Enabling a Toyota Security System on Base Model Cars

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Here's how to enable / activate a Toyota or Lexus Theft Security system using Toyota Techstream Software.

Base model cars, such as the Toyota Sienna CE in this video, do not come with an alarm. The ECU that controls the body functions, such as windows, locks, interior illumination and security are the same across all trims. Toyota simply disabled the alarm in the software!

To re-enable the alarm, you need a mini VCI cable and Toyota Techstream software to connect it to your PC. This software is what Toyota/Lexus mechanics use to diagnose problems and change settings on your car. For more information and a demo on the features on this software, see this video:



Once the software is installed and connected to your vehicle, simply navigate over to the options menu and enable DOP Security. Then enable all the settings such as the glass break sensor, horn alarm, passive mode and armed state indicator if so equipped.

Finally when all changes are saved, you can test the alarm by locking all the doors and waiting 30 seconds for the system to activate. From inside the vehicle, open the thumb-turn lock and the alarm should activate. Insert the key in the ignition and turn it or press unlock on your remote to deactivate the alarm.

Dealerships will charge hundreds to "install" an alarm, when all they have to do is activate it in the system.