Learning how to turn car headlights on is a fundamental skill for every driver. Your headlights are a critical safety feature, and their control stalk or dial is typically found on the left side of the steering column. This guide will walk you through every step, from locating the controls to mastering different settings for any driving condition.
Modern cars offer several lighting modes, and it’s important to know which one to use and when. Using your lights correctly ensures you can see the road and, just as importantly, that other drivers can see you. Let’s get started with the basics.
How To Turn Car Headlights On
The primary control for your headlights is called the headlight switch. While its location and design can vary, the principles remain the same across most vehicles. You’ll usually find it on a stalk behind the steering wheel or on a dial on the dashboard to the driver’s left.
First, you need to get familiar with the symbols. These international symbols are your key to understanding the switch’s positions. Look for a dial or stalk end with icons representing different light functions.
Locating Your Headlight Controls
Before you can turn anything on, you need to find the switch. In the vast majority of cars, you will find the control in one of two places. Check these spots first if you’re in a new or unfamiliar vehicle.
- The Turn Signal Stalk: Often, the headlight controls are integrated into the same stalk you use for your turn signals. Look for a rotating ring or a twistable end on the left-hand stalk.
- The Dashboard Dial: Many cars have a standalone rotary dial on the dashboard, directly to the left of the steering wheel. This dial will have several click-stop positions.
- Touchscreen Menus: In some newer, high-tech vehicles, headlight controls may be within a vehicle settings menu on the center touchscreen. However, a physical switch for basic functions is usually still present.
Understanding Headlight Symbols And Settings
Once you’ve located the switch, you’ll see a series of symbols. Each symbol corresponds to a specific lighting mode. Here is what they mean, listed in the typical order you’ll find them on a dial.
- “O” or “OFF”: This position turns all exterior lights off. Your daytime running lights (DRLs) may still be on in this setting, depending on your car.
- Parking Lights (Small, Green Symbol): This setting turns on small marker lights at the front and rear of your car. They are not for driving; they are for making your parked car visible.
- Low Beam Headlights (Green, Slanted Lines): This is the standard setting for night driving and poor weather. The beams are angled down to light the road without blinding oncoming traffic.
- High Beam Headlights (Blue, Straight Lines): This symbol is blue. It activates your brights, which project light farther down the road. You must dim them for oncoming cars.
- Auto (AUTO): If your car has an automatic light sensor, this setting lets the car decide when to turn the low beams on and off based on ambient light.
Step-By-Step Instructions For Common Switch Types
Now, let’s go through the physical steps for the most common types of switches. Follow these instructions to activate your lights.
For A Rotary Dial Switch
- Look for the dial on the dashboard left of the steering wheel.
- Rotate the dial clockwise from “OFF” through the symbols.
- Stop at the “Low Beam” symbol (slanted lines) for normal night driving.
- To activate high beams, you usually push the entire turn signal stalk forward. Pull it back to toggle them off or flash them.
For A Stalk-Mounted Control
- Find the rotating ring or end-piece on the turn signal stalk.
- Twist the ring until the indicator on your dashboard aligns with the “Low Beam” symbol.
- To use high beams, push the entire stalk away from you. A blue light will appear on your dashboard. Pull the stalk toward you to return to low beams.
Activating Your High Beam Headlights
High beams are a powerful tool for seeing further on dark, empty roads. However, they must be used responsibly to avoid blinding other drivers. The control is typically separate from the main light switch.
On most cars, you turn the main switch to the low beam position first. Then, you push the turn signal stalk forward to lock the high beams on. A solid blue indicator light on your dashboard will confirm they are active. To turn them off, pull the stalk back toward you. You can also “flash” your high beams by pulling the stalk toward you and releasing it; this is a quick way to signal other drivers.
Using Automatic Headlights And Daytime Running Lights
Modern vehicles often come with automated lighting systems. These features provide convenience and an added layer of safety, but you still need to understand how they work.
How Automatic Headlights Function
If your car has an “AUTO” setting on the switch, you can use it to simplify your lighting. A small sensor, usually located on the top of the dashboard near the windshield, detects how much light is in the environment.
- When the sensor detects dusk, tunnel entry, or heavy rain, it automatically turns on your low-beam headlights.
- When you return to a bright area, it will turn the headlights off after a short delay.
- It is important to note that you still must manually control your high beams. The auto setting typically does not manage those.
The Role Of Daytime Running Lights (DRLs)
Daytime Running Lights are low-wattage lights at the front of your car that turn on automatically whenever the engine is running and the main lights are off. They are designed to increase your car’s visibility during daylight hours.
Crucially, DRLs do not illuminate your rear tail lights or your dashboard. This means if you drive at night with only DRLs, you are virtually invisible from behind and your instrument cluster will be dark. Always ensure your main headlights are on when it gets dark or in poor weather.
When And Why To Use Different Headlight Settings
Using the correct setting is just as important as knowing how to turn them on. The right lights for the conditions keep you safe and in compliance with the law.
Driving At Night And On Dark Roads
For standard night driving on roads with other traffic, your low-beam headlights are the correct choice. They provide a safe, wide pool of light without creating glare for oncoming drivers. Switch to high beams only when you are on a very dark road with no oncoming traffic for a significant distance ahead. Remember to dim them as soon as you see another car’s lights.
Using Headlights In Rain, Fog, And Snow
In adverse weather, visibility drops dramatically. State laws often require headlights to be on whenever your windshield wipers are in use. In these conditions, always use your low beams.
Avoid using your high beams in fog, heavy rain, or snow. The bright light will reflect off the water droplets or ice crystals back into your eyes, actually reducing your visibility. Your low beams, and specifically your fog lights if you have them, are much more effective.
Parking Lights Vs. Headlights
This is a common point of confusion. Parking lights are not a substitute for headlights while driving. They are only bright enough to mark a parked car’s position. If you are driving, you should always use your proper headlights (low beams) after dark or in poor weather. Relying on just parking lights makes your car very difficult for others to see.
Troubleshooting Common Headlight Problems
Sometimes, you might turn the switch and nothing happens. Before calling for help, check these common issues. A simple fix can often get you back on the road safely.
Headlights Will Not Turn On
If neither headlight works, the problem is likely not the bulbs. Two bulbs rarely fail at exactly the same time. Start with these checks:
- Verify the headlight switch is firmly in the correct position. It can sometimes be between settings.
- Check your car’s fuse box. A blown fuse for the headlight circuit will disable them. Your owner’s manual has a fuse diagram.
- Ensure your vehicle is not in “accessory” mode. Some cars will not power the headlights unless the ignition is fully on.
Only One Headlight Is Working
If one light is out, it is almost certainly a burned-out bulb. This is a common maintenance item. Plan to replace the bulb soon, as driving with one headlight is dangerous and may get you pulled over. Remember to replace them in pairs, as the other bulb is likely near the end of its life too.
High Beams Are Not Engaging
If your low beams work but your high beams do not, the issue could be a few things. First, check that the blue high beam indicator light on your dashboard comes on when you try to activate them. If it does but the lights don’t change, you may have a special type of dual-filament bulb where the high beam filament has burned out. If the indicator doesn’t light, the problem could be with the stalk switch or a fuse.
Essential Headlight Safety And Legal Tips
Proper headlight use is a legal requirement. Failing to use them correctly can result in fines and, more importantly, significantly increase your risk of an accident.
State Laws And Headlight Use
Every state has laws governing when headlights must be on. While they vary, a common rule is “from sunset to sunrise.” Many states also have a “wipers on, lights on” rule and require lights in conditions of reduced visibility, like fog. It is your responsibility to know the laws in your state and any state you drive through.
Preventing Glare For Other Drivers
Misaimed or improperly used headlights are a major source of dangerous glare. Always dim your high beams for oncoming traffic and when following another car closely. If your car has fog lights, use them only in appropriate conditions, as they can also cause glare on clear nights. If an oncoming driver has forgotten their high beams, avoid looking directly at the lights and focus on the right edge of your lane.
Regular Maintenance Checks
You should periodically check your headlights to ensure they are working and aimed correctly. Turn them on and walk around the car. Have a friend press the brake pedal so you can check those lights too. Clean your headlight lenses regularly, as yellowed or dirty plastic can drastically reduce their output. If you notice a headlight is pointing too high or too low, have its aim adjusted at a service center.
Frequently Asked Questions
How Do I Turn On My Headlights In A Specific Car Model?
The best resource for model-specific details is your vehicle’s owner’s manual. It will have diagrams and instructions for your exact control layout. You can usually find a digital copy online by searching your car’s year, make, and model followed by “owner’s manual.”
What Should I Do If My Headlight Switch Is Broken?
If the switch itself fails, you may be unable to turn your lights on. As a temporary measure, some vehicles have a “headlight on” warning chime that can sometimes keep lights on if you disconnect the switch. However, the safest course of action is to avoid driving at night until a professional can repair the switch.
Do I Need To Turn My Headlights On During The Day?
It is a excellent safety practice to drive with your low beams on during the day, especially on two-lane roads or in overcast weather. It makes your vehicle more conspicuous to other drivers, motorcyclists, and pedestrians. Many modern cars do this automatically with DRLs, but turning on the full headlights ensures your tail lights are also illuminated.
Why Are My Headlights Very Dim?
Dim headlights are often caused by cloudy or oxidized plastic lenses. Over time, UV exposure damages the plastic. You can use a headlight restoration kit to clean and clear them. Another cause could be a weak electrical connection or a failing alternator not providing full voltage to the bulbs.
How Do I Change A Headlight Bulb?
The process varies greatly by vehicle. Generally, you open the hood, access the back of the headlight assembly from the engine bay, disconnect the wiring harness, remove a retaining clip or ring, and then remove the old bulb. It is crucial to not touch the glass of a new halogen bulb with your bare fingers, as oils from your skin can cause it to overheat and fail prematurely.