Skip the auto shop - Our mechanics make house calls

Q: Car headlight has low beam problem

asked by on

The left headlight in my car has a low-beam malfunction.

Hello. Depending on the type of head lamp system your car has, this could be as simple as a burned out head lamp bulb. If you have a standard halogen headlamp, it is probably just a burned out bulb. Now if your car is equipped with xenon headlamps, swapping of the xenon bulbs from left to right should be done to confirm that bulb has failed. If the left lamp still won’t light up, the components will need to be swapped from left to right. This would include the ignitor and control units if possible. By swapping the parts, it will lead to a recommendation of which part to replace since xenon bulbs have a longer lifespan over regular bulbs. You may need a mechanic to swap parts around to determine what has caused your lighting 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: Clicking sound when turning over.

This may be related to a faulty starter solenoid. The starter solenoid is located on the starter and has internal electrical contacts that transmit electricity to the starter. When this fails, it may cause a clicking sound and will not...

Q: A/C off, engine temp high message

Hello, It sounds like you may possibly have a faulty cooling fan relay which may be preventing the fans from coming on at the correct time resulting in the high temperature message. The other possibility may be the cooling fan...

Q: Key broke off in lock

Hi there. A broken key in a key hole is best handled by a locksmith. They have special tools to extract the broken piece that is lodged into your key cylinder. If you have a spare key, this is a...

Related articles

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...
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...