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Will the Dash Cam Record a Collision After the Car is Turned Off?

2 Answers

VanJustin

07/29/25 8:41am

No, the dash cam will not record a collision after the car is turned off. The power source of the dash cam is connected to the vehicle's ignition system. When the car is turned off, the ignition system loses power, causing the connected dash cam to also shut down. However, it can be manually activated. Below are some additional details: 1. Considerations for installing a dash cam: The camera should have a wide shooting angle to comprehensively record the surroundings of the vehicle. However, the lens angle should not be too extreme to avoid distorted footage. The dash cam should have good video clarity and night recording capabilities. High definition is determined by the main control chip of the dash cam, so it's important to check which image processing solution the main control chip uses. The dash cam should have sufficient storage space to enable long-duration effective recording. 2. Qualification standards: Choose a dash cam with good concealment to reduce the risk of theft through window smashing. In addition to buses, coaches, and school buses being required to install dash cams, logistics and transportation companies have also started mandating their installation, requiring the products to have 3C certification.

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JaxsonDella

08/11/25 6:15pm

Nowadays, more people are driving, and this issue is quite common. Can a dash cam record after the car is turned off? It all depends on the power source. If you're using a regular dash cam plugged into the cigarette lighter, it automatically powers off when the car is turned off, so it won't record anything. Unless you've installed a dedicated OBD interface or hardwired it to a constant power line—the one that always has electricity. Or if the dash cam has a built-in battery, but those usually don't last long, draining in just a few minutes, unless it's a newer model with parking surveillance, which uses a low-power mode to monitor and only starts recording when significant vibration is detected. I recommend checking the wiring during installation, preferably at a professional shop, to avoid finding out too late that you have no evidence if your parked car gets scratched, resulting in a pointless loss.

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