1998 GMC SIERRA window

Synchronization
Synchronization may be necessary d~te to the security
method used by this system. The transmitter does not
send the
same signal twice to the receiver. The receiver
will not respond to a signal it has been sent previously.
This prevents anyone from recording and playing back
the signal
from the transmitter.
To resynchronize your transmitter, stand close to your
vehicle and simultaneously press and hold the
LOCK
and UNLOCK buttons on the transmitter for at least
five seconds. The door locks should cycle to confirm
synchronization.
If the locks do not cycle. see your
dealer for service.
Theft
Vehicle theft is big business, especially in scme cities.
Although your vehicle has
a number of theft-deterrent
features, we know that nothing we put on
it can make it
impossible to steal. However. there are ways you can help.
Key in the Ignition
If you leave your vehicle with the keys inside, it's an
easy target forjoy riders
01- professional thieves -- so
don't do it.
When you park your vehicle and open the driver's door,
you'll hear
a tone reminding you to remove your key
from the ignition and take
it with you. Always do this.
Ycx~r steering wheel will be locked, and so will your
ignition.
If you have an automatic transmission, taking
your key
out also locks your transmission. And
remember
to lock the doors.
Parking at Night
Park in a lighted spot, close all windows and lock your
vehicle. Remember
to keep your valuables out of sight.
Put them in a storage area, or take them with you.
Parking Lots
If you park in a lot where someone will be watching
your vehicle, it's best to lock
it up and take your keys.
But what if you have to leave your ignition key? What if
you have to leave something valuable in your vehicle'?
Put your valuables in a storage area, like your
glove box.
Lock all the doors except the driver's.
2-9
ProCarManuals.com

Ignition Positions
You can use your key to turn your ignition switch to five
different positions.
C
I
E
LOCK (B): This position locks your ignition, steering
wheel and transmission. It’s a theft-deterrent feature.
You
will only be able to remove your key when the
ignition
is turned to LOCK.
OFF (C): This position lets you turn off the engine but
still turn the steering wheel. It doesn’t lock the steering
wheel
like LOCK. Use OFF if you must have your
vehicle
in motion while the engine is off (for example, if
your vehicle is being pushed).
RUN (D): This is the position for driving.
START (E): This starts your engine.
ACCESSORY
(A): ACCESSORY lets you use things
like the radio, power windows and the windshield
wipers when the engine
is off. Push in the key and turn
it toward you. Your steering wheel will re~nain locked,
just
as it was before you inserted the key.
~ On manual transmission vehicles, turning the key
to LOCK
will lock the steering column and result
in a loss
of ability to steer the vehicle. This could
cause
a collision. If you need to turn the engine
off while the vehicle is moving, turn the key only
to
OFF. Don’t press the key release button while
the vehicle is moving.
I
2-11
ProCarManuals.com

Pa ng Over Things That Burn
--
Things that can burn could touch hot exhaust
parts under your vehicle and ignite. Don’t park
over papers, leaves, dry grass or other things that
can burn.
Engine Exhaust
0
0
Engine exhaust can kill. It contains the gas
carbon monoxide
(CO), which you can’t see or
smell. It can cause unconsciousness and death.
You might have exhaust coming in
if:
Your exhaust system sounds strange
or different.
Your vehicle gets rusty underneath.
Your vehicle was damaged in
a collision.
Your vehicle
was damaged when driving over
high points on the road or over road debris.
Repairs weren’t done correctly.
Your vehicle or exhaust system had been
modified improperly.
If you ever suspect exhaust is coming into
your vehicle:
0 Drive it only with all the windows down to
0 Have your vehicle fixed immediately. blow out any
CO; and
2-30
ProCarManuals.com

Locking Rear Axle (If Equipped)
If you have this feature, your locking rear axle can give
you additional traction on snow, mud, ice, sand or
gravel. It works like a standard axle most of the time,
but when one
of the rear wheels has no traction and the
other does, this feature will allow
the wheel with
traction to move the vehicle.
Windows
Manual Windows Power Windows
(If Equipped)
Turn the
hand crank on each door to raise or lower
manual windows.
Regular and Extended Cab
2-32
ProCarManuals.com

Crew Cab
If you have the optional power windows, the controls
are on each of the side doors.
The driver’s door has a switch for the passenger
windows as well. Your power windows will work when
the ignition has been turned
to ACCESSORY or RUN. Press the rear
of the
switch with the power window
symbol on
it to lower the window.
Press the front of
the switch with the power window
symbol
on it to raise the window.
The driver’s window also has an express down feature
that allows the window to be lowered without holding
the switch. Press and hold the side of the window switch
marked
AUTO for one second to activate the express
down mode. The express down mode can be canceled at
any time by pressing the opposite side
of the switch. To
open the window partway, lightly tap the switch until the
window is at the desired position.
Lockout Switch (Crew Cab)
If you have a Crew Cab and power windows, the power
window switch has
a lockout feature. This feature
prevents the rear windows from operating when
the
front driver’s side switch is in LOCK. The windows can
still be operated using the driver’s window switch.
When the switch is moved
to NORM, the rear power
windows will operate again.
2-33
ProCarManuals.com

Swing-Out Windows (Extended Cab)
Sliding Rear Window (If Equipped)
To open the sliding rear window, unlock the latch lever
by moving the lever toward the front
of the cab. Release
the lever from the latch plate and slide the window
toward the driver’s side
of the vehicle.
To close the window, slide the window toward the
passenger’s side
of the vehicle. The latch lever will
automatically snap locked on to the latch plate. Try to
open the window without releasing the latch lever to be sure the window is
in the locked position.
Horn
On air bag-equipped vehicles, press the air bag module
in the center
of the steering wheel to sound the horn.
On vehicles not equipped with an air bag, press the pad
in the center of the steering wheel to sound the horn.
Tilt Wheel (If Equipped)
A tilt steering wheel allows
you to adjust the steering
wheel before
you drive.
You can also raise it to the highest level to give your
legs more room when you enter and exit the vehicle.
To tilt the wheel, hold the steering wheel and puli the
lever. Move the steering wheel to
a comfortable level,
then release the lever to lock the wheel
in place.
2-34
ProCarManuals.com

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.
2-47
ProCarManuals.com

’ NOTICE:
Holding a cigarette lighter in with your hand
while
it is heating can make it overload,
~ damaging the lighter and the heating element.
Just push the lighter all the way in and let go.
When it’s done,
it will pop back by itself.
Accessory Power Outlets
Two auxiliary power outlets are located near the
cigarette lighter. Use these outlets to power mobile
telephones or other devices designed to operate
with
vehicle electrical systems.
Sun Visors
To block out glare, you can swing down the visors. You
can also swing them
out to help block glare at the front
and side windows.
Your visor may have a strap
to hold small items, such
as maps.
Some visors have an extender on the inside edge. When
the visor is down, pull
the extender out for extra glare
coverage at the front
or side.
Some visors have mirrors with lamps.
If the mirror has
lamps, they will come on when
you lift the mirror cover.
2-59
ProCarManuals.com