Blinking Yellow and Red Light Laws

Blinking Yellow and Red Lights at Intersections in North Carolina

Blinking yellow and red lights at North Carolina intersections trip up many drivers, and the rule is simpler than it seems: a flashing red light means stop, and a flashing yellow light means slow down and proceed with caution. Get those two backward, and you have a crash, often a bad one, because the driver facing the flashing yellow assumes everyone else will stop.

North Carolina also added flashing yellow arrows for left turns, which further confuse drivers. Below is what each signal legally requires, who has the right of way, and how fault works when two cars meet in the middle of the intersection.

What Does a Flashing Red Light Mean in North Carolina?

Stop, then yield, exactly like a stop sign. The vehicle control statute, G.S. 20-158(b)(3), is direct:

When a flashing red light has been erected or installed at an intersection, approaching vehicles facing the red light shall stop and yield the right-of-way to vehicles in or approaching the intersection. The right to proceed shall be subject to the rules applicable to making a stop at a stop sign.

So a flashing red is a stop sign. You come to a complete stop, yield to cross traffic, and go when it is safe.

What Does a Flashing Yellow Light Mean in North Carolina?

Slow down and proceed with caution. You do not have to stop, but you do not have the automatic right to blow through. G.S. 20-158(b)(4) says:

When a flashing yellow light has been erected or installed at an intersection, approaching vehicles facing the yellow flashing light may proceed through the intersection with caution, yielding the right-of-way to vehicles in or approaching the intersection.

The driver on the flashing yellow generally has the favored direction, but the duty to use caution and yield where needed still applies.

Who Has the Right of Way at a Flashing Yellow and Flashing Red Intersection?

The flashing yellow direction. When one road gets a flashing yellow, and the cross street gets a flashing red, the flashing-yellow traffic is the through traffic and has the right of way. The flashing red traffic light must stop and yield to it. Most crashes here happen when a driver with a flashing red light rolls through the stop and pulls out in front of flashing yellow traffic.

What Does a Flashing Yellow Arrow Mean for a Left Turn in North Carolina?

You may turn left, but you must yield to oncoming traffic. The flashing yellow arrow has replaced many old green-ball left turns. It means left turns are permitted, but oncoming cars and pedestrians have the right of way, so you wait for a safe gap. A steady yellow arrow that follows is a warning that the protected turn or the signal is ending.

What Happens When a Traffic Light Is Completely Dark in North Carolina?

Treat the whole intersection as a four-way stop. When a signal loses power, G.S. 20-158(b)(6) provides that drivers approach and proceed:

as though such intersection is controlled by a stop sign on all approaches to the intersection.

Every driver stops, then the usual courtesy applies: first to arrive goes first, and when two arrive together, the driver on the right goes first. This rule does not apply if an officer is directing traffic.

Why Do Traffic Lights Switch to Flashing Mode at Night?

To keep low-traffic intersections moving. Many North Carolina signals flash overnight, giving the main road a flashing yellow and the side street a flashing red, so a driver on the side street does not sit at a red light with no cross traffic. The risk is that drivers get comfortable and a side-street driver fails to fully stop.

Who Is at Fault in a Flashing-Light Intersection Crash?

Usually the flashing-red driver who failed to stop or yield. Because the flashing-red driver carries the duty to stop and yield, that driver is most often at fault when they pull into flashing-yellow traffic. But it is not automatic. A driver flashing yellow, speeding, or not keeping a proper lookout can share fault, which matters a great deal in North Carolina.

Does Running a Flashing Red Light Automatically Make Me at Fault?

No. Like other vehicle-control violations, the failure is strong evidence of a violation but not an automatic fault. G.S. 20-158(d) provides that no failure to stop under the section is negligence or contributory negligence per se, though the facts may be weighed with everything else. Under North Carolina's strict contributory negligence rule, where even slight fault can bar a claim, those details decide the case. If you were injured, our North Carolina car accident lawyers can determine who had the duty to yield.

What Should I Do After a Crash at a Flashing-Light Intersection?

Capture which signal each driver faced. Photograph the signals and which direction had the flashing red versus the flashing yellow, note the time if the lights were in night-flash mode, and get witnesses who saw who stopped. Call the police and get medical care the same day. The signal each driver faced is the heart of these cases, and it is easy to lose once you leave.

How Is This Different From a Stop Sign Case?

It mostly is not, on the flashing-red side. A flashing red light is treated legally as a stop sign, so the same stop-and-yield duty and the same fault analysis apply. The added wrinkle is the flashing yellow and the flashing yellow arrow, where the favored driver still owes a duty of caution. Our page on North Carolina stop sign laws covers the stop-sign side in depth.

Can I Get a Ticket for Rolling Through a Flashing Red Light?

Yes. A flashing red is legally a stop sign, so rolling through it without a complete stop is a citable violation, the same as a rolling stop at any stop sign. The bigger risk is not the ticket; it is pulling into cross traffic that has the favored flashing-yellow direction and causing a serious side-impact crash.

What if My Crash Happened Because the Traffic Light Malfunctioned?

It changes who else may be responsible. If a signal was dark, stuck, or displayed conflicting lights due to a malfunction, the public entity responsible for maintaining it may share responsibility, in addition to any at-fault driver. Claims involving a city, a county, or the state Department of Transportation are subject to special procedural requirements and tight deadlines, so it is important to act quickly. Our North Carolina car accident lawyers can identify who controlled the signal.

Are Flashing-Light Intersections More Dangerous at Night?

They carry their own risk. Overnight flash mode keeps low-traffic intersections moving, but it depends on every driver knowing the rules and staying alert when they are tired. A driver on the side street who treats a flashing red like a flashing yellow, or who simply does not see it, can pull straight into the path of faster main-road traffic. Reduced visibility and drowsiness make those mistakes more likely after dark.

Who Is Responsible for Maintaining the Traffic Signal That Failed?

It depends on the road. The North Carolina Department of Transportation maintains signals on state highways, while a city or town maintains the signals on streets under its jurisdiction. That distinction matters when a malfunctioning or poorly maintained signal contributes to a crash, because the responsible public entity may share liability. Claims against a public entity carry special procedural requirements and tight deadlines, so determining who controlled the signal needs to happen early.

Talk to a North Carolina Car Accident Lawyer at The Law Offices of John M. McCabe

If a driver ran a flashing red light and hit you, the right-of-way fight starts immediately with the insurer. The Law Offices of John M. McCabe prepares every case as if a jury will hear it. Call for a free consultation.

Updated 2026. This page reflects North Carolina's vehicle control statute, G.S. 20-158, in effect as of 2026. It is general information, not legal advice.

Check out other NC safety laws by visiting our main North Carolina safety laws page.