NHTSA Complaint #10072623 — 2003 CHEVROLET SILVERADO

1. POOR RIDE, VIBRATION, WHILE DRIVING AT VARIOUS SPEEDS. MOSTLY BETWEEN 35 TO 50 MPH. HAD THE PROBLEM WITH "STOCK" TIRES. REPLACED WITH AFTER MARKET TIRES, SLIGHTLY LARGER. STILL HAD ANNOYING VIBRATION. TO A POINT THAT I DO NOT LIKE TO DRIVE THE VEHICLE! 2. FUEL ECONOMY SUCKS! I "UPGRADED" FROM MY '92 GMC PICKUP WHICH GAVE ME 12 TO 14 MPG AROUND TOWN TO 15 TO 18 MPG ON A TRIP; TO MY "NEW" CHEV. WHICH IS GOOD FOR ABOUT 9.5 TO 9.8 MPG AROUND TOWN AND THE BEST EVER, ON A TRIP WAS 13.4 MPG!!! 3. THE BENCH-TYPE SEAT IS NOT ADJUSTABLE TO REMOVE THE "VEE" FEELING WHEN DRIVING. 4. THE SELF-DARKENING MIRRORS ARE A HAZARD WHEN TRYING TO BACKUP OR CHANGE LANES! 5. THE PASSENGER FRONT SEATBELT LOCKSUP AND CAN'T BE FREED UNLESS YOU UNBUCKLE AND REATTACH THE BELT, ONLY TO HAVE IT LOCKUP AGAIN! I HAVE HAD THE VEHICLE BACK TO TWO DIFFERENT DEALERS ON THREE SEPERATE OCCASIONS PRINCIPALLY FOR THE MILEAGE AND THE VERY ANNOYING VIBRATION! I HAVE CONTACTED GENERAL MOTORS, ALSO WITH NO SUCCESS! I'VE CHANGED TIRES, ASKED TO HAVE THE TRANSMISSION CHECKED FOR THE VIBRATION, ONLY TO HAVE SEPERATE SERVICE MANAGERS TELL ME THAT "IT SEEMS OKAY TO ME, AND THAT THERE'S NOTHING ON THE COMPUTER TO INDICATE A PROBLEM!" AND "YOU PUT BIGGER TIRES ON THE TRUCK! YOU CAN'T DO THAT!" I JUST "CELEBRATED" (?!!!) MY FIRST ANNIVERSARY WITH THE TRUCK AND ITS BEEN A MISERABLE YEAR!*AK