Skip the auto shop - Our mechanics make house calls

Q: Headlights work intermittently

asked by on

The headlights seems to have an electrical problem. Sometimes both work, as well as the high beams, but mostly they don't turn on.

The headlights work on a high voltage circuit including relays and fuses for over voltage protection. The vehicle may be experiencing faulted relays or the switch that powers the headlight circuit. I recommend having a technician experienced in vehicle electrical systems inspect the exterior lighting circuit. From their diagnosis, they will be able to perform the necessary repairs for your headlight issue.

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: Serpintine belt might be out? Car isn't starting.

Although the serpentine belt does power multiple components on your Cadillac Seville, the electrical gauges are not part on that list to my knowledge. The alternator, which is typically driven by the serpentine belt does power those parts however. My...

Q: Hyundai Elantra 2017- RPM is going up and same time Speed is reducing on Highway

In most cases this issue is caused by a faulty speed sensor on the transmission or a ECU glitch that should be reviewed or repaired by a Hyundai dealership. Since your car is a new model, it might be best...

Q: Why car cranks but wont start after over heating

Hello, It sounds like you may still have a leak between the cylinder head gasket and the cylinder head allowing coolant to leak into the oil passages and cylinders. A blown head gasket may cause a number of different symptoms....

Related articles

What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.