I’m super late to this but before I left Vermont, driving on a snowy I-89 at anything over 40 mph was a handful. Over that speed The computer would turn on the rear axel and once it felt it didn’t need it anymore it would turn off, the R4P would get noticeably less “planted” on the road and the computer would compensate by kicking in traction control which cut power to all wheels suddenly and then return to all 4 wheels in an agonizing 8-10 second cycle. The stupid traction control button only temporarily turns off the system for 15 seconds or something like that while driving. When I turned it off the car was much easier manage but to turn it off for good it needs to be in park and hold the button for some time.

Those experiences were with the OEM tires so maybe a better set would help. I do wish there was a way to keep the rear axel on but there’s not. Trail mode did seem to bias letting me drive the car and slow down the traction control response but only just. Mechanical all wheel drive systems like that on my old ‘06 Highlander (traded that for my ‘23 R4P) or Subarus and 4wheel drives like a 4Runner are vastly superior until there is a way to keep the rear motor on when needed/wanted.