1999 CHEVROLET TAHOE key battery

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1-35
If your vehicle ever gets into a lot of water -- such as
water up to the carpeting or higher
-- or if water enters
your vehicle and soaks the carpet, the air bag controller
can be soaked and ruined. If this ever happens, and then
you start your vehicle, the damage could make the air
bags inflate, even if there's no crash. You would have to
replace the air bags as well as the sensors and related
parts. If your vehicle is ever in a flood, or if it's exposed
to water that soaks the carpet, you can avoid needless
repair costs by turning off the vehicle immediately and
disconnecting the battery cables. Don't let anyone start
the vehicle under any circumstances. See your dealer
for service.
Servicing Your Air Bag-Equipped Vehicle
Air bags affect how your vehicle should be serviced.
There are parts of the air bag system in several places
around your vehicle. You don't want the system to
inflate while someone is working on your vehicle. Your
dealer and the GM service manual have information
about servicing your vehicle and the air bag system. To
purchase a service manual, see ªService and Owner
Publicationsº in the Index.
CAUTION:
For up to 10 minutes after the ignition key is
turned off and the battery is disconnected, an air
bag can still inflate during improper service. You
can be injured if you are close to an air bag when
it inflates. Avoid wires wrapped with yellow tape
or yellow connectors. They are probably part of
the air bag system. Be sure to follow proper
service procedures, and make sure the person
performing work for you is qualified to do so.
The air bag system does not need regular maintenance.

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2-6
Keyless Entry System (If Equipped)
If your vehicle has this option, you can lock and unlock
your doors from about 3 feet (1 m) up to 30 feet (9 m)
away using the remote keyless entry transmitter supplied
with your vehicle.
Your interior lamps will be illuminated for a set period
of time when the transmitter signal is received by the
Keyless Entry System. In addition, your vehicle's horn
will chirp if you press the LOCK button twice, to let you
know that the doors have locked.
Your keyless entry system operates on a radio frequency
subject to Federal Communications Commission (FCC)
Rules and with Industry Canada.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference,
and (2) this device must accept any interference
received, including interference that may cause
undesired operation.
This device complies with RSS
-210 of Industry Canada.
Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this
device must accept any interference received, including
interference that may cause undesired operation of
the device.Changes or modifications to this system by other than an
authorized service facility could void authorization to
use this equipment.
This system has a range of about 3 feet (1 m) up to
30 feet (9 m). At times you may notice a decrease in
range. This is normal for any remote keyless entry
system. If the transmitter does not work or if you have
to stand closer to your vehicle for the transmitter to
work, try this:

Check to determine if battery replacement or
transmitter resynchronization is necessary. See the
instructions that follow.

Check the distance. You may be too far from your
vehicle. You may need to stand closer during rainy
or snowy weather.

Check the location. Other vehicles or objects may be
blocking the signal. Take a few steps to the left or
right, hold the transmitter higher, and try again.

If you're still having trouble, see your dealer or a
qualified technician for service.

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2-7 Operation
To unlock the driver's door, press the UNLOCK button.
The interior lamps will come on for 40 seconds or until
the ignition is turned on. If you press this button again
within five seconds, all the remaining doors will unlock.
Press the LOCK button to lock all the doors. The interior
lamps will come on for two seconds as soon as all the
doors are closed. If you press the LOCK button twice the
horn will chirp to confirm that the doors are locked.
If you do not want the horn to chirp as a confirmation
that the doors have locked or unlocked, please consult
your dealer.
The rear cargo doors or tailgate glass will unlock
automatically when the REAR button on the transmitter
is pressed twice within three seconds. If your vehicle is
equipped with a rear liftglass, pressing the REAR button
twice within three seconds will release the liftglass, but
only if the transmission selector is in PARK (P). The
interior lamps will come on for 40 seconds or until the
ignition is turned on.
Matching Transmitter(s) To Your Vehicle
Each remote keyless entry transmitter is coded to
prevent another transmitter from unlocking your vehicle.
If a transmitter is lost or stolen, a replacement can bepurchased through your dealer. Remember to bring any
remaining transmitters with you when you go to your
dealer. When the dealer matches the replacement
transmitter to your vehicle, any remaining transmitters
must also be matched. Once your dealer has coded the
new transmitter, the lost transmitter will not unlock your
vehicle. Each vehicle can have only four transmitters
matched to it.
Battery Replacement
Under normal use, the battery in your remote keyless
entry transmitter should last about two years.
You can tell the battery is weak if the transmitter won't
work at the normal range in any location. If you have to
get close to your vehicle before the transmitter works,
it's probably time to change the battery.
NOTICE:
When replacing the battery, use care not to touch
any of the circuitry. Static from your body
transferred to these surfaces may damage
the transmitter.
Use one three volt, type CR2032, or equivalent battery.

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NOTICE:
Don't try to shift to PARK (P) if your vehicle is
moving. If you do, you could damage the
transmission. Shift to PARK (P) only when your
vehicle is stopped.
How to Start the Engine
1. Without pushing the accelerator pedal, turn your
ignition key to START. When the engine starts, let
go of the key. The idle speed will go down as your
engine gets warm.
NOTICE:
Holding your key in START for longer than
15 seconds at a time will cause your battery
to be drained much sooner. And the excessive
heat can damage your starter motor. Wait about
15 seconds between each try to help avoid
draining your battery or damaging your starter.
2. If it doesn't start right away, hold your key in
START. If it doesn't start in 10 seconds, push the
accelerator pedal all the way down for five more
seconds, unless it starts sooner.
3. If your engine still won't start (or starts but then
stops), wait 15 seconds and start over.
When the engine starts, let go of the key and the
accelerator pedal.
NOTICE:
Your engine is designed to work with the
electronics in your vehicle. If you add electrical
parts or accessories, you could change the way
the engine operates. Before adding electrical
equipment, check with your dealer. If you don't,
your engine might not perform properly.
If you ever have to have your vehicle towed, see
the part of this manual that tells how to do it
without damaging your vehicle. See ªTowing
Your Vehicleº in the Index.

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2-16
Automatic Transmission Operation
There are several different positions for your shift lever.
Your vehicle features an electronic shift position indicator
within the instrument cluster. This display must be
powered anytime the shift lever is capable of being moved
out of PARK (P). This means that if your key is in OFF,
rather than LOCK, there will be a small current drain on
your battery which could discharge your battery over a
period of time. If you need to leave your key in the
ignition in OFF for an extended period for any reason, it is
recommended that you disconnect the battery cable from
the battery to prevent discharging your battery.
PARK (P): This locks your rear wheels. It's the best
position to use when you start your engine because your
vehicle can't move easily.
CAUTION:
It is dangerous to get out of your vehicle if the
shift lever is not fully in PARK (P) with the
parking brake firmly set. Your vehicle can roll.
Don't leave your vehicle when the engine is
running unless you have to. If you have left the
engine running, the vehicle can move suddenly.
You or others could be injured. To be sure your
vehicle won't move, even when you're on fairly
level ground, always set your parking brake and
move the shift lever to PARK (P).
If you have four-wheel drive, your vehicle
will be free to roll
-- even if your shift lever
is in PARK (P)
-- if your transfer case is in
NEUTRAL (N). So, be sure the transfer case is in
a drive gear, two
-wheel high (2H) or four-wheel
high (4H) or four
-wheel low (4L) -- not in
NEUTRAL (N). See ªShifting Into PARK (P)º in
the Index. If you're pulling a trailer, see ªTowing
a Trailerº in the Index.

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2-73 Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows AIR BAG. The system checks the
air bag's electrical system for malfunctions. The light
tells you if there is an electrical problem. The system
check includes the air bag sensors, the air bag modules,
the wiring and the crash sensing and diagnostic module.
For more information on the air bag system, see ªAir
Bagº in the Index.
This light will come on
when you start your engine,
and it will flash for a few
seconds. Then the light
should go out. This means
the system is ready.
If the air bag readiness light stays on after you start the
engine or comes on when you are driving, your air bag
system may not work properly. Have your vehicle
serviced right away.
The air bag readiness light should flash for a few
seconds when you turn the ignition key to RUN. If the
light doesn't come on then, have it fixed so it will be
ready to warn you if there is a problem.
Charging System Warning Light
The charging system
warning light should come
on briefly when you turn on
the ignition, before starting
the engine, as a check to
show you it is working.
After the engine starts, the light should go out. If it stays
on or comes on while you are driving, you may have a
problem with your charging system. It could indicate a
problem with the generator drive belt, or some other
charging system problem. Have it checked right away.
Driving while this light is on could drain your battery.
If you must drive a short distance with this light on, it
helps to turn off all your accessories, such as the radio
and the air conditioner.

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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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Section 9 Index
A
ir Bag 1-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Equipment 1-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Does it Restrain 1-33 . . . . . . . . . . . . . . . . . . . . . . . . . .
How it Works 1-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location 1-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Readiness Light 1-31, 2-73 . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing 1-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What Makes it Inflate 1-33 . . . . . . . . . . . . . . . . . . . . . . . . . .
What Will You See After it Inflates 1-33 . . . . . . . . . . . . . . .
When Should it Inflate 1-32 . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner 6-16, 6-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner Filter Restriction Indicator Check 7-39 . . . . . . . .
Air Conditioning 3-3, 3-4, 3-7 . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning Refrigerants 6-68 . . . . . . . . . . . . . . . . . . . . .
Alignment and Balance, Tire 6-48 . . . . . . . . . . . . . . . . . . . . . .
Aluminum Wheels, Cleaning 6-56 . . . . . . . . . . . . . . . . . . . . . .
Antenna, Fixed 3-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Antifreeze 6-25, 7-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-Lock, Brake System Warning Light 2-75, 4-7 . . . . . . . .
Anti-Lock, Brakes 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-Theft, Radio 3-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appearance Care 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appearance Care and Materials 6-58 . . . . . . . . . . . . . . . . . . . .
Arbitration Program 8-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Armrest Storage Compartment 2
-58 . . . . . . . . . . . . . . . . . . . .
Ashtrays 2-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Equipment, Adding 3-27 . . . . . . . . . . . . . . . . . . . . . . . .
Audio Systems 3-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Transmission
Check 7
-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 6-19, 7-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 2-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overdrive 2-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Park Mechanism Check 7-41 . . . . . . . . . . . . . . . . . . . . . . . .
Shifting 2-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auxiliary Power Outlet 2-63 . . . . . . . . . . . . . . . . . . . . . . . . . .
Axle, Front 6-24, 7-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Axle, Locking Rear 2-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Axle, Rear 6-22, 7-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery 6-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement, Keyless Entry 2-7 . . . . . . . . . . . . . . . . . . . . .
Warnings 5-3, 5-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BBB Auto Line 8-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Better Business Bureau Mediation 8-3 . . . . . . . . . . . . . . . . . . .
Blizzard 4-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .