Your in depth guide to driving faults
What they are - The full DVSA explanation
How to spot them
How to fix them
How to teach to prevent them
Qualified ADIs and recently retired DVSA driving examiners, Dave and Susie created Ready To Pass to offer a truly unique driver training experience.
With 18+ years as examiners and 16+ years as ADIs, they know driving faults inside out — including exactly what DVSA examiners look for.
To share this knowledge, they run workshops to help ADIs deepen their understanding of driving faults.
To support these workshops, they’ve also created this detailed online guide that serves as a permanent reference throughout your driving-fault learning journey.
The guide is designed for quick, ad-hoc use whenever you need it.
This Driving Fault Guide is designed to strengthen your understanding of driving faults — not to replicate how examiners mark them.
Since leaving the DVSA, we’ve seen first-hand how a deep knowledge of driving faults transforms the way you teach. By focusing on preventing faults rather than reacting to them, your pupils naturally develop into safe, confident drivers who perform closer to a DVSA standard every day.
And when pupils don’t pick up faults…
• they don’t accumulate serious or dangerous faults
• they avoid ETAs
• and your driving test results improve dramatically
Our own first-time pass rates are proof of this approach in action.
Strengthening your driving-fault knowledge will change the way you teach — and your test outcomes will change with it. Better results mean fewer issues, fewer test failures, and a far lower likelihood of facing a DVSA standards check.
Use this guide regularly, and watch your pupils’ performance — and your professional confidence — grow
To recognise driving faults in your pupils, you first need a deep, personal understanding of them.
And that starts with your own everyday driving.
You’ve already proved you can drive to a high standard—you passed your Part 2.
But ask yourself honestly: Do you still drive to that standard every single day?
The more consistently you aim for the highest possible standard in your own driving—minimising faults, refining routines, and staying fully aware—the sharper your ability becomes to spot faults in others.
When you drive with a “fault-spotting mindset,” you naturally start to notice subtle cues:
the hesitation before a poor decision…
the hand movement that hints at clutch control trouble…
the slight lane drift that predicts a future steering fault.
Developing this level of awareness transforms your teaching.
You stop just correcting faults—and start anticipating them.
You help learners prevent issues before they happen.
And your pupils benefit from cleaner, safer, more test-ready driving.
It all begins with reflecting on your own driving, every day
Use of mirrors – Signals
Use of mirrors – Change Speed
Use of mirrors – Change Direction
Junctions – Approach Speed
Junctions – Observation
Junctions – Position Left
Junctions – Position Right
Junctions – Cutting Corners
Judgement – Overtaking
Judgement – Meeting
Judgement – Crossing Traffic
Position – Normal Driving
Position – Lane Discipline
No Grouping
Signs & Signals
Response to – Traffic Signs
Response to – Road Markings
Response to – Traffic Lights
Response to – Traffic Controllers
Response to – Other Road Users
Precautions & Show Me / Tell Me
Manoeuvres
Reverse Bay – Control
Reverse Bay – Observation
Forward Bay Park – Control
Forward Bay Park – Observation
Reverse Park Rd – Control
Reverse Park Rd – Observation
Reverse Right – Control
Reverse Right – Observation
Accelerator
How to Spot it
What Causes It
How to Fix It
How to Prevent it
Clutch
How to Spot it
What Causes It
How to Fix It
How to Prevent it
Gears
How to Spot it
What Causes It
How to Fix It
How to Prevent it
Footbrake
How to Spot it
What Causes It
How to Fix It
How to Prevent it
Handbrake
How to Spot it
What Causes It
How to Fix It
How to Prevent it
Steering –No 6 in the DVSA Top 10 Reasons For Failing The Test – Not having proper control of the steering
How to Spot it
What Causes It
How to Fix It
How to Prevent it
No 6 in the DVSA Top 10 Reasons For Failing The Test – Not having proper control of the steering
What you must be able to do You must be able to steer the car as smoothly as possible.<br> You must steer at the appropriate time, as steering too early or late can cause the car to hit the kerb or swing out towards another road user.
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Repeatedly not steering enough or steering late on the approach to junctions when turning left
Throughout the test, when you turn left, you repeatedly understeer, not following the shape of the kerb. This means there’s not enough space for vehicles turning right to fit alongside your car.
Not steering enough when going around a bend
When you drive around a bend at an appropriate speed, you do not apply enough steering. This causes both passenger-side wheels to mount the pavement.
Steering late when turning right into a minor road
When you turn right into a minor road, you steer late and not enough. This causes a ‘swan neck’ effect, and you drive fully onto the wrong side of the new road to correct your position.
Repeatedly mounting the pavement when pulling up on the left
Throughout the test, when you pull up on the left-hand side of the road, you mount the pavement with both passenger-side wheels before the car returns to the road.
Steering late when moving out to pass parked vehicles
When you approach parked vehicles, you steer late and get too close to the parked vehicles.
Precautions
How to Spot it
What Causes It
How to Fix It
How to Prevent it
The Controls Section
The below table shows all of the fault descriptions taken from the DVSA’s ‘A guide to the location of driving faults’
Accelerator
| Clutch
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Gears
| Footbrake
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Handbrake
| Steering
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Precautions
| Ancillary Controls
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Control driving faults can lead to or be the reason why many other driving faults occur, we’ve linked faults to reasons in the table below.
Accelerator | · Move Off Safety · Move Off Control · Approach Speed · Observation · Pos Turning Right · Pos Turning Left · Cutting Corners | · Judgement · Crossing The Path · Following Distance · Speed · Progress · Hesitation · Manoeuvres |
Clutch | · Move Off Safety · Move Off Control · Approach Speed · Observation · Turning Right | · Turning Left · Cutting Corners · Judgement · Crossing The Path · Hesitation · Manoeuvres |
Gears | · Move Off Control · Approach Speed · Observation | · Hesitation · Manoeuvres |
Footbrake | · Approach Speed · Observation · Pos Turning Right · Pos Turning Left | · Cutting Corners · Judgement · Following Distance |
Handbrake | · Move Off Control · Hesitation | · Manoeuvres |
Steering | · Lane Discipline · Pos Normal Stops · Manoeuvres | · Pos Normal Driving · Overtaking |
Move Off – Safety
How to Spot it
What Causes It
How to Fix It
How to Prevent it
No 3 in the DVSA Top 10 Reasons For Failing The Test – Not moving off safely
What you must be able to do You must be able to move off safely while making the correct observations:
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Moving off from behind a parked vehicle into the path of an approaching vehicle
When you move off from behind a parked vehicle, you check your mirrors and blind spot, but still move off into the path of an approaching vehicle. This causes the vehicle to significantly slow down.
Repeatedly moving off from the side of the road with no blind spot checks
Throughout the test, you repeatedly move off from the side of the road with no blind spot checks in situations where they’re needed.
Pulling off from the right-hand side of the road, causing an oncoming vehicle to slow or stop
After the ‘pull up on the right’ exercise, you move off with either an oncoming vehicle or a closely approaching vehicle from behind. This causes the vehicle to severely slow down or stop.
Not making any rear observations when moving off following an emergency stop
After you do the emergency stop exercise, you move off without making any rear observations, having been stationary in the middle of the lane for some time.
Move Off – Control
How to Spot it
What Causes It
How to Fix It
How to Prevent it
Move Off Section
The below table shows all of the fault descriptions taken from the DVSA’s ‘A guide to the location of driving faults’
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Moving Off either Safety or Control are the foundations of confident driving as you know weak ‘Controls’ ability can and often does lead to driving faults, serious faults & dangerous faults on test.
Try new techniques and ideas, things that you do without realising, identify them and include them in your training. You’ll enjoy passing on things that you personally do when driving, your pupils will realise how personal your training is and enjoy it that bit more.
Use of Mirrors (Well Before Signalling )
How to Spot it
What Causes It
How to Fix It
How to Prevent it
Use of Mirrors (Well Before Changing Direction)
How to Spot it
What Causes it
How to Fix it
How to Prevent it
No 2 in the DVSA Top 10 Reasons For Failing Test – Not using mirrors correctly when changing direction
What you must be able to do You must always:
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Not using mirrors when exiting a roundabout
You need to take the right-hand exit on a large multi-lane roundabout. When you move from the right-hand lane to the left-hand lane to exit the roundabout, you make no rear or passenger-side observations or mirror checks.
Causing a vehicle to slow when changing lanes on a dual carriageway
When you’re on a dual carriageway, you check your mirrors when changing lanes, but there’s a vehicle approaching in the lane you want to move into. You start to change lanes anyway, causing the approaching vehicle to slow down.
Trying to change lane on a roundabout when a vehicle is directly alongside
When you’re driving on a roundabout, you try to change lanes when there’s a vehicle directly alongside you. The driving examiner has to take control of the steering wheel to stop a collision.
Exiting a roundabout without checking mirrors
When you exit a roundabout, you do not check your mirrors and cut across the path of a closely following vehicle to the left-hand side of the car.
Use of Mirrors (Well Before Stopping)
How to Spot it
What Causes It
How to Fix It
How to Prevent it
The Mirrors Section
The below table shows all of the fault descriptions taken from the DVSA’s ‘A guide to the location of driving faults’
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Signals – Where Necessary
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Signals – Correctly
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Signals – Properly Timed
How to Spot it
What Causes it
How to Fix it
How to Prevent it
The Signals Section
The below table shows all of the fault descriptions taken from the DVSA’s ‘A guide to the location of driving faults’
Signals – Where Necessary
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Signals – Correctly
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Signals – Properly Timed
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Junctions – Approach Speed
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Junctions – Observation
How to Spot it
What Causes it
How to Fix it
How to Prevent it
No 1 in the DVSA Top 10 Reasons For Failing – Not making effective observations at junctions
What you must be able to do You must always:
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Failing to judge the speed of an approaching vehicle
When you turn either left or right from a minor road, you make observations but fail to judge the speed of the approaching vehicle. You move off, forcing the vehicle to slow significantly.
Entering a roundabout with a vehicle approaching from the right
When you approach a roundabout, there’s a vehicle approaching from the right. You still enter the roundabout, causing the vehicle approaching to slow down.
Making no effective observations at all
When you emerge from a junction, you make no effective observations at all. This causes:
Making no observations when joining a dual carriageway from a slip road
When you’re on a slip road to join a dual carriageway, you enter the dual carriageway without making any observations, or you do not give way to the traffic on the main carriageway.
Going straight ahead at a crossroads
When you approach a crossroads, you do not recognise that it’s a junction. You emerge and cross the crossroads without making any observations to the right or left.
Looking too late
When you emerge from a junction, you look too late (either left or right) for the observations to be effective, as you’re already partly into the next road.
Repeatedly not looking left when turning left
Throughout the test, when you turn left from a minor road into a busier road, you do not make any effective observations to the left. This means you’re unaware of any parked vehicles, obstructions or other possible hazards.
Junctions – Turning Right
How to Spot it
What Causes it
How to Fix it
How to Prevent it
No 4 in the DVSA Top 10 Reasons For Failing The Test Incorrect positioning when turning right at junctions
What you must be able to do You must be able to position the car as close to the centre of the road as is safe.
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Positioning in the left-hand lane when turning right at a roundabout
When you need to turn right at a roundabout, you use the left-hand lane when it’s not appropriate, and continue around the roundabout in that lane. This causes confusion to several following vehicles.
Obstructing traffic when you wait to turn right
When you want to turn right into a minor road, you position your car too far to the left while you wait for oncoming traffic to clear. This causes severe delays to the following traffic on a road where it was wide enough for the traffic to pass you on the left.
When you want to turn right at the end of the road, you incorrectly position to the left
When you reach the end of a wide road with no road markings, you position in the left of your lane when you’re actually turning right.
Junctions – Turning Left
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Junctions – Cutting Corners
How to Spot it
What Causes it
How to Fix it
How to Prevent it
The Junctions Section
The below table shows all of the fault descriptions taken from the DVSA’s ‘A guide to the location of driving faults’
Junctions – Approach Speed
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Junctions – Observation
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Junctions – Turning Right
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Junctions – Turning Left
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Junctions – Cutting Corners
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Judgement – Overtaking
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Judgement – Meeting Traffic
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Judgement – Crossing Traffic
How to Spot it
What Causes it
How to Fix it
How to Prevent it
The Judgement Section
The below table shows all of the fault descriptions taken from the DVSA’s ‘A guide to the location of driving faults’
Judgement – Overtaking
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Judgement – Meeting Traffic
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Judgement – Crossing Traffic
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Positioning – Normal Driving
How to Spot it
What Causes it
How to Fix it
How to Prevent it
No 9 in the DVSA Top 10 Reasons For Failing The Test – Poor positioning on the road during normal driving
What you must be able to do You must be able to:
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Repeatedly driving too close to the kerb or centre of the road
Throughout the test, you repeatedly drive too close to either:
Unnecessarily driving in the right-hand lane of a dual carriageway
When you drive on a dual carriageway, you unnecessarily drive in the right-hand lane for a considerable length of time.
Cutting across the normal road position when you go ahead at a roundabout with no lane markings
When you go ahead at a roundabout with no lane markings, you ‘straight-line’ the roundabout with no consideration for following vehicles. ‘Straight-lining’ means you drive in a straight line in the road, rather than following the bend of the roundabout.
Positioning – Lane Discipline
How to Spot it
What Causes it
How to Fix it
How to Prevent it
The Position Section
The below table shows all of the fault descriptions taken from the DVSA’s ‘A guide to the location of driving faults’
Positioning – Normal Driving
| Positioning – Lane Discipline
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Pedestrian Crossings
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Position/Normal Stops
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Awareness and Planning
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Clearance to Obstructions
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Following Distance
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Use of Speed
How to Spot it
What Causes it
How to Fix it
How to Prevent it
No 10 in the DVSA Top 10 Reasons For Failing The Test Not driving at a safe and reasonable speed
What you must be able to do You must be able to show you can drive at a safe and reasonable speed when appropriate. You must:
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Driving over the speed limit
Example 1
When driving along a road with a speed limit of 40mph which then drops to 30mph, you drive at more than 30mph for an unnecessary amount of time after the limit has dropped.
Example 2
When driving on a road with a temporary speed limit because of roadworks, you drive faster than the temporary speed limit.
Not adjusting your speed to the road conditions
Example 1
When driving down a busy high street, you do not lower your speed accordingly.
Example 2
When driving in a bad weather (such as heavy rain or fog), you do not lower your speed accordingly.
Example 3
When driving on a country road where the national speed limit applies, you approach a sharp bend too fast and try to drive around it. This results in the loss of control of the car.
Progress – Appropriate Speed
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Progress – Avoiding Undue Hesitation
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Response to Signs and Signals – Traffic Signs
How to Spot it
What Causes it
How to Fix it
How to Prevent it
No 8 in the DVSA Top 10 Reasons For Failing The Test – Not responding correctly to traffic signs
What you must be able to do You must be able to understand and react correctly to all traffic signs.
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Going to the wrong side of a ‘keep left’ sign
You go to the wrong side of a ‘keep left’ sign in the road.
Ignoring a ‘stop’ or ‘no entry’ sign
You ignore either:
Driving in a bus lane
You drive in a bus lane when a sign shows that you cannot use it at that time.
Choosing the wrong lane at a roundabout with clear signage
When you approach a roundabout, you get into the wrong lane when a sign clearly shows which lane you should go in. You then go around the roundabout in the wrong lane.
Acting late or not at all to speed limit changes
You either act far too late or not at all when a clearly visible sign shows a change of speed limit.
Response to Signs and Signals – Road Markings
How to Spot it
What Causes it
How to Fix it
How to Prevent it
No 7 in the DVSA Top 10 Reasons For Failings Not responding correctly to road markings
What you must be able to do You must be able to understand and react correctly to all road markings.
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Not following direction arrows on the road
When you’re driving in a lane that is clearly marked to only be used to turn left, you turn to the right.
There are 3 lanes ahead of you. The left lane has an arrow pointing left to the city. The centre lane has an arrow pointing straight ahead for the A3. The right lane has an arrow pointing right to York Street.
You are being asked to follow directions to the city, but you drive into the centre lane, and still attempt to turn left.
Straddling lanes on a roundabout
When you approach a roundabout, there are clear road markings showing the different lanes. You drive the car so that it’s straddling 2 different lanes.
Crossing double white lines where the line nearer to you is solid
When driving on a road with double white lines marking the centre, and the line nearer to you is solid, you unnecessarily cross it.
Ignoring a box junction
When you approach a box junction (these have criss-cross yellow lines painted on the road), you enter it either partially or fully when the exit is not clear.
Not following road markings at mini-roundabouts
When you’re approaching and driving around a mini-roundabout, you do not steer correctly because you do not follow the road markings.
Response to Signs and Signals – Traffic Lights
How to Spot it
What Causes it
How to Fix it
How to Prevent it
No 5 in the DVSA Top 10 Reasons For Failing The Test – Not responding appropriately to traffic lights
What you must be able to do You must act correctly at traffic lights, checking that the road is clear before you proceed when the green light shows. |
Failing to react to red traffic light
When a red light is clearly showing, you attempt to proceed through the junction.
Stopping after the first white line when there are advanced stop lines for cyclists
At a signal-controlled junction with an advanced stop line to allow cyclists to be positioned ahead of other traffic, you stop beyond the first white line in the area for cyclists.
Not progressing when you’re waiting to turn right at a junction and it’s safe to proceed
When you need to turn right at a junction, you continue to wait in the middle of the junction when the repeater light has turned red and the oncoming traffic has stopped. This causes you to completely block the junction controlled by traffic lights.
Not going ahead when a green light is showing and the junction ahead is clear
When a green light or a green filter light is clearly visible, you continue to wait at a clear junction. You make no attempt to proceed.
Going ahead when a green light is showing but the junction is not clear
When the traffic lights are green, you go ahead, even though the junction is not clear. This then means you’re then blocking the junction when the traffic lights change.
Response to Signs and Signals – Traffic Controller
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Response to Signs and Signals – Other Road Users
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Manoeuvres
Reverse Right (Pull Up on the Right) – Control
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Manoeuvres
Reverse Right – Observations
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Manoeuvres
Reverse Park – Control
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Manoeuvres
Reverse Park – Observation
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Manoeuvres
Forward Park – Control
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Manoeuvres
Forward Park – Observation
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Reverse Bay Park – Control
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Reverse Bay Park – Observation
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Vehicle Checks (‘Show Me / Tell Me’)
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Controlled Stop
Fault examples:
How to Spot it
What Causes it
How to Fix it
How to Prevent it
Ancillary Controls
How to Spot it
What Causes It
How to Fix It
How to Prevent it
Kiara Foster
Head of Content
Dave
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