2000 GMC Sierra 2500

THE PRELIMINARY EVAULATION IS BEING UPGRADED.DURING THE EA ODI WILL LIMITITS INVESTIGATION TO ONLY THOSE VEHICLES EQUIPPED WITH A HYDRO-BOOST SYSTEM, WHICH PROVIDES POWER ASSIST TO THE BRAKING AND STEERING SYTEMS.VACCUUM BRAKE BOOSTER VEHICLES ARE EXCLUDED.ODI HASEXPANDED THE SCOPE OF THE EA TO INCLUDE MODEL YEARS2003 AND 2004, ASDURING THE PE, ODI LEARNED THAT THE HYDROBOAST PUMPS WERE MODIFIED IN FEBRAURY 2004.THEREFORE,ODI HAS EXPANDED THE SCOPE TO INCLUDE THE ADDITIONAL MODEL YEARS.ODI'S IS CONCERNED BECAUSE THISISA SUDDEN FAILURE THAT AFFECTS TWO CRITICAL SYSTEMS OF THE VEHICLE, BRAKES AND STEERING, AT THE SAME TIME.THE ABILITY OF THE OPERATOR TO HANDLE THE DUAL FAILURES IS A CONCERN. FURTHER, THESE VEHICLES TEND TO BE WORK VEHICLES, WITH SOME OVER 10,000 POUNDS GVWR AND MANY EQUIPPED TO PULL LARGE TRAILERS.DUAL FAILURES OF HEAVILY LOADED VEHICLES AND VEHICLES PULLING TRAILERS FURTHER INCREASES THE SAFETY RISK.ODI PLANS TO CONDUCT TESTING TO QUANTIFY THE BRAKING AND STEERING PERFORMANCE DEGRADATION AND THE IMPACT ON SAFE VEHICLE CONTROL, WHEN A HYDROBOAST PUMP FAILS.

The contact owns a 2000 GMC Sierra 2500. The contact stated that the spare tire detached from the vehicle after the cable securing the spare tire fractured. The contact discovered the failure upon returning to the residence from an errand and found the spare tire in the driveway. No warning lights illuminated, and no unusual sounds occurred prior to the failure. The contact expressed concern that the detached spare tire could become a road hazard and increase the risk of a crash. The vehicle was not taken to a dealer. The manufacturer was not notified of the failure. The failure mileage was approximately 178,000.

NHTSA ID

11749361

Incident

Jul 5, 2026

Mileage

178,000 mi

WHILE DRIVING THE BRAKE AND ABS LIGHTS ON THE INSTRUMENT PANEL LIGHT UP. THIS HAS OCCURRED WHILE DRIVING OF THE FREEWAY AND ON CITY STREETS. SOMETIMES THESE LIGHTS GO OFF AND SOMETIMES THEY REMAIN LIGHTED. WHEN THIS HAPPENS I FEAR THAT THERE IS A PROBLEM WITH THE BRAKES AND HAVE TAKEN THIS MATTER TO A MECHANIC. THE BRAKES WERE EXAMINED AND HE FOUND NOTHING WRONG. THIS IS VERY STARTLING TO THE DRIVER AND OF GREAT CONCERN. THIS APPEARS ON INTERNET SEARCHES AND IT APPEARS THAT 100,000 PLUS INDIVIDUALS HAVE THIS PROBLEM. I HAVE CONTACTED THE DEALER AND OBVIOUSLY THIS MATTER HAS BEEN BROUGHT TO THERE ATTENTION. YET THEY CLAIM THEY ARE UNFAMILIAR AND WANT TO CHARGE $600 TO DIAGNOSE AND THEN LIKELY MORE TO FIX. THIS IS OBVIOUSLY A LIE AS THERE IS NO WAY THAT ONE COULD BE READING SO MUCH ABOUT THIS ON THE INTERNET IF IT WAS NOT A PROBLEM IN THE GMC SIERRA TRUCKS. SOME CLAIM IT IS A FAULTY CIRCUIT BOARD WHILE OTHERS HAVE LOST THE USE OF THEIR BRAKES. THIS IS OF GREAT CONCERN. THIS OCCURS WHILE DRIVING AND THE VEHICLE IS IN MOTION AND SOMETIMES AT HIGH SPEEDS ON A FREEWAY.

NHTSA ID

11076167

Incident

Dec 23, 2017

Mileage

75,000 mi

I PURCHASED THIS TRUCK USED AND WAS ABLE TO USE FOR A BOUT A MONTH BEFORE BOTH REAR SPRING PERCHES BROKE ALLOWING THE SPRINGS TO REST UNDER THE PICKUP BODY, AFTER REPLACING THEM THE BRAKE LINES RUPTURED BECAUSE OF RUST ANOTHER POOR QUALITY PRODUCT FROM GM !

NHTSA ID

11052382

Incident

Aug 30, 2017

Mileage

168,000 mi

BRAKE LINES RUSTED TO POINT OF REPLACEMENT

NHTSA ID

11016132

Incident

Aug 17, 2017

Mileage

190,000 mi

GMC TRUCK FRAMES CRACKING, ROTTING OUT, BRAKING DUE TO POOR DESIGN AND COATING AND GM WON'T STEP UP AND TAKE RESPONSIBILITY AS TOYOTA HAS. THE CONSUMER GETS AN UNSAFE VEHICLE BECAUSE OF FRAMES GIVING OUT WELL BEFORE THE BODY, THE FRAMES SHOULD BE STRONG. IN UNDER 2 YEARS THE FRAME WENT FROM STRONG AND SAFE TO NOW RUSTED UP SCRAP METAL. AMERICAN QUALITY SHOULD BE OF GREAT STANDARDS IN MY UP MOST OPINION BEING AN ARMY VETERAN. GENERAL MOTORS SHOULD COMPANSATE OWNERS OR BUY THEM BACK AS TOYOTA HAS.

NHTSA ID

10970893

Incident

Jan 1, 2017

TL* THE CONTACT OWNS A 2000 GMC SIERRA 2500. WHILE DRIVING APPROXIMATELY 35 MPH, THE REAR OF THE VEHICLE SLIGHTLY LOWERED TOWARDS THE GROUND. THE VEHICLE WAS DRIVEN WITH CAUTION TO THE CONTACT'S RESIDENCE. THE CONTACT INSPECTED THE VEHICLE AND NOTICED THAT THAT THE DRIVER SIDE MAIN FRAME RAIL WAS FRACTURED IN THE CENTER. ADDITIONALLY, THE PASSENGER SIDE MAIN RAIL WAS PARTIALLY FRACTURED. THE FAILURE WAS BEYOND REPAIR. THE CONTACT MENTIONED THAT THE BRAKE LINE AND REAR CROSS MEMBER NEAR THE FUEL TANK WERE COMPLETELY CORRODED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 92,000.

NHTSA ID

10881739

Incident

Oct 23, 2000

Mileage

92,000 mi

I WAS TURNING AROUND IN MY DRIVEWAY, WHEN SUDDENLY THE BRAKE PEDDLE WENT TO THE FLOOR AND ALL BRAKING POWER WAS LOST. TRIED PUMPING THE BRAKES MULTIPLE TIMES WITH NO SUCCESS. THERE WAS NO WARNING (LIGHTS OR OTHERWISE) BEFORE THE INCIDENT, AND NO DASH LIGHTS LIT DURING THE INCIDENT EITHER. *TR

NHTSA ID

10678693

Incident

Jan 21, 2015

Mileage

68,700 mi

FRONT CROSSMEMBER WELDS SEVERELY RUSTED AND ROTTED OUT. CROSSMEMBER ABOUT READY TO BREAK LOOSE FROM FRAME. FRONT FRAME RAILS SEVERELY RUSTED AND ROTTED OUT. FRONT SUSPENSION PARTS SEVERELY RUSTED AND ROTTING AWAY. REAR FRAME SEVERELY RUSTED AND ROTTED OUT. SHOCK MOUNTS ABOUT READY TO BREAK LOOSE FROM FRAME. ABSOLUTELY UNACCEPTABLE AND PATHETIC FOR A 13 YEAR OLD, 32,000 DOLLAR TRUCK TO BE UN-DRIVABLE AND IN THIS CONDITION. *TR

NHTSA ID

10597059

Incident

Jun 2, 2014

Mileage

65,000 mi

This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.

GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.

This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.

This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.

This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.