# Insufficient pressure/vacuum assistance for less than two brake applications after warning device has operated (or gauge shows an unsafe reading) — Vehicle inspection defect categories: MOT major, minor and dangerous verdicts

For Insufficient pressure/vacuum assistance for less than two brake applications after warning device has operated (or gauge shows an unsafe reading), category is Dangerous; inspection item number is 1.1.3; defect reference is (a)(ii); inspection item is Air and vacuum systems; authority is DVSA MOT (cars, vans and passenger vehicles, classes 3, 4, 5, 7), recorded from its source on 2026-08-06.

- **Defect:** Insufficient pressure/vacuum assistance for less than two brake applications after warning device has operated (or gauge shows an unsafe reading) _(verified: appears in the quote below)_
- **Category:** Dangerous _(verified: appears in the quote below)_
- **Inspection item number:** 1.1.3
- **Defect reference:** (a)(ii) _(verified: appears in the quote below)_
- **Inspection item:** Air and vacuum systems
- **Authority:** DVSA MOT (cars, vans and passenger vehicles, classes 3, 4, 5, 7) _(our reading, not quoted from the source)_

## What the source says

> (a)(ii) | Insufficient pressure/vacuum assistance for less than two brake applications after warning device has operated (or gauge shows an unsafe reading) | Dangerous

## Source

- https://www.gov.uk/guidance/mot-inspection-manual-for-private-passenger-and-light-commercial-vehicles/1-brakes

Last verified: 2026-08-06. Review by: 2027-02-02.
Part of [Vehicle inspection defect categories: MOT major, minor and dangerous verdicts](https://referencesource.org/vehicle-inspection-defect-categories/).