I recently purchased my used 2007 King Ranch, and the previous owner never used the exterior door lock feature. I'm talking about the five buttons right underneath the driver side door handle (the buttons are: 1-2, 3-4, 5-6, 7-8, 9-0). So, I do not know what the 5-digit code is, and, worse, I don't even know how to use the code if I have it.
1. Can anyone tell me how to obtain the code, short of spending a stupid amount of money for a dealership to get it for me?
2. Can anyone tell me how it works? Is it as simple as entering the 5 digits and the door lock pops open? Or is there some sort of sequence or other step that's required?
3. Is this door lock tied to the electrical system? Am assuming that if the battery is good, the lock will work, but if the battery dies does the code then get forgotten? Help!