Radar sensor
The radar sensor detects vehicles or other obstacles on or near the road ahead and determines whether a collision is imminent based on the position, speed, and heading of the obstacles.

See also:
Light bulbs
You may replace the following bulbs yourself. The difficulty level of
replacement varies depending on the bulb. If necessary bulb
replacement seems difficult to perform, contact your Lexus dealer.
...
Adjusting sound quality and volume balance
- Changing sound quality modes
Press the “TUNE/SEL” knob.
Pressing the button changes sound modes in the following order:
“BAS” → “MID” → “TRE” → “FAD” & ...
Operating a USB memory
Connecting a USB memory enables you to enjoy music from the vehicle speakers.
- Connecting a USB memory
Slide the auxiliary box lid.
Open the cover and connect a USB memory.
Turn on the ...
