Lexus IS 2011: MOT failure rate for its age
20.3% of 9,224 MOT tests of the Lexus IS first registered in 2011 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 101.6 (95% CI 97.0–106.2; 100 = normal for this model at that age): the 2011 build year is no different from other years of the same model at the same age.
| Measure | Value | Unit | Compared with | Years | Tests |
|---|---|---|---|---|---|
| Failed first time | 20.3 | % | all ages tested | 2019–2024 | 9224 |
| Index against this model at the same age (95% CI 97.0–106.2) | 101.6 | index | 100 = normal for this model at that age | 2019–2024 | 9224 |
| Rank among this model's 22 build years | 16 | of 22 | 1 = fails least for its age | 2019–2024 | 9224 |
| Tested in 2024 | 1512 | tests | median 87,810 miles | 2024 | 1512 |
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · full dataset (v5).
How does the 2011 Lexus IS fail at each age?
Cars built in 2011 were tested at ages 8 to 13 between 2019 and 2024. Each row compares their first-time failure share with what this model normally shows at that age, after allowing for the overall failure level of each test year.
| Age | Tests | Failed, % | 95% interval | Normal for this model at that age, % | Index (100 = normal) |
|---|---|---|---|---|---|
| 8 | 1,582 | 18.6 | 16.8–20.6 | 15.2 | 122.8 |
| 9 | 1,520 | 19.6 | 17.7–21.7 | 15.9 | 123 |
| 10 | 1,553 | 19.1 | 17.2–21.2 | 18.2 | 105.3 |
| 11 | 1,540 | 20.3 | 18.4–22.4 | 21 | 96.9 |
| 12 | 1,517 | 21.6 | 19.6–23.8 | 24.4 | 88.7 |
| 13 | 1,512 | 22.6 | 20.5–24.7 | 25.4 | 88.7 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 9,224 (initial tests) · Method: normal rate = this model's first-time failure share at that age across its build years (cells of 400+ tests), adjusted for each test year's overall level; cells of 30+ tests, under 500 marked rough · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV
What fails most on the 2011 Lexus IS?
The most common failure group on cars built in 2011 is brakes: 10 items per 100 first tests, against 10.1 across all build years of the Lexus IS. These counts are not age-adjusted: cars built in 2011 were tested at ages 8 to 13.
| Failure group | Built 2011, per 100 | All build years, per 100 | Items |
|---|---|---|---|
| Brakes | 10 | 10.1 | 920 |
| Lamps, reflectors and electrical equipment | 9.7 | 17.3 | 895 |
| Tyres | 8.9 | 9.8 | 825 |
| Visibility | 7.4 | 7.7 | 678 |
| Suspension | 2 | 7.2 | 181 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 9,224 (initial tests of this build year) · Method: failure items grouped by DVSA's top-level defect groups, per 100 initial tests; groups with 30+ items · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV
How does 2011 compare with the years around it?
Among the 22 published build years of the Lexus IS, 2011 ranks 16 (1 = fails least for its age). 2010: index 98.1. 2012: index 93.9.
| Build year | Index (100 = normal) | 95% interval | Verdict | Tests |
|---|---|---|---|---|
| 1999 | 100.7 | 93.1–108.3 | no different (rough estimate) | 1,800 |
| 2000 | 111.2 | 105.6–116.9 | worse (rough estimate) | 3,615 |
| 2001 | 102.4 | 98.4–106.3 | no different | 6,950 |
| 2002 | 103.3 | 100.0–106.7 | no different | 9,860 |
| 2003 | 103.9 | 100.7–107.1 | worse | 11,302 |
| 2004 | 106.2 | 103.0–109.4 | worse | 12,066 |
| 2005 | 99.3 | 96.2–102.5 | no different | 11,833 |
| 2006 | 98.8 | 96.5–101.1 | no different | 23,659 |
| 2007 | 98.5 | 96.4–100.7 | no different | 28,132 |
| 2008 | 99.8 | 97.1–102.4 | no different | 20,660 |
| 2009 | 97.4 | 94.4–100.4 | no different | 16,669 |
| 2010 | 98.1 | 94.6–101.5 | no different | 14,447 |
| 2011 | 101.6 | 97.0–106.2 | no different | 9,224 |
| 2012 | 93.9 | 87.7–100.0 | no different | 5,394 |
| 2013 | 91.3 | 86.6–96.0 | better | 10,281 |
| 2014 | 98.3 | 94.6–102.0 | no different | 19,406 |
| 2015 | 96.1 | 92.0–100.1 | no different | 17,439 |
| 2016 | 99.5 | 94.4–104.5 | no different | 12,391 |
| 2017 | 91.8 | 85.6–97.9 | better | 8,277 |
| 2018 | 85.8 | 78.7–93.0 | better | 5,903 |
| 2019 | 103.6 | 93.4–113.8 | no different (rough estimate) | 3,635 |
| 2020 | 101.3 | 83.0–119.6 | no different (rough estimate) | 1,157 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 254,100 (initial tests) · Method: observed failures against those expected for the same model at the same ages, test-year level adjusted; verdict follows the printed one-decimal bound · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV
How to cite this page
MOT Risk Index (2026). Lexus IS 2011 MOT statistics (data release dvsa-2024-v2; full dataset motriskindex-families-2024-v5, DOI 10.5281/zenodo.22975051), updated 30 September 2026. motriskindex.co.uk/cars/lexus-is/2011/
How every figure is calculated: methodology. Age, test year and build year are tied together (age = test year − build year), so the test-year level is taken as observed, not estimated.
Other pages for this model
Lexus IS 1999 · Lexus IS 2000 · Lexus IS 2001 · Lexus IS 2002 · Lexus IS 2003 · Lexus IS 2004 · Lexus IS 2005 · Lexus IS 2006 · Lexus IS 2007 · Lexus IS 2008 · Lexus IS 2009 · Lexus IS 2010 · Lexus IS 2012 · Lexus IS 2013 · Lexus IS 2014 · Lexus IS 2015 · Lexus IS 2016 · Lexus IS 2017 · Lexus IS 2018 · Lexus IS 2019 · Lexus IS 2020 · Lexus IS in Finland · Lexus IS by postcode area · Lexus IS body, chassis and structure failures · Lexus IS brakes failures · Lexus IS vehicle identification failures · Lexus IS lamps, reflectors and electrics failures · Lexus IS noise, emissions and leaks failures · Lexus IS road wheels failures · Lexus IS seat belts and airbags failures · Lexus IS steering failures · Lexus IS suspension failures · Lexus IS tyres failures · Lexus IS visibility failures