1998 GMC SIERRA Owners Manual

For steady wiping at low speed, turn the knob to the LOW
position. For high-speed wiping, turn the knob hrther, to
HIGH.
To stop the wipers, move the knob to OW.
Damaged wiper blades may prevent you from seeing
well enough to drive safely.
To avoid damage, be sure to
clear ice and
snow from the wiper blades before using
them.
If they are frozen to the windshield, carefully
loosen
or thaw them. If your blades do become
damaged, get new blades or blade inserts.
Heavy ice or snow can overload your wipers. The
windshield wiper motor
is protected from overload by a
circuit breaker and a fuse. If the motor overheats due
to
heavy snow, etc., the wiper will stop until the motor
cools. Although protected from electrical overload,
overload due
to heavy snow, etc. may cause wiper
linkage damage. Always clear ice and heavy snow from
the windshield before using your windshield wipers.
Windshield Washer
At the top of the lever,
%:.. there’s a paddle with the 4 g& .,.~ ...... ...... ... .. . . word PUSH on it. To spray
washer fluid
on the
windshield, push the paddle.
A CAU 1ION:
In freezing weather, don’t use your washer until
the windshield is warmed. Otherwise the washer
fluid can form ice on the windshield, blocking
your vision.
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Washer fluid will spray as long as you push the paddle.
When you let
go of the paddle, the wipers will continue
to wipe for
a few seconds and then e.ither stop or return
to the preset speed.
The use of a hood-mounted air deflector may adversely
affect windshield wiper and washer performance.
Cruise Control (If Equipped)
really help on long trips.
Cruise control does not
work at speeds below about
, .. .. .. . , . :.!r+.l .. 25 mph (40 km/h).
When
you apply your brakes, the cruise control
shuts
off.
C * ‘JTIOT ;
0 Cruise control can be dangerous where you
can’t drive safely at a steady speed. So,
don’t use your cruise control on winding
roads or in heavy traffic.
slippery roads. On such roads, fast changes in tire traction can cause needless wheel
spinning, and you could lose control. Don’t
use cruise control on slippery roads.
Cruise control can be dangerous on
Setting Cruise Control
If you leave your cruise control switch on W,AI
you’re not using cruise, you might hit a button
and
go into cruise when you don’t want to. You
could
be startled and even lose control. Keep the
cruise control switch off until
you want to use it.
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2. Get up to the speed you want.
3. Press in the SET button
at the end
of the lever
and release
it.
4. Take your foot off the accelerator pedal.
Resuming a Set Speed
Suppose you set your cruise control at a desired speed
and then you apply the brake. This, of course,
shuts off
the cruise control.
But yo11 don’t need to reset it.
.. Once you’re going about
25 mph (40 kdh) or more,
you can move the cruise
switch from
ON to RIA
(Resume/Accelerate) for
about
half a second.
You’ll go right back up to your chosen speed and
stay there.
Remember,
if you hold the switch at R/A longer than
half
a second, the vehicle will keep going fister until
you release the switch or apply the brake. So unless you
want
to go fdster, don’t hold the switch at R/A.
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Increasing Speed While Using Cruise Control
There are two ways to go to a higher speed:
0 Use the accelerator pedal to get to the higher speed.
Press
the button at the end of the lever, then release
the button and the accelerator pedal. You’ll now
cruise at
the higher speed.
Move the cruise switch from ON to R/A. Hold it
there until
you get up to the speed you want, and
then release the switch.
(To increase your speed in
very small amounts, move the switch to R/A for less
than half
a second. Each time you do this, your
vehicle will
go about 1 mph (1.6 km/h) faster.)
Reducing Speed While Using Cruise Control
There are two ways to reduce your speed while using
cruise control:
Press in the button at the end of the lever until you
reach the lower speed
you want, then release it.
0 To slow down in very small amounts, press the
button for less than half a second. Each time you
do
this, you’ll go 1 mph (1.6 km/h) slower.
Passing Another Vehicle While Using Cruise Control
Use the accelerator pedal to increase your speed. When
you take your
foot off the pedal, your vehicle will slow
down to the cruise control speed
you set earlier.
Using Cruise Control on Hills
How well your cruise control will work on hills depends
upon your speed, load and the steepness of
the hills.
When going up steep hills, you may have to step on the
accelerator pedal to maintain your speed. If the
steepness
of the hill causes the vehicle speed to drop
more than
15 mph (24 km/h) below the set speed, your
cruise control will automatically disengage. When going
downhill, you may have
t.o brake or shift to a lower gear
to keep your speed down. Of course, applying the brake
takes
you out of cruise control. Many drivers find this to
be
too much trouble and don’t use cruise control on
steep hills.
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Ending Cruise Control
There are two ways to turn off the cruise control:
0 Step lightly on the brake pedal or
Move the cruise switch
to
OFF.
Erasing Speed Memory
When you turn off the cruise control or the ignition,
your cruise control set speed memory is erased.
Exterior Lamps
Your parking lamp and headlamp switch is on the
driver's side
of your instrument panel.
Rotate the knob to the right, to the parking lamp symbol.
to
turn on:
Parking Lamps
Sidemarker Lamps
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Clearance Lamps (If Equipped)
Taillamps License Plate Lamps
Instrument Panel Lights
Transfer Case Shift Indicator Light (Four-Wheel-Drive Vehicles)
Rotate the knob to the right again to the master
lighting symbol
to turn on all the lamps listed as
well as the headlamps.
Rotate the knob to the left,
to OFF, to turn off
your lamps.
Rotate the thumb wheel next to
the knob up to adjust
instrument panel lights. Rotate the thumb wheel
up to
the first notch to return the radio display and gearshift
indicator
LED display to full intensity when the
headlamps or parking lamps are on.
You can switch your headlamps from high
to low beams
by pulling on the turn signal/multifunction lever.
Headlamps On Reminder
A buzzer will sound when your headlamps are turned on
and the key
is turned to the OFF, LOCK or
ACCESSORY position.
If you need to use your
headlamps when the key is turned to OFF-
LOCK or ACCESSORY, the
buzzer can be turned off by turning
the thumb wheel next
to the parking lamp/headlamp
knob 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.
The DRL system
will make your headlamps come on at
a reduced brightness when:
0 the ignition is on,
0 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 headlanips 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.
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To idle your vehicle with 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.
Fog Lamps (If Equipped)
If you have fog lamps, use them for better vision in
foggy or misty conditions.
Your parking lamps and/or
low-beam headlamps must be on for your fog lamps
to work.
The fog lamp switch is on
the lower edge of your
instrument panel.
Press the ribbed top part of the switch to turn the fog
lamps on. Press
the bottom of the switch to turn them
off.
A light will glow in the switch when the fog lamps
are on. Remember,
fog lamps alone will not give off as much
light as your headlamps. Never use your fog lamps in
the dark without turning on your headlamps.
Fog lamps will go off whenever your high-beam
headlamps come on. When the high beams go
off, the
fog lamps will come on again.
Interior Lamps
Instrument Panel Intensity Control
The instrument panel intensity control is located to the
right of the headlamp switch.
Rotate the thumb wheel up to adjust instrument panel
lights. Rotate the thumb wheel up to the first notch to
return the radio display and gearshift indicator LED
display to full intensity when the headlamps or parking
lamps are on. To turn on the dome lamps (with the
vehicle doors closed) rotate the thumb wheel up to the second notch position.
Illuminated Entry
Your vehicle is equipped with an illuminated
entry feature.
When the doors are opened, the dome lamps will come
on if the dome lamp button is out. When all the doors
are closed, or the dome lamp button is pressed in, the
lamps will stay on for
a short period of time and will
then go out.
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Front Reading Lamps (If Equipped)
If your vehicle has reading
lamps, press the button next
to the lamp to turn the lamp
on. The lamps can be
adjusted to point in the
direction you want.
Press the button again
to turn the lamp off.
Dome Lamps
The dome lamps will come on when you open the doors.
You can also turn the dome lamps on by rotating the
thumb wheel, located next
to the parking/headlamps
knob, all the way up to the second notch.
In this
position, the dome lamps will remain on whether the
doors are opened or closed. You
can use the
DOME OVERRIDE button, located
below the parking/headlamp knob, to set
the dome
lamps to come
on automatically when the doors are
opened, or remain off.
To turn the lamps off, press the
button once. With the button in this position,
the dome
lamps will remain off when the doors are open.
To
return the lamps to automatic operation, press the button
again and return
it to the “out” position. With the button
in this position, the dome lamps will come on when you
open the door.
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