2005 Toyota Tacoma Owners Manual - Page 180

05 02.25 Downhill assist control system 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 front drive control switch knob 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. Turn the front drive control switch knob to the "L4" position. The system does not operate when the front drive control switch knob is in the "H2" or "H4" position, or the rear differential is locked. 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. LS17016 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. If the downhill assist control system indicator light flashes, one of the following may be the cause: D The selector lever is in the "N" position. D The front drive control switch knob is in the "H2" or "H4" position. D The rear differential is locked. If the indicator light does not come on when the switch is pushed, contact your Toyota dealer. 180 2005 TACOMA from Mar. '05 Prod. (OM35862U)