Toyota Corolla Tail Lights: Specs, Fitment & Common Faults
On the Corolla, never block a tail light's vent holes, even though it seems like a sensible way to keep moisture out.
Illustration for editorial purposes
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A Genuinely Important Warning Worth Knowing Before Attempting a DIY Fix
Tail lights have small, deliberate vent holes built in specifically for pressure balance — never block or seal these, even if it seems like a sensible way to keep moisture out, since doing so can cause severe deformation or cracking of the housing instead. Light fogging that clears within a few hours, particularly after a wash or temperature change, is normal physics rather than a fault; only persistent water pooling or corrosion on the internal reflector genuinely needs addressing.
It's also worth knowing that a broken seal, rather than the light unit's design, is the most common genuine cause of persistent water ingress rather than simple condensation — worth distinguishing between the two before assuming a full replacement is necessary.
Toyota Corolla Tail Lights: More Wiring Behind There Than Most People Assume
Because brake light, indicator, reversing light and rear fog light are usually combined in one Toyota Corolla tail light housing, a single electrical fault can knock out more than one function at once — which is why this particular complaint rarely means just one thing.
Toyota Corolla Tail Lights: OEM Part Number
| Hatchback, outer lens & housing (left) | Toyota OEM: 8156112D31 |
|---|---|
| Hatchback, outer lens & housing (right) | Toyota OEM: 8155112D31 |
| Saloon inner assembly | Different reference to the outer — Saloon uses both an inner and outer light per side |
If your Corolla is a Saloon and you're only replacing the outer tail light, double-check whether the inner light (mounted to the boot lid) is also damaged — they're separate parts, and it's easy to order only one when both need attention.
Toyota Corolla Tail Lights: What It Does
Beyond basic rear visibility, tail light units on the Corolla typically integrate brake lights, indicators, reversing lights and rear fog lights into a single housing. Higher trims may use LED units with a distinct light signature, which are not interchangeable with standard halogen units even if the physical mounting looks similar.
Fitment & Compatibility
Toyota Corolla Tail Lights: Generations, Derivatives & Tail Light Type
| LE trim | Fully halogen/incandescent — no LED elements at all |
|---|---|
| SE/XSE trims | Genuinely a mixed setup within the same unit — the brake light function is LED while the turn signal and reverse light functions remain halogen/incandescent; this isn't a fault, it's how the unit was designed, and it can look confusingly LED-like at night due to the bright brake element |
| GR Corolla/hatchback | Full LED tail lights with sequential turn signals are available as both genuine and aftermarket options, a distinct design from the saloon's mixed-technology unit |
Tail light design changed between generations of the Corolla, and facelifted versions within the same generation often use a revised light signature that isn't interchangeable with pre-facelift units. Always confirm the exact part for your specific model year before ordering. Whether you're sourcing a replacement tail lights for your Toyota Corolla from a dealer, specialist, or online marketplace, always check compatibility against your registration or VIN before buying, and confirm you're ordering the correct side — driver's side (RH in the UK) or passenger side (LH in the UK) — since these are not interchangeable.
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Toyota Corolla Tail Lights: Common Faults, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Tail Lights Guide for diagnosing which circuit has failed, how easy this job is to DIY, and aftermarket advice.
More Toyota Tail Lights
The same part, covered across other Toyota models.