What is the DRL light on a Subaru?
The DRL light signals the status of the Daytime Running Lights: whether DRLs are active or a fault in the DRL system has been detected.
Daytime Running Lights and Subaru’s approach
Daytime Running Lights are designed to boost daytime visibility. Subaru vehicles generally enable DRLs automatically when the engine is running or when the light switch is in Auto/On, using either dedicated LED daytime lights or the low-beam headlights at reduced brightness. In most models, DRLs are intended for daytime use and may dim or deactivate when the main headlights are engaged for night driving.
DRL behavior by lighting mode
Depending on the headlight switch position (Off, Auto, On), Subaru DRLs may vary in operation. In Auto or On, DRLs are typically active during daylight. Switching to Off or to a different mode can deactivate DRLs or alter their intensity, and some models integrate DRLs with the primary headlights so the indicator reflects the current lighting state.
Reading the DRL indicator on the dash
The DRL indicator on the instrument cluster is a small icon that typically resembles a headlight with a “DRL” label or marking in some markets. It lights up to show DRLs are active and may change color or appearance if there is a fault or if the system is disabled by the switch. For your exact model year and trim, consult the owner’s manual to identify the precise symbol used.
Common DRL statuses
Here are typical statuses you might observe and what they indicate:
- DRLs active: The daytime running lights are on, designed to improve daytime visibility.
- DRLs off or dim with headlights on: When you switch to full headlights, DRLs may dim or deactivate to avoid glare at night.
- DRL fault or warning: A fault in the DRL circuit may trigger a warning indicator or message; this can be due to a bulb/LED failure, a blown fuse, or a wiring issue.
In real-world use, most drivers will see DRLs come on automatically during daytime driving and respond predictably to changes in the lighting mode.
What to do if the DRL light indicates a fault
If the DRL indicator signals a fault, try these steps to diagnose or address the issue:
- Check the fuses: Locate the DRL circuit fuse and replace if blown, following the amperage specified in the owner’s manual.
- Inspect DRL bulbs or LED modules: If your model uses dedicated DRLs, verify that the bulbs or LED segments are not burned out or damaged.
- Check related wiring and connectors: Loose or damaged wiring near the headlight assemblies can trigger faults; inspect visible harnesses for damage or corrosion.
- Consult a Subaru technician: If you cannot identify or fix the fault, a dealer or qualified mechanic with OEM diagnostics can diagnose the issue accurately.
DRL faults can be intermittent; if the warning persists, schedule a service appointment to ensure daytime visibility remains reliable.
Summary
For Subaru owners, the DRL light is a gauge of Daytime Running Lights activity and health. It generally confirms that DRLs are on during the day and may signal a fault if something is not functioning properly. DRLs help improve daytime conspicuity, and their behavior can vary slightly by model year and trim, particularly regarding how they interact with the main headlights. When in doubt, consult the owner’s manual or contact a Subaru service professional to verify the symbol’s meaning for your vehicle and region.
