Lexus IS250 2009 Service Manual page 536

If the electronic key does not operate
properly
Unlocking and locking the doors
n
Starting the engine
n
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.
IS_U (L/O_0808)
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
1
Locks
2
Depress the brake pedal (for automatic trans-
mission) or clutch pedal (for manual transmis-
sion).
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 (for automatic transmission) or
clutch pedal (for manual transmission)
depressed.
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