Originally Posted by Jefenator
My rig has the "automatic limited-slip differential".
According to the official blurb, it works by "selectively applying brakes to the wheel that slips and sending engine power to the wheel with grip".
I haven't tested this, yet. Can anyone tell me how well it actually works? If I have one wheel on ice or deep gravel & the other on pavement, can I power myself uphill?
The best way for you to know how well it works is to go some place in the dirt or snow and use it.
The standard drive mode is with TRAC on, in 2WD. It is a 'lite' limited slip and does regulate engine output along with braking a spinning tire.
BUT, do a quick push of the VSC OFF switch
and that turns on 'AUTO LSD' which is a stronger 2WD limited slip than is TRAC as there is no engine regulation! This is like Posi Traction for your rear end for power take offs. It helps when one tire is off the road in slush.
If tire spinning is desired, you can de-activate the limited slip system and just have open differential(s) by hold down the VSC OFF switch, while STOPPED for 3-5 seconds.
If you have 4WD, the TRAC in High Range 4WD is actually like Auto LSD as there isn't any engine regulation. Toyota could have used better names or called TRAC in 4WD something different or AUTO LSD, maybe?