2017 Off Road rear locker

As David K, says

For 3rd gens (TRD OR or PRO) only:
A-TRAC is a latching push button switch for the Manuals, and need only be pushed once and will be active from then on when entering 4Lo automatically.
MTS is NOT a latching push button switch for autos, and must be pushed after entering 4Lo every time.

 

Thanks for that Ted. Let's add that that is for 3rd Gens, too. I am an automatic 2nd Gen, so "pre-MTS". (Yes, the thread title is 2017..., so my input is dated data)

 

Yep
Adding.
Narrow thinking sometimes...
Thanks

 

Let me modify one part of my comment since I do not live in snow and my four wheeling is primarily, mountains, deserts, and beaches: Spinning tires have one value, and that is to clean out the tires of compacted snow or mud, so use the open differential choice if that is needed.