What Causes Inaccurate Time Display on Car Dashboard?
2 Answers
Car dashboard time inaccuracy occurs due to: changes in vehicle usage conditions and status causing the internal circuit crystal oscillator components to be susceptible to interference from physical factors such as voltage fluctuations and spark plug high-voltage magnetic fields, affecting precision. Over time, accumulated effects may lead to certain deviations, which is a normal phenomenon. Additionally, if the vehicle experiences battery drain, power interruption, or ECU reset, the onboard clock may also become inaccurate. The car dashboard is a device that reflects the working status of various vehicle systems, commonly including indicators such as fuel warning light, washer fluid light, electronic throttle light, front/rear fog lights, and warning lights.
I find that inaccurate car dashboard time is a fairly common issue. Common causes include unstable battery voltage, which can cause the clock chip to malfunction, especially during cold starts in winter; also, resetting after battery replacement or power loss requires manually setting the time again; additionally, aging of the clock module may lead to malfunctions. I recommend first checking the battery status—low voltage can easily trigger this problem. Then, try manually adjusting the time to see if it works. If the issue persists, it's necessary to inspect the wiring or visit a professional repair shop. Long-term inaccuracy can affect the timestamps on dashcams, leading to unreliable evidence, so safety concerns should be taken seriously. Paying attention to this during regular maintenance can save a lot of trouble.
