Anti-Scan Feature
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
To provide added security, the keypad is disabled for one minute after 35 button presses without a valid entry code being entered. The keypad flashes during this one-minute mode with all functionality disabled except for 7/8 and 9/0 still being allowed to lock the vehicle.
Anti-scan is turned off after one minute of keypad inactivity.