Skip the auto shop - Our mechanics make house calls

Q: Lights flashing when headlights on

asked by on

All of my lights flash on and off continuously when my headlights are on.

A: Hi there. The first thing I would suspect i...

Hi there. The first thing I would suspect is a relay that keeps reseting. Also, it might be an electrical problem with the alternator. Since there are many variables that come into play, having a certified mechanic, like one from YourMechanic, inspect the electrical problem with your vehicle.

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・Save up to 30%

Get a quote

What others are asking

Q: Rear brake squealing noise goes off when brakes applied.

Hey there. If the noise was not there before you replaced the brake pads on your 2014 Audi A4, you might want to try replacing the caliper clips and using a good quality brake lube anywhere the pads make contact...

Q: Clutch out in car

The clutch will typically last about 150,000 miles. When the clutch is bad you may have a problem putting the car in gear or when you drive you may feel the clutch slip. A good way to tell if the...

Q: My car won't stat,dead battery expected the battery's fully charged?

Hey, thanks for writing in about your 2003 Cadillac CTS. It certainly sounds like your battery is the issue. It is possible for it to take a charge and have voltage but not have the capacity to start your vehicle....

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...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...