2009 Toyota 4Runner Owners Manual - Page 203

2-4. Using other driving systems n Center differential lock switch Use the center differential lock system when the wheels get stuck in a ditch, or when driving on a slippery or bumpy surface. Unlock the center differential after the wheels have been freed, or after moving to a flat, non-slippery surface. To unlock the center differential, push the switch again. 2 When driving Shifting between H4 and L4 n Shifting from H4 to L4 Stop the vehicle completely. Shift the shift lever to N. Push and turn the four-wheel drive control switch fully clockwise. Maintain this condition until the 4LO indicator turns on. n Shifting from L4 to H4 Stop the vehicle completely. Shift the shift lever to N. Turn the four-wheel drive control switch counterclockwise. Maintain this condition until the 4LO indicator turns off. 179