The only ones that came with a factory TRAC OFF switch were the 08-09 model years.
VSC will automatically disengage when you lock the center diff, but make sure not to do that on high traction surfaces.
If you want to turn off VSC/TRAC for a little fun, just unplug the brake fluid level sensor at the front of the brake reservoir on the master cylinder. That'll also turn off ABS though, so be mindful. Also, you have to cycle the key after you plug it back in to get things behaving properly again.
There is also a mod
here to turn off the VSC via a switch.
Hope that helps!