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Who is responsible for a defective traffic signal crash?

by | Oct 16, 2026 | Personal Injury

A malfunctioning traffic signal can leave you unsure when it is safe to drive through an intersection. If a defective traffic light contributes to a crash, you may wonder who is responsible for your injuries and losses.

Who is responsible may depend on why the traffic light stopped working and whether a driver or someone else made a mistake.

Follow Maryland’s rules at a broken signal

If a traffic signal stops working, the law requires you to stop before entering the intersection. Stop at the marked stop line or before the crosswalk if no line exists. If neither exists, stop before entering the intersection.

Yield to vehicles and pedestrians already in the intersection, and proceed only when it is safe. Also, if the signal malfunctions, you must follow these rules to help prevent a crash.

Who may be responsible for the crash?

Responsibility for a crash involving a faulty traffic signal depends on the reason for the failure and who played a role in the accident. Depending on the evidence, you may have a claim against one or more parties:

  • Another driver: If a driver’s carelessness led to the crash, their actions may support a claim.
  • A government agency: If the agency responsible for the signal failed to address a known hazard, it may face liability, depending on applicable law and immunity rules.
  • A repair contractor: If a contractor installed or repaired the signal negligently, its work may have led to the collision.

Maryland law limits claims against government agencies, so you must check the rules that apply to the specific agency involved.

Keep evidence that supports your claim

Evidence can help establish why the traffic signal failed and whether someone’s actions contributed to your crash. Save photos or videos of the intersection, signal, vehicle damage and your injuries. Keep medical bills, repair estimates and witness contact details.

You can also request relevant traffic signal maintenance records from the responsible agency. These records may help show whether someone knew about the problem before the crash.

Get help with your claim

A car accident can leave you facing medical bills, repair costs and lost income when you need money most. If a faulty traffic signal caused your crash, seek legal guidance to explore your options for compensation. Acting promptly can help protect your rights and support your recovery.