oil change CADILLAC DEVILLE 1998 7.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine Driver Information Center (DIC)
This display gives you the status of many of your
vehicle’s systems. The DIC is also used to display driver
personalization features and warningktatus messages.
Digital Control Buttons (DeVille and
DeVille d’Elegance Only)
DISPLAY ON/OFF: Pressing this button will turn off
the Driver Information Center (DIC), Electronic Climate
Control (ECC), fuel data center, the fuel gage, trip
odometer and odometer. While the displays are off,
pressing the INFORMATION button will only turn on
the DIC. If the TRIP button is pressed or the fuel level
falls below
4 gallons (15.2 L), all of the displays will
come back on.
ENGMET: You can change the display from English
(miles) to metric (kilometers) by pressing this button.
The same button also changes other readings (like
temperature, fuel and odometer).
TRIP: By using this button, you can tell how far you’ve
gone since you last set the TRIP back to zero. To reset,
press and hold the button until zeros appear. If your
vehicle is domestic, the trip odometer will return to zero
after 999.9 miles
(1 609 km). If your vehicle is
Canadian, the trip odometer will return
to zero after 1
999.9 km (1,242 miles).
INFORMATION: Pressing this button repeatedly will
display the MPG AVG,
GAL FUEL USED, AVG MPH,
ENGINE RPM, BATTERY VOLTS, COOLANT TEMP
and OIL LIFE LEFT.

Downloaded from www.Manualslib.com manuals search engine TIMER: This feature is like a stopwatch, in that
you
can clock the time it takes to get from one point
to another.
To operate, press the TIMER button until TIMER
OFF
0O:OO:OO is displayed on the Driver Information Center
@IC). Each of the fields for the hours, minutes and
seconds are two numeric digits.
Once TIMER
OFF 0O:OO:OO is displayed, press the
TIMER button to start the timing feature. Press the
TIMER button again to stop it.
If you will be starting
and stopping your vehicle
-- during a trip for
instance
-- the TIMER feature will automatically start
timing where it left
off when you last stopped. To reset
it, press and hold the RESET button until the display
reads TIMER
0O:OO:OO. Press the INFORMATION
button
to exit from the TIMER function.
RESET Pressing this button will reset the MPG AVG,
GAL FUEL USED, AVG
MPH and OIL LIFE LEFT.
Pressing RESET when a non-resettable display appears
will cause a “recall” mode to occur. When this happens,
all Driver Information Center (DIC) warning messages
that have been displayed since the ignition key was
turned to
RUN will redisplay. If no messages were
displayed, a MONITORED SYSTEMS
OK message
will appear.
MPG AVG (Reset): Press the INFORMATION button
to display the MPG AVG (Average Fuel Economy), then
press and hold the RESET button until
0.0 MPG AVG
is displayed.
GAL FUEL USED (Reset): Press the INFORMATION
button to display the GAL FUEL
USED on the Driver
Information Center (DIC), then press and hold the
RESET button until
0.0 GAL FUEL USED is displayed.
AVG MPH (Reset): Press the INFORMATION
button to display the AVG MPH (Average Speed), then
press and hold the RESET button until
0.0 AVG MPH
is displayed.
OIL LIFE LEFT (Reset): Press the INFORMATION
button
to display the OIL LIFE LEFT, then press and
hold the RESET button until
100% OIL LIFE LEFT is
displayed. (This only needs to be reset after you have
had the oil changed.)
2-80

Downloaded from www.Manualslib.com manuals search engine Analog Control Buttons (DeVille Concours Only)
INFO RESET Pressing this button will reset the MPG
AVG, GAL FUEL USED, AVG MPH and OIL LIFE
LEFT. Pressing INFO RESET when a non-resettable
display appears will cause a “recall” mode to occur.
When this happens, all Driver Information Center (DIC) warning messages that have been displayed since the
ignition key was turned to RUN will redisplay. If no
messages were displayed,
a MONITORED SYSTEMS
OK message will appear.
MPG AVG (Reset): Press the INFO button to display
the MPG AVG (Average Fuel Economy), then press and
hold the INFO RESET button until
0.0 MPG AVG
is displayed.
GAL FUEL USED (Reset): Press the INFO button to
display the GAL FUEL
USED on the Driver
Information Center (DIC), then press and hold the
INFO
RESET button until 0.0 GAL FUEL USED is displayed.
AVG MPH (Reset): Press the INFO button to display
the AVG MPH (Average Speed), then press and hold the
INFO RESET button until
0.0 AVG MPH is displayed.
OIL LIFE LEFT (Reset): Press the INFO button to
display the OIL LIFE LEFT, then press and hold the
INFO RESET button until
100% OIL LIFE LEFT is
displayed. (This only needs to be reset after you have
had the oil changed.)
TRIP RESET By using this button, you can tell how
far you’ve gone since you last set the
TRIP RESET back
to zero. To reset, press and hold the button until zeros
appear. If your vehicle is domestic, the trip odometer
will return to zero after 999.9 miles
(1 609 km). If your
vehicle is Canadian, the trip odometer will return to zero
after
1 999.9 km (1,242 miles).
INFO: Pressing this button repeatedly will display the
RANGE, MPG AVG, MPG INST, GAL FUEL USED,
MPH, AVG MPH, BATTERY VOLTS and OIL
LIFE LEFT.

Downloaded from www.Manualslib.com manuals search engine BATTERY VOLTAGE HIGH -’ 8: This message
shows that the electrical charging system is
overcharging (more than 16 volts). To avoid being
stranded, have the electrical system checked by your
dealership. You can reduce the charging overload by
using the accessories. Turn on the lamps and radio, set
the climate control on AUTO and the fan speed on HI,
and turn the rear window defogger on.
You can monitor
battery voltage on the Driver Information Center (DIC)
by pressing the
INFO button. The normal range is
11.5 to 15.5 volts when the engine is running.
BATTERY VOLTAGE LOW - 6: This message will
appear when the electrical system is charging less than
10 volts or if the battery has been drained. If this
message appears immediately after starting,
it is possible
that the generator can still recharge the battery. The
battery should recharge and may take a few hours to do
so. Consider using an auxiliary charger to boost the
battery after returning home or to a final destination.
(Be sure to follow the manufacturer’s instructions when
recharging the battery.)
If this message appears while driving or after starting
your vehicle and stays on, have it checked immediately
to determine the cause of this problem.
To help the
generator recharge the battery quickly, you can reduce
the load on the electrical system by turning
off the
accessories. You can monitor battery voltage on the Driver Information Center (DIC) by pressing the
INFORMATION
(INFO) button. The normal range is
11.5 to 15.5 volts.
BRAKE VACUUM PROBLEM -108: The circuit in
the brake booster vacuum has shorted or is loose when
this message appears. Your vehicle may lose power
brakes but you will still have the use of manual brakes.
The power brakes will not be affected if the problem
is
caused by a failed sensor. Have your vehicle serviced
immediately at your dealership.
CHANGE ENGINE OIL - 82: This means that the life
of the engine oil has expired and it should be changed
within
200 miles (322 km). See “Engine Oil” and “Filter
Recommendations’’ in the Maintenance Schedule
booklet. After an oil change, the Oil Life Indicator must be reset. For more information, see “How to Reset the
Oil Life Indicator” in the Index.
CHANGE TRANS FLUID - 47: This message will
appear when it is time to replace the transaxle fluid. See
the Maintenance Schedule booklet for the proper fluid
and change intervals.
CHECK BRAKE FLUID - 37: This message will
display if the ignition is in RUN to inform the driver that
the brake fluid level is low. Check the brake reservoir
level and add fluid as needed. Have the brake system
2-83
__

Downloaded from www.Manualslib.com manuals search engine LOW-REFRIG A/C OFF - 12: This message means
that the air conditioning system detects a refrigerant
level that is low enough to cause damage to the air
conditioning compressor.
To avoid damage, the air
conditioning compressor automatically
turns off and the
electronic climate control system will automatically switch from AUTO to
ECON and remain there.
Have the air conditioning system serviced if this
message appears.
MONITORED SYSTEMS OK - 1: This message only
appears in the “recall” mode by pressing the RESET
(INFO RESET) button. It lets you know that no other
messages are stored or currently active.
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 also sound when this
message is displayed.
OPTIONS NOT SET - 99: This message will display if
a fault has occurred in your vehicle’s memory. See your
dealership for service.
PROGRAM PASS KEY - 31: This warning message
displays when the PASS-Key I1 pellet information has
not been programmed into your vehicle. See your dealership for service.
PHONE NOT PRESENT - 126: This message will
appear when the steering wheel controls for the optional
phone system are activated but the phone is not plugged
into the vehicle. Make sure your phone is plugged in.
If
your phone appears to be connected, see your dealership
for service.
REMOVE KEY - 70: This message will appear when
the Personalized Automotive Security System
(PASS-Key
11) is unable to read the pellet on the
ignition key or an improper key pellet has been inserted.
This message typically appears following the display of
STARTING DISABLED,
REMOVE KEY. The
instrument panel cluster will then run a timer and
change the messages to WAIT
3 MINUTES, WAIT
2 MINUTES, WAIT 1 MINUTE and then START CAR.
When the REMOVE KEY message is displayed, remove
the ignition key. Check the ignition key for damage. If it
is damaged, it may need to be replaced. If you see no
damage, clean the pellet contacts with a soft cloth or
napkin before inserting the key back into the ignition.
Have your vehicle serviced if the message still appears.
SERVICE A/C 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.

Downloaded from www.Manualslib.com manuals search engine Oil Life 1 iicator
This feature lets you know when to change the engine
oil. It's based on the engine oil temperatures and your
driving patterns.
To see the display, press the
INFORMATION (INFO) button until
XX OIL LIFE
LEFT appears.
If you see 99% OIL LIFE LEFT,
99 percent of your current oil life remains. The Driver Information Center
(DIC) may display a
CHANGE
ENGINE OIL message. Always keep a
written record of the mileage and date when
you
changed your oil. For more information, see the
Maintenance Schedule booklet. If you see CHANGE
ENGINE
OIL, it means that you have less than
10 percent of the oil life left and you should consider
changing your engine oil.
The system should indicate changing the oil between
3,000 miles (5 000
km) and 7,500 miles (12 500 km).
It may indicate changing the oil before 3,000 miles
(5 000
km) depending on your driving habits. If the
vehicle has been driven 7,500 miles
(12 500 km), it will
indicate to change the oil. If you drive in a dusty area, you
should change your
oil every 3,000 miles (5 000 krn) or
three months (whichever comes first) unless the display indicates changing it sooner. The system doesn't check
how much oil you have, so you'll still have to check for
that. To see how,
see "Engine Oil" in the Index. '
When the oil is changed, you'll need to reset the system.
To reset, display the Oil Life Indicator by pressing the
INFORMATION
(INFO) button. Then press and hold
the RESET button until the display shows
100% OIL
LIFE LEFT.

Downloaded from www.Manualslib.com manuals search engine Engine Overheating
You will find an ENGINE COOLANT HOT, IDLE
ENGINE message or an ENGINE
OVERHEATED
STOP, ENGINE message on the Driver Information
Center (DIC). You will
also hear a chime. There is also
an engine temperature warning light andor gage on the
instrument panel. See “Engine Coolant Temperature
Warning Light” or “Engine Coolant Temperature Gage”
in the Index.
Overheated Engine Protection
Operating Mode
NOTICE:
After driving in the overheated engine protection
operating mode, to avoid engine damage, allow
the engine to cool before attempting any repair.
The engine oil will be severely degraded. Repair
the cause of coolant loss, change the oil and reset
the oil life indicator. See “Engine Oil, When to
Change” in the Index.
Should an overheated engine condition exist and the
message ENGINE OVERHEATED STOP ENGINE is
displayed, an overheat protection mode which alternates
firing groups
of four cylinders helps prevent engine
damage.
In this mode, you will notice a loss in power
and engine performance. This operating mode allows
your vehicle to be driven to a safe place in
an
emergency; you may drive up to 50 miles (80 lun).
Towing a trailer in the overheat protection mode should
be avoided.
5-15

Downloaded from www.Manualslib.com manuals search engine 6. Remove any rust or dirt
from the wheel bolts,
mounting
surfaces and
spare wheel.
-
Rust or dirt on the wheel, or on the parts to
which
it is fastened, can make the wheel nuts
become loose after
a time. The wheel could come
off and cause an accident. When you change
a
wheel, remove any rust or dirt from the places
where the wheel attaches to the vehicle. In an
emergency, you can use
a cloth or a paper towel
to do this;
but be sure to use a scraper or wire
brush later,
if you need to, to get all the rust or
dirt off.
A CAJTION:
Never use oil or grease on studs or nuts. If you
do, the nuts might come loose. Your wheel could
fall
off, causing a serious accident.
7. Replace the wheel nuts
with the rounded end
of
the nuts toward the
wheel. Tighten each nut
5-30

Downloaded from www.Manualslib.com manuals search engine What Kind of Engine Oil to Use
Oils recommended for your vehicle can be identified by
looking for the “Starburst” symbol. This symbol
indicates that the oil has been certified by the American
Petroleum Institute
(API). Do not use any oil which
does not carry this Starburst symbol.
If you change your own
oil, be sure you use oil
that has the Starburst
symbol on the front of the
oil container. If you have
your oil changed
for you,
be sure the oil put into
your engine
is American
Petroleum Institute certified
for gasoline engines.
You should also use the proper viscosity oil for your
vehicle,
as shown in the following chart:
RECOMMENDED SAE VtSCOSI’lY GRADE ENGINE OILS I -
FOR BEST FUEL fnn*7Y AND COW Sgmr-*** I, SELECT THE LOWEST
SAE VISCOSITY JIL FOR THE EX1 --..- TEMPERATURE RANGE. I
HOT
WEATHER
‘OF m OC’I
+loo- - +3a
+80- - +27
+60- - t16
+40- -+4
+20- --7
0- --la
SAE sw-30
COLD
WEATHER
1- SAL I law-30
PREFERRED above W (-18%)
LoOK
FOR MIS
SYMBOL
DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED
6-13

Downloaded from www.Manualslib.com manuals search engine As shown in the chart, SAE 1OW-30 is best for your
vehicle. However, you
can use SAE 5W-30 if it’s going
to be colder than 60” F (1 6°C) before your next oil
change. When it’s
very cold, you should use SAE
5W-30. These numbers on an oil container show its
viscosity, or thickness.
Do not use other viscosity oils,
such as
SAE 20W-50.
I NOTICE:
Use only engine oil with the American Petroleum
Institute Certified
For Gasoline Engines
“Starburst” symbol. Failure to use the
recommended oil can result in engine damage not
covered by your warranty.
GM Goodwrench@ oil meets all the requirements for
your vehicle.
If you are in
an area where the temperature falls below
-20°F (-29”C), consider using either an SAE 5W-30
synthetic oil or an SAE OW-30 oil. Both will provide
easier cold starting
and better protection for your engine
at extremely low temperatures.
Engine Oil Additives
Don’t add anything to your oil. Your dealer is ready to
advise if you think something should be added.
When to Change Engine Oil
Your vehicle has an Oil Life Indicator. This feature
will let you know when to change your oil
and
filter -- usually between 3,000 miles (5 000 km) and
7,500 miles (12 500 km) since your last oil change.
Under severe conditions, the indicator may come
on
before 3,000 miles (5 000 km). Never drive your
vehicle more than
7,500 miles (12 500 km) or
12 months (whichever occurs first) without an
oil change.
The system won’t detect dust in the oil.
So, if you
drive in a dusty area, be sure to change your oil every
3,000 miles (5
000 km) or sooner. Remember to reset
the Oil Life Indicator when the oil has been changed.
For more information, see “Oil Life Indicator”
in
the Index.
6-14