NHTSA Complaint #10925500 — 2007 CHEVROLET TAHOE

I HAVE TWO CRACKS, ONE LOCATED ON THE DRIVER SIDE DASHBOARD AND ONE ON THE PASSENGER SIDE ABOVE THE AIRBAG. NOTHING HAS BEEN DONE TO PRODUCE SUCH PROBLEM. I HAVE ALSO HAD TO REPLACE MY HEATER CORE INPUT VALVE. I HAVE READ THAT THIS HAS TO DO WITH THE FACT THAT THE VEHICLE USES DEX-COOL. I AM UNSURE OF WHAT TO DO WITH THE FACT THAT DEX-COOL HAS BEEN FOUND TO EAT AWAY AT HOSES, O-RINGS, GASKETS, AND OTHER PARTS OF WHICH DEX-COOL COMES INTO CONTACT WITH. I WOULD ALSO LIKE TO REPORT THAT MY OIL PRESSURE SENDING UNIT ALSO NEEDS TO BE REPLACED, IT IS NO LONGER SENDING PRESSURE READINGS TO THE DASHBOARD. I HAVE READ THAT THIS IS A VERY POPULAR PROBLEM WITH MANY CHEVROLET VEHICLE.