Lexus RX Owners Manual (RX450h) > Before driving: Trailer towing (vehicles
without towing
package)
Lexus does not recommend towing a trailer with your vehicle. Lexus also
does
not recommend the installation of a tow hitch or the use of a tow hitch carrier
for a wheelchair, scooter, bicycle, etc. Your vehicle is not designed for
trailer
towing or for the use of tow hitch mounted carriers.
...
Lexus RX Owners Manual (RX450h) > Using the driving support
systems: PCS
(Pre-Collision System)
The pre-collision system uses a radar sensor and camera sensor to
detect
vehicles and pedestrians in front of your vehicle. When the system determines
that the possibility of a frontal collision with a vehicle or pedestrian is
high, a
warning operates to urge the driver to take evasive action ...