Vauxhall Insignia: lighting & signalling MOT failures
Lighting & signalling was recorded as a failure area in 8.3% of Vauxhall Insignia MOT tests — 109,305 tests out of 1,312,179. It shows up most on 2011 and 2012 cars.
Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair cost: £10–£150 (rough UK ballpark, not a quote).
Lighting & signalling failures by year
| Model year | Tests | Fail rate |
|---|---|---|
| 2008 | 895 | 9.7% |
| 2009 | 78,519 | 10.0% |
| 2010 | 104,631 | 11.3% |
| 2011 | 160,829 | 12.3% |
| 2012 | 136,280 | 12.5% |
| 2013 | 136,639 | 9.7% |
| 2014 | 163,297 | 7.5% |
| 2015 | 180,686 | 6.4% |
| 2016 | 139,489 | 6.0% |
| 2017 | 92,110 | 4.1% |
| 2018 | 73,782 | 3.0% |
| 2019 | 37,680 | 2.9% |
| 2020 | 4,526 | 2.1% |
| 2021 | 2,093 | 1.7% |
| 2022 | 716 | 1.1% |
Methodology & source. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.