GMC SIERRA 1994 Owners Manual

Engine Exhaust Running Your Engine While You’re Parked
(Automatic Transmission)
It’s better not to park with the engine running. But if you ever have to, here
are some things
to know.
2-33
ProCarManuals.com

If you have four-wheel drive and your transfer case is in “N” (Neutral),
your vehicle will be free to roll, even
if your shift lever is in “P” (Park). So,
be sure the transfer case is in a drive gear - not in “N” (Neutral). Follow
the proper steps to be sure your vehicle won’t move. See “Shifting Into
‘P’
(Park)’’ in the Index.
If you’re pulling a trailer, see “Towing a Trailer” in the Index.
Four- Wheel Drive
If your vehicle has four-wheel drive, you can send your engine’s driving
power to all four wheels for extra traction.
To get the most satisfixtion out
of four-wheel drive, you must be familiar with it’s operation. Read
the part
that follows before using four-wheel drive.
You should use 2H for most
normal driving conditions.
Rear-wheel antilock brakes
do not work when you shift into four-wheel
drive. Your regular brakes
will still work. When you shift back into
two-wheel drive, your rear-wheel antilock brakes will take over again.
2-34
ProCarManuals.com

NOTICE:
Driving in the 4H or 4L positions for a long time on dry or wet
pavement could shorten the life of your vehicle’s drivetrain.\

Transfer Case
The transfer case shift
lever is on the floor to
the right of the driver.
Use this lever to shift into and out
of
An indicator near the lever shows you the transfer case settings.
The front axle portion
of the indicator
diagram will light up
when you shift into
four-wheel drive.
Some delay between shifting and the indicator’s lighting is normal.
If the
indicator light does not light
up, or if the front axle light does not go out
after you shift out
of four-wheel drive, have your dealer check your system.
2-35
ProCarManuals.com

When your headlights or parking lights are on, rotate the dial to the right of
your headlight switch up
to brighten, or down to dim, your transfer case
indicator light.
2H (2-Wheel High): This setting is for driving in most street and highway
situations. Your front axle is not engaged
in two-wheel drive.
4H (4-Wheel High): This setting engages your front axle to help drive your
vehicle. Use
4H when you need extra traction, such as on wet or icy roads,
or in most off-road situations.
N (Neutral): Shift to this setting only when your vehicle needs to be towed
or when using a power take-off.
4L (4-Wheel Low): This setting also engages your front axle to give you
extra power, but should be used only for off-road driving.
You can shift from
2H to 4H or from 4H to 2H while the vehicle is moving.
Your front axle will engage faster if you take your foot off of the accelerator
for a few seconds after you shift.
In extremely cold weather it may be
necessary to stop or slow the vehicle to shift
out of 2H.
To shift into or out of 4L or “N” (Neutral):
Slow the vehicle to a roll, about 1-3 mph (2-5 kdh) and shift your
transmission into neutral.
0 Shift the transfer case shift lever in one continuous motion.
Don’t pause
in “N” (Neutral) as you shift the transfer case into 4L, or your
gears could clash.
Remember that driving
in 4H or 4L may reduce fuel economy. Also, driving
in four-wheel drive on dry pavement could cause your tires to wear fdster
and make your transfer case harder to shift.
Front Axle Locking Feature
The front axle locks and unlocks automatically when you shift the transfer
case. Some delay
for the axle to lock or unlock is normal. If the outside
temperature is very hot, or the vehicle has been used under hard driving
conditions, there may be
a slight delay for the axle to unlock.
Whenever you are
in four wheel drive, the rear wheel anti-lock brake
system does not operate. The regular brake system operates normally. When
you shift back into two-wheel drive, the anti-lock brake system will
operate.
2-36
ProCarManuals.com

Windows
To operate your
manual windows, turn
the hand crank on
each door to raise or
lower your side door
windows.
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 ACC or
RUN.
Push the switch with the down-pointing arrow to lower the window.
Push the switch with the uppointing arrow to raise the window.
2-37
ProCarManuals.com

Sliding Rear Window (Option)
You may have a four-piece or a three-piece sliding rear window.
To open a four-piece
sliding rear window,
pull the latch lever forward and release it
from the latch plate.
Then, slide each side
of the window to an
open position.
To open a three-piece window, press the latch and slide the windo\
w to an
open position.
To close a four-piece window, slide each window toward the center of the
vehicle until they meet. Then, hook the latch lever on the latch plate and
press rearward firmly on the latch lever. Be sure the latch l\
ever snaps in the
locked position.
To close a three-piece window, slide the window until the latch c\
licks in the
locked position. When you close the window be sure the latch \
fully engages
in the locked position.
Swing-Out Windows (Option-Extended Cab)
To open a rear
swing-out window,
just flip the latch open
and swing the glass
out.
The latch will catch when the window is fully open and hold \
window in the
open position.
2-38
ProCarManuals.com

Horn
To sound the horn,
press the pad
in the
center of the steering
wheel. The pad has a
horn symbol on it.
Tilt Wheel (Option)
A tilt steering wheel allows you to adjust the steering wheel before you
drive.
You can raise it to the highest level to give your legs more room when you
exit and enter the vehicle.
To adjust the tilt steering wheel:
While holding the
steering wheel,
pull
the lever
toward you.
Move the steering
wheel
to a
comfortable level, then release
the lever
to lock
the wheel
in
place.
2-39
ProCarManuals.com

Multifunction Lever
The lever on the left side of the steering column includes your:
Turn Signal and Lane Change Indicator
Headlight High-Low Beam & Passing Signal
0 Windshield Wipers
0 Windshield Washer
Cruise Control (Option)
Turn Signal and Lane Change Indicator
The turn signal has
two upward (for right
signal) and two
downward (for left
signal) positions.
These positions allow
you
to signal a turn or
a lane change.
To signal a turn, move the lever all the way up or down. When the turn is
finished, the lever will return automatically.
2-40
ProCarManuals.com

A green arrow on the
instrument panel will
flash
in the direction
of the turn or lane
change.
To signal a lane change, just raise or lower the lever until the green arrow
starts to flash.
Hold it there until you complete your lane change. The lever
will return by itself when you release it.
As you signal a turn or a lane change, if the arrows don’t flash but just stay
on, a signal bulb may be burned out and other drivers won’t see your turn
signal.
If a bulb
is burned out, replace it to help avoid an accident. If the green
arrows don’t go on at all when
you signal a turn, check for burned-out bulbs
and a blown fuse
(see “Fuses” in the Index).
Headlight High-Low Beam
To change the
headlights
from low
beam to high or high
to low, pull the turn
signal lever
all the
way toward
you. Then
release
it.
2-41
ProCarManuals.com

on the instrument
panel also will be on.
Windshield Wipers
turning the band with
the wiper symbol on
it.
For a single wiping cycle, turn the band to
MIST. Hold it there until the
wipers start, then let go. The wipers will stop after one cycle. If you want
more cycles, hold the band on
MIST longer.
You can set the wiper speed for a long or short delay between wipes. This
can be very useful in light rain or snow. Turn the band to choose the delay
time. The closer to
LO, the shorter the delay.
For steady wiping at low speed, turn the band to the
LO position. For high
speed wiping, turn the band further, to
HI. To stop the wipers, move the
band to the
off symbol.
Remember that 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.
.. . .-
.Y
ProCarManuals.com