Parts for your 2015 Subaru Impreza-Exterior bulbs

2015 Subaru Impreza Exterior Bulbs – Purpose, care and replacement

Exterior bulbs are absolutely used on the 2015 Subaru Impreza. Subaru’s 2015 Impreza Owner’s Manual (Lighting section) and the factory Service Manual (Body Electrical/Exterior Lighting) outline the headlamps, indicators, tail/stop, reverse, fog, side repeaters and number-plate lamps fitted to this model. These lamps are essential for visibility and to meet Australian Design Rules and NZ Transport Agency lighting requirements.

On this Impreza, exterior bulbs do the heavy lifting for night-time visibility and signalling. Low and high beams light the road, indicators and hazards communicate direction changes, tail and stop lamps keep following traffic informed, while reverse and fog lamps help in tight or poor-weather conditions. Many trims use halogen bulbs such as H11 low beam and HB3/9005 high beam, with 7443/7440 for tail/indicator duties and T10/W5W for parkers and number-plate lamps. Exact types can vary by trim and body style (sedan vs hatch), so the Owner’s Manual listings should be followed.

As part of routine servicing, it’s smart to check all exterior bulbs every few months or 10,000 km. A quick walk-around with the parkers, headlamps (low and high), indicators, brake lights and reverse lamps engaged will catch failures early. Replace bulbs in pairs for consistent brightness and colour. When swapping halogen bulbs, avoid touching the glass—skin oils can shorten bulb life. If a bulb keeps blowing, inspect the socket for corrosion, check fuses and earths, and confirm charging voltage is within spec.

LED retrofit bulbs are popular, but they must be compliant and compatible with the reflector or projector design to avoid glare. Where fitted from factory or as approved accessories, ensure beam aim is set correctly after any replacement—mis-aimed lamps can fail inspection and reduce safety. Fog lamps should be used only in poor visibility, preserving their lifespan.

• Follow the Subaru Owner’s Manual for correct bulb specs and access points (front wheel-arch liners, rear lamp housings, and number-plate trim panels).
• Keep spare common bulbs in the glovebox for road trips.
• If unsure, a workshop can test lamp circuits and adjust headlamp aim during a regular service.

Popular questions about 2015 Subaru Impreza exterior bulbs

What bulb types does a 2015 Impreza use for headlights and tail lights?
Most trims use halogen H11 for low beam and HB3/9005 for high beam. Tail/stop often use 7443 dual-filament, indicators 7440 (amber), parkers and number-plate T10/W5W. Variations exist by trim and market, so checking the 2015 Subaru Impreza Owner’s Manual is the safest bet before buying replacements.

Can LED replacements be used legally in Australia or New Zealand?
They can be, provided the LED bulbs are compliant and suitable for the lamp housing. Poorly matched LEDs can cause glare or fail inspection. Choose ADR/NZTA-compliant parts, ensure correct beam pattern, and have headlamp aim checked after installation.

How often should exterior bulbs be checked?
A quick monthly check is ideal, with a more thorough inspection at each service or every 10,000 km. Replace bulbs in pairs, and if failures repeat, have the charging system and lamp earths tested.