Headlight high low beams — New Mexico Permit Test
Headlight high low beams on the New Mexico permit test — 6 rules, each with the reason behind it and a question on it while it is fresh.
The rules
Use your high beams whenever there are no oncoming vehicles; high beams let you see twice as far as low beams.
At night you can only stop for what you can see, and high beams show you much more of the road.
High beams let you see twice as far as low beams.
It is important to use high beams on unfamiliar roads, in construction areas, or where there may be people along the side of the road.
On a road you do not know, more light lets you spot curves, work zones and people sooner.
It is important to use high beams on unfamiliar roads, in construction areas or where there may be people along the side of the road.
Dim your high beams whenever you come within about one block of an oncoming vehicle.
Bright lights in an oncoming driver's eyes can blind them just as they pass you.
Dim your high beams whenever you come within about a one-block distance of an oncoming vehicle.
Use your low beams within 200 feet when following another vehicle or when in heavy traffic.
High beams from behind glare in the other driver's mirrors and can blind them.
Use your low beams within 200 feet when following another vehicle or when in heavy traffic.
Use low beams in fog or when it is snowing or raining hard; light from high beams reflects back, causing glare.
In fog or heavy snow, bright light bounces off the drops and flakes and makes it harder to see.
Use the low beams in fog or when it is snowing or raining hard.
Do not drive at any time with only your parking lights on; parking lights are for parking only.
Parking lights are too dim to light the road or let other drivers judge where you are.
Do not drive at any time with only your parking lights on.
On the test
How much farther do high beams let you see than low beams?
About twice as far. At night you can only stop for what you can see, and high beams show you much more of the road. New Mexico Driver Manual, p.18: “High beams let you see twice as far as low beams.”
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 New Mexico Driver Manual, published by the New Mexico Taxation and Revenue Department, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/NM.pdf (New Mexico Driver Manual, New Mexico Motor Vehicle Division, English Drivers Manualver11.19.19.pdf, retrieved 2026-10-04; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/NM.pages.txt (the pdftotext -layout fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/NM-exam.html (MVD Procedures Manual, Chapter 11: Road And Written Test Requirements, https://www.mvd.newmexico.gov/chapter-11-road-and-written-test-requirements/, archived 2026-10-04; the 70% pass rate)
- https://www.mvd.newmexico.gov/mvd-drivers-license-manuals/
- docs/plans/new-mexico-exam-shape.md (every official source checked for the exam's shape, and what each gave)