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 ...

If you have questions
If you have questions or concerns about your vehicle’s federal emission warranty coverage, please follow the steps described on pages 9–10. In the case of the Emission Performance Warranty, y ...