I'm considering getting the IID tool for my 2011 LR4. It has 176k miles and has been serviced regularly for its 9 year existence. I have one major issue with the truck and is the only one I can't figure out (besides heated steering wheel going out indefinitely). The RPMs fluctuate even when keeping a constant speed (cruising). The truck also has a hard downshift when going to zero as if it holds around 25-30mph before shifting quickly to 10 mpg. It's so hard it's as if I was rear ended. Can the IID tool fix this? I read it can readjust the transmission so that it re-adapts to my driving habits, but would it potentially help the transmission stop this shifting and fluctuating rpm issue? I need to get my transmission fluid replaced (perhaps that's the issue). Also, I floored it to blow by some guy the other day and the truck held at 3000 rpms for at least 1.5 seconds even though I let off the gas. Another weird transmission thing. P.S. if anyone has fixed their heated steering wheel just pooping out on them via the IID tool let me know. Thanks!