Two problems related to rear suspension have been reported for the 2006 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Hyundai Sonata based on all problems reported for the 2006 Sonata.
The Hyundai Sonata mine is an'06 has a strut problem in that it "thunks" on certain road surfaces and back into or out of driveways, I have tried in vain to get Hyundai corporate to do something about this problem only to fall on deaf ears, the edmonds car space forum is full of complaints about his problem. Factory reps say they cannot hear anything, dealers say there is nothing wrong with the car and it is up to corporate to issue a recall on these vehicles. This is a totally frustrating problem that they see fit to ignore and yet they have tsbs on two other of their vehicles with the same identical problem but choose to ignore the Sonata and azera which have the same problem. Everybody on the forum has tried in vain to get Hyundai corporate to do something about, but nothing we can do is moving them.
Thumping noise from rear of car almost all the time, all road types and all speeds. Dealers will not acknowledge that the know about such problems. Seems to happen during hot weather(above 80 degrees) has been going on at least 3 years and getting worse. Many complaints on edmonds. Com but Hyundai service tech at pinehurst refused to recognize that as a valid site. Most people that ride in car get scared that car is going to come apart. Wife works as realtor and is affected by problem.