One problem related to transmission gear slipping has been reported for the 2006 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Hyundai Elantra based on all problems reported for the 2006 Elantra.
I bought the car at 4400 miles shortly there after the transmission was slipping after repeated trips to the dealer they replaced it. Soon there after the speedometer and odometer stopped working, again, repeated trips to the dealer they then replaced the speed sensor and module for transmission. The next day the trans and speedometer were not working proper again, then the car is back there today, there telling me the trans is fine, and that now the instrument cluster is being replaced, I have been in and out with this car, its from north dakota and belonged to a keith olson, come to find out that this car may have been in a hit and run accident, with keith olson. Please help anyway you can. Its under warranty till 60,000 and the history since I have had it, is not good, including one time the brakes failed.