2008 Toyota 4Runner Owners Manual - Page 222

07 12.25 "AUTO LSD" system (two −wheel drive and muti −mode four −wheel drive models) NOTICE Do not use the "AUTO LSD" system in conditions other than the above. A much greater steering effort and more careful cornering control will be required. CY16070 CY16075 The "AUTO LSD" system aids traction by using the traction control system to control engine performance and braking when one of the rear wheels begins to spin. This system is used only when wheel spinning occurs in a ditch or on a rough surface. This system is effective in case one of the rear wheels is spinning. To turn on the system, briefly push the "VSC OFF" switch. At this time, the "AUTO LSD" indicator and slip indicator lights will come on. To turn off the system, briefly push the "VSC OFF" switch again and the "AUTO LSD" and slip indicator lights will go off. If the engine is turned off while the "AUTO LSD" and slip indicator lights are on and then restarted, the indicator lights will turn off automatically. 180