What are some of the 2006 lexus es330 transmission problems?

The 2006 Lexus ES330 has been faulted for experiencing transmission problems at under 50,000 miles, including surging, jerking and hesitating at lower speeds, ranging from 0 to 10 mph. Other reports detail gear "slippage" when ascending or descending hills accompanied by hard shifting. Owners are often advised the behavior is "normal" and repairs fail to address the issue. Mechanics claim transmission issues are a standard feature of a "drive by wire" system or caused by computer software glitches. Complaints also involve "lurching" forward and intermittent hesitation while making turns. The ES330 model experiences all the above tranny problems at low-middle mileage levels and is plagued by numerous and consistent complaints that center around its malfunction and unreliability.