IllustrationDISCOVERED A LOW PEDAL CONDITION WHILE DRIVING ON 695 , INSPECTED AND FOUND RUSTED OUT BRAKE LINES AND FITTINGS HAVE CAUSED BRAKING MALFUNCTIONS IN MY 2000 SILVERADO THE VEHICLE HAS 50,000 MILES ON IT . THIS IS THE SECOND OCCURRENCE! THE DEALER REPAIRED FIRST PROBLEM @400.00 SECOND PROBLEM IS STILL PENDING. *TR
2000 Chevrolet Silverado 1500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2000 Chevrolet Silverado 1500 do not stand out strongly from the model-year median of 525.
About this comparison →How this year compares
Owner complaints by model year
Compare all Silverado 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
210–25K
3725–50K
8050–75K
10275–100K
152100–150K
97150K+
489 reports with mileage · 125 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 237 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 162 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 33 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
69 crash reports5 fire reports25 injury reports
Service Brakes, Hydraulic complaints
237 reportsTL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. WHILE DRIVING BETWEEN 25 AND 30 MPH, THE CONTACT STATED THAT BRAKE LINE FAILED WHEN HE ATTEMPTED TO ENGAGE THE BRAKE PEDAL TO AVOID HITTING A VEHICLE IN FRONT OF HIM. THE CONTACT WAS FORCED TO USE THE EMERGENCY BRAKE TO STOP THE VEHICLE AND COASTED ONTO THE EMERGENCY LANE. THE…
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TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. WHILE DRIVING BETWEEN 25 AND 30 MPH, THE CONTACT STATED THAT BRAKE LINE FAILED WHEN HE ATTEMPTED TO ENGAGE THE BRAKE PEDAL TO AVOID HITTING A VEHICLE IN FRONT OF HIM. THE CONTACT WAS FORCED TO USE THE EMERGENCY BRAKE TO STOP THE VEHICLE AND COASTED ONTO THE EMERGENCY LANE. THE CONTACT NOTICED THAT THE BRAKE FLUID WAS LEAKING. THE VEHICLE WAS TOWED TO A LOCAL REPAIR SHOP WHERE THE MECHANIC REPAIRED 48 FEET OF THE BRAKE TUBING. THE FAILURE MILEAGE WAS APPROXIMATELY 90,000. THE CURRENT MILEAGE WAS APPROXIMATELY 105,000.
THE BRAKE LINES ON MY 2000 CHEVY SILVERADO RUSTED OUT AND HAD TO BE REPLACED. THE GAS LINE WAS ALSO RUSTED OUT. *TR
ONE OWNER 2000 SILVERADO 1500 LT, WHILE PULLING LIGHT MOTORCYCLE TRAILER GOING DOWNHILL - BRAKE PEDAL WENT TO FLOOR. NO BRAKES WHATSOEVER. DRIVER WAS LUCKY ENOUGH TO HAVE ROOM TO GRADUALLY STOP. BRAKE LINES RUSTED THROUGH - FLUID STREAMING OUT. GM AND DEALER FINALLY REPLACED "DEFECTIVE LINES" (VEHICLE HAD LESS THAN 50K MILES…
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ONE OWNER 2000 SILVERADO 1500 LT, WHILE PULLING LIGHT MOTORCYCLE TRAILER GOING DOWNHILL - BRAKE PEDAL WENT TO FLOOR. NO BRAKES WHATSOEVER. DRIVER WAS LUCKY ENOUGH TO HAVE ROOM TO GRADUALLY STOP. BRAKE LINES RUSTED THROUGH - FLUID STREAMING OUT. GM AND DEALER FINALLY REPLACED "DEFECTIVE LINES" (VEHICLE HAD LESS THAN 50K MILES). 1 YEAR LATER, REMAINING LINES RUSTED OUT AND FAILED. OWNER REPLACED AT OWN COST AND FINALLY SOLD TRUCK. GM FAILED TO RECOGNIZE SYMPTOMS OF ISSUE ALL ALONG AND PROVIDED LESS THAN ACCEPTABLE SUPPORT. *TR
I HAVE A 2000 CHEVY SILVERADO 1500 LT, WHICH I PURCHASED FROM MY SON ON OCT 17, 2009. PRIOR TO THAT MY SON EXPERIENCED THE RIGHT FRONT BAKE LINE BURST IN JUNE OF 2009, WHICH HE HAD REPLACED. I HAD THE BRAKE LINES CHECKED AT THE CHEVY DEALER WHO ADVISED ME TO REPLACE ALL THE LINES. CHEVY DOES NOT OFFER PRE-MADE BRAKE LINES, M…
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I HAVE A 2000 CHEVY SILVERADO 1500 LT, WHICH I PURCHASED FROM MY SON ON OCT 17, 2009. PRIOR TO THAT MY SON EXPERIENCED THE RIGHT FRONT BAKE LINE BURST IN JUNE OF 2009, WHICH HE HAD REPLACED. I HAD THE BRAKE LINES CHECKED AT THE CHEVY DEALER WHO ADVISED ME TO REPLACE ALL THE LINES. CHEVY DOES NOT OFFER PRE-MADE BRAKE LINES, MEANING THEY HAVE TO BE MADE UP INDIVIDUALLY, AT A HUGE EXPENSE. ACCORDING TO OFFICE OF DEFECTS INVESTIGATION THERE ARE 110 OWNER COMPLAINTS SUCH AS MINE. THE COMPLAINTS ALLEGE THE LOSS OF BRAKING EFFECTIVENESS DUE TO BRAKE LINE RUPTURE BECAUSE OF CORROSION. IN 37 OF THESE COMPLAINTS THE BRAKE LINE FAILURE WAS CONFIRMED BY A DEALER INSPECTION. THREE COMPLAINTS ALLEGE THAT CORRODED BRAKE LINE FAILURE RESULTED IN A CRASH. MY WIFE AND I ARE RETIRED AND TRYING TO ENJOY OUR LASTING YEARS AND HOPEFULLY GM WILL RESOLVE THIS ISSUE. OUR LIVES ARE WORTH MORE THAN BRAKE LINES. *TR
AT A CHEVY DEALER FOR AN OIL CHANGE AND CHECK. WAS TOLD TRUCK WAS READY. IN ROUTE, THEY CALLED AND TOLD ME THERE WAS A LEAK IN BRAKE LINE AND THAT BRAKE LINES WERE RUSTED AND BRITTLE. I WAS TRAVELING AND HAD NO CHOICE BUT TO REPAIR BRAKE LINES. THEY REPLACED BRAKE LINES AND CONNECTORS FROM THE ABS UNIT BACK TO REAR WHEELS @ INCR…
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AT A CHEVY DEALER FOR AN OIL CHANGE AND CHECK. WAS TOLD TRUCK WAS READY. IN ROUTE, THEY CALLED AND TOLD ME THERE WAS A LEAK IN BRAKE LINE AND THAT BRAKE LINES WERE RUSTED AND BRITTLE. I WAS TRAVELING AND HAD NO CHOICE BUT TO REPAIR BRAKE LINES. THEY REPLACED BRAKE LINES AND CONNECTORS FROM THE ABS UNIT BACK TO REAR WHEELS @ INCREDIBLE COST. WHEN I GOT HOME, I WENT TO TRUSTED DEALER AND WAS TOLD THAT THE REST OF THE BRAKE LINES WERE ALSO RUSTED AND THAT I WOULD HAVE TO REPLACE THEM TOO IN THE NEAR FUTURE. THE BRAKE LINE PUNCTURE HAPPENED WHEN IT WAS AT THE DEALER. THERE WAS NO LEAK BEFORE IT WENT IN FOR SERVICE. THEY REFUSED TO TELL ME HOW THE LEAK OCCURRED EXCEPT TO SAY THAT THE LINES WERE RUSTY. I JUST READ IN PAPER ABOUT A NHTSA INVESTIGATION INTO BRAKE FAILURE ON OLDER MODEL CHEVY TRUCKS. I LIVE IN NEW YORK. THE TRUCK IS WELL TAKEN CARE OF, REGULARLY SERVICED, AND HAD JUST ABOVE 80,00 MILES. THE DEALER TOLD ME I WAS LUCKY THE BRAKE LINES DID NOT RUPTURE WHEN I WAS DRIVING. THEY TOLD ME THE BRAKE LINE RUPTURE WAS BECAUSE OF CORROSION, AND THE DEALER BACK HOME TOLD ME THAT ALL THE OTHER BRAKE LINES NEEDED TO BE REPLACED BECAUSE OF CORROSION. I'VE ALREADY BEEN TAKEN TO THE CLEANERS. TO REPLACE ALL THE BRAKE LINES WILL PUT MY EXPENDITURES FAR OVER WHAT THE TRUCK IS WORTH. TO ADD INSULT TO INJURY, MY REAR DIFFERENTIAL HAD TO BE REPLACED ON MY TRIP. I WAS GIVEN NO REASON FOR WHY IT WENT (ANOTHER $2600). THE LAST THING THAT HAPPENED WAS A RUST-RELATED LEAK-OUT OF THE POWER STEERING FLUID. NEVER ANOTHER CHEVY. HORRIBLE TRUCK, HORRIBLE COMPANY. INCIDENTALLY, LONG-BED CHEVY TRUCKS APPARENTLY ALWAYS HAVE VIBRATION THAT THEY NEVER FIX, EVEN IF COMPLAINED ABOUT, APPARENTLY BECAUSE THEY CAN'T. AN OVERALL DEFECTIVE TRUCK, PERHAPS MORE APPROPRIATELY A DEFECTIVE MANUFACTURER. BELIEVE ME, IT DOES NO GOOD TO TRY TO WORK WITH THE COMPANY TO DEAL WITH ANY KIND OF PROBLEM, INCLUDING WARRANTY PROBLEMS. THEY WERE ALWAYS SO UNRESPONSIVE, YOU JUST GIVE UP. *TR
I HAVE A 2000 CHEVY SILVERADO 1500 EXTENDED CAB. I NOTICED A BRAKE LEAK UNDER THE DRIVER SIDE DOOR. ON FURTHER INVESTIGATION I FOUND THAT ALL OF THE BRAKE LIKES TO AND FROM THE ABS MODULE WERE BADLY CORRODED WITH AT LEAST 1 LEAKING. UPON FURTHER INVESTIGATION THERE IS A GREAT DEAL OF CORROSION IN OTHER PARTS IN THE SAME AREA.…
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I HAVE A 2000 CHEVY SILVERADO 1500 EXTENDED CAB. I NOTICED A BRAKE LEAK UNDER THE DRIVER SIDE DOOR. ON FURTHER INVESTIGATION I FOUND THAT ALL OF THE BRAKE LIKES TO AND FROM THE ABS MODULE WERE BADLY CORRODED WITH AT LEAST 1 LEAKING. UPON FURTHER INVESTIGATION THERE IS A GREAT DEAL OF CORROSION IN OTHER PARTS IN THE SAME AREA. THIS TRUCK HAS 145,000 MILES. THIS IS ALL HIGHWAY MILES. FOUND THAT NHTSA HAS OPENED AN INVESTIGATION WITH GM ON CORROSION IN BRAKE LINES IN 1999 THRU 2003 TRUCKS. WANT TO REGISTER WITH NHTSA ON THIS SAME ISSUE. WAS GOING TO PAY TO GET IT FIXED BECAUSE ITS TOO DANGEROUS TO KEEP DRIVING IT, NOW GOING TO SIT ON THE TRUCK TO AWAIT OUTCOME OF NHTSA INVESTIGATION. *TR
TL*THE CONTACT OWNS 2000 CHEVROLET 1500. THE CONTACT WAS DRIVING APPROXIMATELY 25 MPH AND ABRUPTLY ENGAGED THE BRAKES AS A RESULT OF THE BRAKE LINES RUPTURED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC. THE FAILURE WAS CONTRIBUTED TO RUST AND DETERIORATION. THE FAILURE MILEAGE WAS 132,678. THE CURRENT MILEAGE WAS 134,000.
BRAKE FAILURE DUE TO CORRODED BRAKE LINES. ONE LINE HAS FAILED AND OTHERS ARE BADLY CORRODED. THE FAULTY LINE HAD TO BE REPLACED. *TR
THIS BRAKE PROBLEM STARTED ABOUT 2007 MY ANTILOCK BRAKES WILL NOT LET MY TRUCK STOP AT LOW SPEEDS. IT HAS CAUSED ME TO HIT GAS PUMP BARICADES DAMAGEING MY TRUCK. IT HAS CAUSED MANY NEAR MISSES AT INTERSECTIONS. I AM AFRAID TO PUT MY FAMILY IN THIS TRUCK.
Official recalls
0No 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
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.