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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
If you’re one of those people who finds ingenious solutions to everyday problems, you’re probably the envy of all your friends. “Why didn’t I think of that?” is a phrase you hear...
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

My tail lights and dash lights stay on when I turn the key off
Hello there, many faults will cause your 2001 Chevrolet Prizm to have the dash lights and tail lights staying on when the vehicle is turned off. The most likely cause would be the ignition switch or a wiring harness faults....
Headlights and fog lights won't come on
Hey there. You've covered the basics it seems. This problem may be more than just replacing a part. A technician with access to the wiring diagram for the circuit will be able to check for power and ground along certain...
My low beam headlights will not work how can I fix this?
Hi there, thanks for writing in. If the headlamps are not coming on at all, then you may have an issue with the control circuit. The controls for these lights come from the body control module. It is common for...
The high beams won't work, and when I try to turn them on, all my other lights dim bright and the motor bogs down a little
Hi, thanks for writing in. The power for the headlights run through the switch on this truck (vs using relays to get full 12v to the bulbs. So the switch, or its connector plug has probably failed and must be...
My brake lights and head lights won't come on. It's not a blown fuse.
Hello, thanks for writing in. If all of these lights stopped working at the same time then you either have a main switch problem or a voltage issue from the fuse box. From my experience with this vehicle it is...
All of my lights went out at once
Hi, thanks for writing in. When it comes to electrical issues like this one, the problem can come from many components. While it is possible that all of the light bulbs would go out at once, it is highly unlikely....
Headlights come on when off in middle of night draining battery
There are several possibilities that may be the source of this issue - first make sure your headlight switch is in the "Off" position (rather than "Auto" for example). Then remove both the headlight relay and the daytime running light...
Charging system issue - 1991 Mercury Capri
Hello. It sounds like you have a bad connection. If the alternator is fine, then the negative battery connections should be checked. It is common for negative ground connections to become loose or corroded which will cause this. If those...
I have no tail lights but all other lights work
Hey there. You should check to see if you have front parking lights. If the front parking lights work, then the rear parking lights will have bad bulbs or sockets for the bulbs. The front and rear parking lights are...
Just replaced my battery and my car still won't start, what's next?
Hello. You likely have an electrical issue caused by the water from the hurricane. I would guess your first battery was still good, just drained because the flooding caused your electrical components to run while the vehicle is off. Get...
Headlights aim too low when properly adjusted by two mechanics.
Hello. If the headlights are not pointed correctly, then they likely need to be adjusted. Even if a technician has already adjusted them, it may be possible that they were incorrectly pointed. An issue with the mounting may also be...
Passenger headlight duller and full beam does not work
Hi, thanks for writing in. When you went to replace the bulb, did you find any amount of corrosion or signs of burns on the connectors or bulb sockets? Try replacing all of the bulbs at the same time before...
Is the high beam a separate bulb from the low beams
No, the bulb will have two separate filaments in the same bulb. If you need help with a bulb replacement, a technician from YourMechanic can perform this service at your home or office.
Front blinker issues. Blinkers work but flashing fast. Front blinkers are on but don't flash when headlights are on.
Hi, thanks for writing in. It seems that the new bulbs that were put in most likely were not the correct bulbs. If the bulb has higher resistance than it should or improper grounding can cause the light to flash...
Headlights not working - 2005 Buick LeSabre
Hello. A common fault is the combination / multi-function switch. This is the signal / high beam switch located on the steering column. If you need help having this checked, a qualified professional from YourMechanic can come to your location...
Hi, thanks for your question about how to adjust your headlight screws. The top inside vertical screw will adjust the up and down for you. The lower inside horizontal screw adjusts the light to the left or right.
Cannot find the headlight relay location note: does not have automatic headlights
If you do not have automatic lights then you do not have a relay. In the instrument panel fuse box, the head light switch and fuse 10 supply power to a multi-function switch which sends power directly to the lights....
What does it mean when my headlights won't come on?
Headlights are relatively simple circuits. You will want to check all components from the switch to the bulb. To perform these tests, you will need to have a voltmeter and understand how to use it. You will test for available...
Headlights/Tailights/Turn Sights do not work
Hi there. It appears that you are not getting the right voltage to your lights. Most of the time this is caused by a failure in the multifunction switch. This is the switch that turns these off and on. I...
What type of headlights do I have?
Your vehicle was available with both halogen headlights or optional HID headlights. The HID headlights bulbs will have a small metal "box" at the rear of the bulb, which is the "igniter" for the bulb. Halogen bulbs will not have...

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