Blind spots — California Permit Test
Blind spots on the California permit test — 4 rules, each with the reason behind it and a question on it while it is fresh.
The rules
Every vehicle has blind spots, areas around the vehicle a driver cannot see when looking straight ahead or using the mirrors, and for most vehicles they are at the sides, slightly behind the driver.
The mirrors cover most of the road behind, and the piece they miss is beside your back door.
Every vehicle has blind spots. These are areas around the vehicle that a driver cannot see when looking straight ahead or using the mirrors.
To check your blind spots, look over your right and left shoulders out of your side windows, turning only your head and not your whole body or the steering wheel.
Turning your shoulders takes the wheel with them, and the car follows your hands.
To check your blind spots, look over spots.
Check your blind spots before you change lanes, turn at an intersection, merge with traffic or back up.
Each of those puts your car somewhere it was not, and the blind spot is where the surprise lives.
Check your blind spots before you:
Check your blind spots before you leave a parking space, parallel park, pull out from the curb or open your car door.
Opening a door into the lane is the one that catches a rider who had no warning at all.
Leave a parking space.
On the test
Where are most vehicles’ blind spots?
At the sides, slightly behind the driver. The mirrors cover most of the road behind, and the piece they miss is beside your back door. California Driver’s Handbook, p.58: “Every vehicle has blind spots. These are areas around the vehicle that a driver cannot see when looking straight ahead or using the mirrors.”
How this works
Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.
You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.
Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.
What it costs
- One payment, once — not a subscription. Nothing renews and there is nothing to cancel, for an exam you sit one time.
- Free to start: a 10-question test and the first section of cards. No sign-up and no account.
- Paying opens the rest of the cards, unlimited full-length practice tests, and retests built from exactly the questions you got wrong.
- Every level up to Prepared — 3 tests passed in a row.
- Do the work, fail the real exam, and we refund you.
Where these come from
Every rule here is checked against California Driver’s Handbook, published by the California Department of Motor Vehicles, and against the state code itself. Last checked 2026-09-21.
- src/assets/drivers-manuals/CA.pdf (California Driver’s Handbook, DL 600 ENGLISH (REV. 6/2025), retrieved 2026-09-14; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/CA.pages.txt (the pdftotext -layout fixture every citation here was cut against and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SOURCES.json, CA entry — the folio offset of 6 and its basis, the three non-law pages, the two sign gallery pages, and the record of why California’s exam shape is this app’s own
- docs/plans/chosen-exam-shapes.md section 5 — the decision that a state publishing neither exam figure ships 40/32 with both disclosed
- docs/plans/how-to-build-laws.md — the rule that the handbook is the syllabus and nothing enters this file without a page in it