What Causes the Dash Cam Screen Not to Light Up?
2 Answers
The reasons for a dash cam screen not lighting up include insufficient battery power, disconnected cables, damaged camera, or poor line contact. The dash cam serves the following 4 purposes: 1. Protect drivers' legal rights and provide valid evidence: Safeguard drivers' legitimate interests by offering crucial evidence in cases involving pedestrians crossing roads recklessly or bicycle collisions. 2. Playback recorded footage for clear liability assessment: Enables traffic police to handle accidents swiftly and accurately through video replay. This facilitates quick scene clearance to restore traffic flow while preserving valid evidence, ensuring safe and smooth road conditions. 3. Significantly reduce accident rates: Vehicles involved in incidents will be captured by other vehicles' dash cams, dramatically decreasing hit-and-run cases. 4. Documentation function: Records timestamps, speed, and location data in the footage.
I often tinker with car electronics, and a dash cam screen not lighting up is usually due to multiple reasons. Power issues are the primary consideration, such as poor contact in the cigarette lighter socket, a blown fuse, or an aging vehicle battery causing unstable power supply, which can prevent the device from starting properly. Screen malfunctions are also common, such as backlight damage or LCD panel aging from prolonged use. Software-related factors shouldn’t be overlooked either—firmware crashes after updates or accidentally triggering screen-off mode in settings can result in a completely black display. Additionally, severe vibrations during driving or high-temperature environments causing internal wiring shorts are potential hazards. For safety, I recommend first checking the power connection and performing a simple reboot. If that doesn’t work, take it to a professional shop for a comprehensive inspection to avoid delaying travel safety measures.
