There are three possible reasons you might be hearing that sound:

• The SD card's speed is too low for recording.
• An alarm for a storage error on the SD card.
• A fatigue driving reminder.

To figure out what's causing the sound, please try these steps:

1. Try using a different SD card that meets the dash cam's requirements.
2. Check the settings on your dash cam to see if the fatigue driving reminder is turned on.

If the sound continues after trying these steps, please send us a photo of the SD card you are using and a short video of the sound. This will help our team analyze the issue and find a solution.