Lexus LS460 Owner's Manual page 520

520
7-2. Steps to take in an emergency
Warning message in radar cruise mode (if equipped)
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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
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vehicle ahead is traveling more quickly than your vehicle
When the vehicle ahead is traveling at a very low speed
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Immediately after cruise control speed is set
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At the instant the accelerator pedal is depressed
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The LKA (Lane-Keeping Assist) lane departure warning function (if equipped)
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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
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functions
When the lane lines cannot be recognized
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When the steering wheel is turned as far as necessary to cause the vehicle to
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change lanes
System warning lights
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The master warning light does not come on or flash in the following cases. Instead, a
separate system warning light will come on or flash along with the message shown
on the multi-information display.
Malfunction of the brake system
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The brake system warning light (red indicator) comes on. (→P. 508)
Malfunction of the electronically controlled brake system or electric parking brake
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The brake system warning light (yellow indicator) comes on. (→P. 510)
Malfunction of the ABS
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The ABS warning light comes on. (→P. 509)
Malfunction of the charging system
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The charging system warning light comes on. (→P. 509)
Indicates that a door or the trunk is not fully closed
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The open door warning light comes on. (→P. 511)
High engine coolant temperature
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The needle of the engine coolant temperature gauge enters the red zone.
(→P. 546)
LS460/LS460L_U (OM50G04U)