Lexus LS460 2011 Owner's Manual page 274

2-4. Using other driving systems

Camera sensor
To ensure that the system functions correctly, keep the windshield clean at
all times.

Warning lights, messages and buzzers for adaptive cruise control with full-
speed range
Warning lights, messages and buzzers are used to indicate a system mal-
function or to inform the driver of the need for caution while driving. (P.
687, 696)
258
LS460_EE