Skip the auto shop - Our mechanics make house calls

Q: Lights dim go off

asked by on

I own a 2007 Hyundai Azera, and my headlights and interior lights dim while I’m driving. Sometimes my whole panel lights up like everything is going to quit working. Then I loose power just for a minute, and everything is fine again. Do you have any idea what this could be? How can I fix this problem?

Hi! It sounds like the voltage regulator for the alternator on your Hyundai is having trouble supplying the proper voltage for your system to run. I would suggest testing the alternator and any fuses and relays related to the alternator.

Make sure the relay and the fuse have good clean contact points. Check all the connections for the alternator and battery as well to make sure they are good and tight. If you need help testing your systems YourMechanic will provide a technician to diagnose your vehicle’s lights at your home or office.

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

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: EPC light on an now I have no power, brake an battery light is flashing

You probably have a dead battery. The computer systems on your car will be prone to odd behaviors when the battery voltage gets low, so you may see lots of things that don't make sense. The battery could be dead...

Q: Had to manually unlock car & key stuck in ignition

Try to turn the key to the On position and then press and hold the remote button until the central locking light blinks rapidly. Then release the button and turn off the ignition. This should reconnect the remote to the...

Q: Transmission won't shift gears

Hi there, thanks for writing in. There are multiple causes of an automatic transmission that won't shift properly. Failed shift solenoids can cause this condition, but unless the problem was properly diagnosed, it's possible that it was a guess. It...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...