Parts for your 2012 Subaru Impreza-Exterior bulbs

2012 Subaru Impreza Exterior Bulbs — What They Do and How to Look After Them

Exterior bulbs are absolutely relevant and fitted to the 2012 Subaru Impreza. Technical references including the Subaru Owner’s Manual (MY2012 Impreza bulb replacement chart), the Subaru Service Manual – Lighting System, and AU/NZ fitment catalogues from lighting brands confirm the Impreza uses conventional halogen and wedge-base exterior globes for headlights, indicators, tail/stop, reverse, number plate and more.

On this model, the exterior bulbs handle everything from seeing down a dark country road to keeping other road users aware of braking and turning. Headlights are halogen (typically H11 for low beam and HB3/9005 for high beam per Subaru documentation), with wedge-base parkers and indicator/brake/tail lamps in the housings. Rear clusters use dual- and single-filament wedges for tail/stop, turn and reverse. Many AU/NZ cars also run daytime running lights via the high-beam circuit at reduced output, as outlined in Subaru’s service literature.

As part of routine servicing, it’s smart to check every exterior light with a quick walk‑around: headlights (low/high), parkers, indicators (front, side, rear), tail/stop, reverse, number plate and fog lamps. Replace any failed bulbs promptly—roadworthy rules in Australia and New Zealand require them to work, and a dull globe can be just as risky as a dead one.

Handy tips for replacement and care:

• Replace bulbs in pairs for consistent brightness and colour.
• Don’t touch the glass on halogen bulbs—use gloves or a clean tissue to avoid hot spots and early failure.
• Access headlight bulbs from the engine bay, some park/indicator and fog globes may need the inner guard liner unclipped for room on the Impreza chassis.
• Inspect connectors for heat discolouration and clean contacts if needed, a dab of dielectric grease helps keep moisture out.
• If upgrading to LEDs, choose CANbus-friendly indicator bulbs or add the correct resistors to prevent hyper‑flash, and ensure beam pattern and aim remain compliant.
• After any headlight work, check aim against a wall at night and adjust if necessary per Subaru’s procedure.

If bulbs are failing often, check charging system voltage and headlamp housings for moisture. The Owner’s Manual and Subaru service info list the correct wattage and cap types—sticking to those specs protects wiring, fuses and lenses while keeping the Impreza safe and legal on Aussie and Kiwi roads.

Popular Questions

What headlight bulb types does a 2012 Subaru Impreza use?
Subaru’s documentation for the 2012 Impreza specifies halogen headlights, typically H11 for low beam and HB3 (9005) for high beam on non-HID models. Always confirm against the vehicle’s bulb chart or the markings on the lamp housing, as trim and market variations can exist.

How often should exterior bulbs be replaced on a 2012 Impreza?
There’s no fixed interval—replace on condition. Check all lights at every service or every few months. If one halogen bulb fails, the other is usually not far behind, so replace in pairs to keep brightness even and avoid repeat visits.

Can the 2012 Impreza use LED bulbs?
Yes, many owners fit quality LED replacements for parkers, number plate and some indicators. For turn signals, use CANbus-friendly LEDs or the correct load resistors to prevent hyper‑flash. For headlights, ensure road-legal compliance, proper beam cutoff and aiming to avoid glare.