A question: what electronics will I lose and have to reset in my 2007 TL if I disconnect the battery when leaving the car unused for a long period, up to two months?

No navigation
Bluetooth?
Homelink?
Antitheft radio?

Anything else?

 

Seat position / side view mirror memory. I think radio presets also are linked to the driver 1 or driver 2 memory like the seat position/ mirror settings.

 

Your radio and navi will be locked out. Make sure you have the codes. You can save them here: www.myacura.com.