1. Turn the vehicle’s ignition to the full ON position (the last position the ignition can be in before actually starting the vehicle. Do not start the vehicle) within 10 seconds:
2. Press and hold in the system’s programming button that’s built into the system’s antenna (commonly mounted on the inside top center of windshield) until the system sounds 3X then release the button, on remote starter only systems, just the dash lights will flash 3X, then within 10 seconds:

3. Press and hold the LOCK button on the transmitter (or CIRCLE ARROW button on 1 button remotes): the system will sound 1X (or dash lights will flash 1X on remote starter only systems) within 3 seconds indicating the transmitter has been programmed:
4. Repeat just step 3 on any additional transmitters at this time, up to a total of 4 transmitters can be programmed at a time. Turn the ignition off, remove keys and test remote.
Do not allow more than 10 seconds to lapse between steps or the program mode will automatically turn off and you will have to start over.