Q: Driver's side low beam light is dim, even after replacing the bulb.

asked by on

drivers side low beam is dimmer than passengers side. replaced bulb but same problem exists

My car has 210000 miles.
My car has an automatic transmission.

Did you see any corrosion or a broken connector on the dimmer side? Corrosion can build up in the circuit and rod the bulb of voltage causing a dim light. A technician with access to a wiring diagram can trace the power feed along the circuit to track down where the voltage loss is coming from.

Also, you must replace bulbs in pairs as a set of bulbs (high beams or low beams) can generally be found along the same circuit, so when one side is affected, the other side may not be far behind.

If you’re unable to pinpoint the issue yourself, consider hiring an experienced technician like one from YourMechanic who can come to your home or office to diagnose the issue with your low beam lights and help you fix them as necessary.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. Driver's side low beam light is dim, even after replacing the bulb.

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: AC Blowing from vents and defrost

The air conditioner blend door is controlled by an electronic actuator and if the door is not in set position then you may have a defective actuator and need to replace it. The door operation should be in the manual...

Q: 15 caravan put left turn signal light,right turn flashes also front and rear.

I have seen either a bad bulb or the wrong bulb cause all kinds of issues similar to what you are having. The problem is caused because power is not getting to the right ground. The power is backfeeding...

Q: Lights not working proper

Your vehicle was not originally designed to run the low voltage led bulbs so some minor issues can occur. Swap the bulb or bulbs, that are not lighting up with the same bulbs from the opposite side of the vehicle....

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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...