Lexus IS300H 2017 Manual page 603

Warning messages
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The warning message illustrations used are intended as examples, and may differ from
the image that is actually displayed on the multi-information display.
Warning message in radar cruise mode (if equipped)
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In the following situations, the warning message may not be displayed even if vehicle-to-
vehicle distance decreases:
When the speed of the preceding vehicle matches or exceeds your vehicle speed
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When the preceding vehicle is traveling at an extremely slow speed
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Immediately after the cruise control speed was set
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At the instant the accelerator pedal is depressed
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The LDA (Lane Departure Alert with steering control) lane departure warning func-
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tion (if equipped)
In the following situations, 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 LDA system func-
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tions (P. 284)
When the lane lines cannot be recognized (P. 286)
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Resetting the message indicating maintenance is required
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Make sure to reset the oil change system. (P. 518)
Warning buzzer
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P. 579
8-2. Steps to take in an emergency
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