2008 Toyota 4Runner Owners Manual - Page 213

07 12.25 Four−wheel drive system (multi−mode four−wheel drive models)- (a) Multi−mode control If the "4LO" (low speed four −wheel drive) indicator light continues to blink and the buzzer sounds when you operate the four − wheel drive control switch knob to the "H4" or "L4" position, drive forward or backward in a short distance, then stop the vehicle completely, shift the automatic transmission selector lever securely into "N" and operate the switch knob again. If the indicator continues to blink even if doing so, contact your Toyota dealer as soon as possible. There may be a trouble in the four −wheel drive system. CY16061 CAUTION Never operate the four −wheel drive control switch knob if the wheels are slipping. Stop the slipping or spinning before operating. CY16062 Center differential lock switch Use the multi −mode control switch knob and center differential lock switch to select the transfer and center differential modes. The "H4" and "L4" positions of the multi − mode control switch knob provide either lock or unlock mode of the center differential. Multi−mode control switch knob 171