It would also be nice to not have to press the tow haul button every time u get out of the truck and back in and u have a trailer hooked up
Same with Exhaust brake on Diesels. Park-Assist "off" is latching (stays in either state till you change it). I think TractionControl is too.
Years ago, on my 1998 Dakota, there was a post on some forums about installing a relay to turn O/D off at start up. I don't recall the specifics, but basically it tied into the wires to trick the PCM/ECU that the button had been pushed right after engine start.
It may not be possible to do that to these newer trucks because of the computer control... but if that's true, it's probably easier to hack and modify the software inside it.
Staying on could potentially be a danger. What happens when you accidentally hit "resume".
Besides, how hard is it really to press the on/off button? LOL First world problems.
I cannot see how that would be an issue. My wife's Honda Accord has a mechanical on/off button for cruise. IN is "ON".... and is the position it stays in, unless the guys at the car wash push it when wiping down the interior.