How Long Does a Headlight Bulb Last?

With all of the different relays that are on a car, it can feel like a full-time job keeping up with them all. One of the most important safety features that a car has is properly working headlights. In some cars, the headlights fold down and are hidden from view then the car is turned off. In order for this type of system to work, the headlight closure relay will have to work properly. The relay shuts off the power to the headlight motor when the car is cut off, which then allows the lights to fold down. Every time the headlights of a car are used, the closure relay will have to work to maintain the flow of power that is needed.

The relays and switches on a car are designed to last the lifespan of the vehicle, but in some instances this is not the case. There are a variety of different things that can cause a relay to become unusable. Generally, the heat and the moisture that is produced by the engine begins to cause corrosion or rusting issues. Having rust or corrosion on the terminals of the relay can prohibit the connection that it is able to make.

If the relay is not getting a good connection, then it will be nearly impossible for the headlight closures to operate properly. In some cases, the reason why a relay will not work is due to internal issues with the wiring. Regardless of what is causing the issues with the headlight closure relay, getting it fixed in a hurry should be a top concern. Here are some of the warning signs that you may notice when it is time to replace this relay:

  • The doors on the headlights will not close when the power is shut off
  • The closure relay is only doing its job on occasion
  • The headlight doors will not open at all

Addressing this issue in a hurry will make it easy for you to maintain the functionality of your headlights. You don't want to be stuck with broken headlights. Letting professionals handle your headlight bulb replacement is your best course of action due to the large room for error that exists when trying to do it on your own.


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Kevin

6 years of experience
92 reviews
Kevin
6 years of experience
Honda Accord L4-2.4L - Headlight Bulb Replacement (Driver Side Low Beam, Passenger Side Low Beam, Driver Side High Beam, Passenger Side High Beam) - Orlando, Florida
Kevin was more than a pleasure to work with. Why more? He did kind of what I do in business, where you set reasonable expectations, and exceed them. He put a budget, then went under, and told me a time it would take, and completed everything in less time. Thank you Kevin for the work, and will be reaching out in the next two weeks for work on one of my other vehicles!
Chrysler 300 - Headlight Bulb Replacement (Driver Side Low Beam) - Orlando, Florida
I am so glad that I took a chance on yourmechanic.com for my headlight replacement. Kevin was awesome. He was prompt, he was polite, and he was efficient. I highly recommend yourmechanic.com

Ben

41 years of experience
1410 reviews
Ben
41 years of experience
Cadillac SRX V6-3.0L - Headlight Bulb Replacement (Driver Side Low Beam, Passenger Side Low Beam) - Houston, Texas
Ben showed up on time. Excellent customer service. I’m very satisfied and will use YourMechanic again. Thanks

Dan

39 years of experience
975 reviews
Dan
39 years of experience
Subaru Tribeca H6-3.6L - Headlight Bulb Replacement (Passenger Side Low Beam) - Gainesville, Georgia
Dan is very knowledgeable and most important, he's honest. I'm really comfortable letting him work on my vehicles.

Patrick

33 years of experience
1408 reviews
Patrick
33 years of experience
Subaru Forester H4-2.5L - Headlight Bulb Replacement (Passenger Side Low Beam) - Austin, Texas
Patrick was great, he kept me up to date on any changes and I am very satisfied with the experience.

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