Alright, I just purchased a 2018 with all the bells and whistles and unless I'm missing something there is no reason the TSS-P should stop you from lifting the Tacoma.
1st item is it appears you can simply turn off all the sensors if you desire. Turning off the entire system, including active high beams, parking assist and active cruise control requires flipping half a dozen switches and/or settings
If you lift the truck and turn the sensors on the TSS-P may or may not work correctly as I have not played with it enough yet to see exactly what the sensors are reading.
Just for giggles when I get some time I plan to drive the truck up some 10" ramps and see how the additional height effects the sensors.
Anyhoo... that's my 2 cents after owning the truck for 24 hours.
I talked to some guys at the dealership about the TSS-P and mods. They say about the same thing, mods can mess it up but you can turn it off.
My only concern would be if you or someone that didn’t know about it would forget to turn it off. That could make for a dangerous situation, especially at highway speeds.
If I’m not mistaken don’t you have to turn it off every time you restart?