1998 GMC SAVANA ignition

Exterior Lamps
Your parking lamp/headlamp switch is on the driver’s
side
of your instrument panel.
Your instrument panel dimmer thumbwheel has two
detent positions.
When the thumbwheel is moved to full brilliance, and
then into the first detent position, the radio display and
PRNDL display
will go to the day mode (full intensity).
This is known as “parade” mode. The rest
of the UP
illumination
will stay in the maximum dimming state
(full brilliance dimming). Moving the thumbwheel up one
more detent will activate the interior dome light
circuit (with slightly higher effort).
The dome lights cannot be turned
on by depressing the
dome light switch button located below the parking
lampheadlamp knob. This switch is a dome lamp off
switch and will
only interrupt inputs from the door jamb
switches inhibiting interior light operation when
depressed. It will not inhibit
the light function from the
I/P dimmer switch,
The delayed entry feature will allow
you to enter or exit
your vehicle with the lights staying on for about
20 seconds, after the door is closed or ignition is cycled.
Rotate the knob to the right to the parking lamp symbol
to turn on:
0 Parking Lamps
0 Sidemarker Lamps
Taillamps
License Plate Lamps
0 Instrument Panel Lights
0 Ashtray Lamp
Rotate the knob
to the right again to the master lighting
symbol to turn on all the lamps listed above as well as
the headlamps.
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Rotate the knob to the left to OFF to turn off your lamps
and lights.
Rotate the thumbwheel next to the switch knob up to
adjust instrument panel lights. Rotate the thumbwheel
up to the first notch to return the radio display and
gearshift indicator Vacuum Fluorescence (VF) display
to full intensity when the headlamps or parking lamps
are on.
Rotate the thumbwheel up to the second notch
to
activate the interior dome lamps.
You can switch your headlamps from high
to low beam
by pulling on the turn signal/high beam lever.
A circuit breaker protects your headlamps. If you have
an electrical overload, your headlamps will flicker on
and off. Have your headlamp wiring checked right away
if this happens.
Headlamps On Reminder
A tone will sound when your headlamps are turned on
and your ignition is in OFF, LOCK or ACCESSORY. If
you need to use your headlamps when the ignition
switch
is in OFF, LOCK or ACCESSORY, the tone can
be turned
off by turning the thumbwheel next to the
parking lamp/headlamp switch all the way down.
Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others to see the front
of your vehicle during the day.
DRL can be helpful in many different driving
conditions, but they can be especially helpful in the
short periods after dawn and before sunset.
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The DRL system will make your headlamps come on at
a reduced brightness when:
The ignition is on,
The headlamp switch is off, and
The parking brake is released.
When the DRL are
on, only your headlamps will be on.
The taillamps, sidemarker and other lamps won’t be on.
Your instrument panel won’t be lit up either.
When it begins
to get dark, your DRL indicator light is
a reminder
to turn your headlamp switch on. The other
lamps that come
on with your headlamps will also
come
on.
When you turn off the headlamp switch, the regular
lamps will go off, and your headlamps will change to
the reduced brightness of
DRL.
To idle your vehicle with the engine on and the DRL off,
set the parking brake. The DRL will stay off until you
release the parking brake.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Center High-Mounted Stoplamp
Your vehicle’s center high-mounted stoplamp is located
above the rear doors at the center of the vehicle.
If items are loaded on the roof of the vehicle, as in a
luggage carrier, care should be taken
not to block or
damage the center high-mounted stoplamp unit.
If you tow a trailer that is equipped with provisions for a
center high-mounted stoplamp, see your
GM dealer for
instructions
on how to make it operate with your
vehicle’s electrical system.
As with any electrical system
modification, have the work performed by a qualified
electrical service person.
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Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows AIR
BAG. The system checks the
air bag’s electrical system for malfunctions. The light
tells you if there
is an electrical problem. The system
check includes the air bag sensor, the air bag modules,
the wiring and the crash sensing and diagnostic module.
For more information
on the air bag system, see “Air
Bag” in the Index.
AIR
This light will come on
when you start your engine,
and it will flash for a few
seconds. Then the light should go
out. This means
the system
is ready.
If the air bag readiness light stays on after you start the
engine or comes on when you are driving, your air bag
system may not work properly. Have your vehicle
serviced right away. The
air bag readiness light should flash for a few
seconds when
you turn the ignition key to RUN. If the
light doesn’t come
on then, have it fixed so it will be
ready
to warn you if there is a problem.
Charging System Light
(CJ
This light should come on
briefly when you turn on the
ignition, before starting the
engine, as a check to show
you it is working.
After the engine starts, the light should
go out. If it stays
on or comes on while you are driving, you may have a
problem with your charging system. It could indicate a
problem with the alternator drive belt, or some other
charging system problem. Have
it checked right away.
Driving while this light is on could drain your battery.
If you must drive a short distance with this light
on, it
helps
to turn off all your accessories, such as the radio
and air conditioner.
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Voltmeter
When your engine is not
on (in the
RUN position),
this gage shows your
DC volts.
I I / /I, running, but the ignition is
9 19 battery's state of charge in
VOLTS I
W
When the engine is running, the gage shows the
condition
of the charging system. Readings between the
low and high warning zones indicate the normal
operating range. Readings
in the low warning zone may occur wnen a
large number
of electrical accessories are operating in
the vehicle and the engine is left at an idle for
an
extended period. This condition is normal since the
charging system is not able to provide full power at
engine idle.
As engine speeds are increased, this
condition should correct itself as higher engine speeds
allow the charging system to create maximum power.
You can only drive for
a short time with the reading in
either warning zone.
If you must drive, turn off all
unnecessary accessories.
Readings in either warning zone indicate
a possible
problem in the electrical system. Have the vehicle
serviced as soon as possible.
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Brake System Warning Light
When the ignition is on, the brake system warning light
will
come on when you set your parking brake. The light
will stay on if your parking brake doesn’t release fully.
If it stays on after your parking brake is fully released, it
means you have a brake problem.
Your vehicle’s hydraulic brake system
is divided into
two
parts. If one part isn’t working, the other part can
still work and stop you. For good braking, though,
you
need both parts working well.
If the warning light comes on, there could be
a brake
problem. Have your brake system inspected right away.
BRAKE
United States
Canada
This light should come on briefly when you turn the
ignition key to RUN. If it doesn’t come on then, have it
fixed
so it will be ready to warn you if there’s a problem.
If the light comes on while you are driving, pull off the
road and stop carefully.
You may notice that the pedal is
harder to push. Or, the pedal may
go closer to the floor.
It may take longer to stop. If the light is still on, have the
vehicle towed for service. (See “Towing Your Vehicle’’
in the Index.)
A CAUTION:
Your brake system may not be working properly
if the brake system warning light is on. Driving
with the brake system warning light on can lead
to an accident.
If the light is still on after you’ve
pulled
off the road and stopped carefully, have
the vehicle towed for service.
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Anti-Lock Brake System Warning Light
ANTI -
LOCK
United States Canada
With
the anti-lock brake system, this light will come on
when you start your engine and may stay on for several
seconds. That’s normal.
If the light stays on, or comes
on when you’re driving,
your vehicle needs service. If the regular brake system
warning light isn’t
on, you still have brakes, but you
don’t have anti-lock brakes. If the regular brake system
warning light is also
on, you don’t have anti-lock brakes
and there’s a problem with your regular brakes. See
“Brake System Warning Light” earlier in this section.
The anti-lock brake system warning light should come
on briefly when
you turn the ignition key to RUN. If the
light doesn’t come on then, have it fixed
so it will be
ready
to warn you if there is a problem.
Engine Coolant Temperature Gage
This gage shows the engine
gage pointer moves into
the red area your engine is
coolant temperature.
If the
260 too
hot!
It means that your engine coolant has overheated.
If
you have been operating your vehicle under normal
operating conditions,
you should pull off the road, stop
your vehicle, and turn off the engine as soon as possible.
The “Problems on the Road’’ section of this
manual shows what
to do. See “Engine Overheating”
in the Index.
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Malfunction Indicator Lamp (Service
Engine Soon Light) (Gasoline Engine)
I I Your vehicle is equipped
SERVICE
ENGINE
with a computer which
monitors operation of the
fuel, ignition and emission
SOON control systems.
NOTICE:
If you keep driving your vehicle with this light
on, after a while, your emission controls may not
work as well, your fuel economy may not be as
good and your engine may not run as smoothly.
This could lead to costly repairs that may not be
covered by your warranty.
This system is called OBD I1 (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for the life
of the vehicle, helping to produce a cleaner
environment. The SERVICE ENGINE
SOON light
comes on to indicate that there is a problem and service
is required. Malfunctions often will be indicated by the
system before any problem is apparent. This may
prevent more serious damage to your vehicle. This
system is also designed to assist your service technician
in correctly diagnosing any malfunction. This
light should come on,
as a check to show you it is
working, when the ignition is on and the engine is not
running. If the light doesn’t come
on, have it repaired.
This light will also come on during a malfunction in one
of two ways:
Light Flashing -- A misfire condition has been
detected.
A misfire increases vehicle emissions and
may damage the emission control system on your
vehicle.
GM or qualified service center diagnosis
and service may be required.
0 Light On Steady -- An emission control system
malfunction has been detected
on your vehicle. GM
or qualified service center diagnosis and service may
be required.
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