1999 CHEVROLET TAHOE fuses

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2-11 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.
Passlock
Your vehicle is equipped with the Passlock
theft
-deterrent system.
Passlock is a passive theft
-deterrent system. Passlock
enables fuel if the ignition lock cylinder is turned with a
valid key. If a correct key is not used or the ignition lock
cylinder is tampered with, fuel is disabled.During normal operation, the SECURITY light will go
off approximately five seconds after the key is turned to
the RUN ignition position.
If the engine stalls and the SECURITY light flashes,
wait until the light stops flashing before trying to restart
the engine. Remember to release the key from START
as soon as the engine starts.
If the engine is running and the SECURITY light comes
on, you will be able to restart the engine if you turn the
engine off. However, your Passlock system is not
working properly and must be serviced by your dealer.
Your vehicle is not protected by Passlock at this time.
You may also want to check the fuse (see ªFuses and
Circuit Breakersº in the Index). See your dealer
for service.
In an emergency, call the Roadside Assistance Center.

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2-34
Multifunction Lever
The lever on the left side of the steering column
includes your:

Turn Signal and Lane Change Indicator

Headlamp High/Low Beam Changer

Windshield Wipers

Windshield Washer

Cruise Control (If Equipped)
Turn Signal and Lane Change Indicator
The turn signal has two upward (for right) and two
downward (for left) 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.
An 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 arrow starts to flash. Hold it there until you
complete your lane change. The lever will return by
itself when you release it.
If you move the lever all the way up or down and the arrow
flashes at twice the normal rate, a signal bulb may be burned
out and other drivers may not see your turn signal.
If a bulb is burned out, replace it to help avoid an
accident. If the arrows don't go on at all when you
signal a turn, check for burned
-out bulbs and a blown
fuse (see ªFusesº in the Index).

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6-61 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 ªFuses and Circuit Breakersº in the Index
for more information.
Look at the silver
-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the identical size
and rating.
If you ever have a problem on the road and don't have a
spare fuse, you can borrow one that has the same
amperage. 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 the correct amperage.
Replace it as soon as you can.Instrument Panel Fuse Block
The fuse block access door
is on the driver's side edge
of the instrument panel. Pull
off the cover to access the
fuse block.
You can remove fuses with
a fuse extractor. The fuse
extractor is mounted to the
fuse block access door.
To remove fuses, if you don't have a fuse extractor, hold
the end of the fuse between your thumb and index finger
and pull straight out.
You may have spare fuses attached to the inside of
the fuse block access door. These can be used to
replace a bad fuse. However, make sure that it is the
correct amperage.

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6-63
Fuse/Circuit
BreakerUsage
14 4WD Indicator, Cluster, Front and
Rear Comfort Controls (If Equipped),
Instrument Switches, Radio
Illumination, Chime Module
15 DRL Relay, Fog Lamp Relay
16 Front and Rear Turn Signals,
Back
-Up Lamps, BTSI Solenoid
17 Radio (Ignition)
18 4WAL/VCM, ABS, Cruise Control
19 Radio (Battery)
20 PRNDL, Automatic Transmission,
Speedometer, Check Gages,
Warning Lights
21 Security/Steering
22 Not Used
23 Rear Wiper, Rear Washer Pump
24 Front Axle, 4WD Indicator Lamp,
TP2 Relay (Gasoline Engine)
A Power Door Lock, Six
-Way Power
Seat, Keyless Entry Module
B Power WindowsUnderhood Fuse/Relay Center
The underhood fuse/relay center is located in the rear of
the engine compartment near the brake fluid reservoir.
Move the retainer clips for the cover to access the
fuse block.
You can remove fuses with a fuse extractor. The fuse
extractor is mounted to the interior fuse block. To
remove fuses if you don't have a fuse extractor, hold the
end of the fuse between your thumb and index finger
and pull straight out.

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6-64
Name Circuits Protected
ECM
-B Fuel Pump, PCM/VCM
RR DEFOG Rear Window Defogger
(If Equipped)
IGN
-E Auxiliary Fan Relay Coil, A/C
Compressor Relay, Hot Fuel Module
FUEL SOL Fuel Solenoid (Diesel Engine)
GLOW PLUG Glow plugs (Diesel Engine)
HORN Horn, Underhood LampsName Circuits Protected
AUX FAN Auxiliary Fan
ECM
-1 Injectors, PCM/VCM
HTD ST
-FR Heated Front Seats
A/C Air Conditioning
HTD MIR Heated Outside Mirrors (If Equipped)
ENG
-1 Ignition Switch, EGR, Canister
Purge, EVRV Idle Coast Solenoid,
Heated O
2, Fuel Heater
(Diesel Engine), Water Sensor
(Diesel Engine)
HTD ST
-RR Not Used
LIGHTING Headlamp and Panel Dimmer
Switch, Fog and Courtesy Fuses
BATT Battery, Fuse Block Busbar
IGN
-A Ignition Switch
IGN
-B Ignition Switch
ABS Anti
-Lock Brake Module
BLOWER Hi Blower and Rear Blower Relays
STOP/HAZ Stoplamps
HEATED SEATS Heated Seats (If Equipped)

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9-2
Brake
Adjustment 6-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 6-30, 7-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Master Cylinder 6-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking 2-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pedal Travel 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing System Parts 6-34 . . . . . . . . . . . . . . . . . . . . . . . .
System Warning Light 2-74 . . . . . . . . . . . . . . . . . . . . . . . . .
Trailer 4-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission Shift Interlock Check 7-40 . . . . . . . . . . . . . . .
Wear 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brakes, Anti-Lock 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking 4-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking in Emergencies 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Break-In, New Vehicle 2-12 . . . . . . . . . . . . . . . . . . . . . . . . . .
Brightness Control 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BTSI Check 7-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb Replacement 6-35, 6-65, 6-66 . . . . . . . . . . . . . . . . . . . .
Camper Type Mirrors 2-50 . . . . . . . . . . . . . . . . . . . . . . . . . .
Canadian Roadside Assistance 8-7 . . . . . . . . . . . . . . . . . . . . . .
Capacities and Specifications 6-67 . . . . . . . . . . . . . . . . . . . . . .
Carbon Monoxide 2-9, 2-29, 4-41, 4-51, 4-52 . . . . . . . . . . .
Cargo Security Shade 2-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cargo Tie Downs 2-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cassette Deck Service 7-38 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cassette Tape Player 3-12, 3-15 . . . . . . . . . . . . . . . . . . . . . . .
Cassette Tape Player Care 3-28 . . . . . . . . . . . . . . . . . . . . . . . .
Cassette Tape Player Errors 3-14, 3-18 . . . . . . . . . . . . . . . . . .
Center High-Mounted Stoplamp Bulb Replacement 6-41 . . . .
Center Passenger Position 1-36 . . . . . . . . . . . . . . . . . . . . . . . .
Certification/Tire Label 4-44 . . . . . . . . . . . . . . . . . . . . . . . . . . Chains, Safety 4
-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chains, Tire 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing a Flat Tire 5-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System Warning Light 2-73 . . . . . . . . . . . . . . . . . . .
Check Gages Light 2-81 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Your Restraint Systems 1-63 . . . . . . . . . . . . . . . . . .
Chemical Paint Spotting 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . .
Child Restraints 1-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securing in a Rear Outside Seat Position 1-54 . . . . . . . . . . .
Securing in the Center Seat Position 1-56 . . . . . . . . . . . . . .
Securing in the Right Front Seat Position 1-57 . . . . . . . . . .
Top Strap 1-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Where to Put 1-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cigarette Lighter 2-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Breakers and Fuses 6-61 . . . . . . . . . . . . . . . . . . . . . . .
Cleaner, Air 6-16, 6-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning
Aluminum Wheels 6
-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Lamps/Lenses 6-55 . . . . . . . . . . . . . . . . . . . . . . . .
Fabric and Carpet 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glass 6-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside of Your Vehicle 6-51 . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Panel 6-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Plastic Components 6-53 . . . . . . . . . . . . . . . . . . . . .
Leather 6-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside of Your Vehicle 6-55 . . . . . . . . . . . . . . . . . . . . . . . .
Special Problems 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stains 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tires 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vinyl 6-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield and Wiper Blades 6-54 . . . . . . . . . . . . . . . . . . .

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9-5
Fuel 6-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Canada 6-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filling a Portable Container 6-8 . . . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gage 2-82 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In Foreign Countries 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Capacity 6-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses and Circuit Breakers 6-61 . . . . . . . . . . . . . . . . . . . . . . .
Gages
Engine Coolant Temperature 2-76 . . . . . . . . . . . . . . . . . . . .
Engine Oil Pressure 2-79 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel 2-82 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speedometer 2-71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tachometer 2-71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltmeter 2-74 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Garage Door Opener 2-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAWR 4-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Positions, Automatic Transmission 2-16 . . . . . . . . . . . . .
Glove Box 2-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GM Vehicle Care/Appearance Materials 6-58 . . . . . . . . . . . . .
Gross Axle Weight Rating 4-44 . . . . . . . . . . . . . . . . . . . . . . . .
Gross Vehicle Weight Rating 4-44 . . . . . . . . . . . . . . . . . . . . . .
Guide en Fran†ais ii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GVWR 4
-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Halogen Bulbs 6-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hazard Warning Flashers 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . .
Head Restraints 1-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Headlamps 2
-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb Replacement 6-35, 6-36, 6-37, 6-65 . . . . . . . . . . . . .
High/Low Beam Changer 2-35 . . . . . . . . . . . . . . . . . . . . . .
On Reminder 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring 6-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hearing Impaired, Customer Assistance 8-4 . . . . . . . . . . . . . .
Heated Front Seats 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heating 3-4, 3-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High-Beam Headlamps 2-35 . . . . . . . . . . . . . . . . . . . . . . . . . .
Highway Hypnosis 4-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill and Mountain Roads 4-36 . . . . . . . . . . . . . . . . . . . . . . . . .
Hitches, Trailer 4-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hood, Checking Things Under 6-8 . . . . . . . . . . . . . . . . . . . . .
Hood Release 6-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn 2-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydroplaning 4-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Positions 2-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Transmission Lock Check 7-41 . . . . . . . . . . . . . . . . .
Illuminated Entry 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation, Tire 6-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside Rearview Mirror 2-43, 2-47 . . . . . . . . . . . . . . . . . . . . .
Inspections 7-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake System 7-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Axle 7-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Cooling System 7-42 . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust System 7-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering 7-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Suspension 7-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Throttle System 7-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer Case (Four-Wheel Drive) 7-43 . . . . . . . . . . . . . . .

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9-8
Passing 4-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Passlock
2-11, 2-80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Periodic Maintenance Inspections 7-42 . . . . . . . . . . . . . . . . . .
Power
Auxiliary Outlet 2
-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Locks 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lumbar Adjustment 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Option Fuses 6-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Control Mirror 2-52 . . . . . . . . . . . . . . . . . . . . . . . .
Seat 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering Fluid 6-28, 7-44 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Winches 4-58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windows 2-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Lumbar Adjustment 1-3 . . . . . . . . . . . . . . . . . . . . . . . .
Pregnancy, Use of Safety Belts 1-28 . . . . . . . . . . . . . . . . . . . .
Problems on the Road 5-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Protecting Exterior Bright Metal Parts 6-56 . . . . . . . . . . . . . . .
Publications, Service and Owner 8-11, 8-12 . . . . . . . . . . . . . .
Radiator 5-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator Pressure Cap 6-24 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radio Reception 3-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radios 3-11, 3-12, 3-15, 3-19 . . . . . . . . . . . . . . . . . . . . . . . .
Rain, Driving In 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading Lamps 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear
Axle 6
-22, 7-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Child Security Locks 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lamp Bulb Replacement 6-41 . . . . . . . . . . . . . . . . . . . . . . .
Outside Seat Position 1-38 . . . . . . . . . . . . . . . . . . . . . . . . . . Safety Belt Comfort Guides 1
-41 . . . . . . . . . . . . . . . . . . . . .
Seat Passengers 1-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Window Defogger 3-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wiper and Washer 2-36 . . . . . . . . . . . . . . . . . . .
Rear Air Conditioning and Heating Systems 3-4 . . . . . . . . . . .
Rear Towing 5-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rearview Mirror 2-43, 2-47 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrochromic Day/Night with Compass 2-43 . . . . . . . . . .
Electrochromic Day/Night with Compass/Temperature
Display 2
-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside 2-43, 2-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reclining Front Seatbacks 1-4 . . . . . . . . . . . . . . . . . . . . . . . . .
Recovery Hooks 5-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recovery Tank, Coolant 5-13 . . . . . . . . . . . . . . . . . . . . . . . . . .
Recreational Vehicle Towing 4-42 . . . . . . . . . . . . . . . . . . . . . .
Refrigerants, Air Conditioning 6-68 . . . . . . . . . . . . . . . . . . . .
Removing the Rear (Third) Seat (Suburban) 1-12 . . . . . . . . . .
Replacement
Bulbs 6
-65, 6-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 6-69 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel, Used 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Safety Belts 1-63 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the Rear (Third) Seat (Suburban) 1-13 . . . . . . . . . .
Reporting Safety Defects 8-10 . . . . . . . . . . . . . . . . . . . . . . . . .
Restraints
Checking 1
-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Child 1-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Head 1-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Parts After a Crash 1-63 . . . . . . . . . . . . . . . . . . .
System Check 7-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse, Automatic Transmission 2-17 . . . . . . . . . . . . . . . . . .