When and How to Use Turn Signals

By the Mercury Team

Imagine driving down a busy road when suddenly, the car in front of you swerves into your lane without warning. No signal, no heads-up—just an unexpected move that forces you to slam on the brakes. Frustrating, right? Despite how easy it is to use turn signals, many drivers neglect them, which puts themselves and others at risk.

In this guide, we’ll break down how and when to use turn signals correctly, and explore the legal and safety consequences of not signaling.

How to Use Turn Signals

Using turn signals might seem like a simple task, but doing it correctly is key to keeping traffic flowing smoothly and safely. Here’s what you need to know:

Basic Operation

Most vehicles have a turn signal lever located on the left side of the steering column, within easy reach of your left hand. Using it is straightforward: push the lever up to indicate a right turn and down for a left turn.

Once activated, your turn signals will flash on both the front and back of your car, letting everyone around you know where you’re headed. Most cars will also give you a little dashboard reminder or a clicking sound to help you keep track.

Proper Timing

Knowing when to turn on your signal is just as important as using it. The general rule is:

Turn on your blinker about 100 feet before a turn
Signal at least three to five seconds before changing lanes

This gives the drivers around you enough time to react. But be careful—not too soon, not too late. If you flip your blinker on way too early (like when you’re still a few blocks away from your actual turn), other drivers might think you’re turning at the wrong spot. On the other hand, if you wait until the last second, you’re not giving people enough notice to slow down or adjust.

Signal Cancellation

Most cars will automatically turn off the blinker after you complete a turn, but it’s not always a guarantee—especially if you’re merging or making a slight turn. The last thing you want is to be that driver who’s cruising down the highway with their signal still blinking for miles!

Always do a quick check after a turn or lane change to make sure your blinker is off. A lingering signal can confuse other drivers, making them hesitate or assume you’re about to turn when you’re not.

When Should Turn Signals Be Used?

Using your blinker at the right time makes driving safer, smoother, and less stressful for everyone around you. Here are some key moments when you should always use your turn signals:

Turning at Intersections

One of the most obvious times to use your turn signal is when you’re approaching an intersection. Whether you’re making a left or right turn, let other drivers and pedestrians know what you’re planning to do. Even if you’re already in a designated turn lane, it’s still a good idea to signal because you never know when someone is unsure about your next move.

Changing Lanes on Highways or City Streets

Lane changes can be risky if you don’t give other drivers a heads-up. Before switching lanes, always follow these steps:

Check your mirrors to see if the lane is clear.
Look over your shoulder to check your blind spot.
Turn on your signal at least three seconds before moving over.

Even if you think no one’s around, get in the habit of signaling every time. Other drivers might be in your blind spot or approaching faster than you realize.

Merging and Exiting

Whether you’re merging onto a highway or exiting via an off-ramp, your turn signal is essential. When merging, signal as early as possible so drivers in the next lane can either slow down or speed up to make room for you.

For exits, turn on your blinker well before reaching the off-ramp. Waiting too long can confuse drivers behind you, and suddenly cutting over can be dangerous.

Parking and Reentering Traffic

Turn signals are also important when pulling into or out of a parking space. If you’re parking on the street, signal before you pull over so that cars behind you know to slow down.

When pulling out from a curb or parking spot, use your blinker to indicate which direction you’re going. This is especially useful in busy parking lots or city streets where other drivers may not immediately realize you’re about to move.

Is It Illegal to Not Use Turn Signals?

In most states, not using your turn signal is considered a traffic violation. Laws vary by location, but generally, if you fail to signal before turning, changing lanes, merging, or pulling into traffic, you can get a ticket and a fine. The penalty amount depends on the state, but in some areas, it could cost you anywhere from $25 to over $200.

Beyond the legal consequences, not using your blinker can make you the at-fault driver in an accident. If you suddenly turn or change lanes without warning and someone hits you, there’s a good chance you’ll be blamed for the crash. This also affects your car insurance. If an investigation shows you didn’t signal, your claim could be denied, meaning you’ll be paying more out of pocket.

You may ask yourself, “Does your insurance increase after a ticket?” Yes, it usually does. Even minor infractions like failing to signal can raise your rates because insurance companies factor in any traffic violations when determining risk. The more violations on your record, the higher your premium could climb.

Ask the Insurance Expert

Q: What practical tips do insurance professionals recommend for using turn signals to minimize accidents, reduce claims, and maintain lower premiums?

A: “It’s really simple. Make it a habit to use your turn signal every time you turn, change lanes, or merge—and do it early. It’s a big part of safe driving, and when you’re safe behind the wheel, you’re less likely to get into a wreck and have to file a claim. A clean driving record means lower premiums, so using your blinker can save you a lot of money down the road.”

- Kevin Quinn, VP, Auto Claims

Conclusion

Using your turn signal is one of the simplest things you can do to keep yourself and others safe on the road. So if you tend to not use it, make it a habit. It takes almost no effort and it can prevent accidents, avoid confusion, and even save you from getting a ticket.

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Mercury Team

The Mercury Marketing Team is made up of professionals in the fields of Content Creation, Public Relations, Social Media and Journalism. The team works together to deliver professionally written and researched content to provide information for consumers.