1998 OLDSMOBILE SILHOUETTE ignition

Activating the Theft-Deterrent Feature
The instructions which follow explain how to enter your
secret code
to activate the THEFTLOCK system. It is
recommended that you read through all nine steps
before starting the procedure.
NOTE: If you allow more than
15 seconds to elapse
between any steps, the radio automatically reverts to
time and you must start the procedure over at Step
4.
1.
2.
3.
4.
Write down any three or four-digit number from
000 to 1999 and keep it in a safe place separate from
the vehicle.
Turn the ignition to ACCESSORY or RUN.
Turn the radio
off.
Press the 1 and 4 buttons together. Hold them down
until
--- shows on the display. Next you will use the
secret code number which
you have written down.
5. Press MN and 000 will appear on the display.
6. Press MN again to make the last two digits agree
with your code.
7. Press HR to make the first one or two digits agree
with your code.
8. Press AM-FM after you have confirmed that the
code matches the secret code
you have written down.
The display will show REP to let you know that you
need to repeat Steps
5 through 7 to confirm your
secret code.
9. Press AM-FM and this time the display will show
SEC to let you know that your radio is secure. The
indicator by the volume control will begin flashing
when the ignition
is turned off.
3-22
ProCarManuals.com

Unlocking the Theft-Deterrent Feature After a
Power Loss
Enter your secret code as follows; pause no more than
15 seconds between steps:
1.
LOC appears when the ignition is on.
2. Press MN and 000 will appear on the display.
3. Press MN again to make the last two digits agree
with your code.
4. Press HR to make the first one or two digits agree
5. Press AM-FM after you have confirmed that the
with your code.
code matches the secret code you have written down.
The. display will show SEC, indicating the radio is
now operable and secure.
If you enter the wrong code eight times, INOP will
appear on the display. You will have to wait an hour
with the ignition
on before you can try again. When you
try again, you will only have three chances to enter the
correct code before INOP appears.
If you lose
or forget your code, contact your retailer.
Disabling the Theft-Deterrent Feature
Enter your secret code as follows; pause no more than
15 seconds between steps:
1. Turn the ignition to ACCESSORY or RUN.
2. Turn the radio off.
3. Press the 1 and 4 buttons together. Hold them down
until
SEC shows on the display.
4. Press MN and 000 will appear on the display.
5. Press MN again to make the last two digits agree
with your code.
6. Press HR to make the first one or two digits agree
7. Press AM-FM after you have confirmed that the
with your code.
code matches the secret code you have written down.
The display will show
---, indicating that the radio is
no longer secured.
If the code entered is incorrect, SEC will appear on the
display. The radio will remain secured until the correct
code
is entered.
When battery power is removed and later applied to a
secured radio,
the radio won’t turn on and LOC will
appear on the display.
To unlock a secured radio, see “Unlocking the
Theft-Deterrent Feature After a Power
Loss” earlier in
this section.
ProCarManuals.com

Care of Your Cassette Tape Player
A tape player that is not cleaned regularly can cause
reduced sound quality, ruined cassettes or a damaged
mechanism. Cassette tapes should be stored in their
cases away from contaminants, direct sunlight and
extreme heat. If they aren’t, they may not operate
properly or may cause failure of the tape player.
Your tape player should be cleaned regularly after every
50 hours of use. Your radio may display CLN to indicate
that you have used your tape player for
50 hours without
resetting the tape clean timer. If this message appears
on
the display, your cassette tape player needs to be
cleaned. It will still play tapes, but you should clean it as
soon as possible to prevent damage to your tapes and
player.
If you notice a reduction in sound quality, try a
known good cassette to see if it
is the tape or the tape
player at fault. If this other cassette has no improvement
in sound quality, clean the tape player.
The recommended cleaning method for your cassette
tape player
is the use of a scrubbing action,
non-abrasive cleaning cassette with pads which scrub
the tape head as the hubs of the cleaner cassette turn.
The recommended cleaning cassette
is available through
your retail facility
(GM Part No. 12344789). When using a
scrubbing action, non-abrasive cleaning
cassette, it is normal for the cassette to eject because
your unit is equipped with a cut tape detection feature
and a cleaning cassette may appear as a broken tape.
To
prevent the cleaning cassette from being ejected, use the
following steps.
1. Turn the ignition to RUN or ACCESSORY.
2. Turn the radio off.
3. Press and hold the TAPE AUX button for five
seconds. The tape symbol on the display will flash
for two seconds.
4. Insert the scrubbing action cleaning cassette.
5. Eject the cleaning cassette after the manufacturer’s
recommended cleaning time.
When the cleaning cassette has been ejected, the cut tape
detection feature is active again.
You may also choose a non-scrubbing action, wet-type
cleaner which uses a cassette with a fabric belt to clean
the tape head. This type of cleaning cassette will not
eject on its own.
A non-scrubbing action cleaner may
not clean as thoroughly as the scrubbing type cleaner.
The use of a non-scrubbing action, dry-type cleaning
cassette is not recommended.
3-26
ProCarManuals.com

Avoid needless heavy braking. Some people drive in
spurts
-- heavy acceleration followed by heavy
braking
-- rather than keeping pace with traffic. This is a
mistake. Your brakes may not have time to cool between
hard stops. Your brakes will wear out much faster if you
do a lot
of heavy braking, If you keep pace with the
traffic and allow realistic following distances,
you will
eliminate a lot of unnecessary braking. That means
better braking and longer brake life.
If your engine ever stops while you’re driving, brake
normally but don’t pump your brakes. If you
do, the
pedal may get harder
to push down. If your engine
stops, you will still have
some power brake assist. But
you will use
it when you brake. Once the power assist is
used up, it may take longer to stop and the brake pedal
will be harder to push.
Anti-Lock Brakes (ABS)
Your vehicle has anti-lock brakes (ABS). ABS is an
advanced electronic braking system that will help
prevent a braking skid.
When you start your engine, or when you begin to drive
away, your anti-lock brake system will check itself. You
may hear
a momentary motor or clicking noise while
this test is going on, and
you may even notice that your
brake pedal moves
a little. (You may also hear a clicking
noise if you leave the ignition in the
RUN position for
about four seconds before starting the vehicle.) This
is normal.
If there’s a problem with the
anti-lock brake system, this
warning light will stay on or
flash. See “Anti-Lock
Brake System Warning
Light’’ in the Index.
ProCarManuals.com

If you drive regularly in steep country, or if you’re
planning to visit there, here are some tips that can make
your trips safer and more enjoyable.
Keep your vehicle in good shape. Check all fluid
levels and also the brakes, tires, cooling system
and transaxle. These parts can work hard on
mountain roads.
Know how to go down hills. The most important
thing to know is this: let your engine do some
of the
slowing down. Shift to a lower gear when you go
down a steep or long hill.
L
CAUTION:
If you don’t shift down, your brakes could
get
so hot that they wouldn’t work well. You
would then have poor braking or even none going
down a hill. You could crash. Shift down to let
your engine assist your brakes on a steep
downhill slope. Coasting downhill
in NEUTRAL (N) or with
the
ignition
off is dangerous. Your brakes wiU have to
do
all the work of slowing down. They could get so
hot that they wouldn’t work well. You would then
have poor braking or even none
going down a hill.
You could crash. Always have your engine running
and your vehicle in gear when you go downhill.
Know how to go uphill. You may want to shift down
to a lower gear. The lower gears help cool your engine
and transaxle, and
you can climb the hill better.
Stay in your own lane when driving on two-lane
roads in hills or mountains. Don’t swing wide or cut
across
the center of the road. Drive at speeds that let
you stay in your own lane.
0 As you go over the top of a hill, be alert. There could be
something in your lane, like a stalled
car or an accident.
You may see highway signs on mountains that warn of
special problems. Examples are long grades, passing or
no-passing zones, a falling rocks area or winding
roads. Be alert to these and take appropriate action.
4-25
ProCarManuals.com

NOTICE:
To avoid the possibility of the vehicles rolling, set
the parking brake firmly on both vehicles
involved in the jump start procedure. Put an
automatic transaxle in
PARK (P).
3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or accessory power outlet. Turn
off all lamps
that aren’t needed as well as radios. This will avoid
sparks and help save both batteries.
In addition, it
could save your radio!
I NOTICE:
If you leave your radio on, it could be badly
damaged. The repairs wouldn’t be covered by
your warranty.
JTION:
--
An electric fan can start up even when the engine
is not running and can injure you. Keep hands,
clothing and tools away from any underhood
electric fan.
Your vehicle has a remote
positive
(+) jump starting
terminal. The terminal is
under a tethered cap at the
front of the underhood fuse
and relay center. Pull up the
cap to access the remote
positive
(+) terminal.
4. Open the hoods and locate the batteries. Find
the positive
(+) and negative (-) terminals on
each battery. You
should always use
the remote positive (+) terminal
instead
of the positive (+) terminal on your battery.
5-4
ProCarManuals.com

5. Replace the bulb(s) by pulling the old one(s) out
and gently pushing the
new one(s) into the bulb
holder socket.
7. Reinstall the taillamp assembly by inserting the
outboard locatingketaining pins until the lamp is
seated. Secure with the inboard screws.
For any bulb changing procedure not listed in this
section, contact your retailer service department.
Windshield Wiper
Blade Replacement
For the proper windshield wiper blade length and type,
see “Replacement Parts” in the Index.
Replacement blades come in different types
and are
removed
in different ways. Here’s how to remove the
type with a release clip:
1. Turn the wipers on to the lowest intermittent setting.
2. Turn off the ignition while the wipers are at the
outer positions of the wipe pattern. The blades are
more accessible for removalheplacement while in
A. Tail Bulb C. Turn Signal Bulb
B. Back-up Bulb D. Stop/Tail Bulb this position.
6. Snap the bulb holder back into place making sure all
retaining tabs
are properly over the bulb holder tabs.
3. Pull the windshield wiper arm away from the
windshield
or backglass.
6-38
ProCarManuals.com

Maxi Fuse
5-IGN MAIN 1
6-COOL FAN 1
7-BATT MAIN
1
8-IGN MAIN 2
Ignition Switch to Fuses (UP):
ABS/TCS IGN, CRUISE, DRL,
ELEC PRNDL, IGN
1, PSD,
SIR, T/SIG and PCM [IGN
MAIN Relay (Underhood
Electrical Center Fuses: A/C
INJ, TCC)]
CLU, ELEK IGN, IGN 1-U/H,
Coolant
Fans
Fuses
(UP): ABS MOD BATT,
CIGARIDLC, CTSY LAMP,
FRT PWR SCKT, PWR LOCK,
PWR MIRROR and RR
PWR SCKT
Ignition Switch to Fuses
(UP):
BCM PRGRM, FRT HVAC
LOWIMED BLWR, FRT
WPRNSHR, HVAC/DRL,
MALL/RADIO/DIC, PWR
QRT VENT, RR HVAC, RR
WPRNSHR, SUNROOF,
SWC ACCY and PWR WDO
Circuit Breaker
Mini Relays
9-COOL FAN
10-COOL FAN
2
1 1 -1GN MAIN
12-COOL
FAN 1
Micro Relays
13-A/C CLU
14-FUEL PUMP
l5-F/PMP SPD
CONT
16-HORN
17-FOG LAMP
Mini Fuse
18-INJ
19-SPARE
20-SPARE RH
FAN
1, LH FAN 2
LH FAN 2
FUSES: A/C CLU, IGN l-U/H,
INS, ELEK IGN, TCC
RH FAN
1, LH FAN 2
A/C Clutch
Fuel Pump
Not Used
Horn
LH Fog Lamp, RH Fog Lamp,
Fog Lamp Indicator
Fuel Injectors 1-6
Not Used Not Used
6-62
ProCarManuals.com