Lexus LFA Owner's Manual page 159

Using the "Lap Timer"
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When the "Lap Timer" function is turned "OFF" or the engine is stopped while a
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lap is being timed, the lap timer will stop and the lap time up to that point will be
recorded.
If the lap time being recorded ends with the same time as the fastest lap, the
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newer time will be saved as the fastest lap time.
If the lap time exceeds "9:59:59. 9 9", the display will return to "0:00:00.00" but
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the total time will be recorded.
If a warning message is displayed when a lap time is being measured, the lap
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time will still continue to be recorded.
Operating the control pad while the warning message is shown returns the dis-
play to the stopwatch but the warning message will continue to appear until the
warning is resolved.
In the normal display, the current measurement time and the latest lap time will
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be displayed.
Changing the temperature measurement unit
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When the "Temp" measurement unit is changed, the air conditioning system tem-
perature setting, air outlets and fan speed characteristics may be changed. This is
normal and does not indicate a malfunction.
If the battery is disconnected or discharges
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"Lap Timer" data and "Clock" settings will be reset.
2-2. Instrument cluster
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