Why am I unable to manually lock/unlock with the key fob?

When you are in range of the system with a key fob, you are not able to manually lock/unlock the doors as the system sees that you are in range of the vehicle, it will keep the doors unlocked while you are near it. If you want to test the manual lock/unlock with the fob make sure you are out of range, the system status LED will blink Blue-Red-Blue when you are out of range.