Recreational Vehicle Lpg Tank Valve/gauge problems of the 2005 Chevrolet Impala

I bought this car in 2006. One year later I noticed my speedometer was not working. I searched on line and found many complaints about the speedometer failing to work. Right after that the temperature gauge and the fuel indicator stopped working. I went on line and found that chevy trucks had been recalled for cluster failures. I took my car in to a chevy dealer and was told I'd have to pay $700+ for the repair. The cluster hasn't worked all these years and I've had several instances of the car almost overheating, the car running out of gas, and being pulled over for exceeding the speed limit because the cluster didn't work. How can gm & chevy say they stand by their products and not recognize deficiencies in their own products unless it makes national news. I've held onto this car and have maintained well so I can brag about longevity because of the care I take. I cannot brag about gm/Chevrolet customer service or responsiveness, or customer loyalty. After years of buying well made japanese cars I bought american. Now I wonder why.

Fuel stopped working. Temp gauge as well.