Why Are My Vehicle's Dashlights Flickering?

why are my vehicle's dashlights flickering?

Grubbs Nissan can help you learn why your vehicle's dashlights are flickering.

If you observe your car lights flickering while driving, it's probably going to be from a battery that is failing. If the battery is normal, there are other trouble areas that may be responsible for the issue. No matter the cause, you should have the problem diagnosed and repaired as quickly as possible. If your lights aren't working correctly, you might become a hazard to yourself and other drivers. The three areas dimming lights can occur are:

  • Headlights
  • Lights on the Dashboard
  • Interior overhead lights
Since the battery is the most convenient part to diagnose, this is where a mechanic will look first. If you think the battery is on its way out, bring it to us so we can properly diagnose the issue and get the right OEM battery for your car. While there are cases caused due to a bad battery, there are other components to consider.

Headlight switch going bad

Headlight switch going bad

A failing light switch, whether it's the headlight switch or an interior light dimmer, also needs to be considered when you have flickering car lights. In some rare situations, replacing a worn-out switch may solve the flickering light issue, especially in older vehicles or vehicles with excessive mileage. If your vehicle doesn't fall into either category, there's a possibility it could be a sign of a more serious problem with the car's electrical system. Diagnosing these problems can feel overwhelming, so if you're experiencing any problems with the lights flickering on your vehicle, bring it to us immediately. Our trained technicians will do a thorough diagnosis and give you options for fixing your flickering car lights.

Alternator

Alternator

Lights flickering on the dash can also be signs your alternator is dying. Consider this, you use battery power to start your car, but to keep your car running, the power comes from the alternator. If you drive an older car with halogen lights, you may notice them get dimmer with a dying alternator. For newer cars equipped with HID or LED lights, they may flicker on and off or stop working altogether.

Bad bulbs or fuses

Bad bulbs or fuses

If the vehicle battery isn't the reason for your flickering car lights, you might be looking at a failing bulb or a bad fuse. Dead bulbs are an easy and quick fix and present an opportunity to upgrade to new LED bulbs. If your car has a bad fuse, you might be dealing with a more significant problem as fuses are a safety feature on your vehicle. A fuse fails when there is too much electrical current runs through it. For example, if your anti-lock brakes are installed with a 10amp fuse, and the fuse receives more than 10amps of electrical current, the fuse will fail. In this situation, your anti-lock brakes would fail due to the blown fuse. If you have a fuse that continues to fail, bring your vehicle in and we'll thoroughly diagnose the bigger, potentially more serious problem.

Schedule Service for Nissan Near Dallas-Fort Worth

Grubbs Nissan is one of the most trusted destinations for all your auto service needs near Dallas-Fort Worth. Our friendly staff is ready to get you and your vehicle back on the road safely, no matter its make or model. Schedule your next auto service with us in person or online.