key battery Lexus IS F 2010 Audio/video System / LEXUS 2010 IS F QUICK GUIDE OWNERS MANUAL (OM53791U)

What to do if ...
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If the electronic key does not operate
properly
■Unlocking and locking the doors
To unlock or lock the vehicle, use the mechanical
key to remove the lock cover on the driver's door
handle. The mechanical key is stored inside the
electronic key.
Unlocks
Locks
■Starting the engine
Depress the brake pedal.
Touch the Lexus emblem side of the electronic
key to the “ENGINE START STOP” switch.
Press the “ENGINE START STOP” switch
within 10 seconds of the buzzer, keeping the
brake pedal depressed.
To change “ENGINE START STOP” switch
modes, release the brake pedal and press the
“ENGINE START STOP” switch within 10 sec-
onds of the buzzer.
1
2
If the electronic key battery becomes depleted, replace it with a new battery. For instruc-
tions on replacing the battery, refer to the Owner's Manual. If you need further assistance,
contact your Lexus dealer.