DriveInOntario.caThere's no official published list of "most missed" G1 questions — DriveTest doesn't release that data. But test-prep patterns and our own question bank point to the same handful of topics again and again, usually because the real rule is stricter (or looser) than most people assume. Here are 10 worth double-checking before test day.
1. Zero blood alcohol, not 0.05% or 0.08%
A lot of people assume the G1 limit matches the 0.05% "warning range" or the 0.08% criminal limit that applies to fully licenced G drivers. It doesn't. G1 and G2 drivers must maintain a completely zero blood alcohol level at all times — there's no grey zone.
2. Right-of-way at an uncontrolled intersection
When two vehicles arrive at an intersection with no stop signs or lights, the instinct is to assume "whoever gets there first" goes first. The actual rule: you yield to the vehicle approaching from your right.
3. Yield sign vs. stop sign
A yield sign doesn't automatically mean "stop." It means slow down and be ready to stop if necessary to let other traffic or pedestrians go first. If the way is clear, you can proceed without coming to a full stop — that's the part people miss.
4. The demerit point suspension threshold
This one catches even people who've studied: novice drivers (G1/G2) face an automatic licence suspension at 9 accumulated demerit points, not 6. Separately, a single conviction worth 4 or more points triggers its own automatic 30-day suspension regardless of your running total — the two rules are easy to mix up.
5. The one-metre passing law
Ontario law requires drivers to leave at least 1 metre of space when passing a cyclist travelling in the same direction. People often guess a much larger distance (or forget there's a specific number at all).
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6. Parking near a fire hydrant
Parking is prohibited within 3 metres of a fire hydrant — a specific number, not "a reasonable distance," and a common test-day trip-up.
7. Sign shape and colour before sign text
Road signs are designed to be recognizable by shape and colour alone, at a glance, before you can even read the words. An octagon is always a stop sign, a downward triangle is always yield, diamonds are always warnings, and fluorescent yellow-green is always pedestrian/school related. Studying shapes first is faster than memorizing every caption.
8. When headlights are legally required
It's not just "when it's dark." Headlights are required from half an hour before sunset until half an hour after sunrise, and any time visibility drops below 150 metres — rain, fog, or snow included.
9. HOV lane minimums
High-occupancy vehicle lanes are marked with a white diamond, and questions often test whether you know they're reserved for vehicles carrying at least the posted minimum number of occupants — which isn't always 2, so read the sign.
10. What a supervising driver actually needs
G1 drivers must be accompanied by a supervisor with a full Class G licence (or higher), at least 4 years of driving experience, and a blood alcohol level under 0.05 — all three conditions, not just "someone with a licence."
None of this replaces reading the Official MTO Driver's Handbook — treat this as a list of places to slow down and double-check your own assumptions.