2006 Lexus GX 470 Owners Manual - Page 402

STARTING AND DRIVING D Vehicle stability control system D Active traction control system D Downhill assist control system D Hill−start assist control When the system is normal and the ignition key is turned to "ON", the warning light will come on and will go off after a few seconds. It is not a malfunction that the warning light may stay on for 60 seconds after the ignition key is turned to the "ON" position. Depressing the brake pedal repeatedly may turn on the light. It is normal if they go out after a few seconds. If the light comes on while driving, the vehicle stability control system does not work. However, as normal braking operates when being applied, there is no problem to continue your driving. In the following cases, contact your Lexus dealer: D The warning light does not come on after the ignition key is turned to "ON". D The warning light remains on after the ignition key is turned to "ON". D The warning light comes on while driving. 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 four−wheel drive control lever in the "L" 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. 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. 377