Mongoose M8 Owner's Operation & Installation Manual page 10

REMOTE CONTROL CODE LEARNING
If you need to replace a remote control, it must be memorised to the alarm system before it can be used.
A power surge or interruption to the power supply may cause loss of memory.
If your alarm fails to respond to the remote try re-learning them.
The following action deletes any previous remotes, so all existing remotes must be memorised with this
sequence.
Turn the ignition key to the ON position.
Press and release the valet/programming switch 3 times (Siren Chirps)
Press the Lock Button of each transmitter you want programmed until you hear a chirp from the siren.
Press and release the valet/programming switch 1 time to advance to channel 2 UNLOCK. Press the
unlock button of each transmitter you want to unlock the vehicle.
Press and release the valet/programming switch 1 time to advance to channel 3 BOOT. Press the boot
button of each transmitter you want to operate the boot release of the vehicle.
Turn the ignition switch to the OFF position.
The above action programs the Lock, Unlock and Boot Release functions of the system