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And when I do have the instrumental clusters (gauges) then they will go around erratically. Lately when I lock the Tahoe up and unlock the vehicle when I start it I will have the speedometer and gas gauge and the big gauge that is beside the speedometer. But the other gauges just go crazy. And when I go down the road the speedometer will jump ahead about 20 miles and then will come back to the normal speed that I am going. I was wondering if you increased the warranty to the instrument cluster panel? I heard that you did too 70,000 miles.