Skip the auto shop - Our mechanics make house calls

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 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: Wheel bearings

It sounds like you may have a failing or worn out wheel bearing. A wheel bearing will usually fail due to pitting or small damage on the surface of the rollers or the bearing race. Both the surface of the...

Q: How do I turn on the high beams?

The high beam headlights provide extra visibility when it is dark out. To turn on the high beams, pull the Turn Signal lever towards you all the way, until it locks into place. A light will illuminate to confirm that...

Q: Removing brake light bulb

Hello. The brake light bulb for your vehicle uses a twist lock type base. To remove the bulbs, gently push down to unlock them from the base, and then rotate them counterclockwise and out. If the bulb is stuck, gently...

Related articles

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...
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.