2006 Lexus GS 300 Owners Manual - Page 1075

STARTING AND DRIVING HILL−START ASSIST CONTROL SYSTEM The hill−start assist control system assists you in starting to move up a steep or slippery hill. When you start to move up the hill slope, the system helps to reduce the vehicle's rolling backward distance while you move your foot from the brake pedal to the accelerator pedal. The hill−start assist control system will operate for 5 seconds maximally when all of the following conditions apply. D When the selector lever is in "D" or "S" position D When the brake pedal is not depressed The system is designed to operate when the vehicle is starting on an uphill slope; therefore, if the selector lever is in "P" or "N", it will not operate. It will not operate either if the vehicle starts to move in reverse on a slope with the selector lever in "R". When the hill−start assist control system is operating, you may hear a sound. This indicates the hill−start assist control is operating normally and does not indicate a malfunction. CAUTION D Do not rely excessively on the hill−start assist control system. The vehicle may not be able to start smoothly on road surfaces or off−road surfaces such as extremely steep slopes or icy roads, on which sliding can occur very easily. D Do not use the hill−start assist control system to stop the vehicle. This system is not designed for stopping the vehicle on an uphill slope. G31038 "Slip indicator light When the hill−start assist control system is operating, the slip indicator light flashes. At the same time, the stop lights and high mounted stoplight are lit. 429