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headlights

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How to Use Car Headlights
Headlights are not only an important safety component on your vehicle, but also a feature that you are legally obligated to use. Failure to use your headlights while driving at night comes...
Symptoms of a Bad or Failing Headlight Switch
If the high beams, daytime running lights, or headlamps are not working consistently, you may need to replace the headlight switch.
How to Install Offroad Lights on Your Vehicle
When you’re pounding through backcountry trails after the sun goes down, you need more than just your headlights to illuminate the road ahead of you. Offroad lights...
How to Replace a Headlight That Has Burned Out
From time to time, some parts on your car may need to be replaced, and that includes the bulbs in the headlights. While you may...
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...
How Long Does a Headlight Closure Relay 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...
How to Clean and Restore Headlights
Even owners who regularly clean and maintain their vehicles are not immune to wear on their headlights. As the vast majority of headlights are made of plastic, they require...
How Long Does a Headlamp Dimmer Switch Last?
Most drivers neglect to realize just how many systems have to work together to make driving at night possible. Among the most important things that you will have to possess when...
Car Hacks That Will Change Your Life
Simplify your drive with these car hacks: use a shoe as a cupholder, put a stocking on a windshield wiper, and prevent door dings with pool noodles.
How to Add Headlight Covers
A current trend in the automotive industry is to blackout a vehicle. That includes tinting the windows dark, installing black nameplates and emblems, black rims, and black tinted light...
How to Adjust Your Headlights
If you have ever cursed an oncoming driver because their lights were blinding you, or noticed that your lights tend to illuminate the tops of roadside trees instead of the road,...
How to Clean Headlight Covers
When your headlights become foggy, you can’t see as well at night and others aren’t able to see you as clearly or as far away. Cleaning them ensures your lights are bright...
What Does the Adaptive Lighting Indicator Warning Light Mean?
The adaptive lighting warning light means there is an issue with the automatic function for the front car headlights, which could be caused by dirt.
How to Use Your Car Lights to Stay Safe and Legal
s various lights in appropriate situations, makes driving safer for you, your passengers, and other drivers. In addition...
How Long Does a Headlight Door Motor Last?
Making sure that all of the systems on a car stay in good shape is not an easy job. There are a number of systems on a car that are built to ensure that you stay safe while...
What Do the Headlight Indicators Mean?
Headlight indicators help you know if your headlights, taillights, and high beams are on for your car.
How Headlights Are Tested and How Yours Can Be Improved
According to the Insurance Institute for Highway Safety (IIHS), about half of fatal roadway crashes happen in the dark, with about a quarter of...
How to Replace the Headlights on a Toyota Prius
Your headlights are one of the most important safety components for your car. A broken headlight bulb can endanger yourself and others on the road.
How to Replace a Headlight Closure Relay
Your headlights depend on the headlight relay located in your vehicle’s fuse box. Occasionally these relays need to be replaced.

Related questions

Question
electrical ( headlights )
It is possible both bulbs are burned out. The low beam filament in each bulb should be tested with an ohmmeter. The bulbs can also be powered off the car to see if both filaments work but be wary of...
Question
Headlights
I understand how frustrating this kind of issue can be. When it comes down to the problem you described, it has been my experience that older vehicles, with this type of issue, the problem normally comes down to either a...
Question
Headlight
Hello, thank you for writing in. Typically when both low beams go out at the same time, there is an issue with the power supply to them. This means you will want to start by checking the bulbs and making...
Question
How much should it cost to have a repair shop remove and replace my customer supplied Highbeam Headlamps (both of them)? 1996 Lexus SC300
Hello - unfortunately, this is not a service YourMechanic offers at this time. Thanks for thinking of us however!
Question
Headlights do not work.
Hi there. Depending on where the coolant sprayed out when the radiator hose came off will depend on what failed. If the lights had the coolant on them, then the light itself was shorted out. If the coolant went into...
Question
Truck shuts off when you turn headlight or turn signals on.
Hi there. Check all of the wiring from the headlight switch to the headlights and the turn signal switch to the turn signal lights. See if there is a short causing the lights to exceed the power limits causing the...
Question
I want to know what wire is the high beam wire.
Hi there. The best thing to do is get a digital volt meter or test light and check the headlight high beam harness for power and that will tell you which wire is the power wire for the high beam...
Question
My headlights wil not come on
The headlight sockets need to be checked for any heat damage. If the connectors look discolored or deformed from the heat of the bulb then you will need to replace the headlight sockets. They will overheat and the connection inside...
Question
Fog lights not working says high beams are on. Multi function switch does nothing.
Hi there. The issue is with the multi-function light switch. I recommend replacing the multi-function light switch. What is happening is that the contacts on the switch are damaged and causing the lights to have no effect. If you need...
Question
How do the automatic headlights work on a 2000 Lexus ES300?
There is an automatic dome sensor on the car, usually located on the dashboard near the windshield that registers the daylight in the sky. This sensor will make the headlights come on and turn on all the parking lights too....
Question
Headlight on the passenger side keeps going out. Have replaced the bulb and the ballast.
Hi there. Check the harness to the headlight with the headlight switch on and see if there is a voltage present. If there is a voltage, then check for resistance on the ground side of the harness. If there is...
Question
Headlights just stopped working
If manipulating the original switch caused the lights to turn on and off, that would suggest that the rest of the headlight circuit is OK. If you replaced the switch and yet you have the same symptom that you had...
Question
My headlights won't turn off
A fault in the circuit, such as a stuck closed (fused) switch or relay is causing the circuit to stay powered on even after you have commanded the circuit off through the combination switch. To isolate the faulty component, please...
Question
Can you use 100% brighter Xeon single bulbs in low and high beam
Hello, and thank you for writing in. Every vehicle is different, and without the make and model of your vehicle it is almost impossible to tell. Considering that you have 4 separate bulbs, you will want to match the wattage...
Question
When my high beams are turned on, not only do they not work but my low-beams also turn off.
Hello. You likely have an issue with your steering column multifunction switch. The steering column multifunction switch is in control of all the lights on the dashboard, the tail lights, as well as the headlights. It is likely your multifunction...
Question
Aftermarket headlamps, right parking light, and left parking light dashboard messages are on.
The message is on for the lights are not completing a circuit from the switch to the lights. Check all of the wiring on the lights and see if all of them are plugged in properly. Then look for any...
Question
My headlights doesn't seem to work good.
The issue with your lights is the ballast resistor is not working properly. Ballast resistors are designed to monitor the amount of voltage to the headlights. If the lights are dimming out and then not working, then the ballast resistor...
Question
Weird electrical problem
Hello, thank you for writing in. The electrical circuits that relate to both of these systems are crossing at some point. This may be an issue with the body control module, the fuse box, the bulbs, or the electrical wiring....
Question
electrical issue - Interior lights flicker when headlights are turned on.
Any time when lights are flickering, there is a loose ground wire or a short. If the headlights are turned on and the interior lights are flickering, then either the ground wire in the steering column is loose or there...
Question
Headlights
Hello, and thank you for writing in. When dealing with this kind of electrical issue, the easiest and fastest way to track down the issue is with a voltmeter. This way you can trace down where you have power, and...

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