See also:

DAC (Downhill Assist Control system)
The DAC helps to prevent excessive speed on steep downhill slopes. The system will operate when the vehicle is traveling under 15 mph (25 km/h) and the four-wheel drive control switch is in the L4 ...

If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs adjustment or repair. Contact your Lexus dealer as soon as possible.  - Visible symptoms • Fluid leaks under the veh ...

Obtaining Warranty Service
BY GEOGRAPHIC REGION In the United States, U.S. Territories and Canada To obtain warranty service in the United States, U.S. territories or Canada, take your vehicle to an authorized Lexus dealer ...