IllustrationON 9-25-06 I WAS DRIVING TO WORK AND LOST MY BRAKES . AFTER STOPPING I NOTICED BRAKE FLUID LEAKING FROM UNDER MY PICKUP .TOOK THE TRUCK TO THE DEALER AND WAS TOLD THE HYDRAULIC BRAKE LINE WAS CORRODED FROM THE FRONT OF THE TRUCK TO THE BACK .HAVING BRAKE LINE REPLACED . *NM
2000 GMC Sierra 1500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2000 GMC Sierra 1500 do not stand out strongly from the model-year median of 181.
About this comparison →How this year compares
Owner complaints by model year
Compare all Sierra 1500 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
90–25K
1025–50K
3550–75K
3275–100K
40100–150K
26150K+
152 reports with mileage · 29 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Service Brakes, Hydraulic. Review the 78 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 40 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 11 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
10 crash reports0 fire reports3 injury reports
What owners actually said
181 reportsMY 2000 GMC PICK UP TRUCK HAS A LOUD ENGINE NOISE REFERRED TO AS PISTON SLAP. THE NOISE HAS BEEN PRESENT SINCE I PURCHASED THE VEHICLE. I HAVE SINCE FOUND THAT THIS IS A COMMON DEFECT WITH SOME GM ENGINES. THE DEALER STATES THAT THERE IS NOTHING WRONG WITH MY VEHICLE BUT MANY WEB SITES DESCRIBE IT AS A MANUFACTURING & DESIGN …
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MY 2000 GMC PICK UP TRUCK HAS A LOUD ENGINE NOISE REFERRED TO AS PISTON SLAP. THE NOISE HAS BEEN PRESENT SINCE I PURCHASED THE VEHICLE. I HAVE SINCE FOUND THAT THIS IS A COMMON DEFECT WITH SOME GM ENGINES. THE DEALER STATES THAT THERE IS NOTHING WRONG WITH MY VEHICLE BUT MANY WEB SITES DESCRIBE IT AS A MANUFACTURING & DESIGN DEFECT. I BELIEVE THIS CAUSES DECREASED PERFORMANCE AND INCREASED FUEL CONSUMPTION. *NM
GAS GAUGE NOT RESPONDING CORRECTLY GIVING INCORRECT READING. GAUGE IS SPORADIC MOSTLY WHEN TANK IS FULL , HAVE SOME CONCERN THAT ELECTRICAL FIRE MAY OCCUR DUE TO ELECTRICAL SPARK IN FUEL TANK. I BELIEVE A RECALL SHOULD BE DONE TO CORRECT THIS MATTER. *JB
FUEL GAUGE READING INCORRECTLY ON MY 2000 GMC SIERRA. *JB
DT*: THE CONTACT STATED WHILE DRIVING 25MPH THE ABS LIGHT ILLUMINATED. THE VEHICLE WAS PULLED OFF THE ROAD WITHOUT INCIDENT. THE BRAKE FLUID WAS CHECKED AND THEN THE VEHICLE WAS DRIVEN TO THE CONTACT RESIDENTS. WHEN THE VEHICLE WAS TUNED OFF, THE ABS MODULATOR WAS OBSERVED TO BE STILL RUNNING. THE FUSE TO THE MODULATOR WAS …
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DT*: THE CONTACT STATED WHILE DRIVING 25MPH THE ABS LIGHT ILLUMINATED. THE VEHICLE WAS PULLED OFF THE ROAD WITHOUT INCIDENT. THE BRAKE FLUID WAS CHECKED AND THEN THE VEHICLE WAS DRIVEN TO THE CONTACT RESIDENTS. WHEN THE VEHICLE WAS TUNED OFF, THE ABS MODULATOR WAS OBSERVED TO BE STILL RUNNING. THE FUSE TO THE MODULATOR WAS DISCONNECTED AND TAKEN OUT. THE DEALER STATED THE ABS MODULATOR NEEDED TO BE REPLACED. THE MANUFACTURER HAS NOT BEEN
THIS IS AN ONGOING PROBLEM WITH THE VEHICLE THE THROTTLE STICKS IN THE IDLE POSITION WHEN THE GAS PEDAL IS RELEASED. IT TAKES A VERY FIRM PUSH TO RELEASE THE THROTTLE AND WHEN IT DOES RELEASE THE VEHICLE LURCHES FORWARD. COMPLAINTS TO THE DEALER RESULT IN A RECOMMENDATION TO HAVE THE FUEL SYSTEM FLUSHED ON AN ONGOING BASIS. SOME…
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THIS IS AN ONGOING PROBLEM WITH THE VEHICLE THE THROTTLE STICKS IN THE IDLE POSITION WHEN THE GAS PEDAL IS RELEASED. IT TAKES A VERY FIRM PUSH TO RELEASE THE THROTTLE AND WHEN IT DOES RELEASE THE VEHICLE LURCHES FORWARD. COMPLAINTS TO THE DEALER RESULT IN A RECOMMENDATION TO HAVE THE FUEL SYSTEM FLUSHED ON AN ONGOING BASIS. SOME RELIEF IS ACHIEVED BY CLEANING THE THROTTLE BODY AREA AROUND THE BUTTERFLY PLATE. THIS HAS TO BE DONE ALMOST MONTHLY. THE DEALER ALSO STATES THAT HE DOES NOT KNOW OF A FACTORY FIXES TO THIS PROBLEM.*AK
DT: THE CONTACT STATES THERE IS NHTSA RECALLS CAMPAIGNS 04V129000 CONCERNING TAILGATE: HINGE AND ATTACHMENTS, AND 05V161000 CONCERNING PARKING BRAKE. THIS VEHICLE MANIFESTS THE SAME PROBLEMS AS INDICATED IN THE RECALLS. BUT IS NOT INCLUDED IN THE RECALLS DUE TO VIN. THE CONTACT REPAIRED THE VEHICLE AT HIS OWN EXPENSE.*AK UP…
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DT: THE CONTACT STATES THERE IS NHTSA RECALLS CAMPAIGNS 04V129000 CONCERNING TAILGATE: HINGE AND ATTACHMENTS, AND 05V161000 CONCERNING PARKING BRAKE. THIS VEHICLE MANIFESTS THE SAME PROBLEMS AS INDICATED IN THE RECALLS. BUT IS NOT INCLUDED IN THE RECALLS DUE TO VIN. THE CONTACT REPAIRED THE VEHICLE AT HIS OWN EXPENSE.*AK UPDATED 12/7/2005. *NM
WE HAVE SYMPTOMS OF THE GMC TRUCK RECALL INL 05V379000 . WE HAVE SAFETY CONCERNS BECAUSE OUR TRUCK FAILS TO STOP PROPERLY AND WE CONCERNED THIS WILL ULTIMATELY CAUSE AN ACCIDENT. WE TOOK OUR VEHICLE IN FOR DIAGNOSTICS AT BROOKFIELD PONTIAC-GMC TRUCK DEALER. DIAGNOSTICS HAS DETERMINED THAT WE INDEED HAVE THE FAILURES DEFINED IN …
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WE HAVE SYMPTOMS OF THE GMC TRUCK RECALL INL 05V379000 . WE HAVE SAFETY CONCERNS BECAUSE OUR TRUCK FAILS TO STOP PROPERLY AND WE CONCERNED THIS WILL ULTIMATELY CAUSE AN ACCIDENT. WE TOOK OUR VEHICLE IN FOR DIAGNOSTICS AT BROOKFIELD PONTIAC-GMC TRUCK DEALER. DIAGNOSTICS HAS DETERMINED THAT WE INDEED HAVE THE FAILURES DEFINED IN RECALL 05V379000 . WE ARE INFORMED WISCONSIN HAS BEEN LEFT OUT OF THIS RECALL. OUR NEIGHBORING STATES SUCH AS ILLINOIS AND MICHIGAN HOWEVER ARE INCLUDED. WE FEEL GMC HAS LEFT OUR SAFETY AT CHANCE AND FEEL THIS IS A LEGITIMATE COMPLAINT THAT GMC NEEDS TO INCLUDE ANY CONSUMER THAT HAS THIS SAFTEY ISSUE DEFINED IN 05V379000 . WE ARE FILING THIS COMPLAINT AS A RECORD FOR WHEN, AND IF THIS SAFETY ISSUE, CAUSES AN ACCIDENT AND BODILY HARM OR WORSE. AS WE CAN TESTIFY WISCONSIN RESIDENTS ARE SEEING THIS SAFETY ISSUE DEFINED IN THE RECALL 05V379000 AND OUR SAFETY SHOULD BE ADDRESSED BY THE GMC CORPORATION AS IT HAS BEEN BY OTHER STATES SURROUNDING US. *NM
1-I NOTICED BRAKE FAILURE AT SLOW STOPPING SPEEDS AND THE ABS WARNING LIGHT STAYED ON. 2- THIS CAUSED A FEW CLOSE CALLS AS FAR AS ALMOST HITTING STRUCTURES OR VEHICLES DIRECTLY IN FRONT OF ME. 3-TOOK TO THE DEALER AND WAS TOLD IT WAS THE WHEEL SPEED SENSOR LOCATED IN THE WHEEL HUB AND REPLACED AT A COST OF $500.00 PLUS . ALSO …
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1-I NOTICED BRAKE FAILURE AT SLOW STOPPING SPEEDS AND THE ABS WARNING LIGHT STAYED ON. 2- THIS CAUSED A FEW CLOSE CALLS AS FAR AS ALMOST HITTING STRUCTURES OR VEHICLES DIRECTLY IN FRONT OF ME. 3-TOOK TO THE DEALER AND WAS TOLD IT WAS THE WHEEL SPEED SENSOR LOCATED IN THE WHEEL HUB AND REPLACED AT A COST OF $500.00 PLUS . ALSO FOUND OUT THAT THIS IS A RECALL FOR EAST COAST ONLY RECALL # NHTSA ID # 05V379000. BECAUSE THIS IS A DEFECTIVE PART ON EAST COAST I FEEL IT SHOULD APPLY TO MY VEHICLE AS WELL EVEN THOUGH I'M ON THE WEST COAST. *NM
GAS GAUGE ON 2000 GMC K1500 PICK UP TRUCK WORKING ERRATIC. SOMETIMES GAUGE GOES TO EMPTY AND THEN A CHECK ENGINE LIGHT GOES ON. I UNDERSTAND THAT A LOT OF PEOPLE WITH THESE TRUCKS ARE HAVING THE SAME PROBLEM. GMC NEEDS TO HAVE A RECALL THANKS. *JB
Official recalls
100V222000 · Service Brakes, Hydraulic:power Assist:vacuum
Aug 8, 2000
VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS AND SPORT UTILITY VEHICLES EQUIPPED WITH VACUUM POWER, 4-WHEEL DISC BRAKES. THESE VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 105, "HYDRAULIC BRAKE SYSTEMS." THESE VEHICLES WERE BUILT WITH A KINKED BRAKE BOOSTER VACUUM SUPPLY HOSE.
Consequence & remedy
Consequence: THESE VEHICLES DO NOT COMPLY WITH REQUIREMENTS OF FMVSS NO. 105.
Remedy: DEALERS WILL RE-ROUTE THE BRAKE BOOSTER VACUUM SUPPLY HOSE.
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
2EA04011 · 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.