Downhill Assist Control System - Lexus GX470 2004 Owner's Manual

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STARTING AND DRIVING

DOWNHILL ASSIST CONTROL

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.

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.

Turning on the system

1. Shift the four-wheel drive control lever to the "L"

The system will not operate if the four-wheel drive control lever

is in the "H" 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.

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, the

transmission selector lever may be in "N" or four-wheel drive

control lever may be in the "H" position.