Why is My Turn Signal Light Blinking Fast?

Communication with other drivers is important for safe Monticello, MN travels, and no method of communication is more effective than your turn signal. Whether you’re changing lanes on the highway or turning left at a light, a properly functioning turn signal is essential for avoiding accidents. So, when your turn signal starts blinking at twice its normal speed, you may wonder, “Why is my turn signal light blinking fast? And is it affecting my safety on the Anoka, MN roads?”

Cornerstone Auto’s service team is here to help. Learn about some of the common causes of a fast-blinking turn signal with this comprehensive guide from Cornerstone Auto.

What Causes a Fast-Blinking Turn Signal Light?

A burned-out bulb is one of the most common causes of a fast-blinking turn signal. To determine which bulb is out, use the signals for both left and right to see which blinks on your dashboard at twice its normal rate. Typically, the corresponding left or right bulb is the culprit. To confirm, park your vehicle in your Ramsey, MN driveway and test the signals. When you exit your car, check the front and rear turn signals to see which bulb has burnt out.

Once you know which turn signal bulb is out, you’ll need to replace it as soon as possible. Your owner’s manual will have more information on the recommended bulbs for your vehicle and how to access the turn signal lights to replace them. If you need help finding the right bulbs, get in touch with our parts department.

What if the Turn Signal Flashes Fast But the Bulbs Are Good?

If the turn signal is flashing fast, but the bulbs are good, your car may have a more complicated problem. Some of the reasons why your turn signal light is blinking fast even with operational bulbs may include:

• Corrosion inside the socket
• Problem with the turn-signal flasher unit
• Detached or broken power wire
• Broken or corroded ground wire

Due to the complex nature of vehicle electrical systems, many of these issues cannot be diagnosed at home. Get help from the experts when you schedule an appointment with one of our Cornerstone Auto Group dealerships! Our trained technicians can pinpoint the problem and get your vehicle in working order as soon as possible.

Get More Service Tips at Cornerstone Auto

Now that you know more about why your turn signal is flashing fast or whether your bulbs are good, you can get back on the Elk River roads! For more service tips and tricks, visit our research center. Or, if you’re planning to bring your car in to get the bulbs replaced, browse our service and parts specials to see how you can save.