NHTSA Complaint #10253512 — 2005 CHEVROLET AVALANCHE 1500

SPEEDOMETER HAS GONE "WILD". FOR EXAMPLE AT 35 MPH IT WILL READ ANYWHERE FROM 60 TO 140 MPH AND WHEN ENGINE IS TURNED OFF MAY ONLY DROP TO 30 MPH. HAPPENING AS A DAILY EVENT FOR THE PAST WEEK ON MY 2005 AVALANCHE WHICH HAS 47000 MILES ON ODOMETER. CHECKING WITH DEALER SERVICE MANAGER TOMORROW BUT UNDERSTAND FROM MANY OTHER OWNERS THAT GM COVERAGE FOR THIS PROBLEM ONLY COVERS THE 2002 TO 2004 MODEL YEARS EVEN THOUGH MY AVALANCHE HAS THE SAME CLUSTER AND STEP MOTOR THAT CONTROLS THE SPEEDOMETER WHICH I AM FINDING IS BEING REPORTED BY OWNERS IN LARGE NUMBERS AS DEFECTIVE. GM NEEDS TO ADDRESS THIS ISSUE WITH THEIR LOYAL CHEVROLET OWNERS IF THEY WISH TO MAINTAIN THEIR RETURN BUSINESS. *TR