1. By using the key fob: Press and hold the lock button on your key fob for at least three seconds. The horn will honk and the lights will flash to indicate the alarm is armed.
2. By entering the vehicle without the key fob: If someone attempts to enter your vehicle without using the key fob, the alarm will sound after 30 seconds. The horn will honk and the lights will flash to indicate the alarm is active.
3. By tampering with the vehicle: If someone attempts to open the hood, trunk, or doors of your vehicle without the key fob, the alarm will sound. The horn will honk and the lights will flash to indicate the alarm is active.
4. By using the motion sensor: The Tundra has a motion sensor that can be activated by movement inside the vehicle. If someone enters your vehicle without the key fob, the motion sensor will activate the alarm after 30 seconds. The horn will honk and the lights will flash to indicate the alarm is active.