Vehicle Shudder Problems of Hyundai Veracruz

Previously, my 2007 Veracruz limited had a check engine light illuminate on 8/20/08 while my wife was driving with our young daughter car. The car jolted and vibrated and would not accelerate. I was advised by the local dealer the car had a throttle warning code 2106, but that it cycled through and was fine without repair. The dealer stated they test drove it for 30 miles to ensure there were no issues, and then returned the car to us. Following that the car was driven without incident until it occurred again on 9/17/08, with my wife driving our young daughter again. This time I was told the following errors appeared: 2135 - throttle body 2106 - ? 1295 - ? I was advised a service bulletin had been issued to dealers in February for this, and they were authorized to replace the throttle body unit, which would take care of everything. The dealer stated they had replaced the unit on 3-4 cars to date and that it took care of the issue I was having. Following the throttle body unit replacement, we had no further issues until last night. On the way home from dinner, my wife was driving our daughter again, the same incident occurred, 6/26/09. This makes three times in less than a year. I have noticed this seems to be a common issue based on similar reports of other owners in online forums. This is the third time this has occurred. Fortunately there were not any injuries or damage. My primary concern is the safety and security of my wife and daughter. If she had been passing on a two lane highway this could have been fatal. I note that from postings on online forums there have been accidents due to this issue.

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The contact owns a 2007 Hyundai Veracruz. While driving between 35- 45 mph, the vehicle began to jerk back and forth. The entire vehicle began to shake momentarily once it came to a stop. After the failure occurs, the vehicle operates normally for approximately two weeks. The failure is intermittent and the vehicle has not been diagnosed by the dealer. The current mileage was 14,728 and failure mileage was 7,832. Updated 05/28/08 the failure had been diagnosed and it was determined that the vehicle needed a software update. Updated 05/28/08.