One problem related to automatic transmission control module has 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.
Complaint centers on a pattern of deceptive and misleading representations by Hyundai dealership in las vegas, planet Hyundai. Car was brought to them shortly after July 1, 2007, with a driver complaint of failure to upshift properly resulting in excessively high rpms. Dealer responded by resetting the computer codes after consulting with manufacturer in California, allegedly. Car was returned to owner with promise that if this reoccurred, transmission would be replaced, as per manufacturers direction. Subsequently, a week later the car was returned to dealer with the same problem. The car has been on the dealer's lot since middle of July, no work has been performed, dealer refuses to replace transmission, and car has suffered extensive body damage while on the lot. Dealer adamantly refuses to perform warranty work on car.