Lexus IS F 2012 Owner's Manual page 486

5-2. Steps to take in an emergency
Interior
Exterior
buzzer buzzer

Once

Once
*: If the engine does not start when the electronic key is inside the vehicle, the
electronic key battery may be depleted or there may be difficulties receiving the
signal from the key. (P. 36)
486
Warning message Details
Indicates that the
electronic key
does not operate
properly.
Correction
procedure
P. 500