Toyota iQ: reliability by registration year
2009-2014 · 6 registration years · 16,156 first tests
Registration years
First-attempt MOT results for every iQ registration year with at least 500 first tests in 2025. Pass rates rise with newer cars, so read a year against its neighbours rather than against the top of the table. Years without their own report are listed here with the same figures.
| Year | First tests | First-attempt pass | Incl. PRS | Most common failure |
|---|---|---|---|---|
| 2014 | 819 | 82.9% | 87.7% | |
| 2013 | 1,252 | 77.3% | 83.7% | |
| 2012 | 2,256 | 76.4% | 83.6% | Individual sidelight or tail light (front) 14.3% |
| 2011 | 2,399 | 74.2% | 80.9% | Individual sidelight or tail light (front) 14.7% |
| 2010 | 3,576 | 72.9% | 80.1% | Individual sidelight or tail light (front) 12.6% |
| 2009 | 5,854 | 71.0% | 78.4% | Individual sidelight or tail light (front) 11.8% |
| about 2 in every 100 worse than the years either side. What most often failed a 2009 iQ: Individual sidelight or tail light (front) (11.8%) · Anti-roll bar linkage ball joint dust cover (front) (10.8%) · Windscreen washers (7.6%) | ||||