How do you disable the alarm on a 1999 Lexus es300?

To disable the alarm on a 1999 Lexus ES300, you can typically use the key fob to unlock the driver's door, which should deactivate the alarm. If that doesn’t work, insert the key into the ignition and turn it to the "On" position without starting the engine; this can also reset the alarm. If the alarm continues to trigger, disconnecting the car battery for a few minutes may help reset the system. Always consult the owner's manual for specific instructions related to your vehicle.