Whether you’ve been driving your Honda for years or you just drove off the Wheaton Honda lot in a new model, you will occasionally have questions about your car. Maybe it makes a noise your old car didn’t when you start it in cold weather. Or perhaps your brakes make a subtle clicking noise when they are wet. In many cases, these questions can be answered quite simply by your Honda dealer, but here at Wheaton Honda, we try to answer your questions before you even ask them. This time, we’re going to address a question we’ve heard from Honda owners in the past: Why do my Honda headlights dim when I stop?
Don’t worry, there is nothing wrong with your battery, headlights, or electrical systems. In fact, the momentary dimming of your lights is a sign of your Honda doing everything it can to conserve fuel.
When your headlights dim briefly at a red light or stop sign, it’s caused by a slight variation in the electrical system created by the onboard computer, which constantly monitors the electrical usage of your car. When you are stopped, the computer tells the electrical system that it does not need to output as much electricity. That reduction of electrical demand lessens the load on the engine, which helps increase efficiency and reduce vehicle vibration.
As the vehicle’s electricity demands change, your headlights may quickly dim then return to their normal brightness in response to components turning on and off. Certainly, it’s not cause for concern.
If you think you are having an issue with your headlights, however; feel free to contact Wheaton Honda and we can do an inspection to make sure your electrical systems and headlights are all working properly.