How to Activate the Lock Beep Sound on Highlander?
2 Answers
First, sit inside the car and ensure the gear shift lever is in the P (Park) position. Do not press the brake pedal, and press the one-touch start button twice to activate the vehicle's system. After closing all doors, locate the lock button on the driver's side door and press and hold it for more than 10 seconds. This will activate the Highlander's lock beep function.
I just replaced the battery in my Highlander key and researched how to change the lock/unlock beep sound. It's actually super simple. First, get in the car without starting the engine, insert the key into the ignition or press the start button while braking to illuminate the dashboard. Then find the menu button on the steering wheel, scroll to select "Vehicle Settings" or "Security Settings" - there should definitely be a "Lock/Unlock Beep" option inside. My 2020 model allows direct access to toggle the beep volume or select mute mode from the menu. Remember to save the settings before testing by pressing the lock button on the key fob - you'll immediately hear the sound get louder or disappear. The whole process takes two minutes without tools, but avoid adjusting it too loud at night to prevent disturbing neighbors. If the new settings don't take effect, check the key signal or reboot the menu system. I recommend verifying these settings during routine maintenance to prevent accidental changes affecting the anti-theft function.
