2003 CADILLAC SEVILLE fuel pressure

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-7
Horn.............................................................3-7
Tilt Wheel.....................................................3-7
Turn Signal/Multifunction Lever.........................3-9
Exterior Lamps.............................................3-16
Interior Lamps..............................................3-21
Ultrasonic Rear Parking
Assist (URPA)...........................................3-24
Accessory Power Outlets...............................3-26
Ashtrays and Cigarette Lighter........................3-27
Climate Controls............................................3-28
Dual Climate Control System..........................3-28
Outlet Adjustment.........................................3-33
Rear Climate Control System.........................3-34
Passenger Compartment Air Filter...................3-35
Steering Wheel Climate Controls.....................3-35
Climate Controls Personalization.....................3-36
Warning Lights, Gages and Indicators.............3-37
Instrument Panel Cluster................................3-38
Speedometer and Odometer...........................3-39
Tachometer.................................................3-41Safety Belt Reminder Light.............................3-41
Air Bag Readiness Light................................3-42
Charging System Light..................................3-43
Brake System Warning and Parking Brake
Indicator Light...........................................3-43
Anti-Lock Brake System Warning Light.............3-44
Traction Control System (TCS)
Warning Light...........................................3-45
Engine Coolant Temperature Warning Light......3-46
Engine Coolant Temperature Gage..................3-46
Malfunction Indicator Lamp.............................3-47
Oil Pressure Light.........................................3-50
Security Light...............................................3-51
Fog Lamp Light............................................3-51
Lights On Reminder......................................3-51
Cruise Control Light......................................3-51
Fuel Gage...................................................3-52
Driver Information Center (DIC).......................3-53
DIC Controls and Displays.............................3-53
DIC Warnings and Messages.........................3-56
Climate Controls and Radio System
Personalization..........................................3-63
DIC Vehicle Personalization............................3-64
Section 3 Instrument Panel
3-1

OUTSIDE TEMP (Temperature):This message shows
the outside temperature. After this display has been
on the DIC for about ®ve seconds, the words OUTSIDE
TEMP will disappear so that only the temperature
remains.
MILES RANGE:This message shows about how many
miles you can drive without re®lling 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. See
DIC Warnings and
Messages on page 3-56for more information.LF-RF-LR-RR TIRE (If Equipped):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 the following:
·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. See
DIC
Vehicle Personalization on page 3-64.
If a low or high tire pressure is detected by the system
while driving, a CHECK TIRE PRESSURE message
will appear in the display. If this occurs, press the INFO
button to scroll to the tire(s) with a low or high
pressure condition. See
DIC Warnings and Messages
on page 3-56for more information.
ENG/MET (English/Metric):Press this button to
display information in the English (miles) or metric
(kilometers) system.
3-55

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.
SERVICE IDLE CONTROL ± 107:A problem with the
idle control has occurred when this message displays.
Have your vehicle serviced by your dealership.
SERVICE STABILITY SYS ± 54:If you ever see the
SERVICE STABILITY SYS message, it means
there may be a problem with your stability enhancement
system. If you see this message, try to reset the
system (stop, turn off the engine, then start the engine
again). If the SERVICE STABILITY SYS message
still comes on, it means there is a problem. You should
see your dealer for service. Reduce your speed and
drive accordingly. A single chime will also sound when
this message is displayed.
SERVICE STEERING ± 127:This message is displayed
when a problem has been detected in the magnetic
speed variable assist steering system. If message
comes on, service is required.SERVICE SUSPENSION SYS ± 84:This message is
displayed to indicate that the suspension system is
not operating properly. To correct this problem, have
your vehicle serviced at your dealership.
SERVICE THEFT SYSTEM ± 34:This message means
there is a problem with the PASS-Key
žIII system. A
fault has been detected in the system which means that
the system is disabled and is not protecting the
vehicle. The vehicle usually restarts, however, you may
want to take your vehicle to your dealer before turning
off the engine.
SERVICE TPM SYSTEM ± 51:When this message is
displayed, the Tire Pressure Monitor (TPM) system
is not working properly. See your dealer for service.
SERVICE TRANSMISSION ± 100:See your dealer
for repair.
SERVICE VEHICLE SOON ± 3:This message is
displayed when a non-emissions related powertrain
malfunction occurs. Have your vehicle serviced by
a technician as soon as possible.
SPEED LIMIT TO 90 ± 113:A failure in the suspension
control system has occurred when this message
appears. The Powertrain Control Module (PCM)
determines the speed to which your vehicle is limited.
Have your vehicle serviced if this message appears.
3-61

When you want to leave the freeway, move to the
proper lane well in advance. If you miss your exit, do
not, under any circumstances, stop and back up. Drive
on to the next exit.
The exit ramp can be curved, sometimes quite sharply.
The exit speed is usually posted. Reduce your speed
according to your speedometer, not to your sense
of motion. After driving for any distance at higher
speeds, you may tend to think you are going slower
than you actually are.
Before Leaving on a Long Trip
Make sure you're ready. Try to be well rested. If you
must start when you're not fresh Ð such as after a day's
work Ð don't plan to make too many miles that ®rst
part of the journey. Wear comfortable clothing and shoes
you can easily drive in.
Is your vehicle ready for a long trip? If you keep it
serviced and maintained, it's ready to go. If it needs
service, have it done before starting out. Of course,
you'll ®nd experienced and able service experts in GM
dealerships all across North America. They'll be
ready and willing to help if you need it.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 in¯ated to the
recommended pressure?
·Weather Forecasts:What's 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?
4-23

Loading Your Vehicle
Two labels on your vehicle show how much weight it
may properly carry. The Tire-Loading Information
label found on the rear edge of the driver's door tells
you the proper size, speed rating and recommended
in¯ation pressures for the tires on your vehicle. It also
gives you important information about the number
of people that can be in your vehicle and the total weight
that you can carry. This weight is called the Vehicle
Capacity Weight and includes the weight of all
occupants, cargo and all options not installed in the
factory.The other label is the Certi®cation label, found on the
rear edge of the driver's door. It tells you the gross
weight capacity of your vehicle, called the Gross Vehicle
Weight Rating (GVWR). The GVWR includes the
weight of the vehicle, all occupants, fuel and cargo.
Never exceed the GVWR for your vehicle, or the Gross
Axle Weight Rating (GAWR) for either the front or
rear axle.
4-33

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside of Your
Vehicle......................................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-6
Filling Your Tank............................................5-6
Filling a Portable Fuel Container.....................5-10
Checking Things Under
the Hood....................................................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Air Cleaner/Filter................................5-19
Automatic Transaxle Fluid..............................5-21
Engine Coolant.............................................5-25
Coolant Surge Tank Pressure Cap..................5-28
Engine Overheating.......................................5-28
Cooling System............................................5-31Power Steering Fluid.....................................5-38
Windshield Washer Fluid................................5-39
Brakes........................................................5-40
Battery........................................................5-43
Jump Starting...............................................5-45
Headlamp Aiming...........................................5-51
Headlamp Horizontal Aiming...........................5-53
Headlamp Vertical Aiming..............................5-53
Bulb Replacement..........................................5-55
High Intensity Discharge (HID) Lighting............5-55
Halogen Bulbs..............................................5-56
Headlamps..................................................5-56
Front Turn Signal Lamps...............................5-59
Center High-Mounted Stoplamp (CHMSL).........5-60
Taillamps and Turn Signal Lamps...................5-60
Replacement Bulbs.......................................5-61
Windshield Wiper Blade Replacement..............5-62
Tires..............................................................5-63
In¯ation -- Tire Pressure................................5-64
Tire Pressure Monitor System.........................5-65
Tire Inspection and Rotation...........................5-67
When It Is Time for New Tires.......................5-68
Section 5 Service and Appearance Care
5-1

In¯ation -- Tire Pressure
The Tire-Loading Information label, which is located on
the rear edge of the driver's side rear door, shows
the correct in¯ation pressures for your tires when they're
cold. ªColdº means your vehicle has been sitting for at
least three hours or driven no more than 1 mile (1.6 km).
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 in¯ation pressure to the maximum in¯ation
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 in¯ation pressure shown on the Tire-Loading
Information label.
Example:
You'll ®nd maximum load and in¯ation 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 in¯ation pressure
for high-speed driving at 38 psi (265 kPa).
Notice:Don't let anyone tell you that underin¯ation
or overin¯ation is all right. It's not. If your tires
don't have enough air (underin¯ation), 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 (overin¯ation), you
can get the following:
·Unusual wear
·Bad handling
·Rough ride
·Needless damage from road hazards
5-64

Part B: Owner Checks and Services
Listed in this part are owner checks and services
which should be performed at the intervals speci®ed to
help ensure the safety, dependability and emission
control performance of your vehicle.
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
in Part D.
At Each Fuel Fill
It is important for you or a service station attendant 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 5-13for further
details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOLž
coolant mixture if necessary. SeeEngine Coolant
on page 5-25for further details.
Windshield Washer Fluid Level Check
Check the windshield washer ¯uid level in the windshield
washer tank and add the proper ¯uid if necessary.
See
Windshield Washer Fluid on page 5-39for further
details.
At Least Once a Month
Tire In¯ation Check
Visually inspect your tires and make sure tires are
in¯ated to the correct pressures. Don't forget to check
your spare tire. See
Tires on page 5-63for further
details.
Cassette Tape Player Service
Clean cassette tape player. Cleaning should be done
every 50 hours of tape play. SeeAudio System(s)
on page 3-78for further details.
6-9