Reasons why high beams work but low beams don't service questions at Byers Airport Subaru

Learn why your Subaru's low beams won't work

At night, the headlights on your vehicle are responsible for showing what's ahead. During the day, your headlights can be important for your safety by making your vehicle easier for other drivers to see. One of the more common problems we see with headlights is that the normal low beams stop working, but the high beams continue to function just fine. Below, we discuss five reasons why this may happen with the most common reason in the number one position.

When it comes to solving any headlight problems your Subaru may be having, we're here to help with informational articles like this one and experts on hand to answer any questions. The Byers family has been in the transportation business for over 120 years, and we want to make sure that you're confident in the service we provide. If you have any questions, please give us a call or stop by our convenient location by the airport at 401 North Hamilton Road, Columbus, OH 43213.

Schedule service for high or low beam headlights repairs in Columbus, OH

5. The Headlight Socket is Corroded

On many vehicles, the headlight is a bulb that's plugged into a socket where electrical connections are made. If these connections are loose, there is a bad ground in the circuit, or moisture has gotten in, the headlight socket could become corroded. This may first lead to a headlight that goes in and out or it may go out once and not come back.


4. Headlight Wiring is Compromised

Automotive wiring is designed to be durable, but it can also be an enticing chew toy for rodents. Perhaps the previous owner of the vehicle felt able to rewire the headlights and they haven't worked right since. If you suspect that the wiring is why you're having trouble with your headlights, we recommend having it checked out by a certified specialist at your local authorized dealer.

Ask our service technicians about headlight repairs at Byers Airport Subaru

3. Headlight Switch is Broken

We don't typically see this problem with Subaru models, but a broken headlight switch can be problematic. It may get stuck in position for the high beams or the switch could wear out and simply not turn the headlights on at all. If the switch is bad, replacing it with a new OEM headlight switch is typically the best answer.


2. Headlight Fuse or Relay is Bad

Like all electrical systems, the headlights in your vehicle have a fuse in the circuit to prevent too much electricity from reaching the bulb. There will also be a headlight relay that switches power from the low beams to the high beams. If the fuse goes bad, you likely won't have any headlights at all. However, if the relay goes bad, you won't be able to switch between high and low beams.

1. Time for New Headlights

Many vehicles on the road today have halogen headlight bulbs with two filaments. One is for the normal low beam headlights and the other for the high beams. Other models might have two separate headlight bulbs. Since the low beams are used the most, they tend to burn our much sooner than the high beams. If your low beams stop working but the high beams still turn on, there's a good chance that simply replacing the headlight bulbs with new OEM headlights will solve the problem.

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  1. Byers Airport Subaru

    401 North Hamilton Road
    Columbus, OH 43213

    • Sales: (877) 265-2083

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Map DataMap data ©2019 Google
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Byers Airport Subaru

401 N. Hamilton Road
Directions Columbus, OH 43213

  • Sales: 1-844-851-8814
  • Service: 1-844-349-8406
  • Parts: 1-844-231-6218