Registration plate lamp inoperative (single lamp) on the Toyota Prius
Registration plate lamp inoperative (single lamp) on the Toyota Prius is recorded on 12,470 tests — 2.3% of all its MOT tests, against 0.9% across every car in the data. That is 2.6× the national share.
Is this unusual for this model?
| Compared with | What it says |
|---|---|
| Every car in the data | 0.9% of tests record it — this model is 2.6× that share |
| The 277 models compared | 27 of 277, highest first |
| The model's own record | 538,036 tests · every year of the Prius → |
A share of tests is not a probability for your car: it counts every Toyota Prius tested, whatever its mileage, service history and use. The like-for-like comparison on the model page is the fairer number.
Year by year
In 2004, 1.2% of this model's tests recorded it; in 2021, 0.3%. The share has fallen 0.9 points over that time. Worst year 2014 at 1.9%; best 2021 at 0.3%.
| Year | Failures recorded | Tests | Share of tests |
|---|---|---|---|
| 2004 | 74 | 6,272 | 1.2% |
| 2005 | 199 | 16,900 | 1.2% |
| 2006 | 311 | 25,550 | 1.2% |
| 2007 | 478 | 47,294 | 1.0% |
| 2008 | 441 | 47,248 | 0.9% |
| 2009 | 739 | 48,826 | 1.5% |
| 2010 | 1,229 | 66,638 | 1.8% |
| 2011 | 894 | 49,402 | 1.8% |
| 2012 | 912 | 53,960 | 1.7% |
| 2013 | 1,012 | 58,878 | 1.7% |
| 2014 | 1,410 | 76,370 | 1.9% |
| 2015 | 1,578 | 88,436 | 1.8% |
| 2016 | 745 | 99,926 | 0.8% |
| 2017 | 381 | 99,372 | 0.4% |
| 2018 | 442 | 95,460 | 0.5% |
| 2019 | 1,090 | 111,016 | 1.0% |
| 2020 | 472 | 58,574 | 0.8% |
| 2021 | 40 | 14,220 | 0.3% |
Years with fewer than 0.2% of tests recording the item are left out: a year with two failures in 400 tests is noise, and this table is not here to make noise look like a trend.
What it costs
A typical UK repair for this item is £5–£20 fitted. It is a job a careful owner can do at home. What the part is, and what to buy →
Prices are typical UK supply-and-fitting estimates, not quotes. What happens if it fails covers the retest rules.
Where this sits
- Registration plate lamp inoperative (single lamp): every model, every year → — the item's own page, with the part guide.
- Toyota Prius MOT pass rate by year → — the model's whole record, and what else it fails on.
- Every Toyota model →