2009 CADILLAC DTS air filter

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Horn .............................................................3-6
Tilt Wheel.....................................................3-6
Power Tilt Wheel and Telescopic
Steering Column.........................................3-7
Heated Steering Wheel...................................3-7
Turn Signal/Multifunction Lever.........................3-8
Turn and Lane-Change Signals........................3-8
Headlamp High/Low-Beam Changer..................3-9
Forward Collision Alert (FCA) System................3-9
Flash-to-Pass...............................................3-13
Windshield Wipers........................................3-13
Rainsense™ II Wipers...................................3-14
Windshield Washer.......................................3-15
Cruise Control..............................................3-16
Adaptive Cruise Control.................................3-19
Exterior Lamps.............................................3-29
Wiper Activated Headlamps............................3-32
Headlamps on Reminder................................3-33
Daytime Running Lamps (DRL).......................3-33
Fog Lamps ..................................................3-34
Cornering Lamps..........................................3-34
Exterior Lighting Battery Saver........................3-34
Instrument Panel Brightness...........................3-34Courtesy Lamps...........................................3-35
Entry Lighting...............................................3-35
Parade Dimming...........................................3-35
Reading Lamps............................................3-35
Footwell Lamps............................................3-36
Battery Load Management.............................3-36
Electric Power Management...........................3-36
Inadvertent Power Battery Saver.....................3-37
Battery Run-Down Protection..........................3-37
Accessory Power Outlet(s).............................3-38
Ashtray(s)....................................................3-39
Analog Clock...............................................3-39
Climate Controls............................................3-40
Dual Climate Control System..........................3-40
Outlet Adjustment.........................................3-46
Rear Climate Control System.........................3-46
Passenger Compartment Air Filter...................3-48
Warning Lights, Gages, and Indicators............3-50
Instrument Panel Cluster................................3-51
Speedometer and Odometer...........................3-52
Tachometer.................................................3-52
Safety Belt Reminders...................................3-53
Airbag Readiness Light..................................3-54
Passenger Airbag Status Indicator...................3-55
Charging System Light..................................3-56
Section 3 Instrument Panel
3-1

Manual Operation
9(Off):Turns the entire climate control system off.
Outside air still enters the vehicle and is directed to
the oor. The airow direction and temperature can
be adjusted, as indicated below.
If the temperature is adjusted while the system is off,
the display will light to show the current settings.
wx(Driver’s Temperature Controls):Press the
up or down buttons next to the fan control to manually
increase or decrease the temperature inside the vehicle.
wx(Passenger’s Temperature Controls):
Press the up or down buttons next to the air delivery
mode control to manually increase or decrease the
temperature for the front passenger. If the passenger
climate control system is off, pressing one of these
buttons turns it on.
9(Fan Control):Turn clockwise or counterclockwise
to increase or decrease the fan speed. Turning this
control completely counterclockwise will turn on the
automatic fan operation. If the airow seems low
when the fan speed is at the highest setting, the
passenger compartment air lter may need to be
replaced. SeePassenger Compartment Air Filter
on page 3-48.Air Delivery Mode Control:Turn clockwise or
counterclockwise to change the current airow mode.
Select one of the following:
AUTO:Turns on the automatic delivery mode operation.
F(Vent):Air is directed to the instrument panel
outlets.
*(Bi-Level):Air is divided between the instrument
panel and the oor outlets. In automatic operation,
cooler air is directed to the upper outlets and warmer
air to the oor outlets.
7(Floor):Air is directed to the oor outlets with some
air directed to the side window outlets and the windshield.
If recirculation is selected, it only stays on for
three minutes to reduce windshield fogging.
W(Floor/Defog):This mode clears the windows of fog
or moisture. Air is directed to the oor outlets, with some
air going to the side window outlets and windshield.
When selected, the system turns off recirculation and
runs the air conditioning compressor unless the outside
temperature is at or below freezing. The recirculation
mode cannot be selected while in the oor/defog mode.
3-42

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

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-4
California Perchlorate Materials Requirements.....5-4
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of
the Vehicle.................................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling the Tank..............................................5-7
Filling a Portable Fuel Container.......................5-9
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Oil Life System..................................5-16
Engine Air Cleaner/Filter................................5-17
Automatic Transmission Fluid.........................5-19
Cooling System............................................5-22
Engine Coolant.............................................5-23
Coolant Surge Tank Pressure Cap..................5-27
Engine Overheating.......................................5-28Overheated Engine Protection
Operating Mode........................................5-30
Power Steering Fluid.....................................5-31
Windshield Washer Fluid................................5-32
Brakes........................................................5-33
Battery........................................................5-36
Jump Starting...............................................5-38
Headlamp Aiming...........................................5-43
Bulb Replacement..........................................5-46
High Intensity Discharge (HID) Lighting............5-46
Windshield Wiper Blade Replacement..............5-46
Tires..............................................................5-48
Tire Sidewall Labeling...................................5-49
Tire Terminology and Denitions.....................5-54
Ination - Tire Pressure.................................5-57
High-Speed Operation...................................5-59
Tire Pressure Monitor System.........................5-60
Tire Pressure Monitor Operation.....................5-61
Tire Inspection and Rotation...........................5-65
When It Is Time for New Tires.......................5-67
Buying New Tires.........................................5-68
Different Size Tires and Wheels......................5-69
Uniform Tire Quality Grading..........................5-70
Wheel Alignment and Tire Balance..................5-71
Wheel Replacement......................................5-71
Section 5 Service and Appearance Care
5-1

A.Underhood Fuse Block on page 5-95.
B. Remote Positive (+) Terminal. SeeJump Starting on
page 5-38.
C. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-32.
D. Engine Coolant Surge Tank and Pressure Cap.
SeeEngine Coolant on page 5-23.
E. Remote Negative (−) Terminal. SeeJump Starting
on page 5-38.
F.Power Steering Fluid on page 5-31.
G. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-13.
H. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-13.
I. Brake Master Cylinder Reservoir. See “Brake Fluid”
underBrakes on page 5-33.
J. Automatic Transmission Fluid Cap and Dipstick
(Out of View). SeeAutomatic Transmission Fluid on
page 5-19.
K.Engine Air Cleaner/Filter on page 5-17.Engine Oil
Checking Engine Oil
It is a good idea to check the engine oil level at each
fuel ll. In order to get an accurate reading, the oil must
be warm and the vehicle must be on level ground.
The engine oil dipstick handle is a yellow loop. See
Engine Compartment Overview on page 5-12for
the location of the engine oil dipstick.
1. Turn off the engine and give the oil several minutes
to drain back into the oil pan. If this is not done, the
oil dipstick might not show the actual level.
2. Pull out the dipstick and clean it with a paper towel
or cloth, then push it back in all the way. Remove it
again, keeping the tip down, and check the level.
5-13

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

How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/lter, remove the lter from the
vehicle and lightly shake the lter to release loose dust
and dirt. If the lter remains caked with dirt, a new lter is
required.
To inspect or replace the lter:
1. Remove the two screws on the top of the engine air
cleaner/lter cover.
2. Lift up the outboard side of the cover at an angle
while pulling toward you. This is necessary due to the
two hinges located on the inboard side of the cover.3. Remove the engine air cleaner/lter and any loose
debris that may be found in the air cleaner base.
4. Inspect or replace the air lter element.
To reinstall the cover:
1. Align the two hinges located on the inboard side of
the cover.
2. Push the cover slightly down and towards the
engine to engage the tabs in the hinges and
align the two screws.
3. Tighten the two screws on the top of the engine air
cleaner/lter cover.
{CAUTION:
Operating the engine with the air cleaner/lter off
can cause you or others to be burned. The air
cleaner not only cleans the air; it helps to stop
ames if the engine backres. If it is not there and
the engine backres, you could be burned. Do not
drive with it off, and be careful working on the
engine with the air cleaner/lter off.
Notice:If the air cleaner/lter is off, a backre can
cause a damaging engine re. And, dirt can easily get
into the engine, which will damage it. Always have
the air cleaner/lter in place when you are driving.
5-18

Capacities and Specications
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricants on page 6-11for more information.
ApplicationCapacities
English Metric
Air Conditioning RefrigerantFor the air conditioning system refrigerant charge
amount, see the refrigerant caution label located
under the hood. See your dealer/retailer for more
information.
Cooling System 12.6 qt 12.0 L
Engine Oil with Filter 7.5 qt 7.1 L
Fuel Tank 18.5 gal 70.0 L
Transmission 7.4 qt 7.0 L
Wheel Nut Torque 100 lb ft 140Y
All capacities are approximate. When adding, be sure to ll to the approximate level as recommended in this
manual. Recheck uid level after lling.
Engine Specications
Engine VIN Code Transmission Spark Plug Gap
4.6L DOHC V8 Engine Y Automatic 0.050 in (1.27 mm)
4.6L DOHC V8 Engine 9 Automatic 0.050 in (1.27 mm)
5-103