Lexus LFA Owner's Manual page 102

2-1. Driving procedures
If the engine does not start
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Repeat the procedure again. If the engine does not start after a few tries, the
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"ENGINE START" switch may be malfunctioning. Have the vehicle inspected
by your Lexus dealer.
Check to make sure that the brake pedal is firmly depressed and that "N" is dis-
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played in the gear indicator. (If the brake pedal is not depressed or "N" is not
displayed, the engine will not start.)
The engine immobilizer system may not have been deactivated. (P. 53)
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In order to protect the engine, the engine may not start when the engine coolant
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temperature or the engine oil temperature is below -13F (-25C). In that case,
a buzzer will sound and "Temp low Engine cannot be started" will be shown on
the meter. (P. 327)
When the steering lock cannot be released
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Key reminder function
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A buzzer sounds if the driver' s door is opened while the ignition switch is in the
"LOCK" or "ACC" position to remind you to remove the key.
After reconnecting the battery
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If the gear indicator is not displayed when an attempt is made to start the engine,
the engine is not yet ready to start. Depress the brake pedal for several seconds and
wait for the gear indicator to appear.
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When starting the engine, the ignition switch
may seem stuck in the "LOCK" position. To
free it, turn the key while turning the steering
wheel slightly left and right.