How to Reprogram Cobra Alarm Systems

by Sebastian Malysa

Every Cobra alarm system is sold with a deactivation card and a unique four digit programing code used solely for the purpose of programing and reprogramming the device. The device is reprogrammed when adding a new key fob or re-syncing key fob's after battery replacement. Reprogramming involves a straightforward procedure that requires only a few minutes of time.

Step 1

Enter your car and prepare all alarm key fobs for reprogramming even if only one requires programming by pressing and holding down both buttons on each remote for roughly 10 seconds until the LED's stop flashing.

Step 2

Turn the ignition back and forth between the "On" and "Off" positions three times within five seconds. The security LED on the Cobra alarm system will blink once to indicate programming mode is initiated.

Step 3

Turn the ignition key to the "On" position and count the number of blinks on the Cobra alarm system LED. Turn the ignition key to the "Off" position when the number of blinks corresponds to the first digit of your four digit programing code.

Step 4

Repeat Step 3 for the remaining three digits of your four digit programming code. Turn the ignition key to the "On" position once the code has been entered and the alarm LED will light up if the code was entered successfully.

Step 5

Press the largest button on one of the key fobs until the alarm LED turns off. It will flash back on if more than one remote is being programmed. Press the largest button on the remaining key fobs, one by one, until the alarm LED remains off.

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