Skip the auto shop - Our mechanics make house calls

Q: Turn signal lights keep failing, how can I fix this?

asked by on

When I use my turn signals, 4 out of 5 times the signal dies after 2 or three blinks. I then have to hit the "Hazard Light (Red Triangle)" button multiple times to get the signals to come back on. That fixes the probelm, but only for that time. If I go to use the signals again I have to use the "Hazard Light (Red Triangle)" button to make them funtion for a longer period of time.

Your problem is electrical, and all of the components involving the the turn signals will need to be inspected. Unfortunately it takes some trial and error in testing to find the component that is failing. Considering the hazard button tends to have an effect, you want to concentrate on the components these two parts shared.

Start by checking the multifunction switch. These switches can fail or have a bad connection giving you the intermittent symptom you’re experiencing. Another component they share is the flasher unit which sends the signal back and forth between the left and right side of the car. These typically won’t be the cause of symptoms like you have unless the connection to the flasher is damaged. The wiring connections running through the steering column can become damaged, but it is likely a switch at fault.

Further testing of your turn signal light is needed and it may be done best by a technician who is familiar with tracing electrical problems, such as one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: C0281code for brake switch circuit came up and I replaced the brake switch but ABS Light is still on

Hello. The C0281 code is a software-driven code if the ABS module doesn't detect "brake switch release", but sees speeds above 15 mph during the first minutes of operation. Check that the brake light switch is in fact going out...

Q: Car does not move and Idles constantly with the check engine light on.

Hi there. It seems to be either a transmission issue or the traction control is engaged. The traction control is designed to apply the brakes when a wheel is spinning out of control. However, if the traction control was to...

Q: Engine overheating, coolant is not circulating.

Hello. If coolant is not flowing through your cooling system I would try to determine if there is some sort of blockage, and where it may be. Draining the cooling system and removing the suspect radiator hose could determine if...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...