Lexus GS450h2016 Service Manual page 431

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Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displayed even if vehicle-to-vehi-
cle 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
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 operates and the
display turns off even though a door or the trunk is not fully closed.
Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an audio sound.
GS450h_OM_OM30E99U_(U)
7-2. Steps to take in an emergency
431
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