Acceleration failure gas pedal un-responsive has occurred on multiple occasions over the past few months. Mileage at onset approx. 28,000, current mileage 37,000. 1- first occurrence June 13th 2010 traveling on freeway when loss of acceleration caused vehicle to become dangerous as navigation off the highway was reliant on drifting to shoulder with no power; once off the road turning off and restarting the engine caused the gas pedal to reengage - however during the 4 hour trip the issue repeated 7 times with the most dangerous occurrence in an area of construction where no shoulder was available to pull off. As this issue occurred on a Sunday, taking the vehicle in for service was not an option until Monday, and during the waiting period the check engine light was no longer illuminated and therefore the code for investigation unavailable. 2-issue occurred again on Saturday, July 30, 2010 while traveling on the highway after one hour of travel and repeated every 10-15 miles; on this date turning off and restarting the engine multiple times was required to regain gas pedal control. Serious safety issue when the loss of power was experienced while passing traffic and navigation off the road from the passing lane required returning to the right lane in high traffic with no ability to adjust speed. On the 2.5 hour return commute the issue did not resurface. 3- the issue again repeated on Sunday, August 1, 2010 while traveling on arterial roads, during the 45 minute commute the issue repeated 3 times at varying speeds from 45 - 60 mph. Young automotive group in lansing was contacted first thing this morning and the vehicle is scheduled for next available service on Tuesday, August 3rd, 2010.

- Lansing, MI, USA

Vehicle stallled with out warning at 60 mph, throttle position sensor failed. This is the second one in our fleet of 4 2008 Kia Sedona's. searching the internet, and talking to the dealer this is a huge problem. I requested Kia replace this part on the other two 2008 Sedona's, they said not until it throws a code. We also have 2 2010 Sedona's, I do not know if they have redesigned the part. For the 2008, this is a 50% failure rate and a safety hazard stalling at any speed is a safety hazard.

- Pleasantville, NJ, USA