2003 lexus ls430 seized on highway while in motion!!! the car has a lengthy required maintenance up-keep history with one lexus dealership only. i have all the print outs since oct 2002 - 10,329.06 in minor upkeep...and or oil change, etc reg. maintenance. i think that we were charged for a couple of recalled items like a ext. light but we weren't told anyway the car has to date..3/2/2010 not been involved in a collision. the car has oil/water and was not damaged. it ran fine !!!!!!! no over heat light, no accelerating...nothing like that it is such a shame. i am up beat and was just looking for probably something simple like a tps or fuse... but has been said by lexus that they don't know what's wrong. i was shocked though because lexus does know it will be 14 thousand dollars though to repair. (a new engine) i have pleaded with the corporate office and they said that since the car has 130.000 miles it is not their resp. to help me with a solution. my family has purchased 4 vehicles from lexus. we have not had problems. why now are they turning their backs??? please help me i am renting a vehicle at a rate of $30 a day from enterprise and a single mother of two teenagers. tuition is due and this has left me struggling with what to do?? the car is paid for i am asking for some assistance and also to please investigate the possibility that this model also inherited the problems of the 2002 engines seizing issue but at any rate i am open to any and all assistance and advice. *tr