2007 GMC SIERRA 3500 Complaints

VEHICLE IS EQUIPPED WITH FACTORY INTEGRATED TRAILER BRAKE CONTROL (ITBC). BACK IN JAN., 2011 I GOT A MESSAGE IN THE DRIVER INFORMATION CENTER (DIC): IT SAID "SERVICE TRAILER BRAKE SYSTEM". MESSAGE INTERMITTENT AT FIRST, AND THEN MORE FREQUENTLY , AND THEN MESSAGE APPEARED AT START-UP EVERY TIME. DEALER FIXED PROBLEM. IN APRIL OF 2013 THE SAME PROBLEM HAS RETURNED IN EXACTLY THE SAME PATTERN AS THE PREVIOUS FAULT. THIS A FAULTY SYSTEM AT BEST, AND HAS SERIOUS DESIGN FLAWS. THE SERIOUS SAFETY ISSUE HERE IS: WHEN THE "SERVICE TRAILER BRAKE SYSTEM" MESSAGE APPEARS ON THE DIC; ALL TRAILER BRAKING IS LOST. THERE IS NO DEFAULT OR BACK-UP SYSTEM IN WHICH TO APPLY TRAILER BRAKES. EVEN THE MANUAL TRAILER BRAKE CONTROL BUILT INTO THE ITBC IS ALSO RENDERED INOPERABLE. THIS ITBC FAILURE COULD HAPPEN AT ANY TIME, AND AT ANY SPEED. THIS VEHICLE IS RATED TO TOW A TRAILER OF 10,000LBS. PLUS. MANY PEOPLES LIVES COULD BE PUT IN JEOPARDY IF SUDDENLY ALL TRAILER BRAKING WERE LOST ON A STEEP DOWNGRADE. THIS ITBC SYSTEM NEEDS TO BE RE-DESIGNED SO THAT A VEHICLE OPERATOR CAN OPERATE THE TRAILER BRAKES MANUALLY IF AUTOMATIC TRAILER BRAKE CONTROL IS LOST WHEN THE OPERATOR GETS A "SERVICE TRAILER BRAKE SYSTEM" ON THE DIC. *TR

TRANSMISSION COOLER LINE LEAK COULD LEAK OUT ALL FLUID AND CAUSE TRANSMISSION FAILURE. THE CONSUMER WAS INFORMED THE VEHICLE NEEDED TRANSMISSION COOLER LINES, TRANSMISSION FLUID AND CONDITIONER AT A COST OF $ 822.32. THE SERVICE MANAGER AGREED TO CUT THE BILL TO $411.16. THE CONSUMER CONTACTED GM CUSTOMER SERVICE TO MAKE A COMPLAINT. AFTER AN INVESTIGATION, THE CONSUMER WAS INFORMED BY GM THAT THE DEALER STATED THE FAILURE WAS CAUSED BY THE AGE OF THE VEHICLE AND GM WOULD NOT COVER THE COST OF THE PART. THE CONSUMER STATED THE PART WAS MADE OF DEFECTIVE MATERIALS AND SHOULD HAVE BEEN RECALLED. WHEN THE CONSUMER CONTACTED THE DEALER, THEY STATED THEY HAD NOT MADE A DIAGNOSIS OF THE FAILURE AND THE PARTS WERE SENT TO GM TO BE EXAMINED. UPDATED IVOQ 01/04/12 *JB *TR

TL* THE CONTACT OWNS A 2007 GMC SIERRA 3500. THE CONTACT STATED THAT THE VEHICLE WAS BURNING OIL MORE RAPIDLY THAN NORMAL. THE MANUFACTURER WAS NOTIFIED AND INFORMED HIM THAT THE VEHICLE COULD BURN ONE FULL QUART OF OIL EVERY 1,000 MILES TRAVELED. THE DEALER RESEALED THE TURBO BUT TO NO AVAIL. IN ADDITION, WHEN DRIVING OVER ROAD BUMPS HE COULD HEAR THE DOORS SHIFTING INSIDE OF THE DOOR FRAME. THE MANUFACTURER ADVISED THAT THE FAILURE WAS NORMAL. THE DEALER MADE REPAIRS TO THE BODY BOLTS BUT THE FAILURE PERSISTED. THE DEALER ADVISED THAT HE SHOULD OIL THE DOORS TO REDUCE THE AMOUNT OF NOISE. THE FAILURE MILEAGE WAS 36,000 AND THE CURRENT MILEAGE WAS 58,000.

TL * THE CONTACT OWNS 2007 GMC SIERRA 3500. WHILE DRIVING AT SPEEDS OF 45 MPH THE CONTACT DEPRESSED THE BRAKES AND THE BRAKE PEDAL FELL FURTHER ONTO THE FLOOR BOARD THAN USUAL BEFORE THE VEHICLE WOULD STOP. THE FAILURE INCREASED THE BRAKE STOPPING DISTANCE. THE CONTACT STATED THAT THE FAILURE WOULD OCCUR WHENEVER THE VEHICLE WAS DRIVEN. THE DEALER WAS UNABLE TO DUPLICATE OR DIAGNOSE THE FAILURE EIGHT TIMES. THE DEALER ADVISED THE CONTACT THAT THE VEHICLE WAS SAFE TO DRIVE AND THERE WERE NO FAILURES. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE CURRENT MILEAGE WAS 49,000 AND THE FAILURE MILEAGE WAS 2,000.

TL*THE CONTACT OWNS A 2007 GMC SIERRA 3500. WHILE DRIVING 45 MPH THE BRAKE LIGHT WARNING AND THE ABS LIGHTS ILLUMINATED ON THE INSTRUMENTAL PANEL. THE HEADLIGHTS BEGAN TO FLICKER; HOWEVER, AFTER SHUTTING THE ENGINE OFF AND CHECKING UNDER THE HOOD THE CONTACT WAS UNABLE TO DIAGNOSE THE FAILURE. WHEN HE RESTARTED THE VEHICLE THE BRAKE LIGHT SHUT OFF AND WITHOUT WARNING, THE TRANSMISSION BEGAN TO SHIFT UP AND DOWN AT WILL. THE DEALER STATED THAT THE COMPUTER DID NOT REGISTER ANY FAILURE CODES. THE DEALER ALSO STATED THAT IF THE FAILURE RECURRED TO ALLOW THEM TO DIAGNOSE THE FAILURE BEFORE SHUTTING THE ENGINE OFF. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 12990 AND THE CURRENT MILEAGE WAS 13050.

TL*THE CONTACT OWNS A 2007 GMC SIERRA 3500. AFTER THE CONTACT'S SPOUSE HAD DRIVEN THE VEHICLE FOR SEVERAL HOURS, IT WOULD NO LONGER MOVE. THE VEHICLE WAS TOWED TO A DEALER AND THEY STATED THAT THE DRIVER'S SIDE REAR AXLE SEPARATED FROM THE DIFFERENTIAL AND THE SHOCK AND LEAF SPRING WERE THE ONLY PARTS HOLDING IT TOGETHER. THE CURRENT AND FAILURE MILEAGES WERE 114,000.