2009 Hyundai Sonata Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2009 Hyundai Sonata
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2009 Hyundai Sonata ProblemsConfirm 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.
Problems with the accelerator pedal position switch may cause the Check Engine Light to illuminate; an improved switch is available to fix this problem.
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.
2009 Hyundai Sonata QuestionsDischarging Refrigerant from Overcharged A/C System (2 answers)
So my "expert" roommate decided he'd add almost a whole can of r134a to my 2009 Sonata and I believe it's overfilled. How do you discharge and get the pressure back down around the correct amount?
Since the starter was replaced the dome and reading lights don't work, the remote key lock doesn't work the clock doesn't work and the TPMS light will not shut off.
2009 Hyundai Sonata RecallsRust Concern with Rear Suspension
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.