CAR BEGINS TO LURCH BOTH BACKING UP AND ACCELERATING IN THE LOW GEARS. THE COMPUTER ERRONEOUSLY TELLS THE CLUTCH TO ENGAGE, THUS BLOWING THE TRANSMISSION. I HAVE NECK PAIN FROM THE LURCHING; IT FEELS AS THOUGH YOU ARE GETTING HIT FROM BEHIND. BECAUSE OF THE JUMPING, IT COULD ALSO BE VERY EASY TO REAR END SOMEONE. MANY OWNERS HAVE REPORTED THIS ON VARIOUS BLOGS, INCLUDING 12 PAGES AT EDMUNDS.COM. THE COST TO REPLACE BOTH THE COMPUTER AND THE TRANSMISSION RANGES FROM $4000-8000 DEPENDING ON WHETHER OR NOT YOU USE THE DEALERSHIP. TOYOTA/LEXUS RECOGNIZES THIS AS A COMMON PROBLEM AND HAS CORRECTED IT IN NEWER MODELS, HOWEVER EVERY OLDER CAR HAS THIS DANGEROUS PROBLEM. *TR