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RSA Official Test Data

Top 10 Reasons for
Failing the Driving Test

These are the exact faults identified by the Road Safety Authority as the most common causes of test failure in Ireland. Understanding what each one means — and how your examiner assesses it — is the single most effective way to prepare.

~50%
of candidates fail their first test in Ireland
10 faults
account for the vast majority of all test failures
Avoidable
every fault below can be corrected with proper practice
Faults read
0 / 10

The RSA examiner uses a sheet with three grade columns. Grade 1 (green) is a minor technique slip where nobody else was affected — the column is on the sheet but examiners rarely mark it. Grade 2 (blue) is a real mistake — another road user noticed but wasn't put in danger; these accumulate and can fail you. Grade 3 (pink) is a dangerous or serious fault that causes immediate failure — the test ends at that point.

Grade 1 — Green

Minor technique slip. Nobody else affected. The column exists on the sheet but examiners rarely record it.

Grade 2 — Blue

Real mistake, no danger. Accumulates — 4 in same line, 6 in same box, or more than 8 total = fail.

Grade 3 — Pink

Dangerous / serious. Someone had to react because of you. One mark = instant fail.

The ten faults listed here recur test after test — not because they're difficult skills, but because candidates underestimate how precisely the examiner observes each manoeuvre. Every item below is something your instructor should be practising with you on every lesson, not just before your test date.

Click each fault to read the full examiner standard, required actions, and a practical tip from our instructors.

What the examiner requires

The candidate must carry out full, effective observation before committing to entering any new road. This means physically turning your head and eyes — not just a brief glance — to confirm it is safe to proceed.

  • Make effective observations in all directions before moving into a new road
  • Confirm it is completely safe before proceeding — not just clear at a glance
  • Look right, left, and right again at every T-junction and crossroads
  • Check for cyclists and pedestrians as well as other vehicles

Examiner view: An ineffective observation at a junction is one of the most likely faults to be graded as a Grade 3 (dangerous) if another vehicle has to take action. A cursory glance is not sufficient — the examiner expects to see a deliberate, unhurried look in every direction.

Instructor Tip

Before committing to the junction, come to a complete pause and say to yourself: "Right — left — right again — clear?" This deliberate internal routine prevents the rushed half-glance that examiners pick up immediately. Make your observation obvious: move your head visibly, don't just flick your eyes.

What the examiner requires

Every change of direction or speed must be preceded by a Mirror–Signal–Manoeuvre (MSM) routine. The examiner expects to see all three mirrors used, not just the interior mirror.

  • Make full and effective use of all mirrors — interior, left, and right door mirrors
  • Check mirrors carefully before signalling, changing direction, or changing speed
  • Apply the Mirror–Signal–Manoeuvre routine in strict sequence, every time
  • Always check the blind spot over your shoulder before moving left or right

Examiner view: The examiner distinguishes between a glance and a genuine check. Moving your head slightly in the direction of the mirror is what they look for — not a subtle eye movement. Signalling before checking mirrors is a clear fault regardless of outcome.

Instructor Tip

Build a habit of checking mirrors every 5–8 seconds during normal driving and always before any manoeuvre. When turning left, check interior → left door mirror → signal → shoulder check. When turning right, check interior → right door mirror → signal → proceed. The sequence must be automatic — don't improvise it on test day.

What the examiner requires

The candidate must be able to move off safely from any position while making the correct observations. This is tested at the start of the test and repeatedly throughout.

  • Move off safely from the side of the road — mirrors, signal, shoulder check before moving
  • Move off on a slope or hill — apply handbrake correctly, control the biting point, move without rolling back
  • Move off at an angle from behind a parked vehicle — extra observation needed as front swings out
  • Signal if any other road user would benefit from the signal

Examiner view: Rolling back even slightly on a hill start is a Grade 2 fault. Moving away at an angle without checking the right-hand blind spot is commonly marked as a Grade 3 if another car is approaching. Don't rush the pre-move routine — the examiner is not timing you.

Instructor Tip

Practice hill starts regularly until holding the car on the clutch biting point is instinctive. For moving off at an angle: before releasing the handbrake, look over your right shoulder — the front of your car will swing out into traffic. Many candidates focus only on the space ahead rather than what's coming from behind on the right.

What the examiner requires

When turning right, the candidate must position the car as close to the centre of the road as is safe. This allows oncoming traffic to pass on the left and enables a clear, safe right turn.

  • Move to the centre of the road early — before reaching the junction
  • Keep the front wheels pointing straight ahead while waiting — if hit from behind, you won't be pushed into oncoming traffic
  • Wait for a safe gap, not just a possible gap, in oncoming traffic
  • Complete the turn keeping to the correct side of the road
Instructor Tip

Many learners hug the left of the lane when turning right — this blocks vehicles behind and makes the turn dangerous. Position yourself as if you were going to straddle the centre line. If there's a right-turn lane marked, use it fully. Keep your wheels straight while you wait: this is a safety rule, not a style point.

What the examiner requires

The candidate must act correctly and safely at every traffic light encountered. A green light does not give an automatic right to proceed — the road must be clear.

  • At a green light: check the road is clear before proceeding — look for pedestrians, cyclists and vehicles that may have run the red
  • At an amber light: stop if safe to do so — do not accelerate through
  • At a red light: stop before the white stop line, not on it or past it
  • At a red and amber together: prepare to move but do not proceed until the light turns green
  • Obey any filter or arrow signals in addition to the main signal

Examiner view: Passing through an amber light when stopping was clearly possible is a Grade 3 fault. Creeping the car forward on red so the front bumper crosses the stop line is a Grade 2. Both are common on test routes with busy junctions.

Instructor Tip

Develop the habit of asking "what would I do if it turns amber right now?" as you approach every set of lights. If you're close enough that you couldn't stop safely, commit to continuing. If you're far enough back, commit to stopping. This two-option thinking eliminates the hesitation that causes accidents and faults.

What the examiner requires

The candidate must steer smoothly and accurately throughout the test, demonstrating full control of the vehicle at all times.

  • Steer as smoothly as possible — avoid jerky or erratic inputs
  • Steer at the correct time — too early or too late causes the car to mount the kerb or swing wide
  • Keep both hands on the wheel at all times except when using other controls
  • Do not cross your arms (cross-arm steering) when turning — use the push–pull technique
  • Straighten the wheel smoothly after completing a turn
Instructor Tip

Look where you want to go, not at the kerb. Your hands follow your eyes. The most common steering fault is steering too early into a left turn, clipping the kerb — this happens because the driver looks down at the kerb instead of through the turn to where they want the car to end up. Practise feeding the wheel smoothly and returning it without looking at your hands.

What the examiner requires

The candidate must be able to read, understand, and react appropriately to all traffic signs encountered on the test route — without prompting from the examiner.

  • Recognise and comply with all regulatory signs (stop, yield, speed limits, no entry, no overtaking)
  • Respond to warning signs — slow down appropriately for sharp bends, school zones, pedestrian crossings ahead
  • Observe any temporary signs or signals (roadworks, Garda direction)
  • Do not exceed posted speed limits — even briefly

Examiner view: Failing to stop at a stop sign — even if the road is clear — is an automatic Grade 3 fault. The test route is deliberately planned to include multiple regulatory signs. The examiner will not point them out. You must scan for them continuously.

Instructor Tip

Use your lessons to learn the signs on the roads local to your test centre — the examiner will use familiar local routes. Study the RSA Rules of the Road booklet (free online) and test yourself on all three categories: regulatory, warning, and information signs. Pay special attention to speed limit signs at zone boundaries.

What the examiner requires

The candidate must understand and react correctly to all road markings they encounter, treating them with the same authority as road signs.

  • Do not cross a continuous white centre line — even to overtake a slow vehicle
  • Obey lane markings — stay within your lane and position correctly in advance of turns
  • Do not stop in a yellow box junction unless turning right and waiting for a gap
  • Stop fully at a "STOP" road marking — do not roll over the line
  • Do not stop on zigzag lines at pedestrian crossings
Instructor Tip

Yellow box junctions catch many candidates off guard — candidates enter them thinking the exit will clear before they reach it. The rule is simple: only enter if your exit is already clear. If you're turning right, you may wait inside the box. For all other directions, if there's any doubt, wait outside. Study our road signs guide to review all line markings.

What the examiner requires

Road position is assessed continuously throughout the test — not just at junctions and turns. The examiner expects correct lane discipline at all times.

  • Position the car correctly for your intended route — get into the correct lane early
  • Drive in the middle of your marked lane during normal driving — not close to the kerb or centre line
  • Only change lanes when necessary and always using the full MSM routine
  • Keep left on single-carriageway roads except when overtaking or turning right
  • Do not straddle lane markings at any point
Instructor Tip

A common fault in new drivers is "nearside drift" — gradually pulling too close to the left kerb, particularly through bends. Use a fixed reference point: in most cars, keeping the left-lane marking level with your left door mirror puts you centrally in the lane. On multi-lane roads, make your lane choice 200m in advance — last-minute lane changes attract multiple marks.

What the examiner requires

The candidate must demonstrate appropriate speed management for the road, conditions, and hazards at all times — neither too fast nor unnecessarily slow.

  • Take into consideration the conditions of the road, the amount of traffic, road signs and signals, and the posted speed limit
  • Drive at a speed where you could stop safely, well within the distance you can see to be clear
  • Do not drive so slowly that you impede traffic flow or create a hazard behind you
  • Reduce speed in advance of hazards — junctions, bends, pedestrian crossings, school zones
  • Adjust speed for weather and visibility conditions — rain, low sun, fog

Examiner view: Nervous candidates often drive 5–10 km/h below the limit throughout the test. While this won't fail you outright, if it causes other drivers to take action (brake, swerve, overtake), it becomes a fault. Equally, accelerating hard to reach the limit on a short stretch between two junctions shows poor judgement.

Instructor Tip

The test examines your judgement, not just compliance. In a 50 km/h zone in rain with children near the footpath, the correct speed might be 35 km/h — and the examiner will note that. Develop the "commentary driving" habit: quietly narrate what you see and how it affects your speed. This keeps your brain actively scanning and shows the examiner you're reading the road.