ignition GMC SIERRA 1998 Owner's Manual

Compass Operation The mirror can be calibrated in one of two ways:
Press the COMP switch once briefly to turn the compass
on or
off.
When the ignition and the compass feature are on, the
compass will show two character boxes for
approximately two seconds. After two seconds, the
mirror will display the compass heading.
When cleaning the mirror, use
a paper towel or similar
material dampened
with glass cleaner. Do not spray
glass cleaner directly on the mirror as that may cause the
liquid cleaner to enter the mirror housing.
Compass Calibration
If, after two seconds, the display does not show a compass
heading
(“N? for North, for example), there may be a
strong magnetic field interfering with the compass. Such
interference may be caused by a magnetic antenna mount,
magnetic note pad holder or
a similar magnetic item. If the
letter
“C” should ever appear in the compass window, the
mirror may need calibration.
0 Drive the vehicle in circles at five mph (8 km/hj or
less until the display reads a direction, or
0 Drive the vehicle on your everyday routine.
Compass Variance
The mirror is set in zone eight upon leaving the fictory.
It will be necessary to adjust the compass to compensate
for compass variance
if you live outside zone eight.
Under certain circumstances, as during
it long distance
cross-country trip,
it will be necessary to adjust for
con~pass variance. Compass variance
is the difference
between earth’s magnetic north and true geographic
north.
If not ad-justed to account for compass variance,
your compass could give false readings.
To adjust for compass variance:
1. Use the COMP button located at the bottom of
the mirror.
2. Press and hold the COMP button for three seconds
until a zone number appears in the display.
3. Find your current location and variance zone number
on the following zone map.
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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 sensors, the air bag module, the wiring and the
diagnostic module. For more information
on the air bag
system, see “Air Bag”
in the Index,
~
AIR
BAG
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.
AIR BAG OFF Light (Except Crew Cab)
When you turn the right front passenger’s air bag off, this
light will come
on and stay on to remind you that the air
bag has been turned off. This light will go off when you
turn the air bag back on again. See “Securing a Child
Restraint in the Right Front Seat Position”
in the Index for
more on this, including important safety information.
-
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If the right front passenger’s air bag is turned
off, an adult or
a child who is no longer an infant
sitting in the right front passenger’s position
won’t have the extra protection of an air bag. In
a crash, the air bag wouldn’t be able to inflate
and help protect the person sitting there. Make
sure the air bag is turned on unless you are using
a rear-facing child restraint in the right front
seat position.
A
A CAUTION:
If the air bag readiness light ever comes on when
you have turned off the air bag, it means that
something may be wrong with the air bag system.
The right front passenger’s air bag could inflate
even though the switch is off.
If this ever
happens, don’t secure a rear-facing child
restraint in your vehicle until you have your
vehicle serviced.
Charging System Indicator Light
7-1 This light should come on
I-+I
brieflywhen you turn on the
ignition, before starting the
engine,
as a check to show
you it is working.
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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 generator
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 the
air conditioner.
Voltmeter
19
When your engine is not
running, but the ignition is
in RUN, this gage shows
your battery’s state of
charge in
DC volts.
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 when 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.
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.
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If the warning light comes on, there co11ld be a brake
problem. Have your brake system inspected right away.
This light should come on
(a) (@)
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. BRAKE
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.)
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.
Anti-Lock Brake System Warning Light
With the anti-lock brake
system,
this light will
come on when you start
ANTI -
LOCK
your engine and may stay
on for several seconds.
That’s normal.
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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
1
This gage shows the engine
coolant temperature.
It also provides an indicator of how hard your vehicle is
working. During a majority of the operation, the gage
will read
210°F (100°C) or less. If you are pulling a
load or going up hills, it is normal for the temperature to
fluctuate and approach the
260°F (1 25 “C) mark. If the
gage reaches the
260°F (125°C) mark, it indicates that
the cooling system is working beyond its capacity.
The “Problems on
the Road,” section of this manual shows
what
to do. See “Engine Overheating” in the Index.
Malfunction Indicator Lamp (Service
Engine
Soon Light) (Gasoline Engine)
SERVICE
ENGINE
SOON
Your vehicle is equipped
with a computer which
monitors operation
of the
fuel, ignition and emission
control systems.
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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.
~OTICE:
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 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.
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This light will also come on during a malfunction in one
of two ways:
0 Light Flashing -- A misfire condition has been
detected. A misfire increases vehicle emissions and
may damage the emission control system on your
vehicle. Dealer 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.
Dealer or qualified service center diagnosis and
service may be required.
If the Light Is Flashing
The following may prevent’more serious aamage to
your vehicle:
Reducing vehicle speed.
Avoiding hard accelerations.
0 Avoiding steep uphill grades.
0 If you are towing a trailer, reduce the amount of
cargo being hauled as soon as it is possible.
If the light stops flashing
and remains on steady, see “If
the Light Is On Steady” following.
If the light continues
to flash, when it is safe to do so,
stop the vehicle. Find a safe place to park your vehicle.
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Fuel Gage
The fuel gage, when the
ignition is on, tells you
about how much fuel you
have left
in your tank.
The
gage will first indicate EMPTY (E) before you
are out of fuel, and you should get more fuel as soon
as possible. Here
are four situations you may experience with your
fuel gage. None of these indicate a problem with the
fuel gage.
At the gas station, the fuel pump shuts off before the
gage reads FULL
(F).
It takes a little more or less fuel to fill up than the
fuel gage indicated. For example, the gage may have
indicated the tank was half
full, but it actually took a
little more or less than half the tank’s capacity to
fill
the tank.
The gage moves a little when you turn a corner or
speed up.
The gage doesn’t go back to EMPTY (E) when you
turn off’ the ignition.
If you have a diesel engine, see “Fuel Gage” in the
Diesel Engine Supplement.
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Ventilation Tips
0
0
0
0
Keep the hood and front air inlet free of ice, snow or
any other obstruction (such
as leaves). The heater
and defroster will work far better, reducing the
chance
of fogging the inside of your windows.
When you enter a vehicle
in cold weather, turn the
blower fan to
HI for a few moments before driving.
This helps clear the intake ducts of snow and
moisture, and reduces the chance of fogging the
inside of your windows.
Keep
the air path under the front seats clear of
objects. This helps air
to circulate throughout
your vehicle.
The use of hood air deflectors may adversely
affect
the performance of the heating and air
conditioning system.
Defogging and Defrosting
On cool, humid days, use DEFOG to keep the
windshield and side windows clear. Use
DEFROST to
remove fog
or ice from the windshield in extremely
humid or cold conditions. Use DEFROST with the
temperature knob toward the red area and the fan control
toward
HI.
Rear Window Defogger (If Equipped)
If you see lines running across the rear window, you
have
a rear window defogger. The lines warm the glass.
To turn on the rear window
defogger, press this button
next to the fan control knob.
The rear window defogger will only work if the
ignition switch is turned to
RUN. For best results, clear
the window of as much
snow or ice
as possible first.
The defogger
will shut itself off after several minutes. If
you need additional warming time, press the button
again.
You can turn the defogger off at any time by
pressing the button.
Do not attach a temporary vehicle license, tape or decals
across the defogger grid on the rear window.
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.
NOTICE:
Don’t use a razor blade or something else sharp
on the inside
of the rear window. If you do, you
could cut
or damage the warming grid, and the
repairs wouldn’t be covered
by your warranty.
Audio Systems
Your Delco Electronics audio system has been designed
to operate easily and give years of listening pleasure.
You will get the most enjoyment out of it if you acquaint
yourself with
it first. Find out what your Delco
Electronics system can do and how to operate
all its
controls,
to be sure you’re getting the most out of the
advanced engineering that went into it.
Setting the Clock for Systems without
Automatic Tone Control
Press SET. Within five seconds, press and hold the
SEEK right arrow
until the correct minute appears on
the display. Press and
hold the SEEK left arrow until the
correct hour appears
on the display.
Setting the Clock for Systems with
Automatic Tone
Control
Press and hold HR until the correct hour appears on the
display. Press and hold
MN until the correct minute
appears on the display.
To display the clock with the
ignition
off, press RECALL or HR/MN and the time
will be displayed for a few seconds. There is an initial
two-second delay before the clock goes into the
time-set mode.
AM-FM Stereo
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