Let me first say that I am truly amazed at the knowledge some of the members on TC demonstrate about the Taco. I consider myself fairly knowledgeable about vehicles but I'm sure that's due to my age and experience having worked on my own cars my whole life. Be that as it may I bow to the knowledge of some of the human-computers on this site.
FWIW I went to a fairly local dealership (the only one with good customer service I've found in my area) and had one of the service managers plug in a laptop computer to see exactly what items were programmable. I wanted to program the key FOB to open all the doors with a single click but, alas, such was not meant to be. I had several items I wanted to change: key FOB door unlock, chime(s) volume levels, and interior light time delay when unlocking doors. According to the service manager the only programmable items on the 2012 Tacoma (mine at least) are the seat belt chimes (on/off) and the speedometer depictions (american-mph or metric-kph). That was it. According to the service manager. Now I wait for one of the intellectuals on this site to explain to a novice how to adjust the items I would like to change. This is my first Toyota truck (previously owned an FJC) and so far am very pleased. Just wish (and think) many items that aren't programmable should be programmable.
Also struggling between an ICON 3" lift and an RCD 4.5" lift. Such a lift would be used 65% onroad and 35% offroad. Would also like to upgrade to either 285/70x17 or 33.11.5-17 tires. Currently running 265/70-16 tires, BFG's and I think these OEM tires are junk.
Thanks for any ideas.