us Transport & mobility emergencies

What to do if…
your turn signals or indicators stop working before you set off

Produced and maintained by PanicStation.org Published: 30 June 2026 Last reviewed: 17 July 2026 Editorial policy USA guide

Short answer

Do not start a normal trip with failed turn signals. Arrange repair where the car is, or move it only if a short, daylight, low-speed trip to repair or help is unavoidable and you can signal clearly with hand-and-arm signals.

Do not do these things

Do not start a normal trip assuming other drivers will work out what you mean.
Do not rely on hazard lights as a substitute for turn signals when turning or changing lanes.
Do not take high-speed roads, complex interchanges, heavy traffic, or routes that need repeated lane changes.
Do not drive at night, in bad weather, or in poor visibility if other drivers may not see your hand signals.
Do not keep testing the stalk, switch, or fuse box while moving; check only while parked.
Do not attempt roadside repairs in a place where you could be hit by traffic.

What to do now

Pause before you set off.
If the trip can wait, do not drive. Reschedule, use a ride, public transit, delivery, or ask someone else for transport.
Do a quick parked check.
Test the left signal, right signal, and hazard lights. Walk around the vehicle, or ask someone to look, and check the front and rear signal lamps. Notice whether one side is out, both sides are out, or the hazards work but the turn signals do not.
Look only for a safe, simple fix.
A fast blink often points to a failed bulb on many vehicles, but it is not a diagnosis. If the fix is obvious, you have the correct bulb, and you can do it safely while parked, do it before moving. Otherwise, stop troubleshooting and arrange repair.
Arrange repair before travelling.
Call a repair shop, mobile mechanic, dealer service department, or roadside assistance. Tell them the turn signals stopped working before you drove and ask whether they can repair the vehicle where it is or advise on safe transport.
If you cannot safely signal, do not drive to the repair place yourself.
Ask about towing, mobile repair, or having another person collect parts or help. This is especially important if both turn signals and hazard lights are not working.
If a very short move to repair or help is unavoidable, lower the risk.
Go in daylight only. Use the shortest practical local-road route. Avoid freeways, multi-lane merges, roundabouts, busy intersections, and left turns across fast traffic where possible. Leave extra following distance, slow earlier than usual, and do not make last-second lane changes.
Use standard hand-and-arm signals if your signal lights are not working and it is safe for others to see them.
State driver manuals generally show these signals:
- Left turn: left arm straight out.
- Right turn: left arm out and bent upward at about 90 degrees.
- Slow or stop: left arm out and bent downward.
Signal early enough for other road users to see you, then complete the maneuver smoothly. Put your hand back on the wheel when you need full control of the vehicle.
If both turn signals and hazard lights are out, treat the vehicle as not safe for ordinary driving.
More than one warning system may be unavailable. Stay parked if you can and use repair, roadside assistance, or towing.

What can wait

You do not need to diagnose the wiring, relay, stalk, fuse, body-control module, or exact fault right now.
You do not need to research every state rule before making the safer immediate choice to delay the trip.
You do not need to decide today whether the car has a bigger electrical problem.
You do not need to make long-term decisions about keeping, selling, or replacing the vehicle.

Important reassurance

Noticing this before you set off gives you time to avoid a risky first move. A delay is frustrating, but it is much easier to deal with a repair while parked than to manage failed signals in traffic.

Scope note

These are first steps only to help you avoid an unsafe drive and get the vehicle to repair or support. Exact traffic and equipment rules vary by state, and later decisions may need a licensed mechanic, roadside assistance provider, insurer, or local legal guidance.

Important note

This is general safety information, not legal advice, professional driving instruction, or a mechanical diagnosis. If you cannot clearly communicate turns, lane changes, slowing, and stopping, delaying the trip and getting the turn signals repaired is the safer choice.

Additional Resources

About this guide

This guide was produced and is maintained by PanicStation.org using its published editorial process. Official and specialist sources are checked where relevant, and AI-assisted tools may be used for drafting, organisation, and consistency checks. The site operator remains responsible for publication, revision, and removal decisions.

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