Hyundai Sonata Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Hyundai Sonata

Hyundai Sonata Problems

Parking lights don't turn off

    Parking lights not turning off intermittently or all the time. The common problem is with the cabin fuse box.  Complete replacement of the assembly is necessary to fix the problem.

Confirm Latest Software For Transmission Control Module and Correct Fuild For Proper Shift Quailty

Prior to replacing the automatic transmission fluid (to improve shift quality), make sure that the transmission fluid level is correct. Also, make sure the computer that controls the transmission has the most up-to-date adaptive programming information. When servicing these transmissions be sure to use fluid approved by Hyundai.

Rough Idle Due to Faulty EGR Switching Valve

On the 2.7L V6 and 2.4L 4 Cylinder, a defective exhaust gas recirculation (EGR) switching valve may cause an intermittent rough or unstable idle engine.

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Hyundai Sonata Questions

DC Emissions says the car has 4 sensors that needs to be changed. Can you please give me the specific part numbers for the sensors? With warm regards, (1 answer)

This was my reading when it went through Emissions.
Monitors Not Ready:
Catalyst
Oxygen Sensor
MIL Remains lit at key-on-engine-running
MIL Commanded On
1 Trouble Code Reported:
P0056 HO2S Heater Circuit Bank 2 Sensor 2

will not start or try to crank over, all electrical works, battery is good (1 answer)

I have checked the fuses, I don't know what this could be. I drove it 9 hours earlier and it was fine. There has never been any kind of problem with it. The only thing I've noticed is the negative post cover is very loose. But do you have any other ideas?

Whenever i get on the freeway and get to 80mph the steering starts shacking; Whats's the cause of that?? (2 answers)

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Hyundai Sonata Recalls

Power Steering Assist Fails

The electronic power steering circuit board may be damaged and result in a loss of power steering assist. Dealers will replace the control unit for the electronic power steering free of charge to resolve the concern.

Brake Lights Stay Illuminated

The brake pedal stopper pad can deteriorate, resulting in the stop lamp switch plunger to remain extended when the brake pedal is released. This will cause the brake lights to stay illuminated, and will allow the automatic transmission shift lever to be moved out of park without depressing the brake pedal. Dealers will replace the brake pedal stopper pad with an improved part free of charge to resolve the concern.

Anti Lock Brake System Warning Light Does Not Illuminate

The anti-lock brake system warning light may not illuminate, and may fail to indicate a problem with the system to the driver. Dealers will update the anti-lock brake system control unit software free of charge to resolve the concern.

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Hyundai Sonata Reviews

I have a 2010 hundai sonata two years in and there is a dilemma with my starter.
I was driving my 2000 Hyundai Sonata GLS and the brake and battery lights came on. They started out flashing then stayed on. When in park I revved the engine and the lights would go out then come back on. Later on in the evening I drove it again. The lights did'nt come on at first but then on again. So I stomped on the pedal to go and then it acted like my transmission was in neutral. the check...
I own a 2005 6cyl Sonata. Purchased it with 15k miles. Have taken outstanding care of it thru out the years. Has been a wonderful car; however, it lately has been making a ticking/tapping noise on a cold start, and goes away once it's warm. My mechanic diagnosed it by ear only...says it's engine bearings and will probably need a new engine soon :(((( I need an expert to tell me otherwise. Does ...

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