What Causes the Highlander's Anti-Theft Alarm to Sound Automatically?

[BraxtonAnn]

Highlander's anti-theft alarm sounding automatically is due to wiring faults or excessive sensitivity. The solutions for wiring faults and excessive sensitivity are as follows: Solutions for wiring faults: Timely inspection, repair, or replacement is necessary. However, whether it's checking the wiring or replacing the alarm, it's best left to professionals, as this is beyond the scope of DIY solutions. Additionally, the system integrates many wiring distributions. If installed unprofessionally or if the wiring is reversed, the worst-case scenario could render the anti-theft device unusable or even burn out the vehicle's components. Solutions for excessive sensitivity: Locate the main unit of the anti-theft alarm, typically found under the steering wheel or behind the A-pillar trim panel. Then, slightly adjust the sensitivity adjustment knob. However, avoid setting it too low, as this would significantly reduce the vehicle's anti-theft effectiveness.