows a digital speedometer on the right side.
If a problem is detected, a warning message will appear
on the display. Be sure to take any message that
appears on the display seriously and remember that
clearing the message will only make the message
disappear, not correct the problem.
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Black plate (62,1)Cadillac DTS Owner Manual - 2011
BATTERY VOLTAGE
This display shows the current battery voltage. If the
voltage is in the normal range, the value will display. For
example, the display may read BATTERY VOLTAGE
13.2 VOLTS. If the voltage is low, the display will show
LOW. If the voltage is high, the display will show HIGH.
Your vehicle's charging system regulates voltage based
on the state of the battery. The battery voltage may
fluctuate when viewing this information on the DIC. This
is normal. SeeCharging System Light
on page 4‑49for
more information.
If there is a problem with the battery charging system,
the DIC will display a message. See DIC Warnings
and Messages
on page 4‑65and Electric Power
Managementon page 4‑32for more information.
Blank Display
This display shows no information.
Vehicle Information Display Menu Items
T
(Vehicle Information): The following display
menu items can be displayed by pressing the vehicle
information button:
OIL LIFE REMAINING
If the vehicle has this display, it shows the estimated oil
life remaining. If you see 99% OIL LIFE REMAINING on
the display, that means that 99% of the current oil life
remains.
When the oil life is depleted, the CHANGE ENGINE OIL
SOON message will appear on the display. You should
change the oil as soon as possible. In addition to the
engine oil life system monitoring the oil life, additional
maintenance is recommended in the Maintenance
Schedule in this manual. See Scheduled Maintenance
on page 7‑3andEngine Oil on page 6‑15.
Remember, you must reset the OIL LIFE yourself after
each oil change. It will not reset itself. Also, be careful
not to reset the OIL LIFE accidentally at any time other
than when the oil has just been changed. It cannot be
reset accurately until the next oil change. To reset the
engine oil life system, See Engine Oil Life System
on
page 6‑18. The display will show 100% when the
system is reset.
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Black plate (66,1)Cadillac DTS Owner Manual - 2011
CHANGE ENGINE OIL SOON
This message displays when service is required for
your vehicle. See your dealer. SeeEngine Oilon
page 6‑15and Scheduled Maintenanceon page 7‑3for more information.
When you reset the CHANGE ENGINE OIL SOON
message by clearing it from the display, you still must
reset the engine oil life system separately. For more
information on resetting the engine oil life system, see
Engine Oil Life System on page 6‑18.
CHECK TIRE PRESSURE or ADD AIR
TO TIRE
On vehicles with the Tire Pressure Monitor System
(TPMS), this message displays when the pressure in
one or more of the vehicle's tires is low. This message
also displays LEFT FRONT, RIGHT FRONT, LEFT
REAR, or RIGHT REAR to indicate which tire needs to
be checked. The low tire pressure warning light will also
come on. See Tire Pressure Light
on page 4‑54. If a
tire pressure message appears on the DIC, stop as
soon as you can. Have the tire pressures checked and
set to those shown on the Tire Loading Information
label. See Tires
on page 6‑48,Loading the Vehicleon
page 5‑18, and Inflation - Tire Pressureon page 6‑57.You can receive more than one tire pressure message
at a time. To read the other messages that may have
been sent at the same time, press the set/reset button.
The DIC also shows the tire pressure values. See
DIC
Operation and Displays
on page 4‑60.
CLEAN RADAR
This message displays when the Adaptive Cruise
Control (ACC) system and the Forward Collision Alert
(FCA) system are 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 “Cleaning the System” under
Adaptive Cruise Control on page 4‑14.
CRUISE SET TO XXX MPH (km/h)
This message displays whenever the cruise control is
set. See Cruise Controlon page 4‑12andAdaptive
Cruise Controlon page 4‑14for more information.
If your vehicle has Adaptive Cruise Control (ACC), after
a few seconds, this message clears and the message
“SET SPD XX” displays at the bottom of the DIC. See
“SET SPD (Speed)” later in this section.
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Black plate (67,1)Cadillac DTS Owner Manual - 2011
DRIVER DOOR OPEN
This symbol appears with
this message.
This message displays when the driver door is not
closed completely. Make sure that the door is closed
completely.
ENGINE HOT –A/C
(Air Conditioning) OFF
This message displays when the engine coolant
becomes hotter than the normal operating temperature.
See Engine Coolant Temperature Gauge
on
page 4‑53. To avoid added strain on a hot engine, the
air conditioning compressor automatically turns off.
When the coolant temperature returns to normal, the
air conditioning compressor turns back on. You can
continue to drive your vehicle. If this message continues to appear, have the system
repaired by your dealer as soon as possible to avoid
damage to the engine.
ENGINE OVERHEATED IDLE ENGINE
Notice:
If you drive your vehicle while the engine is
overheating, severe engine damage may occur. If an
overheat warning appears on the instrument panel
cluster and/or DIC, stop the vehicle as soon as
possible. Do not increase the engine speed above
normal idling speed. See Engine Overheating
on
page 6‑29for more information.
This message displays when the engine coolant
temperature is too hot. Stop and allow the vehicle
to idle until it cools down. See Engine Coolant
Temperature Warning Light on page 4‑53.
See Overheated Engine Protection Operating Mode
on
page 6‑31for information on driving to a safe place in
an emergency.
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