A major fault on the UK driving test is a serious or dangerous fault, and just one of them ends the test in a fail. The DVSA uses three grades: a driving fault (a “minor”), a serious fault (something potentially dangerous), and a dangerous fault (actual danger to you, the examiner, the public or property). You can make up to 15 driving faults and still pass, but no serious or dangerous faults at all.
Key facts
- You pass with no more than 15 minor driving faults and zero serious or dangerous faults.
- A single serious or dangerous fault ends the test in an automatic fail, regardless of the rest of the drive.
- DVSA data shows the top reason for failing is not making effective observations at junctions.
- The DVSA’s top fault areas nationally are junction observation, mirror use, moving off safely and positioning when turning right.
- A small roll of a few inches on a hill start is usually marked as a minor fault rather than a serious one.
That is the whole game, and it is why “majors” frighten learners so much. You can drive beautifully for 38 minutes and one lapse at a junction wipes it out. The good news, after years in the passenger seat, is that majors are not random. They cluster around the same handful of moments, they nearly always come back to observation or control, and every one of them can be drilled out before you sit the real thing. Below is the full categorised list of what gets marked as a serious or dangerous fault, exactly what triggers each, and the habit that stops it.
What counts as a major fault on the driving test?
A major fault is any fault the examiner grades serious or dangerous on your driver’s record. According to GOV.UK, a serious fault is “something potentially dangerous” and a dangerous fault “involves actual danger to you, the examiner, the public or property”. Either one is an automatic fail. There is no allowance, no quota, and no way to recover the test once one is marked.
The word “major” is what learners and instructors say day to day. It is not a separate box on the sheet: it is shorthand for the two failing grades. So when someone asks for the “list of major faults”, they mean the errors that get ticked as serious or dangerous rather than as an ordinary driving fault.
It helps to see the three grades side by side.
| Fault grade | What it means (DVSA) | Effect on your test |
|---|---|---|
| Driving fault (“minor”) | Not potentially dangerous, but could become serious if repeated | Up to 15 allowed and you still pass |
| Serious fault (“major”) | Something potentially dangerous | One = automatic fail |
| Dangerous fault (“major”) | Actual danger to you, the examiner, the public or property | One = automatic fail |
Source: GOV.UK, “Driving test: faults and result”. The examiner records these on the driver’s record (the DL25) as you go.
The full list of major faults, by category
Examiners assess your driving in set areas, and a slip in any of them can be graded serious or dangerous depending on the risk it creates. Here is the categorised list of what triggers a major, grouped the way examiners actually think about it. The same action can be a minor or a major: the difference is almost always whether it affected another road user or showed a real loss of safety and control.
Observation faults (the biggest single group)
- Emerging from a junction without effective observation, so approaching traffic has to slow, stop or swerve.
- Moving off from the side of the road without a blind-spot check, pulling out into a passing car or cyclist.
- Changing lanes or leaving a roundabout without a mirror check, forcing another driver to react.
- Turning right across a junction without watching for oncoming vehicles.
Observation is where most tests are lost. The DVSA’s own data (see the top-ten table below) puts junction observation and mirror use at the very top. The fix is not “look more”, it is looking at the right moment: mirrors before you signal, a proper look into the gap before you commit, and a life-saver glance over the shoulder before you move off or change lane.
Control faults
- Losing steering control, understeering or oversteering, or crossing hands so badly the car wanders.
- Stalling in a position that blocks traffic or on a level crossing.
- Rolling back significantly on a hill start so you endanger a vehicle or pedestrian behind.
- Selecting the wrong gear in a way that affects control, such as reverse instead of first when moving off.
- Mounting or striking the kerb during a manoeuvre, or hitting an object while reversing.
A single clipped kerb on a normal bend is usually a minor. Riding up the kerb, or clouting it during the parking manoeuvre, becomes a serious fault because control was lost.
Junction and positioning faults
- Poor lane discipline: straddling two lanes on a dual carriageway, or cutting across lanes at a roundabout.
- Positioning too far forward at a junction so you obstruct crossing traffic.
- Being in the wrong lane approaching a roundabout and forcing a late, unsafe change.
- Incorrect positioning turning right, ending up on the wrong side of the road.
Speed and progress faults
- Exceeding the speed limit, especially in a built-up 30mph zone, even briefly.
- Driving too fast for the conditions in rain, fog or a busy street.
- The opposite: undue hesitation, sitting at a clear junction and missing repeated safe gaps, or crawling so far below the limit that you hold up and frustrate other drivers.
Progress is a genuine fault, not just nerves. Being over-cautious can be marked as seriously as being reckless, because a driver who will not go when it is safe becomes a hazard themselves.
Response to signs, signals and road users
- Failing to stop at a red light, or crossing a stop line.
- Ignoring a mandatory stop or give-way sign.
- Driving into a prohibited area, such as a bus lane in operation or the wrong way down a one-way street.
- Failing to give way to a pedestrian already on a zebra or parallel crossing.
- Not responding to a Stop sign, keep-left arrow or other order.
Manoeuvre and pedestrian-crossing faults
- Reversing into another vehicle, the kerb or the pavement during a parking exercise.
- Failing to complete the emergency stop promptly and under control when asked.
- Blocking a crossing or a junction while completing a manoeuvre.
None of these is exotic. They are ordinary driving moments where the risk tipped from “not ideal” to “potentially dangerous”, and that is the line the examiner is watching.
The DVSA’s official top 10 fault areas
The clearest way to know where majors come from is the DVSA’s own published list. These are the ten most common reasons people fail the practical test in Great Britain, in the department’s stated order. Learn this table and you have mapped almost every serious fault that gets marked.
| Rank | DVSA fault area | What it looks like on the road |
|---|---|---|
| 1 | Not making effective observations at junctions | Emerging without a proper look; making traffic slow or stop |
| 2 | Not using mirrors correctly when changing direction | No mirror check before a lane change, turn or leaving a roundabout |
| 3 | Not moving off safely | Pulling away with no blind-spot check |
| 4 | Incorrect positioning when turning right at junctions | Cutting the corner or sitting on the wrong side |
| 5 | Not responding appropriately to traffic lights | Going through on red, or stopping over the line |
| 6 | Not having proper control of the steering | Wandering, hitting the kerb, crossing hands badly |
| 7 | Not responding correctly to road markings | Ignoring lane arrows, give-way lines, hatching |
| 8 | Not responding correctly to traffic signs | Missing a stop, no-entry or mandatory sign |
| 9 | Poor positioning on the road during normal driving | Too close to the kerb or the centre line |
| 10 | Not driving at a safe and reasonable speed | Too fast for the limit or conditions, or too slow |
Source: DVSA / GOV.UK, “Top 10 reasons for failing the driving test in Great Britain”. Six of the ten are observation, mirror or positioning issues, which is why instructors drill the Mirror, Signal, Manoeuvre (MSM) routine relentlessly. It is the single habit that protects you against most of this list.
Serious fault or dangerous fault: what’s the difference?
Both fail you, but they are marked differently. A serious fault is potentially dangerous: you did something that could have caused a problem, even if nothing actually happened, such as changing lanes without a mirror check when the road behind happened to be clear. A dangerous fault means real danger occurred, usually where another road user had to brake or swerve, or where the examiner had to touch the dual controls or the wheel.
The practical tell is examiner intervention. If the examiner has to physically step in, that is almost certainly a dangerous fault and the test is over there and then. A serious fault often lets the test continue to the end, because the examiner still has to assess the rest of your drive, even though the result is already decided. If you want the fuller side-by-side, the three grades and how the same manoeuvre gets marked at each level are worth studying before test day.
How to stop major faults before your test
Every major on that list traces back to a routine that was not yet automatic under pressure. You do not fix them by trying harder on the day. You fix them by making the safe action a reflex in the weeks before, so nerves cannot switch it off. Here is what actually moves the needle.
- Make MSM non-negotiable. Mirror, Signal, Manoeuvre before every change of speed or direction. Six of the DVSA top ten disappear when this is genuine habit rather than something you remember.
- Fix the moving-off blind spot. The over-the-shoulder look before you pull away is the most-forgotten check on the whole test. Do it every single time you set off, even on your driveway, until it is thoughtless.
- Drill the weak junction, not the easy one. Ask your instructor which junction type keeps catching you (usually an emerging right turn onto a busy road) and repeat it until the observation happens without prompting.
- Get your speed reading sharp. Know the limit-change clues, watch for the repeater signs, and practise easing back below 30mph early so you are never caught over the limit in a built-up zone.
- Rehearse a recovery. Stall or clip a kerb? Handbrake on, calm, restart, carry on. Panic after a minor is what turns it into a major on the next junction.
This is exactly the kind of work an intensive course is built for, because you spend concentrated hours ironing out the same fault back to back instead of losing the habit between weekly lessons. If you are close to test standard and just need those routines drilled until they hold under pressure, a short focused block like our Provisional intensive course is designed for that final polish. It is worth reading how our intensive courses work so you know what a fault-focused week actually involves. Our job is to get you genuinely test-ready, not to book the test for you: since 12 May 2026, learners book the practical test themselves on GOV.UK. And if a test has already gone wrong, our guide to what happens if you fail your driving test covers the 2026 rebooking rules and how to turn your fault sheet into a retake plan.
Frequently Asked Questions
What are major faults in a UK driving test?
Major faults are the serious and dangerous faults the examiner marks on your driver’s record. Per GOV.UK, a serious fault is something potentially dangerous and a dangerous fault involves actual danger to you, the examiner, the public or property. The most common triggers are poor observation at junctions, missing a mirror check when changing direction, unsafe moving off, incorrect positioning and speed. Any single serious or dangerous fault is an automatic fail.
What is the number one reason for failing a driving test?
According to DVSA data, the top reason is not making effective observations at junctions, meaning emerging into a new road or onto a roundabout without a proper look, so another vehicle has to slow, stop or change course. Junction observation, mirror use when changing direction and moving off safely are the top three fault areas nationally.
How many major faults are allowed on a driving test?
None. GOV.UK states you pass if you make no more than 15 driving faults (“minors”) and no serious or dangerous faults (“majors”). A single serious or dangerous fault fails the test, regardless of how well the rest of the drive went. If you want the detail on the minors side, see our guide on how many minor faults you can get.
What counts as an instant fail on the driving test?
An “instant fail” is any dangerous fault, and any serious fault. In practice the clearest instant fails are: going through a red light, failing to give way to a pedestrian on a crossing, emerging into the path of oncoming traffic, or any moment where the examiner has to use the dual controls or grab the wheel. All of the errors in the categorised list above can be marked at this level if they create real danger.
Is rolling back on a hill start a fail?
Not automatically. A small roll of a few inches while you find the bite point is usually marked as a driving fault (a minor), provided you keep control and nothing is behind you. It becomes a serious fault if you roll back significantly, lose control, or endanger a vehicle or pedestrian behind you. The safe habit is firm handbrake use and getting the clutch to biting point before you release, so the car holds still.
Can I fail if I can’t parallel park?
You will not fail simply for not being perfect. Small corrections and a shunt or two while you straighten up are minors, as long as you finish safely and keep observing. You fail the manoeuvre only if you lose control or observation: mounting the kerb, ending up dangerously positioned, or reversing without watching for pedestrians and traffic. Effective all-round observation matters more to the examiner than a textbook-neat finish.
What are the most common major faults?
Observation and mirror faults dominate. The DVSA’s top four fault areas nationally are junction observation, mirrors when changing direction, moving off safely and positioning when turning right. Master the Mirror, Signal, Manoeuvre routine and the blind-spot check when moving off, and you remove the most likely causes of a serious fault. The full picture is in our guide to the most common reasons people fail the driving test, and the sat-nav and route section is covered in what independent driving involves.