lock CHEVROLET SUBURBAN 1999 8.G Manual PDF

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4-43 Four-Wheel Drive Vehicles
CAUTION:
Shifting the transfer case into NEUTRAL (N) can
cause your vehicle to roll even if the transmission
is in PARK (P), for an automatic transmission.
You or others could be injured. Make sure the
parking brake is firmly set before you shift the
transfer case into NEUTRAL (N).
Use the following procedure to correctly tow your
vehicle on all four wheels:
1. Firmly set the parking brake.
2. Place the transmission in PARK (P).
3. Securely attach the vehicle being towed to the
tow vehicle.
4. With the engine running, shift the transfer case to
NEUTRAL (N). See ªFour
-Wheel Driveº in the
Index for the proper procedure to select the neutral
position for your vehicle.
5. Release the parking brake only after the vehicle
being towed is firmly attached to the towing vehicle.
6. Turn the ignition to OFF. The OFF position unlocks
the steering column and reduces battery drain.
Unlocking the steering column will allow the proper
movement of the front wheels and tires during towing.

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4-58
This harness has a 30 amp battery feed wire and no
connector, and should be wired by a qualified electrical
technician. After choosing an aftermarket mating
connector pair, have the technician attach one connector
to the eight
-wire trailer harness and the other connector
to the wiring harness on the trailer. Be sure that the
wiring harness on the trailer is strapped to the trailer's
frame and leave it loose enough so that the wiring doesn't
bend or break, but not so loose that it drags on the
ground. The technician can use the following color code
chart when connecting the wiring harness to your trailer.

Brown: Rear Lamps

Yellow: Left Stoplamp and Turn Signal

Dark Green: Right Stoplamp and Turn Signal

White (Heavy Gauge): Ground

Light Green: Back
-up Lamps

White (Light Gauge): Center High
-Mounted
Stop Lamp

Blue: Auxiliary/Electric Trailer Brake Circuit

Orange: Fused Auxiliary Circuit
Store the harness in its original place. Wrap the harness
together and tie it neatly so it won't be damaged.
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.

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5-16 How to Add Coolant to the Radiator
1. You can remove the radiator pressure cap when the
cooling system, including the radiator pressure cap
and upper radiator hose, is no longer hot. Turn the
pressure cap slowly counterclockwise until it first
stops. (Don't press down while turning the
pressure cap.)
If you hear a hiss, wait for that to stop. A hiss means
there is still some pressure left.
2. Then keep turning the pressure cap, but now push
down as you turn it. Remove the pressure cap.

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5-20
Changing a Flat Tire
If a tire goes flat, avoid further tire and wheel damage
by driving slowly to a level place. Turn on your hazard
warning flashers.
CAUTION:
Changing a tire can cause an injury. The vehicle
can slip off the jack and roll over you or other
people. You and they could be badly injured.
Find a level place to change your tire. To help
prevent the vehicle from moving:
1. Set the parking brake firmly.
2. Put the shift lever in PARK (P).
3. If you have a four
-wheel-drive vehicle,
be sure the transfer case is in a drive
gear
-- not in NEUTRAL (N).
4. Turn off the engine.
To be even more certain the vehicle won't move,
you can put blocks at the front and rear of the
tire farthest away from the one being changed.
That would be the tire on the other side of the
vehicle, at the opposite end.
The following steps will tell you how to use the jack and
change a tire.
Removing the Spare Tire and Tools
The equipment you'll need is located in the rear cargo
area. You'll also find your spare tire there.
On two
-door utility and Suburban models, the spare tire
is located at the rear of the vehicle. To remove the spare
tire, first open the tire cover, if you have one. Turn the
wing nut counterclockwise and take it, and the adapter,
off the bolt. Take the tire out of the vehicle and remove
the tire cover.

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5-22
If your two-door utility
model has a jack cover,
turn the wing nut
counterclockwise and
take the cover off.
To take the jack out, turn the wing nut counterclockwise
and take it and the retainer off. Take the jack and storage
box out and take the tools out of the box.
Your vehicle may have a pair of emergency gloves
secured to the jack. You can use them when changing
the tire, or during other emergency situations.
Remember to replace them with the jack, so you will
have them if needed later.
To open the jack cover on four-door utility models, turn
the wing nut counterclockwise and take the cover off.
To take the jack out, turn the wing
-head bolt
counterclockwise and take it and the retainer off. Take
the jack and storage box out and take the tools out of
the box.
Your vehicle may have a pair of emergency gloves
secured to the jack. You can use them when changing
the tire, or during other emergency situations.
Remember to replace them with the jack, so you will
have them if needed later.

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5-23
If your Suburban has a jack cover, lift the tab up to
release the cover, then take it off.
To take the jack out, turn the wing nut counterclockwise
and take it and the retainer off. Take the jack and storage
box out and take the tools out of the box.
Your vehicle may have a pair of emergency gloves
secured to the jack. You can use them when changing
the tire, or during other emergency situations.
Remember to replace them with the jack, so you will
have them if needed later.The tools you'll be using include the jack (A), the jack
handle extension (B), jack handle (C), wheel wrench (D)
and the ratchet (E).
The jack handle extension is used if the flat tire is on the
rear of the vehicle.

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5-25
With the UP marking on the ratchet facing you, rotate
the ratchet clockwise. That will lift the jack head a little.
If your vehicle has wheel
nut caps, use the wheel
wrench and ratchet to
remove them. Turn
the wheel wrench
counterclockwise, with
DOWN facing you, to
remove the wheel nut caps.
Then take off the hub cap.
If the wheel also has a trim ring, use the wheel wrench
to pry along the edge and remove it.
If the wheel has a smooth center piece, place the wheel
wrench in the slot on the wheel and gently pry it off.

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5-26 Removing the Flat Tire and Installing the
Spare Tire
1. Use the ratchet and
wheel wrench to loosen
all the wheel nuts. Turn
the wheel wrench
counterclockwise, with
DOWN facing you, to
loosen the wheel nuts.
Don't remove the wheel
nuts yet.
2. If the flat tire is on the rear of the vehicle, put the
jack handle extension on the jack handle.
3. Position the jack under the vehicle. If the flat tire is
on the front of the vehicle, position the jack on the
frame behind the flat tire. If the flat tire is on the rear
of the vehicle, position the jack on the axle near the
flat tire between the spring and the shock absorber.

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5-27
CAUTION:
Getting under a vehicle when it is jacked up is
dangerous. If the vehicle slips off the jack, you
could be badly injured or killed. Never get under
a vehicle when it is supported only by a jack.
CAUTION:
Raising your vehicle with the jack improperly
positioned can damage the vehicle and even make
the vehicle fall. To help avoid personal injury and
vehicle damage, be sure to fit the jack lift head
into the proper location before raising the
vehicle.
Front Position Rear Position
4. With UP on the ratchet facing you, raise the vehicle
by rotating the ratchet and wheel wrench clockwise.
Raise the vehicle far enough off the ground so there
is enough room for the spare tire to fit.

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5-29
7. Replace the wheel
nuts with the
rounded end of the
nuts toward the
wheel. Tighten
each wheel nut by
hand using the
wheel wrench until
the wheel is held
against the hub.
Front Position Rear Position8. Lower the vehicle by rotating the ratchet and
wheel wrench counterclockwise. Lower the
jack completely.
9. Tighten each
wheel nut by
rotating the wheel
wrench clockwise.