fuel pressure CADILLAC DEVILLE 2004 8.G Owners Manual

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-7
Horn.............................................................3-7
Tilt Wheel.....................................................3-7
Heated Steering Wheel...................................3-8
Turn Signal/Multifunction Lever.........................3-9
Exterior Lamps.............................................3-17
Interior Lamps..............................................3-22
Night Vision System......................................3-25
Ultrasonic Rear Parking Assist (URPA)............3-28
Accessory Power Outlets...............................3-30
Ashtrays and Cigarette Lighter........................3-31
Climate Controls............................................3-32
Dual Climate Control System..........................3-32
Outlet Adjustment.........................................3-37
Rear Climate Control System.........................3-38
Passenger Compartment Air Filter...................3-40
Steering Wheel Climate Controls.....................3-42
Climate Controls Personalization.....................3-43
Warning Lights, Gages, and Indicators............3-44
Instrument Panel Cluster................................3-44
Speedometer and Odometer...........................3-47
Trip Odometer..............................................3-47
Tachometer (Analog Cluster Only)...................3-49Safety Belt Reminder Light.............................3-49
Air Bag Readiness Light................................3-50
Charging System Light..................................3-51
Brake System Warning and Parking Brake
Indicator Light...........................................3-51
Anti-Lock Brake System Warning Light.............3-52
Traction Control System (TCS) Warning Light......3-53
Engine Coolant Temperature Warning Light......3-54
Engine Coolant Temperature Gage..................3-54
Malfunction Indicator Lamp.............................3-55
Oil Pressure Light.........................................3-58
Security Light...............................................3-59
Fog Lamp Light............................................3-59
Lights On Reminder......................................3-60
Cruise Control Light......................................3-60
Fuel Gage...................................................3-60
Fuel Data Display (Digital Cluster Only)...........3-61
Driver Information Center (DIC).......................3-62
DIC Controls and Displays.............................3-62
DIC Warnings and Messages.........................3-65
Climate Controls and Radio System
Personalization..........................................3-73
DIC Vehicle Personalization............................3-74
Trip Computer................................................3-89
Oil Life Indicator...........................................3-89
Section 3 Instrument Panel
3-1

ENGINE OIL LIFE:Press the INFO button to display
ENGINE OIL LIFE, then press and hold the INFO
RESET button until 100% ENGINE OIL LIFE is
displayed. (This only needs to be reset after you
have had the oil changed.)
TRANSMISSION FLUID LIFE:Under normal
conditions, the rate of deterioration of the
transmission uid is slow. SeeScheduled
Maintenance on page 6-4for proper uid and change
intervals. To reset the transmission uid life, press
the INFO button to display TRANS FLUID LIFE, then
press and hold the INFO RESET button until 100%
TRANS FLUID LIFE is displayed. (This only needs to
be reset after you have had the uid changed.)
ON/OFF:Pressing this button turns the Programming
and Personalization Features on and off. (FEATURE
PROGRAMMING must be displayed on the DIC to begin
actual programming.) This button also starts and
stops the timer.
MILES RANGE:(Analog Cluster Only) This message
shows about how many miles you can drive without
relling your fuel tank. Once the range drops below
40 miles (64 km) remaining, the display will show LOW.MPG INST (Instantaneous Miles per Gallon):This
message shows the instantaneous fuel economy which
varies with your driving conditions, such as acceleration,
braking and the grade of the road being traveled.
The INFO RESET button does not function in this mode.
BATTERY VOLTS:This message shows the current
battery voltage. If the voltage is normal the display
will show BATTERY VOLTS OK. If the voltage drops
below 10.5 volts, the display will show BATTERY
VOLTS LOW. If the voltage is above 16 volts, the
display will show BATTERY VOLTS HIGH. If the display
shows the high or low message, you will need to
have your battery checked. SeeDIC Warnings and
Messages on page 3-65for more information.
LF-RF-LR-RR TIRE:On vehicles equipped with the tire
pressure monitor, this message shows the tire pressure
for each tire (left front, right front, left rear and right rear).
Pressing the INFO button will scroll through the tire
pressure for each of the four tires, such as:
34 PSI LF TIRE OK or
234 kPa LF TIRE OK
If a tire pressure is below 25 PSI (172 kPa) or above
38 PSI (265 kPa), the message will appear as shown
above except it will show TIRE LOW or TIRE HIGH as
appropriate. If desired, the tire pressure information
can be programmed not to appear when using the INFO
button to scroll through the DIC displays. SeeDIC
Vehicle Personalization on page 3-74.
3-64

ICE POSSIBLE – 13:This message appears when the
outside air temperature is cold enough to create icy
road conditions.
LEFT REAR DOOR AJAR – 142:The left rear door is
open or ajar when this message appears. The ignition
must be in ON and the transaxle not in PARK (P) for this
message to display. A chime will sound if the vehicle’s
speed is greater than 3 mph (5 km/h).
OIL PRESSURE LOW STOP ENGINE – 35:If this
message appears while the engine is running, stop the
engine and do not operate it until the cause of low
oil pressure is corrected. Severe damage to the engine
can result. A multiple chime will sound when this
message is displayed.
PASSENGER DOOR AJAR – 141:The right front
passenger’s door is open or ajar when this message
appears. The ignition must be in ON and the transaxle
not in PARK (P) for this message to display. A chime
will sound if the vehicle’s speed is greater than
3 mph (5 km/h).
RIGHT REAR DOOR AJAR – 143:The right rear door
is open or ajar when this message appears. The
ignition must be in ON and the transaxle not in PARK (P)
for this message to display. A chime will sound if the
vehicle’s speed is greater than 3 mph (5 km/h).SERVICE AC SYSTEM – 14:This message appears
when the electronic sensors that control the air
conditioning and heating systems are no longer working.
Have the climate control system serviced if you notice
a drop in heating and air conditioning efficiency.
SERVICE AIR BAG – 83:There is a problem with the
air bag system when this message appears. Let
only a qualied technician work on your vehicle. Have
your vehicle serviced by your dealership immediately.
SERVICE CHARGING SYS – 102:This message
will display when a problem with the charging system
has been detected. Have your vehicle serviced at
your dealership.
SERVICE ELECTRICAL SYS – 106:This message will
display if an electrical problem has occurred within
the Powertrain Control Module (PCM) or the ignition
switch. Have your vehicle serviced by your dealership.
SERVICE FUEL SYSTEM – 101:The Powertrain
Control Module (PCM) has detected a problem within
the fuel system when this message appears. Have your
vehicle serviced by your dealership.
3-70

Here are some things you can check before a trip:
Windshield Washer Fluid:Is the reservoir full? Are
all windows clean inside and outside?
Wiper Blades:Are they in good shape?
Fuel, Engine Oil, Other Fluids:Have you checked
all levels?
Lamps:Are they all working? Are the lenses clean?
Tires:They are vitally important to a safe,
trouble-free trip. Is the tread good enough for
long-distance driving? Are the tires all inated to the
recommended pressure?
Weather Forecasts:What is the weather outlook
along your route? Should you delay your trip a
short time to avoid a major storm system?
Maps:Do you have up-to-date maps?
Highway Hypnosis
Is there actually such a condition as “highway hypnosis”?
Or is it just plain falling asleep at the wheel? Call it
highway hypnosis, lack of awareness, or whatever.
There is something about an easy stretch of road with
the same scenery, along with the hum of the tires on the
road, the drone of the engine, and the rush of the
wind against the vehicle that can make you sleepy. Do
not let it happen to you! If it does, your vehicle can
leave the road inless than a second,and you could
crash and be injured.
What can you do about highway hypnosis? First, be
aware that it can happen.
Then here are some tips:
Make sure your vehicle is well ventilated, with a
comfortably cool interior.
Keep your eyes moving. Scan the road ahead and
to the sides. Check your rearview mirrors and your
instruments frequently.
If you get sleepy, pull off the road into a rest,
service or parking area and take a nap, get some
exercise, or both. For safety, treat drowsiness
on the highway as an emergency.
4-25

Service............................................................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of Your
Vehicle......................................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-5
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling Your Tank............................................5-8
Filling a Portable Fuel Container.....................5-12
Checking Things Under the Hood....................5-12
Hood Release..............................................5-13
Engine Compartment Overview.......................5-14
Engine Oil...................................................5-15
Engine Air Cleaner/Filter................................5-22
Automatic Transaxle Fluid..............................5-24
Engine Coolant.............................................5-27
Coolant Surge Tank Pressure Cap..................5-31
Engine Overheating.......................................5-31
Cooling System............................................5-34
Power Steering Fluid.....................................5-40
Windshield Washer Fluid................................5-41
Brakes........................................................5-43Battery........................................................5-46
Jump Starting...............................................5-48
Headlamp Aiming...........................................5-55
Headlamp Horizontal Aiming...........................5-56
Headlamp Vertical Aiming..............................5-57
Bulb Replacement..........................................5-59
Halogen Bulbs..............................................5-59
Headlamps..................................................5-59
Front Turn Signal, Sidemarker, Parking and
Cornering Lamps.......................................5-63
Center High-Mounted Stoplamp (CHMSL).........5-64
Taillamps, Turn Signal, and Stoplamps............5-64
Replacement Bulbs.......................................5-64
Windshield Wiper Blade Replacement..............5-65
Tires..............................................................5-66
Ination - Tire Pressure.................................5-74
Tire Pressure Monitor Operation.....................5-76
Tire Inspection and Rotation...........................5-78
When It Is Time for New Tires.......................5-79
Buying New Tires.........................................5-80
Uniform Tire Quality Grading..........................5-81
Wheel Alignment and Tire Balance..................5-82
Wheel Replacement......................................5-82
Tire Chains..................................................5-84
Section 5 Service and Appearance Care
5-1

Tire Terminology and Denitions
Air Pressure:The amount of air inside the tire pressing
outward on each square inch of the tire. Air pressure
is expressed in pounds per square inch (psi) or
kilopascal (kPa).
Accessory Weight:This means the combined weight
of optional accessories. Some examples of optional
accessories are, automatic transmission, power steering,
power brakes, power windows, power seats, and air
conditioning.
Aspect Ratio:The relationship of a tire’s height to
its width.
Belt:A rubber coated layer of cords that is located
between the plies and the tread. Cords may be made
from steel or other reinforcing materials.
Bead:The tire bead contains steel wires wrapped by
steel cords that hold the tire onto the rim.
Bias Ply Tire:A pneumatic tire in which the plies are
laid at alternate angles less than 90 degrees to the
centerline of the tread.Cold Ination Pressure:The amount of air pressure in
a tire, measured in pounds per square inch (psi) before a
tire has built up heat from driving. SeeInation - Tire
Pressure on page 5-74.
Curb Weight:This means the weight of a motor
vehicle with standard and optional equipment including
the maximum capacity of fuel, oil and coolant, but
without passengers and cargo.
DOT Markings:A code molded into the sidewall of a
tire signifying that the tire is in compliance with the U.S.
Department of Transportation motor vehicle safety
standards. The DOT code includes the Tire Identication
Number (TIN), an alphanumeric designator which can
also identify the tire manufacturer, production plant,
brand and date of production.
GVWR:Gross Vehicle Weight Rating, seeLoading
Your Vehicle on page 4-35.
GAWR FRT:Gross Axle Weight Rating for the front
axle, seeLoading Your Vehicle on page 4-35.
GAWR RR:Gross Axle Weight Rating for the rear axle,
seeLoading Your Vehicle on page 4-35.
5-71

Ination - Tire Pressure
The Tire and Loading Information label, shows the correct
ination pressures for your tires when they’re cold. “Cold”
means your vehicle has been sitting for at least three
hours or driven no more than 1 mile (1.6 km). See
Loading Your Vehicle on page 4-35for more information
on the Tire and Loading Information label.
If you’ll be driving at high speeds (e.g., speeds of
100 mph (160 km/h) or higher), where it is legal, set the
cold ination pressure to the maximum ination
pressure shown on the tire sidewall, or to 38 psi
(265 kPa), whichever is lower. See the example below.
When you end this high-speed driving, return to the
cold ination pressure shown on the Tire and Loading
Information label.
Example:
You’ll nd maximum load and ination pressure molded
on the tire’s sidewall, in small letters, near the rim
ange. It will read something like this: Maximum load
690 kg (1521 lbs) 300 kPa (44 psi) Max. Press.
For this example, you would set the ination pressure
for high-speed driving at 38 psi (265 kPa).Notice:Don’t let anyone tell you that underination
or overination is all right. It’s not. If your tires
don’t have enough air (underination), you can get
the following:
Too much exing
Too much heat
Tire overloading
Bad wear
Bad handling
Bad fuel economy
If your tires have too much air (overination), you
can get the following:
Unusual wear
Bad handling
Rough ride
Needless damage from road hazards
5-74

(h)If you do not use your vehicle under the following
conditions, the uid and lter do not require chage until
the CHANGE TRANS FLUID message appears on
the Driver Information Center. Change automatic
transaxle uid and lter if the vehicle is mainly driven
under one or more of these conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as limousine service.
Uses such as high performance operation.
(i)Drain, ush and rell cooling system. See Engine
Coolant on page 5-27for what to use. Inspect hoses.
Clean radiator, condenser, pressure cap and ller neck.
Pressure test the cooling system and pressure cap.
(j)Check throttle system for interference or binding and
for damaged or missing parts. Replace parts as
needed. Replace any components that have high effort
or excessive wear. Do not lubricate accelerator or
cruise control cables.
(k)A uid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired
and the uid level checked. Add uid if needed.
(l)Inspect throttle body bore and valve plates for
deposits. Open the throttle valve and inspect all
surfaces. Clean as required.Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure the safety,
dependability and emission control performance of your
vehicle. Your GM Goodwrench dealer can assist you
with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-13.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-15for further
details.
Notice:It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your engine not covered by your warranty.
6-9