Lexus RX 450h 2010 Owner's Manual page 232

Radar sensor and grille cover
■
Always keep the sensor and grille cover clean to ensure that the vehicle-to-vehicle
distance control operates properly. (Some obstructions, such as snow, ice and plas-
tic objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is canceled if an obstruction is detected.
Warning lights and messages for dynamic radar cruise control
■
Warning lights and messages are used to indicate a system malfunction or to inform
the driver of the need for caution while driving. (→P. 581)
Approach warning
■
In the following instances, there is a possibility that approach warning will not occur:
When the speed of the vehicle ahead matches or exceeds your vehicle speed
●
When the vehicle ahead is traveling at an extremely slow speed
●
Immediately after the cruise control speed was set
●
At the instant the accelerator is applied
●
2-4. Using other driving systems
Grille cover
Radar sensor
2
231