1993 GMC SIERRA wheel

Featwes & Contmk
The front axle portion of the indicator diagram will light up when you shift into
four-wheel drive.
A slight delay between shifting and the indicator’s lighting is
normal.
If the indicator 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.
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.
Transfer Case Shift Positions
2H (High): This setting is for driving in most street and highway situations.
Your front axle is not engaged in two-wheel drive.
4H (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 (Low): This setting also engages your front axle to give you extra traction,
but should be used only for off-road or on extremely slippery surfaces.
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):
1. Slow the vehicle to a roll, about 3 mph (5 kmlh) and shift your
2. Shift the transfer case shift lever in one continuous motion.
transmission into neutral.
Don’t pause in
N (Neutral) as you shift the transfer case into 4L, or your
aears could clash.
Kernember that driving
in 4H or 4L may reduce fuel economy. Also, driving in
four-wheel drive on dry pavement could cause your tires to wea\
r faster 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.
A slight 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.
2-38
ProCarManuals.com

Whenever you are in four wheel-drive, the rear wheel anti-lock brake system
does not operate. The regular brake system operates normally. W\
hen you shift back into two-wheel drive, the anti-lock brake system will operate.
Windows
To open 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 up pointing arrow to raise the window.
2-39
ProCarManuals.com

Horn
I'
c
E,
I
K2319
To sound the horn, press the pad with the horn symbol on it. Th\
e pad is
located in the center
of the steering wheel.
Tilt Wheel (Option)
K2185
A tilt steering wheel allows you to adjust the steering wheel be\
fore you drive.
You can also raise it to the highest level to give your legs more room when
you exit and enter the vehicle.
2-41
ProCarManuals.com

Features & ContrOrs
To tilt the wheel, hold the steering wheel and pull the lever. Move the
steering wheel to a comfortable level, then release the lever to
lock the wheel
in place.
Mu/tifunction 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
Windshield Wipers
Windshield Washer
Cruise Control (Option)
2-42
ProCarManuals.com

Features & Contmls
I Cruise Control can be dangerous where you can’t safely drive\
at
a steady speed.
So don’t use your Cruise Control on winding
roads or in heavy traffic.
Cruise Control can be dangerous on slippery roads. On such
roads, fast changes in tire traction can cause needless wheel
spinning, and you could lose control. Don’t use Cruise Contr\
ol
on slippery roads.
-
To Set Cruise Control
K2248
Move the Cruise switch to ON.
I CAUTION I
I 6 If you leave your Cruise Control switch on when you’re not usi\
ng
.,L Cruise, you might hit a button and go into Cruise when you d\
on’t
want to. You could be startled and even lose control. Keep the
Cruise Control switch
OFF until vou want to use it.
-
Get up to the speed you want.
Push in the set button at the end of the lever and release it,
Take your foot off the accelerator pedal.
2-48
ProCarManuals.com

you know they’re working. If you are familiar. with this section, you should not
be alarmed when this happens.
Gages can indicate when there may be or is _a problem with one of your
vehicle’s functions. Often gages and warning lights work together
to let you
know when there’s a problem with your vehicle.
When one of the warning lights comes on and stays on when yo\
u are driving, or when one of the gages shows there may be a probl\
em, check the
section that tells you what to do about it. Please follow the\
manual’s advice.
Waiting to do repairs can be costly-and even dangerous.
So please get to
know your warning lights and gages. They’re a big help.
Brake System. Warning Light
BRAKE
. , K2325
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- systems working well.
Your vehicle also has rear-wheel antilock brakes.
If the warning light goes on,
there could be a brake problem with either your regular or rear wheel antilock
brakes, or both. Have your brake system inspected right away.
This light should come on as you start the vehicle.
If it doesn’t come on
then, have
it fixed so it will be ready to warn you if there’s a problem.
This light
will also come on when you set your parking brake, and 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 may ‘have a brake problem. If the light
comes on while driving, pull
off the road and stop carefully. You may notice
2-79
ProCarManuals.com

Your Driving and the Road
.
Here you’ll find information about driving different kinds of roads and in
varying weather conditions
. We’ve also included many other useful tips on
driving
.
Road Signs ........................................................................\
.................................... 4-3
Defensive Driving ........................................................................\
........................ 4-10
Drunken Driving ........................................................................\
........................... 4-11
Control of a Vehicle ........................................................................\
.................... 4-14
Braking ........................................................................\
...................................... 4-14
Steering ........................................................................\
.................................... 4-19
Steering in Emergencies ........................................................................\
......... 4-21
rassing ........................................................................\
..................................... 4-22
Loss of Control ........................................................................\
........................ 4-24
Off-Road Driving With Your Four-wheel Drive Vehicle
.................................... 4-25
Driving at Night
.............. w..i*&r,+v ........................................................................\
4-36
Driving in the Rain ........................................................................\
...................... 4-30
Driving in Fog, Mist and Haze ........................................................................\
.. 4-41
City Driving ........................................................................\
.................................. 4-42
Freeway Driving ........................................................................\
........................... 4-43
Driving a Long Distance ........................................................................\
............. 4-45
Hill and Mountain Roads ........................................................................\
............ 4-47
4-1
ProCarManuals.com

c
AM41 501 6
As you brake, your computer keeps receiving updates on rear wheel spee\
d
and controls braking pressure accordingly.
CAUTION I
A
Anti-lock doesn’t change the time you need to get your foot up to I
the brake pedal. If you get too close to the vehicle in front of you,
you won’t have time
to apply your brakes if that vehicle suddenly
slows or stops. Always leave enough room up ahead to stop, even
though you have anti-lock brakes.
To Use Anti-Lock:
Use rear wheel anti-lock like regular brakes. You may feel the brakes vibrate,
or you may notice some noise outside your vehicle, but this is normal. Let
anti-lock work for you, but remember: Your front wheels can still stop rolling.
If that happens, release enough pressure on the brakes to get the wheels
rolling again
so that you can steer.
With the four-wheel drive option you won’t have anti-lock braking when you
shift into four-wheel drive. But you will have regular braking. When you shift
back into two-wheel drive, you will have anti-lock again.
4-1 7
ProCarManuals.com