1999 CHEVROLET ASTRO door lock

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Resynchronization
Resynchronization may be necessary due to the security
method used by this system. The transmitter does not
send the same signal twice to the receiver. The receiver
will not respond to a signal it has been sent previously.
This will prevent anyone from recording and playing
back the signal from the transmitter.
To resynchronize your transmitter, stand close to your
vehicle and simultaneously press and hold the LOCK
and UNLOCK buttons on the transmitter for eight
seconds. The door locks should cycle to confirm
synchronization. If the locks do not cycle, see your
dealer for service.Sliding Door
To open the sliding side door, pull the handle toward the
back and slide the door to the rear until it rests in the
open position.
To close the sliding side door, pull the handle toward the
front and slide the door forward.

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2-11 Sliding Door Security Lock
Your vehicle's sliding side
door is equipped with a
security door lock, located
at the front of the
sliding door.
There are two labels on your vehicle to remind you that
you have this feature. One can be seen from the outside
on your sliding door. It is located near the bottom of the
door glass, toward the front of the door. The other
label is at the front of the sliding door, near the security
door lock.This feature prevents passengers from opening the
sliding side door from the inside.
To use this feature, do the following:
1. Move the lever all the way up.
2. Close the door.
To open the sliding side door while the security lock is
engaged, unlock the door and open it from the outside.
If you don't cancel the security lock feature, adults or
older children who ride in the rear won't be able to open
the sliding door from the inside. You should let adults
and older children know how the security door lock
works, and how to cancel the lock.

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2-12 Canceling the Sliding Door Security Lock
To cancel the security lock:
1. Unlock the door and open it from the outside.
2. Move the lever all the way down.CAUTION:
If your vehicle is facing downward on a steep
grade (15 percent or more), the door may not
stay open and could slam shut, possibly injuring
someone. To make sure the door does not slam
shut, be sure to hold it open until everyone is
clear of the door, and only then allow it to
slowly close.

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Hatch
CAUTION:
It can be dangerous to drive with the rear
swing
-out windows, rear hatch or rear doors
open because carbon monoxide (CO) gas can
come into your vehicle. You can't see or smell
CO. It can cause unconsciousness and even death.
If you must drive with the rear swing-out windows,
rear hatch or rear doors open or if electrical wiring
or other cable connections must pass through the
seal between the body and the rear swing
-out
windows, rear hatch or rear doors:

Make sure all other windows are shut.

Turn the fan on your heating or cooling
system to its highest speed with the setting
on anything but MAX A/C. That will force
outside air into your vehicle. See ªComfort
Controlsº in the Index.

If you have air outlets on or under the
instrument panel, open them all the way.
See ªEngine Exhaustº in the Index.
Hatch Release (Option)
You can use your key to unlock the hatch and all the
other doors from the outside. Insert the key into the
hatch release button and turn it counterclockwise. All
doors will unlock.
You may also use the Keyless Entry System
described earlier.
The hatch can be opened or closed without a key if the
door lock system is unlocked.
To open the hatch, unlock it, press the button and lift the
handle located in the center of the door.

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To lock the power lock system from the outside, insert
the key in the hatch release button and turn it clockwise.
All doors will lock.
Also, see the Caution following ªHatch,º located in
this section.
Theft
Vehicle theft is big business, especially in some cities.
Although your vehicle has a number of theft
-deterrent
features, we know that nothing we put on it can make
it impossible to steal. However, there are ways you
can help.
Key in the Ignition
If you leave your vehicle with the keys inside, it's an
easy target for joy riders or professional thieves
-- so
don't do it.
When you park your vehicle and open the driver's door,
you'll hear a tone reminding you to remove your key
from the ignition and take it with you. Always do this.
Your steering wheel will be locked, and so will your
ignition and transmission. Also remember to lock
the doors.
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 key? Do not leave
valuables in your vehicle, since there is no locking area
in which to secure them. Lock all 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.

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Locking Rear Axle
If your vehicle has this feature, your locking rear axle
can give you additional traction on snow, mud, ice, sand
or gravel. It works like a standard axle most of the time,
but when one of the rear wheels has no traction and the
other does, this feature will allow the wheel with
traction to move the vehicle.
All-Wheel Drive (Option)
If your vehicle has
all
-wheel drive, your
engine's driving power is
sent to all four wheels for
extra traction when needed.
This is like four
-wheel drive, but there is no separate lever
or switch to engage or disengage the front axle. It is fully
automatic, and adjusts itself as needed for road conditions.
You may experience a brief vehicle vibration upon
acceleration when driving in slippery conditions. This is
normal and is an indication that the all
-wheel drive
system is functioning properly.
Windows
Manual Windows
To open your manual windows, turn the hand crank on
each door to raise or lower your side door windows.
Power Windows (If Equipped)
If you have the optional power windows, the controls
are on each of the front side doors. The driver's door has
a switch for the front passenger window as well. Your
power windows will not move unless the ignition has
been turned to RUN or ACCESSORY.

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Sun Visors
To block out glare, you can swing down the visors. You
can also swing them from side to side. Your visors may
have an extension that can be pulled out for additional
glare protection and a strap for holding small items,
such as maps.
Visor Vanity Mirror (If Equipped)
Some visors have mirrors built in, with or without
lamps. Just lift the mirror cover on each visor to turn the
lamps on, if you have them.
Lighted mirrors also have an intensity switch to make
the mirror lamps brighter or dimmer.
Accessory Power Outlets
You can plug auxiliary electrical equipment into
accessory power outlets. Just pull up from the bottom
of the door and follow the proper installation
instructions that are included with any electrical
equipment that you install.
Two accessory power outlets are located on the
passenger's side of the engine cover.
Another accessory power outlet is located on the
driver's side behind the third row seating position, near
the floor.
These circuits are protected by a fuse and have
maximum current levels.
NOTICE:
When using the accessory power outlets,
maximum electrical load must not exceed
25 amps. Always turn off any electrical
equipment when not in use. Leaving electrical
equipment on for extended periods will drain
your battery.

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5-20 Removing the Spare Tire and Tools
The jacking equipment you'll need is stored by your
vehicle's rear doors, along the passenger's side wall.
1. Remove your jack cover by pulling it away from the
side wall and down to release the tabs securing the
top of the cover.
2. Remove the wheel blocks by turning the top nut
counterclockwise.
3. Remove the nut and washer, then pull the wheel
blocks off the bolt.
4. Push down on the bolt and remove the hooked end
from the slot. Slide the jack toward the front of the
vehicle and lift it from the mounting.
5. Remove the extension and the ratchet from
the pouch.