Headlight flickering is not just an irritating issue it can also be hazardous while driving! Understanding the reasons behind flickering headlights and knowing how to address them can help you ensure your safety on the road. Here are some common causes and tips for fixing this problem.
Dying Battery
One of the most frequent causes of headlight flickering is a failing battery. Your headlights depend on the battery to operate correctly.
If the battery is deteriorating, it can cause your headlights to flicker or dim. In such cases, it’s a good idea to get a free battery inspection at your local Tires Plus. If the battery is indeed the cause of the flickering, it may need to be replaced.
On average, a car battery lasts between three and five years. However, several factors can shorten its lifespan, including frequent short trips, extended periods of inactivity, the use of numerous aftermarket electrical accessories, or extreme weather conditions (either very hot or cold climates).
Regardless of whether your battery is the culprit, it’s important not to ignore flickering or dimming headlights.
This issue can be dangerous, as it may make your vehicle less visible to other drivers. Additionally, flickering headlights can indicate a more serious problem with your car’s electrical system.
Failing Alternator
If the alternator begins to fail, the electrical output of your car is affected. This can lead to flickering, dimming, or even non-functional headlights, as the headlights rely on the battery’s power.
When the alternator can no longer charge the battery properly, the car’s electrical system will quickly drain the battery.
If this happens, it’s essential to have your alternator checked by a qualified technician to determine if it needs to be repaired or replaced.
Be aware that if your car’s battery light turns on, it often indicates an issue with the alternator or trouble with charging the battery.
Worn-Out Bulbs or Lamps
Old or damaged headlight bulbs or lamps can also cause flickering. Fortunately, replacing worn-out bulbs or lamps is usually a quick fix.
Visit your local Tires Plus, where one of our technicians can easily replace any faulty bulbs or lamps.
Loose Connection or Fuses
Flickering headlights may also be caused by a loose connection or improperly seated fuse. You might notice this issue more often when driving on rough roads, such as gravel.
Diagnosing loose connections or fuse problems can be difficult, so it’s recommended to bring your vehicle to a Tires Plus location for a thorough inspection of your electrical system.
Bad Wiring
Another potential cause of headlight flickering is physical damage to the wiring or other headlight components. For example, the inside of the connector might melt, causing a poor connection to the bulb.
Alternatively, the wire might detach from the connector, leading to a weak connection.
Fixing this issue may require replacing the damaged components. Since this process involves working with electrical parts, it’s best to seek an inspection from a qualified technician to ensure proper repair.
Faulty Headlamp Switch
In some cases, flickering headlights may result from a malfunction in the car’s electrical and computer systems. A failing headlamp switch might be the source of the problem.
In this case, replacing the faulty switch could solve the issue, or it may require a more in-depth examination of your car’s computer or electrical systems, including the fuses, relays, switches, battery, and alternator.
For reliable solutions to headlight issues, Tires Plus offers expert technicians and services to get the job done correctly. Stop by your nearest Tires Plus for a free battery inspection or replacement today!