1994 GMC SIERRA fuse

These symbols are used on warning and indicator lights:
Engine Coolant
Temperature Battery Charging
System
I I RELEASE I
Brake Parking Brake
Release
0
SHIFT
Shift Light
Here are some other symbols you may see:
Fuse
Fuel
Hood Release Lighter
I
Engine Oil
Pressure
Low Coolant
I Horn
ix
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

Heavy snow or ice 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
the circuit is 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 word
PUSH on it.
To spray washer fluid
on the windshield,
push the paddle.
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
either
stop or return to the preset speed.
Driving without washer fluid can be dangerous. A bad mud splash can block
your vision.
You could hit another vehicle or go off the road. Check your
washer fluid level often.
Remember,
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.
2-43
ProCarManuals.com

lnstument Panel
1 23 456 7093 10 3 1
17 1.6
15 14
13 12
I. Side Window Defogger Vents
2. Light Controls
3. Air Vents
4. Multifunction Lever
5. Tilt Lever
6. Instrument Cluster
7. Gearshift Lever
8. Audio System
9. Comfort Control System
11
10. Glove Box
1 1. Audio System
12. Ashtray
13. Rear Window Defogger Switch
14. Air Vent Handles
15. Cargo Lamp Switch or Dome
Light Override Switch
16. Fuse Panel
17. Parking Brake Release Handle
lnstrument Cluster
Your instrument cluster is designed to let you know at a glance how your
vehicle is running. You’ll know
how fast you’re going, about how much
fuel you have and many other things you’ll need
to know to drive safely and
economically.
Tachometer Cluster
If you have the tachometer cluster, it looks different but will tell you
everything the standard cluster does, with
the addition of displaying your
engine’s revolutions per minute (rpm).
2-67
ProCarManuals.com

If equipment such as a cap or camper is installed, a wire labele\
d “Center
High Mount Stop lamp
(CHMSL) feed” is provided along the left rear frame
rail. This wire should be used to connect a
CHMSL on the cap or camper.
Camper Wiring Harness (Option)
An optional 5-wire
harness is stored in the
front stake pocket on
the driver’s side of the
bed. The harness has no connector, and should be wired by a
qualified electrical
technician.
It must be routed out of your vehicle and securely attached
so that it won’t
be pulled or rubbed while you’re using it.
Store the harness in its original position. Wrap the harness together and tie it
neatly so it won’t be damaged.
Trailer Wiring Harness (Option)
An optional 7-wire
harness is stored under
your vehicle along the
rear frame
crossmember. The
harness has a
30 amp.
in-line fused battery
feed wire and
no
connector, and should
be wired by a
qualified electrical
technician.
Securely attach the harness to the trailer, then tape or strap\
it to your
vehicle’s frame rail. Be sure you leave it loose enough
so the wiring won’t
bind or break when turning with
the trailer, but not so loose that it drags on
the ground.
Store the harness in its original position. Wrap the harness together and tie it
neatly
so it won’t be damaged.
2-83
ProCarManuals.com

Checking Things Under the Hood (continued)
Windshield Washer Fluid
................................. 6-45
Brake Master Cylinder
................................... 6-46
Replacing Brake System Parts
................................ 6-49
Other Maintenance Items
.................................... 6-49
Windshield Wiper Blade Inserts
.............................. 6-50
FluidLeakCheck
.......................................... 6-51
Lubrication
............................................... 6-51
Battery .................................................. 6-52
Vehiclestorage
......................................... 6-52
Bulb Replacement
......................................... 6-53
Fuses and Circuit Breakers
.................................. 6-62
Exhaustsystem
........................................... 6-64
Loading Your Vehicle
...................................... 6-64
Tires .................................................... 6-71
Inflation-Tire Pressure
.................................. 6-71
Tire Inspection and Rotation
............................... 6-73
When it’s Time for New Tires
............................. 6-74
Buying New Tires
....................................... 6-76
Uniform Tire Quality Grading
............................. 6-77
Wheel Alignment and Tire Balance
......................... 6-78
Wheel Replacement
..................................... 6-78
Tire Chains
............................................ 6-79
Appearancecare
.......................................... 6-80
Cleaning the Inside of Your Vehicle
......................... 6-81
Cleaning the Outside
of Your Vehicle ....................... 6-84
Appearance Care Materials
.................................. 6-87
Vehicle Identification Number
................................ 6-88
Service Parts Identification
Label ............................. 6-90
Specifications Charts
..................................... 6-91
6-2
ProCarManuals.com

4. Push in gently on
the bulb, turn it to
the left and
remove it from
the socket.
5. Put in a new bulb and, pushing in
gently, turn it to
the right until it is
tight.
6. Put the socket back in the light assembly and replace the lens and lens
seal.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from short circuits by a
combination of fuses, circuit breakers, and fusible thermal links in the
wiring itself. This greatly reduces the chance of fires caused by electrical
problems. See “Fuses and Circuit Breakers” in the Index for more
information.
Headlights
The headlight wiring is protected by a circuit breaker in the \
light switch. An
electrical overload will cause the lights to flicker on and of\
f, or in some
cases to remain
off. If this happens, have your headlight wiring checked
right away.
Windshield Wipers
The windshield wiper motor is protected 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 the circuit is protected from electrical \
overload,
overload due to heavy snow, etc., may cause .wiper linkage damage. Always
clear ice and heavy snow from the the windshield before using \
the
windshield wipers.
If the overload is caused by some electrical problem and
not snow, etc., be sure to get it fixed.
Power Windows and Other Power Options
Circuit breakers in the fuse panel protect the power windows and other
power accessories. When the current load is too heavy, the circuit breaker
opens and closes. This protects the circuit until the current \
load returns to
normal or the problem is fixed
.
6-62
ProCarManuals.com

Trailer Wiring Harness
The optional seven-wire trailer wiring harness is protected by an in-line
fuse
in the battery feed wire. This fuse is near the junction block. See
“Trailer Wiring Harness”
in the Index for more information.
Fuse Block
The fuse block is
behind an access door
at the bottom of the
instrument panel,
next
to the parking brake
release lever.
To remove fuses if you don’t have one, hold the end of the fuse between
your thumb and index finger and pull straight out.
Be, sure to use the correct fuse.
If you ever have a problem on the road and
don’t have a spare fuse, you can “borrow” one of the correct value. Just pick
some feature
of your vehicle that you can get along without-like the radio
or cigarette lighter--and use
its fuse, if it is of the value you need. Replace
it as soon as you can. See “Fuses and Circuit Breakers“ in the Index for
more information.
6-63
ProCarManuals.com