2009 CADILLAC DTS maintenance reset

Manual Operation
«A ª(Fan Control):Press to increase or decrease
the fan speed.
«bª(Temperature Control):Press to increase or
decrease the temperature for the rear seat passengers.
Once the rear temperature setting is changed from
following the front temperature setting, it will no longer
follow changes to the front temperature setting until
the front climate control AUX button resets it.
«Nª(Air Delivery Mode Control):Press these
buttons to change the air delivery mode. If in AUTO
air delivery mode, pressing the up arrow button will
cancel automatic operation and place the system in
manual mode.
Y(Vent):Air is directed to the upper outlets.
%(Bi-Level):Air is divided between the upper outlets
and the oor outlets.
[(Floor):Air is directed to the oor outlets.
Passenger Compartment Air Filter
The passenger compartment air lter traps most of the
pollen from the air entering the vehicle. The lter may
need to be changed periodically. For how often to change
the passenger compartment air lter, seeScheduled
Maintenance on page 6-4.
The access panel for the passenger compartment air
lter is located under the hood near the windshield,
on the passenger’s side of the vehicle.
3-48

AVERAGE SPEED
This display shows the average speed of the vehicle in
either miles per hour (mph) or kilometers per hour (km/h).
This average is calculated based on the various vehicle
speeds recorded since the last reset of this display.
To reset this display, press the set/reset button.
The display will return to zero.
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
uctuate when viewing this information on the DIC.
This is normal. SeeCharging System Light on page 3-56
for more information.
If there is a problem with the battery charging system,
the DIC will display a message. SeeDIC Warnings
and Messages on page 3-73andElectric Power
Management on page 3-36for 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. SeeScheduled Maintenance
on page 6-4andEngine Oil on page 5-13.
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, SeeEngine Oil Life System on page 5-16.
The display will show 100% when the system is reset.
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DIC Warnings and Messages
These messages appear if there is a problem detected
in one of your vehicle’s systems.
You must acknowledge a message to clear it from the
screen for further use. To clear a message, press
the set/reset button.
Be sure to take any message that appears on the
screen seriously and remember that clearing the
message will only make the message disappear,
not the problem.
ADVISORY XXX MPH (km/h)
This message displays when the Speed Alert has been
turned on through the DIC Information Menu and the
vehicle is at or above the advised speed. SeeDIC
Operation and Displays on page 3-68.
AUTOMATIC LIGHT CONTROL OFF
This message displays when the automatic headlamps
are turned off. SeeExterior Lamps on page 3-29for
more information.
AUTOMATIC LIGHT CONTROL ON
This message displays when the automatic headlamps
are turned on. SeeExterior Lamps on page 3-29for
more information.
BATTERY SAVER ACTIVE
This message displays when the system detects that
the battery voltage is dropping beyond a reasonable
level. The battery saver system starts reducing certain
features of the vehicle that you may be able to notice.
At the point that the features are disabled, this message
is displayed. It means that the vehicle is trying to save the
charge in the battery.
Turn off all unnecessary accessories to allow the battery
to recharge.
The normal battery voltage range is 11.5 to 15.5 volts.
You can monitor battery voltage on the Driver Information
Center (DIC) by pressing the trip/fuel button until
BATTERY VOLTAGE is displayed.
CHANGE ENGINE OIL SOON
This message displays when service is required for
your vehicle. See your dealer/retailer. SeeEngine Oil
on page 5-13andScheduled Maintenance on page 6-4
for 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,
seeEngine Oil Life System on page 5-16.
3-73

How to Reset the Engine Oil Life
System
The Engine Oil Life System calculates when to change
the engine oil and lter based on vehicle use. Whenever
the oil is changed, reset the system so it can calculate
when the next oil change is required. If a situation occurs
where the oil is changed prior to a CHANGE ENGINE OIL
SOON message in the Driver Information Center (DIC)
being turned on, reset the system.
After the oil has been changed, the CHANGE ENGINE
OIL SOON message must be reset:
1. Turn the key to the ON/RUN position without
starting the engine.
2. Press the INFO button on the Driver Information
Center (DIC) until OIL LIFE REMAINING is
displayed. SeeDIC Operation and Displays on
page 3-68.
3. Press and hold the INFO RESET button until 100%
is displayed. This resets the oil life indicator.
4. Turn the key to LOCK/OFF.
If the CHANGE ENGINE OIL SOON message comes
back on when the vehicle is started, the engine oil
life system has not reset. Repeat the procedure.
What to Do with Used Oil
Used engine oil contains certain elements that can be
unhealthy for your skin and could even cause cancer.
Do not let used oil stay on your skin for very long. Clean
your skin and nails with soap and water, or a good
hand cleaner. Wash or properly dispose of clothing or
rags containing used engine oil. See the manufacturer’s
warnings about the use and disposal of oil products.
Used oil can be a threat to the environment. If you
change your own oil, be sure to drain all the oil from the
lter before disposal. Never dispose of oil by putting it in
the trash, pouring it on the ground, into sewers, or into
streams or bodies of water. Recycle it by taking it to a
place that collects used oil.
Engine Air Cleaner/Filter
SeeEngine Compartment Overview on page 5-12for
the location of the engine air cleaner/lter.
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/lter at the MaintenanceII
intervals and replace it at the rst oil change after each
50,000 mile (80 000 km) interval. SeeScheduled
Maintenance on page 6-4for more information. If you
are driving in dusty/dirty conditions, inspect the lter
at each engine oil change.
5-17

Scheduled Maintenance
To maintain the ride, handling, and performance of
the vehicle, it is important that the rst tire rotation
service be performed when the vehicle has 5,000 to
8,000 miles (8 000 to 13 000 km). Check tires for
ination pressures and wear. SeeTires on page 5-48.
Rotate tires. SeeTire Inspection and Rotation on
page 5-65and “Tire Wear Inspection” inAt Least Once
a Month on page 6-9.
When the CHANGE ENGINE OIL SOON message
displays in the Driver Information Center (DIC), service
is required for the vehicle. Have the vehicle serviced
as soon as possible within the next 600 miles
(1 000 km). It is possible that, if driving under the best
conditions, the engine oil life system may not indicate
that vehicle service is necessary for over a year.
However, the engine oil and lter must be changed at
least once a year and at this time the system must
be reset. Your dealer/retailer has trained service
technicians who will perform this work using genuine
parts and reset the system.
If the engine oil life system is ever reset accidentally,
service the vehicle within 3,000 miles (5 000 km)
since the last service. Remember to reset the oil life
system whenever the oil is changed. SeeEngine Oil Life
System on page 5-16for information on the Engine
Oil Life System and resetting the system.When the CHANGE ENGINE OIL SOON message
appears, the following services, checks, and inspections
are required:
❑Change engine oil and lter. SeeEngine Oil on
page 5-13. Reset oil life system. SeeEngine Oil Life
System on page 5-16.An Emission Control Service.
❑Visually check for any leaks or damage.
See footnote (k).
❑Inspect engine air cleaner lter. If necessary, replace
lter. SeeEngine Air Cleaner/Filter on page 5-17.
See footnote (m).
❑Rotate tires and check ination pressures and wear.
SeeTire Inspection and Rotation on page 5-65and
“Tire Wear Inspection” inAt Least Once a Month on
page 6-9.
❑Inspect brake system.See footnote (a).
❑Check engine coolant and windshield washer uid
levels and add uid as needed.
❑Perform any needed additional services.
See “Additional Required Services” in this section.
❑Inspect suspension and steering components.
See footnote (b).
❑Inspect engine cooling system.See footnote (c).
❑Inspect wiper blades.See footnote (d).
❑Inspect restraint system components.See footnote (e).
❑Lubricate body components.See footnote (f).
❑Check transmission uid level and add uid
as needed.
6-4