Lexus LS460 - A Warning Buzzer Sounds When Leaving the Vehicle; A Warning Light Turns on or a Warning Message Is Displayed; An Alarm Is Activated and the Horn Sounds

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What to do if... (Troubleshooting)
LS460_EE (OM50D49E)
 Did anyone inside the vehicle open a door or anything
move inside the vehicle* during setting the alarm?
The sensor detects them and the alarm sounds. (P. 88)
*: If the vehicle is equipped with intrusion sensor and tilt sensor.
Do one of the following to stop the alarm:
• Unlock the doors or open the trunk using the entry function or
wireless remote control.
• Start the engine.
 Is the electronic key left inside the vehicle or the moon
roof opened?
Check the message on the multi-information display.
(P. 833)
 When a warning light turns on or a warning message is
displayed, refer to P. 824, 833.
An alarm is activated and the horn sounds (if equipped)
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed