auxiliary battery CHEVROLET SILVERADO 1999 1.G Owners Manual

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4-69
Instrument Panel Jumper Wiring Harness
This harness is included with the heavy-duty and
camper/fifth-wheel trailer wiring packages. The harness
is for an electric trailer brake controller and includes a
trailer battery feed fuse. This harness and fuse should be
installed by your dealer or a qualified service center.
Auxiliary Battery (If Equipped)
The auxiliary battery provision can be used to supply
electrical power to additional equipment that you may
choose to add, such as a slide
-in camper.
If your vehicle has this
provision, this relay
will be located on the
passenger's side of the
vehicle, next to the
auxiliary battery.
When using this provision, connection should only be
made to the upper stud (A) of the relay. Do not make
connections to the lower stud (B) of the relay.
The auxiliary battery circuit is protected by a Megafuse
located behind the auxiliary battery.
Be sure to follow the proper installation instructions that
are included with any electrical equipment that you install.

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4-70
NOTICE:
When using the auxiliary battery provision, the
electrical load must not exceed 30 amps. Always
turn off any electrical equipment when not in use.
Leaving electrical equipment on for extended
periods will drain your battery.
Power Winches
If you wish to use a power winch on your vehicle, only
use it when your vehicle is stationary or anchored.
NOTICE:
Using a power winch with the transmission in
gear may damage the transmission. When
operating a power winch, always leave the
transmission in NEUTRAL (N).
Use the regular brakes, set the parking brake, or block
the wheels to keep your vehicle from rolling.
Step-Bumper Pad
If your vehicle has a rear step bumper, it may
be equipped with a rear step pad at the center of
the bumper.
If you will be using the
bumper to tow a trailer, you
must remove the center
cutout circle to install
the trailer ball.

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6-66
NAME Usage
L BODY Retained Accessory Power Relay
LOCK Power Door Locks
DRV UNLOCK Power Door Lock RelayNAME Usage
LOCK Power Door Lock Relay
HVAC 1 Climate Control System
CRUISE Cruise Control, Instrument Cluster
IGN 3 Ignition, Power Seats
4WD Four
-Wheel Drive System,
Auxiliary Battery
CRANK Starting System
INT PRK Parking Lamps, Sidemarker
Lamps, Interior Lamps
L DOOR Power Door Lock Relay
BRAKE Anti
-Lock Brake System
RR WIPER Not Used
ILLUM Interior Lamps
SEAT Power Seat Circuit Breaker

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9-1
Section 9 Index
A
ccessory Power Outlet 2-65 . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Equipment to the Outside of Your Vehicle 6-3 . . . . . .
Air Bag 1-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Equipment 1-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Does it Restrain 1-29 . . . . . . . . . . . . . . . . . . . . . . . . . .
How it Works 1-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location 1-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Off Light 1-33, 2-71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Off Switch 1-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Readiness Light 1-27, 2-71 . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing 1-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What Makes it Inflate 1-29 . . . . . . . . . . . . . . . . . . . . . . . . . .
What Will You See After it Inflates 1-29 . . . . . . . . . . . . . . .
When Should it Inflate 1-28 . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner Filter, Engine 6-16 . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner Filter Restriction Indicator Check 7-19 . . . . . . . .
Air Conditioning 3-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning Refrigerants 6-76 . . . . . . . . . . . . . . . . . . . . .
Air Dam Removal 4-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Dam Replacement 4-16 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Filter, Passenger Compartment 3-5, 6-18, 6-77 . . . . . . . .
Alignment and Balance, Tire 6-51 . . . . . . . . . . . . . . . . . . . . . .
Aluminum Wheels, Cleaning 6-59 . . . . . . . . . . . . . . . . . . . . . .
Antenna 3-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Antifreeze 6-29, 6-75, 7-25 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-Lock
Brake System Warning Light 2-74, 4-7 . . . . . . . . . . . . . . . .
Brakes 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appearance Care 6
-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appearance Care and Materials 6-62 . . . . . . . . . . . . . . . . . . . .
Arbitration Program 8-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Armrest Storage Compartment 2-64 . . . . . . . . . . . . . . . . . . . .
Ashtrays 2-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Equipment, Adding 3-26 . . . . . . . . . . . . . . . . . . . . . . . .
Audio Systems 3-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Transmission
Check 7
-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 6-19, 7-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Park Mechanism Check 7-22 . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your Engine 2-16 . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 2-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auxiliary Battery 4-69 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auxiliary Roof Mounted Lamp Switch 2-54 . . . . . . . . . . . . . .
Axle, Front 6-27, 7-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Axle, Locking Rear 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Axle, Rear 6-25, 7-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery 6-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auxiliary 4-69 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Message 2-82 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement, Keyless Entry 2-7 . . . . . . . . . . . . . . . . . . . . .
Run-Down Protection 2-56 . . . . . . . . . . . . . . . . . . . . . . . . .
Warnings 5-3, 5-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BBB Auto Line 8-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .