2008 Toyota 4Runner Owners Manual - Page 228

07 12.25 Downhill assist control system (four −wheel drive models) The downhill assist control system is a system that assists the deceleration of the engine brake when you drive down a steep hill. When you are driving down a hill with the four −wheel drive control switch knob (full −time four −wheel drive models) or multi −mode control switch knob (multi −mode four −wheel drive models) in the "L4" position, push the "DAC" switch to limit the vehicle's acceleration. If the vehicle is traveling at a speed of 25 km/h (15 mph) or less, you can descend at a constant speed. TO ACTIVATE THE DOWNHILL ASSIST CONTROL SYSTEM 1. Full −time four −wheel drive models- Turn the four −wheel drive control switch knob to the "L4" position. The system will not operate if the four − wheel drive control switch knob is in the "H4" position. Multi −mode four −wheel drive models-Turn the multi −mode control switch knob to the "L4" position. The system will not operate if the multi − mode control switch knob is in the "H4" position. 2. In order to make full use of the engine brake, putting the transmission in "L" or "2" is recommended. The system will operate even if the transmission selector lever is in "D", "4", "3" or "N". However, when it is in "L" or "2" the engine brake can also be utilized enabling the system to operate more effectively. CY16020 CAUTION Do not rely excessively on the downhill assist control system. It may not be able to maintain a low speed over road surfaces or off −road surfaces on which sliding can easily occur, such as extremely steep slopes or icy or muddy roads. 3. Push the "DAC" switch to turn the system on. The downhill assist control system indicator light on the instrument panel will come on. Full −time four −wheel drive models-If the downhill assist control system indicator light flashes, the selector lever may be in "N" or the four −wheel drive control switch knob may be in the "H4" position. If the indicator light does not come on when the switch is pushed, contact your Toyota dealer. 186