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.
Poor Shift Quailty of Automatic Transmission on Hyundai Sonata
Average mileage: 62,000 (44,000–80,000)
1 model year affected: 2006
3 people reported this problem
2 people shared problem details
2006 Hyundai Sonata80,000Visitor
Morning sickness from delay from 2nd to third
2006 Hyundai Sonata44,000Visitor
Poor shifting all together.
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