2003 Toyota 4Runner Owners Manual - Page 1256

'03 4Runner_U (L/O 0305) The hill-start assist control system will operate for 5 seconds maximally when all of the following conditions apply. Keep in mind the following when driving. D The hill-start assist control system operates for 5 seconds maximally. If both the brake and accelerator pedals remain undepressed for longer than 5 seconds, the buzzer will sound at more frequent intervals and the system will gradually stop operating. D 5-speed automatic transmission- When the transmission is in any of positions "D", "4", "3", "2" or "L" 4-speed automatic transmission- When the transmission is in any of positions "D", "3", "2" or "L" 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 transmission 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 transmission in the "R". D The hill-start assist control system is not designed as a function for stopping the vehicle on a uphill slope. When stopping the vehicle, be sure to depress the brake pedal. If the system is used frequently, the brake actuator temperature may become too high and a buzzer will sound intermittently. In this case, a buzzer will sound intermittently. When the temperature of the brake actuator goes down, the system will begin to operate again. Until it restarts, the traction control system (two-wheel drive models), active traction control system (four- wheel drive models) and downhill assist control system will not operate; however, the conventional brake can be operated. When the hill-start assist control system is operating, the slip indicator light flashes and an alarm sounds intermittently. At the same time, the stop lamps and high mounted stoplight are lit. The slip indicator light comes on for a few seconds when the ignition key is turned to "ON". If the indicator light does not come on when the ignition is turned on, contact your Toyota dealer. 156 2003 4RUNNER from Apr. '03 Prod. (OM35820U)