2025 Subaru Crosstrek Bulb Size Guide

Quick reference

The 2025 Subaru Crosstrek continues to offer a blend of utility and modern technology, and its lighting system reflects this with a mix of halogen and LED applications. Understanding the specific bulb sizes and types for your Crosstrek is crucial, whether you're performing routine maintenance or considering an upgrade.

Headlights

For the 2025 Crosstrek, the headlight configuration varies significantly by trim level. Base and Premium trims typically come equipped with traditional halogen bulbs for both low and high beams, utilizing H11 for low beams and 9005 for high beams. These provide reliable illumination and are cost-effective to replace.

Sport, Limited, and Wilderness trims, however, feature full LED headlights, providing brighter, more efficient, and longer-lasting illumination. These LED units are often integrated into the headlight assembly and are not user-serviceable bulb replacements in the traditional sense. If an LED headlight unit fails, it typically requires replacement of the entire assembly, which can be more expensive.

Fog Lights

Fog lights, when equipped (standard on Premium, Sport, Limited, and Wilderness trims), commonly use an H16 halogen bulb. These bulbs are designed to cut through fog, rain, and snow more effectively than standard headlights, improving visibility in adverse conditions.

Daytime Running Lights (DRL)

Daytime Running Lights (DRLs) on the 2025 Crosstrek are integrated LED units across most trim levels. These provide increased visibility during daylight hours and are designed for a very long lifespan, similar to the main LED headlights.

Turn Signals

Both the front and rear turn signals on most 2025 Crosstrek models are typically halogen bulbs. The front turn signals commonly use a PY21W or 7440A bulb, while the rear turn signals use a 7440 or WY21W bulb. These amber-colored bulbs ensure clear signaling to other drivers.

Brake and Tail Lights

The brake and tail light configurations also see variation based on trim. Higher trims (Sport, Limited, Wilderness) will often feature integrated LED brake and tail lights, offering faster illumination and modern aesthetics. Lower trims (Base, Premium) may still use a 7443 dual-filament halogen bulb for combined brake and tail light functions. It's important to verify your specific trim level to determine the correct type.

Reverse Lights

For backing up, the 2025 Crosstrek commonly uses a 921 halogen bulb for its reverse lights. These provide sufficient bright white light to illuminate the area behind the vehicle.

License Plate Lights

Illuminating your license plate is typically handled by 168 halogen bulbs. These small but important bulbs ensure your license plate is visible at night.

Side Marker Lights

Front side marker lights are often integrated into the headlight housing and frequently use a 168 halogen bulb. Rear side markers are typically integrated into the main tail light assembly, sometimes utilizing LEDs on higher trims.

Interior Lighting

Inside the cabin, the 2025 Crosstrek generally employs halogen bulbs for convenience lighting. The dome light commonly uses a DE3175 bulb, while the front map lights often use 168 bulbs. These provide adequate illumination for the interior.

LED vs Halogen Upgrade Considerations

Upgrading from halogen to LED bulbs can significantly enhance the lighting performance of your 2025 Subaru Crosstrek, offering brighter light, a whiter color temperature, and improved longevity. However, there are several considerations:

• CANBUS Errors: Modern vehicles like the Crosstrek feature complex electrical systems monitored by the CANBUS (Controller Area Network Bus). LED bulbs draw less power than halogens, which can sometimes trigger