Parts for your 2003 Toyota Bb-Tail lights

2003 Toyota bB tail-lights

Yes — the 2003 Toyota bB is fitted with tail-lights. This is confirmed by Toyota’s service information and the Toyota Electronic Parts Catalogue for the NCP30/NCP31 series, which list complete rear combination (tail) lamp assemblies and service bulbs. The owner’s manual for the bB also details lamp replacement for rear position lights. Beyond Toyota’s documentation, road lighting regulations that applied to this model at the time — such as Australia’s ADR lighting rules and New Zealand’s Land Transport Rule: Vehicle Lighting 2004 — require operational rear position (tail) lamps on passenger vehicles. So, tail-lights are absolutely relevant to the 2003 Toyota bB.

The tail-lights on a bB do the simple but crucial job of making the vehicle visible from behind in low light, rain and at night. They illuminate in red with the park/headlights on, and sit within a rear combination lamp that also houses brake, indicator and reverse lights. While many drivers say “tail-lights” to mean the whole rear assembly, the tail function specifically is the steady red “rear position” light — separate from the brighter brake lamp.

For hassle-free ownership, a quick tail-light check belongs in every service. Look for cracked lenses, faded reflectors and moisture inside the lamp, which can shorten bulb life. If a light is out, first check the TAIL fuse in the interior fuse box, then test the bulb. The bB typically uses a dual‑filament 7443 (W21/5W) bulb for stop/tail in many trims and a small T10 (W5W) wedge for rear position or number-plate lighting, but always confirm against your exact build or the stamping on the lamp holder.

1. Open the tailgate, pull the interior trim away at the lamp edge, and undo the retaining clips/bolts.
2. Support the lamp and slide it straight back to avoid breaking the locating pins.
3. Twist the bulb holders anticlockwise, pull the old bulb out, and avoid touching the glass on the new one.
4. Inspect the foam gasket