Turn signal use — New Mexico Permit Test

Turn signal use on the New Mexico permit test — 5 rules, each with the reason behind it and a question on it while it is fresh.

The rules

Signal at least 100 feet before you make your turn.

One hundred feet of warning gives the drivers around you time to slow down or plan for your turn.

Signal at least 100 feet before you make your turn.

New Mexico Driver Manual, p.19

Get into the habit of signaling every time you change direction, even when you do not see anyone else around.

It is easy to miss a car, bike or walker who needs to know what you are about to do.

Signal even when you do not see anyone else around.

New Mexico Driver Manual, p.19

If another vehicle is about to enter the street between you and where you plan to turn, wait until you have passed it to signal.

Signaling too early may make that driver think you are turning where they are, so they pull out in front of you.

If another vehicle is about to enter the street between you and where you plan to turn, wait until you have passed it to signal your turn.

New Mexico Driver Manual, p.19

After a turn or lane change, make sure your turn signal is off; after small turns it may not turn off by itself.

A signal left blinking tells others you plan to turn again, and they may act on that.

After you have made a turn or lane change, make sure your turn signal is off.

New Mexico Driver Manual, p.19

Use your turn signals before you change lanes, turn right or left, merge into traffic or park.

Signals give other drivers time to react to your moves before you make them.

You should use your turn signals before you change lanes, turn right or left, merge into traffic or park.

New Mexico Driver Manual, p.19

On the test

How far before a turn should you signal?

At least 100 feet. One hundred feet of warning gives the drivers around you time to slow down or plan for your turn. New Mexico Driver Manual, p.19: “Signal at least 100 feet before you make your turn.”

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

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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.