2009 Hyundai Sonata Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2009 Hyundai Sonata

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.

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.

Problems with the accelerator pedal position switch may cause the Check Engine Light to illuminate; an improved switch is available to fix this problem.

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when i go over 45mph I hear a low humming sound which goes away when I slow down. had my brakes and rotors replaced 1st of August,and mechanic didn't say anything else was wrong. everything I'm reading is saying its the bearings, but shouldn't those have been checked when brakes were ...

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The rear suspension is the attaching point for the control arms and other rear suspension components. Road salt and water can accumulate in and around the rear crossmember causing it to rust. Excessive rust could cause one or both rear control arms to separate from the crossmember resulting in a sudden change in vehicle handling, increasing the risk of a crash. Dealers will inspect the rear crossmember and repair or replace it as necessary to correct this concern.

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I purchased a 2009 Sonata GLS new in 2009. It now has over 90,000 miles on it and it is unquestionably the most reliable car I have ever owned. Handles nicely, economical to drive, fantastic warranty,dealer service departments very customer friendly and besides nornmal servicing has required nothing. Since I purchased my Hyundai my son has purchased an Elantra and my mother-in-law and my fat...

I remove the ignition switch i turn the key to got out the switch now i can not got the new switch in the key will not go to off .

My problem started very early with this 2009 Sonota that I bought brand new; First the dealer overfilled the engine with OIL; I was shocked and another Hyundai dealer let the OIL out and shamed the dealer for that. Also this car doesnt take over filling of the oil easy. It can cause bad damage to the engine valves. But the worst happened when at 20,000 thousand miles the Transaxle started Bumpi...

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