NHTSA Complaint #10373504 — 2005 CHEVROLET SUBURBAN

MY 2005 CHEVROLET SUBURBAN HAS 79,985 MILES AND THIS WEEK WHILE DRIVING ROUTE 95 (70 MPH HIGHWAY IN THE SOUTH) FROM NEW JERSEY TO SOUTH CAROLINA MY SPEEDOMETER STARTED SHOWING A MUCH HIGHER SPEED THEN I WAS TRAVELING. I WAS USING MY GPS AT THE TIME AND IT SAID I WAS DOING 69 MPH WHILE MY GAUGE SHOWED A CONSTANT CLIMB TILL IT REACHED 120 MPH AND FLAT LINED BEYOND THAT POINT. THIS WAS A 1600 MILE ROUND TRIP AND IF I HAD NOT HAD MY GPS WITH ME I WOULD NOT KNOW HOW FAST OR SLOW I WAS GOING. I WAS WAITING FOR SOMETHING ELSE TO GO WRONG. WHILE IN SOUTH CAROLINA I WENT TO RECALLS ON THE INTERNET WITH 2005 GM SUV'S AND FOUND A WHOLE BUNCH OF SIMILAR COMPLAINTS, YET GM (CHEVROLET) HAS NOT DONE ANYTHING THAT I COULD FIND. I RETURNED HOME TODAY AND CALLED MY LOCAL CHEVROLET DEALER AND EXPLAINED TO THE SERVICE DEPARTMENT WHAT HAD HAPPENED AND THEY SAID THEY NEVER HEARD OF THIS AND GAVE ME AN APPOINTMENT FOR NEXT MONDAY 1/3/2011 TO BRING IN THE SUV. SINCE THIS CAR IS OUT OF SERVICE I AM HOLDING MY BREATH AS TO WHAT THE BILL COULD BE. THIS IS A VERY DANGEROUS THING, I COULD BE NOT LOOKING AT THE GAUGE AND BE RUNNING RIGHT INTO A HIGH SPEED ERROR AND PUTTING MY FAMILY IN HARMS WAY. CAN ANYONE HELP? *TR