Can daytime running lights be turned off?

Yes, in many cars you can disable daytime running lights (DRLs) in some circumstances, but it depends on the model and the regulations in your country. DRLs are often mandated for safety in many regions, so turning them off may be illegal or require dealer involvement. This article explains how DRLs work, the regional rules that apply, and how you might disable them if permitted.

Understanding daytime running lights

Daytime running lights are automatically activated during daylight hours to improve a vehicle’s visibility to other road users. They typically use dedicated lights or the vehicle’s low-beam headlights, and many systems switch off when the headlights are turned on or when the car enters a mode that requires full headlights. DRLs differ from parking lights or full headlights and are designed to be less bright while still offering daytime visibility.

Legal and regulatory context by region

Regional rules regarding DRLs vary. In much of the European Union and the United Kingdom, DRLs are mandatory on new passenger cars and disabling them without authorization is generally not permitted. In the United States, there is no nationwide DRL mandate, but some cars include DRLs as standard equipment; legality and availability of a disable option can depend on state law and vehicle type. Other markets may require DRLs or permit disabling only under specific conditions. Always check local laws and your vehicle’s manual before attempting any simplification or deactivation.

Because regulations can change and vary by country, the safest approach is to verify with local authorities and your vehicle manufacturer before attempting to turn DRLs off.

Ways DRLs can be disabled (where allowed)

The following methods cover common options that manufacturers or dealers may provide. Always verify with your manual or a trained technician, as abilities vary by make and model.

• In-vehicle settings: Some cars offer a DRL on/off option within the Lighting or Vehicle Settings menu, sometimes grouped under "Automatic Lighting" or "Daytime Running Lights."


• Headlight switch modes: A few models let you disable DRLs by selecting a non-Auto headlight mode (such as Parking or Low Beam) where the system permits, though DRLs may resume in Auto mode.


• Dealer programming or software updates: Certain markets or fleets may have DRLs disabled via official programming or service bulletins, typically through authorized service centers.


• Official optional features or packages: Some vehicles provide a sanctioned option to turn DRLs off for specific circumstances, while keeping compliance intact.


• Do not attempt to disable by removing fuses or wiring: This can void warranties and create safety or regulatory issues.

Closing note: If your manual confirms that disabling DRLs is possible, follow manufacturer-approved methods to avoid safety and compliance problems.

Safety and practical considerations

DRLs improve daytime visibility, reducing the risk of collisions with other road users. Turning them off can decrease daytime conspicuity, potentially increasing the chance of accidents in daylight. If you temporarily disable DRLs for maintenance or testing, make sure you re-enable them afterward to preserve safety standards and compliance.

What to check before attempting to disable

Before attempting any deactivation, consider these checks to avoid legal or safety pitfalls.

• Regional legality: Confirm whether DRL disabling is permitted under local laws and regulations.


• Warranty implications: Understand whether disabling DRLs could affect your vehicle warranty or service agreements.


• Model-specific instructions: Read the owner’s manual for model-specific steps and limitations.


• Testing and reversion: Ensure you know how to re-enable DRLs if needed and verify proper operation after any change.

If you’re unsure, consult your dealer or a qualified service professional to ensure any changes are compliant and safe.

Summary

Daytime running lights can often be disabled through official settings or dealer programming, but in many markets DRLs are legally mandated and turning them off may be restricted or prohibited. The availability of a disable option depends on the vehicle model, market regulations, and sometimes the warranty terms. Always consult the owner’s manual and local laws, and use manufacturer-approved methods if a disable is necessary for a legitimate reason.

Can you turn the daytime running lights off?

Although DRLs aren't required by law, it's rare to be able to turn them off. The daytime running lights turn on when you start the vehicle and turn off only when you turn off the vehicle. Only some carmakers provide a DRL OFF switch in select models, like Volkswagen, Subaru, and Toyota.

Can you get pulled over for a daytime running light being out?

Unfortunately yes. DRLs are safety equipment and are supposed to be working. If your car has them and one is out, an officer can initiate a traffic stop (where that isn't specifically illegal).

Are daytime running lights always on?

No, daytime running lights (DRLs) are not always on; they are designed to turn on automatically when the engine starts and turn off when the engine is turned off. However, on some cars, the DRLs may remain on, or there is an option to turn them off through specific settings or with the parking brake. In many cases, the main headlights will automatically activate when it gets dark, which can dim the DRLs or turn them off. 

• Automatic function: In most modern vehicles, DRLs automatically activate when the engine is started and remain on as long as the engine is running. 
• Automatic headlights: The main headlights (low beams) will automatically turn on as ambient light decreases, such as at dusk, in tunnels, or in bad weather. 
• Manual override: Some cars, often with specific settings or through a combination of engaging the parking brake and turning off the headlights, can disable the DRLs. 
• Dimming: When the main headlights are turned on, the DRLs may dim slightly to work in conjunction with the headlights, rather than being completely off. 
• Purpose: The primary purpose of DRLs is to increase your vehicle's visibility to other drivers during the day, reducing the risk of accidents. 

Is there a fuse for daytime running lights?

Yes, most vehicles have a fuse for daytime running lights (DRLs), but its location and the process for replacing it vary by make and model. To find the correct fuse, check the vehicle's owner's manual or the diagram on the fuse box lid, which is typically located under the hood. 
This video shows how to find the DRL fuse in a Chevrolet Silverado: 36sElectrical Car Repair LIVEYouTube · Aug 1, 2023
How to find and check the DRL fuse

1. Locate the fuse box: Look for the fuse box under the hood, usually on the driver's side. Some models may have additional fuse boxes elsewhere, such as in the trunk. 
2. Consult the diagram: Open the fuse box and find the diagram on the inside of the lid. This diagram will identify the specific fuse for the DRLs. 
3. Identify the fuse: The diagram will show the location of the fuse, which may be labeled as "DRL" or have a related symbol. Some vehicles may have multiple fuses related to DRLs, such as fuses 31 and 33 in some Chevy/GMC models. 
4. Remove and inspect the fuse: Use a fuse puller to remove the fuse. Visually inspect the metal wire inside. If it's broken or the plastic is discolored, it is blown and needs to be replaced with one of the same amperage rating. 

Other issues to consider

• Bulb or wiring problems: If the fuse is not blown, the problem could be a burnt-out bulb or a wiring issue. If only one light is out, it is likely the bulb or its socket. 
• Body Control Module (BCM): In some newer cars, DRLs are controlled by the BCM, and there may not be a single, easily accessible fuse. In this case, a blown fuse may not be the cause, or it may be tied to other circuits. 

You can watch this video to learn how to diagnose DRL issues: 59s1A Auto: Repair Tips & Secrets Only Mechanics KnowYouTube · Jun 9, 2021