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Adding/Replacing Transmitters
To replace lost or stolen transmitters or to add additional transmitters into the system, have all desired
transmitters ready and follow the steps below.
Note: Up to 4 one-way transmitters can be programmed to operate the system. Any previously stored
transmitter codes will be erased if they are not programmed within the following sequence.
To program the transmitter(s):
1. Turn on the ignition key On, Off, On, Off, and back On. (Key On 3 times)
· The siren will chirp 3 times.
2. Press and hold the Override switch for 5 seconds.
· The siren will chirp 5 times.
· The LED will illuminate.
3. Press Button 1 on the first transmitter.
4. Repeat steps 3 for each additional transmitter (up to 4).
5. Turn off the ignition key.
Two Car Operation
If two vehicles are equipped with ASTRA system, for convenience both can be operated using the same
remote transmitter. If all four transmitters are to be used with both cars, program transmitters A and B into
the first vehicle in the manner described above. Program transmitters C and D by pressing the Shift button
twice before performing step 3 .
When finished programming the first vehicle, program transmitters C and D into the second vehicle as
normal, then program transmitters A and B by pressing the Shift button twice before performing steps 3.
When programmed in this manner, the driver of the first car can also operate the second vehicle by pressing
the Shift button twice and the desired function button.
Battery Replacement
Your Astra Remote Transmitter uses a 12 volt alkaline battery (type 23A), which will require replacement in
time. Depending on the amount of use, the battery may last up to six months or more before it needs
replacement. When the battery needs replacing, the system’s operating range will decrease or the
transmitter LED may not be as bright.
In order to change the battery, first remove 2 screws from the back of the transmitter and separate the top
and bottom halves of the case. While replacing the battery make sure that the positive and negative
terminals are positioned correctly, then carefully reassemble the transmitter case.
ASTRA/G55 - Page 3