flickering headlights

Why Do My Headlights Flicker When Braking?

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Why Do My Headlights Flicker When Braking? Some vehicles may exhibit the headlights flickering when the vehicle is decelerating (by applying the brakes) with the headlights on. This concern is caused by inadequate alternator output (controlled by the PCM) when the battery is under heavy load. What causes headlights to dim while driving? Most DIYers

What Does It Mean When Your Dash Lights Flicker?

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What Does It Mean When Your Dash Lights Flicker? Most likely, flickering dash lights are due to problems with the alternator. In addition to recharging the battery, the alternator is in control of running the electrical components in your vehicle. If the alternator is failing, it may not be able to steadily supply enough current