Lexus GS450h - Open Door Warning Message; The LKA (Lane-Keeping Assist) Lane Departure Warning Function (if Equipped); Warning Message in Radar Cruise Mode (if Equipped)

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7-2. Steps to take in an emergency
GS450h_OM_OM30E26U_(U)
7
When trouble arises
■ Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displayed even if vehicle-to-
vehicle distance decreases:
● When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle
● When the vehicle ahead is traveling at a very low speed
● Immediately after cruise control speed is set
● At the instant the accelerator pedal is depressed
■ The LKA (Lane-Keeping Assist) lane departure warning function (if equipped)
In the following cases, the warning message will not be displayed even if a lane line is
crossed.
● When the vehicle speed deviates from the operating range of the LKA system
functions
● When the lane lines cannot be recognized
● When the steering wheel is turned as far as necessary to cause the vehicle to
change lanes
■ Open door warning message
The open door warning message continues to display until a door or the trunk is fully
closed, even if the power switch is turned off. However, approximately 20 minutes
after a door or the trunk is not fully closed, the 12-volt battery-saving function oper-
ates and the display turns off even though a door or the trunk is not fully closed.