Recreational Vehicle Lpg Tank Valve/gauge problems of the 2006 Toyota Corolla

Manufacturing defect with odometers in Toyota 2006. It is the federal law that mandate functional odometer. It appears that digital gauge in some Toyota cars was programmed to disconnect odometer at 299999 millage. Not only the replacement of odometer cost $600. 00 but the new odometer will have to be set at 0 zero millage which is incorrect and fraudulent. Toyota odometer for whatever and unknown reason don't go pass 300000 miles. How otherwise the owner should keep a track of millage. Toyota doesn't seems to recognize this defect as a reason for recall and/or reimbursement. So far vehicle is in operation with millage stacked at 299999.