Why is the dash cam's red light always on?

2 Answers
LondynLee
07/29/25 6:03pm
Generally, dash cams have two indicator lights: a red light and a blue light. The red light indicates that the device is charging or there is a malfunction. Please check if the memory card needs to be formatted. The blue light indicates normal operation. Additionally, if the red light you are referring to is the "REC" indicator on the screen, it means the device is currently recording, which is normal. Below is some relevant information about dash cams: Functions of a dash cam: To protect the legal rights of drivers. In case of accidents involving pedestrians crossing the road, cyclists, or motorcyclists, there is a risk of being extorted. A dash cam can provide drivers with valid evidence. By reviewing the recorded footage, the responsibility for the accident becomes clear, allowing traffic police to handle the incident quickly and accurately. This enables quick clearance of the scene to restore traffic flow while preserving crucial evidence from the incident, contributing to a safer and smoother traffic environment. Components of a dash cam: Different dash cam models may have varying appearances, but they generally consist of the following basic components: Main unit - includes a microprocessor, data storage, real-time clock, display screen, lens module, operation buttons, printer, and data communication interface. If the main unit does not include a display or printer, it should have corresponding data display and print output interfaces. Other components include a speed sensor and data analysis software.
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AlexisLee
08/14/25 10:11am
My dash cam has a red light on, and I always thought it was a normal state, but there could actually be various possible reasons. The red light is usually an indicator of recording, meaning it's working and capturing road conditions, but sometimes if it stays on too long or behaves abnormally, there might be an issue. For example, a full memory card is a common problem—if you drive for a long time and the card fills up with data, it gets stuck continuously recording, and the red light keeps flashing. Or, if the memory card is damaged with bad sectors, the dash cam might not respond and just show a red light until it freezes. Another issue could be unstable power, like insufficient power from the cigarette lighter or a loose connection, causing the dash cam to intermittently display the red light. There’s also the possibility of incorrect software settings, where the loop recording mode is accidentally triggered but not turned off. I’ve encountered the full memory card situation before—simply formatting the card fixed it, so I recommend regularly clearing the card data to avoid it getting full. If you’ve checked everything and the red light is still on, it might be a hardware failure, requiring a replacement. These issues all relate to driving safety, and addressing them promptly ensures reliable video recording.
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