I JUST READ YOU ARE INVESTIGATING GM SUVS FOR DEFECTIVE GAS GAUGES. I HAVE A YEAR 2000 CHEVY SILVERADO AND THE GAS GAUGE HAS READ ERRONEOUSLY FOR THE PAST SIX OR SEVEN YEARS. I HAVE RUN OUT OF GAS SEVERAL TIMES,BUT HAVE NEVER HAD THE PROBLEM REPAIRED BECAUSE THE DEALER WANTS TO CHARGE ME AN ABSURD AMOUNT. I BELIEVE ITS A DESIGN …
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I JUST READ YOU ARE INVESTIGATING GM SUVS FOR DEFECTIVE GAS GAUGES. I HAVE A YEAR 2000 CHEVY SILVERADO AND THE GAS GAUGE HAS READ ERRONEOUSLY FOR THE PAST SIX OR SEVEN YEARS. I HAVE RUN OUT OF GAS SEVERAL TIMES,BUT HAVE NEVER HAD THE PROBLEM REPAIRED BECAUSE THE DEALER WANTS TO CHARGE ME AN ABSURD AMOUNT. I BELIEVE ITS A DESIGN FLAW THEY SHOULD REPAIR FOR FREE. I WOULD RECOMMEND YOU EXPAND YOUR INVESTIGATION TO INCLUDE GM PICKUPS BACK TO AT LEAST THE YEAR 2000. *TR
NHTSA ODI #10398623
60,000 miles · Mar 3, 2008
Fuel System, Other
I OWN A 2000 CHEVY SILVERADO Z71. WHEN I START MY TRUCK MY GAS GAUGE WILL STAY ON EMPTY EVEN WITH A FULL TANK OF GAS. IT WILL ALSO SHOW A HALF A TANK OF GAS WHEN I AM ACTUALLY EMPTY. THIS CAUSED ME TO RUN OUT OF GAS ON A BUSY INTERSTATE NEARLY CAUSING AN ACCIDENT WITH MY TWO CHILDREN IN THE TRUCK WITH ME. MY SISTER OWNS A 2000 G…
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I OWN A 2000 CHEVY SILVERADO Z71. WHEN I START MY TRUCK MY GAS GAUGE WILL STAY ON EMPTY EVEN WITH A FULL TANK OF GAS. IT WILL ALSO SHOW A HALF A TANK OF GAS WHEN I AM ACTUALLY EMPTY. THIS CAUSED ME TO RUN OUT OF GAS ON A BUSY INTERSTATE NEARLY CAUSING AN ACCIDENT WITH MY TWO CHILDREN IN THE TRUCK WITH ME. MY SISTER OWNS A 2000 GMC TRUCK LIKE MINE AND HER GAS GAUGE WILL NOT WORK AT ALL. SHE HAS RAN OUT OF GAS SEVERAL TIMES BECAUSE OF IT. ONCE ON I10 IN THE MIDDLE OF THE NIGHT ABOUT 30 TO 20 MILES FROM A TOWN. IT IS OBVIOUSLY A KNOW PROBLEM. IS GM WAITING FOR SOMEONE TO GET KILLED ON A HIGHWAY BEFORE THEY DECIDE TO FIX IT? *TR
NHTSA ODI #10219918
97,800 miles · Feb 21, 2008
Fuel System, Other
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE FUEL GAUGE INDICATED THAT THE VEHICLE WAS LOW ON FUEL WHEN IT WAS ACTUALLY FULL. THE FAILURE OCCURS WHILE DRIVING 50 MPH AND ALSO WHEN THE VEHICLE IS STOPPED. THE DEALER STATED THAT THE FAILURE WAS COMMON AMONG OTHER VEHICLES OF THE SAME MAKE AND MODEL. THE FAILURE AND…
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TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE FUEL GAUGE INDICATED THAT THE VEHICLE WAS LOW ON FUEL WHEN IT WAS ACTUALLY FULL. THE FAILURE OCCURS WHILE DRIVING 50 MPH AND ALSO WHEN THE VEHICLE IS STOPPED. THE DEALER STATED THAT THE FAILURE WAS COMMON AMONG OTHER VEHICLES OF THE SAME MAKE AND MODEL. THE FAILURE AND CURRENT MILEAGES WERE 97,800.
NHTSA ODI #10218720
45,000 miles · Jan 21, 2008
Fuel System, Other
GAS GAUGE DOES NOT OPERATE, HAS NOT FOR YEARS , ON MOST CHEVROLET TRUCKS. *TR
NHTSA ODI #10215600
Mileage unknown · Nov 11, 2007
Fuel System, Other
FUEL GAUGE ALTERNATES BETWEEN FULL AND EMPTY WITH LOW FUEL LIGHT WHEN EMPTY PURCHASED USED RECENTLY. *TR
NHTSA ODI #10208613
55,000 miles · Sep 8, 2007
Fuel System, Other
FUEL GAUGE FAILURE WHEN VEHICLE IS IN "PARK". LOW FUEL SIGNAL GOES ON. THEN WHEN THE VEHICLE IS IN DRIVE, THE GAUGE GOES TO FULL. THEN EVENTUALLY THE GAUGE GOES TO THE LEVEL OF THE FUEL. *JB
NHTSA ODI #10202263
91,200 miles · Dec 12, 2006
Fuel System, Other
I OWN A 2000 CHEVY SILVERADO (4.3) WITH 92K MILES. MY PROBLEM IS WITH THE FAULTY FUEL SENDING UNIT THAT LEFT ME STRANDED ON THE EXPRESSWAY AND ALMOST CAUSED AN ACCIDENT. THE GAS GAUGE INDICATED 1/2 TANK FULL. NOW THE GAUGE INDICATES EMPTY WHEN I FILL THE TANK COMPLETELY. THIS IS A VERY EXPENSIVE REPAIR THAT I THINK CHEVY SHOULD …
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I OWN A 2000 CHEVY SILVERADO (4.3) WITH 92K MILES. MY PROBLEM IS WITH THE FAULTY FUEL SENDING UNIT THAT LEFT ME STRANDED ON THE EXPRESSWAY AND ALMOST CAUSED AN ACCIDENT. THE GAS GAUGE INDICATED 1/2 TANK FULL. NOW THE GAUGE INDICATES EMPTY WHEN I FILL THE TANK COMPLETELY. THIS IS A VERY EXPENSIVE REPAIR THAT I THINK CHEVY SHOULD REPLACE I AM NOT THE ONLY ONE WITH THIS UNSTABLE PROBLEM. THE FUEL GAUGE IS ERRATIC AT ALL TIMES AND NOW I GAUGE MY TRAVELS BY USING THE ODOMETER AND ALLOWING ONLY 300 MILES PER FULL TANK. *JB
NHTSA ODI #10175937
Mileage unknown · Jan 7, 2006
Fuel System, OtherService Brakes, Hydraulic
2000 CHEVROLET SILVERADO 1500 PICKUP 12/30/05 I CALLED TO MAKE AN APPOINTMENT FOR THE ABS RECALL. 12/31 THE ABS LIGHT ON THE DASH CAME ON. THE DEALER COMPLETED THE RECALL WORK AND STATED THE ABS LIGHT WAS AN "ACTIVE FAILURE" CODE IN THE COMPUTER AND WAS NOT RELATED TO THE RECALL. REPAIR OF THIS FAULT WAS ESTIMATED $1,400-1900. …
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2000 CHEVROLET SILVERADO 1500 PICKUP 12/30/05 I CALLED TO MAKE AN APPOINTMENT FOR THE ABS RECALL. 12/31 THE ABS LIGHT ON THE DASH CAME ON. THE DEALER COMPLETED THE RECALL WORK AND STATED THE ABS LIGHT WAS AN "ACTIVE FAILURE" CODE IN THE COMPUTER AND WAS NOT RELATED TO THE RECALL. REPAIR OF THIS FAULT WAS ESTIMATED $1,400-1900. I HAVE ALSO PAID TO HAVE THE FUEL GAUGE FIXED. IT WENT FROM EMPTY TO FULL AT RANDOM AND HAS BEEN REPORTED AS A COMMON PROBLEM BUT HAS NOT BEEN RECALLED. *JB
NHTSA ODI #10147141
110,021 miles · Jan 28, 2005
Fuel System, OtherFire
I AM CURRENTLY WORKING BASED IN MEXICO. MY 2000 TAHOE IS MY FAMILY VEHICLE THAT I ONLY USE TO TRAVEL WITH MY FAMILY WITHIN MEXICO. ON FRIDAY THE 21ST OF JANUARY 2005 MY SON AND I WERE TRAVELING ON A STATE ROAD AND MY TAHOE CAUGHT ON FIRE GOING 50 MPH. TRAFIC ON THE ROAD WAS SIGNALING TO ME AS IF THERE WAS A PROBLEM BUT I CONT…
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I AM CURRENTLY WORKING BASED IN MEXICO. MY 2000 TAHOE IS MY FAMILY VEHICLE THAT I ONLY USE TO TRAVEL WITH MY FAMILY WITHIN MEXICO. ON FRIDAY THE 21ST OF JANUARY 2005 MY SON AND I WERE TRAVELING ON A STATE ROAD AND MY TAHOE CAUGHT ON FIRE GOING 50 MPH. TRAFIC ON THE ROAD WAS SIGNALING TO ME AS IF THERE WAS A PROBLEM BUT I CONTINUED TO DRIVE FOR ABOUT 100 YARDS BECAUSE ALL THE LEVES AND GAUGES WERE NORMAL ON THE TRUCK. I STOPPED IMMEDIATELY AFTER I SAW SOME SMOKE AND BY THE TIME I STOPPED THE TRUCK WAS IN FLAMES ON THE FRONT, UNDERNEATH AND REAR. I ONLY HAD TIME TO TAKE MY 6 YEAR OLD CHILD OUT OF THE TRUCK WHICH WAS THE MOST IMPORTANT ASPECT BUT THE TRUCK AND BELONGINGS WERE A TOTAL LOSS. THE FIRE DEPARTMENT COULD NOT STOP THE FIRE AS IT LASTED FOR 1 HOUR AND NOTHING BUT THE FRAME WAS LEFT OF THE TRUCK. WE WERE FORTUNATE THAT NOTHING HAPPENED TO MY CHILD AND I BUT THIS IS SOMETHING EXTEMELY DANGEROUS THAT SHOULD BE AVOIDED FOR FUTURE CUSTOMERS OF THIS VEHICLE. WE ALWAYS KEPT THIS VEHICLE ON TOP CONDITIONS AND WE HAVE NO IDEA WHY THIS WAS CAUSED OR HOW TO AVIOD THIS IN THE FUTURE. WE RECIEVED GREAT HELP FROM THE MEXICAN POLICE AND FIRE DEPARTMENT AS THEY TOOK CARE OF ALL THE ROAD DAMAGES AND THEY ALSO CLEARED ME FROM ANY DAMAGES TO THE CITY AS THIS IS NORMALY PAID FOR BY THE DRIVER. MY FAMILY IS THE MOST IMPORTANT THING IS THIS WORLD AND I AM SURE THAT OTHERS FEEL THE SAME ABOUT THEIR FAMILIES AND I HOPE GM VSN HELP WITH THIS ISSUE BY IMPROVING THIS VEHICLE. *AK
NHTSA ODI #10108131
Mileage unknown · Aug 31, 2004
Fuel System, Other
LOW FUEL LIGHT COMES ON EVEN WHEN THE TANK WAS JUST FILLED UP. MAINLY WHEN IDILING AND AFTER STARTING VECHICLE.*AK
NHTSA ODI #10088873
Official recalls
0
No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2
EA04011 · Parking Brake Failure
Opened Apr 9, 2004 · Closed May 10, 2005
Status: closed (inferred from source dates) · Parking Brake; Parking Brake:conventional; Parking Brake:conventional:mechanical; Parking Brake:conventional:mechanical:linkage And Cable
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Additional source detail variants (4)
Parking Brake:conventional
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Parking Brake:conventional:mechanical
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Parking Brake:conventional:mechanical:linkage And Cable
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Parking Brake
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
PE03057 · Parking Brake Failure
Opened Dec 8, 2003 · Closed Apr 9, 2004
Status: closed (inferred from source dates) · Parking Brake
ODI OPENED PE03-057 TO ASSESS PARKING BRAKE INEFFECTIVENESS IN THE SUBJECT VEHICLES.THESE VEHICLES ARE EQUIPPED WITH FOUR WHEEL DISC BRAKES THAT INCORPORATE A SINGLE-SHOE DRUM-IN-HAT PARKING BRAKE INDEPENDENT OF THE SERVICE BRAKES.COMPLAINT AND WARRANTY DATA INDICATE THAT THE PARKING BRAKE LININGS TEND TO WEAR OUT EARLY IN THE LIFE OF THE VEHICLE (AT AN AVERAGE OF 24 MONTHS IN SERVICE), REDUCING THE PARKING BRAKE SYSTEM'S TORQUE BELOW THAT NEEDED TO IMMOBILIZE THE VEHICLE.GM HAS ATTRIBUTED THIS ACCELERATED WEAR TO FOREIGN MATERIAL INTRUSION AND A FAILURE OF THE BRAKE SHOE TO PROPERLY SELF-CENTER WITHIN ITS BRAKE DRUM.EFFECTIVE WITH THE START OF MY 2003 PRODUCTION, A NEWER REDUCED FORCE HOLD-DOWN CLIP WAS INTRODUCED TO FACILITATE BRAKE SHOE DISENGAGEMENT FROM THE DRUM SURFACE.THIS PART IS ALSO AVAILABLE AT THE SERVICE LEVEL FOR THE MY 1999-2002 VEHICLES.GM HAS INDICATED THAT THE PAKING BRAKE IS INTENDED TO OPERATE IN CONJUNCTION WITH THE TRANSMISSION TO IMMOBILZE PARKED VEHICLES, AND THAT IN MANY CASES, ACCELERATED PARKING BRAKE LINING WEAR IS CAUSED BY ROUGH USE, VEHICLE MODIFICATIONS, AND DRIVING WITH THE PARKING ENGAGED. ODI HAS UPGRADED THE PRELIMINARY EVALUATION TO AN ENGINEERING ANALYSIS TO GATHER FURTHER INFORMATION CONCERNING PARKING BRAKE USAGE FACTORS AND THE CIRCUMSTANCES SURROUNDING THE SEVENTEEN REPORTED VEHICLE CRASHES.
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