IllustrationTL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING 55 MPH, THE ABS WARNING LIGHT REMAINED ILLUMINATED. THE DEALER REPLACED THE ABS AT THE COST OF $1,046.36. THE FAILURE MILEAGE WAS 64,000 AND CURRENT MILEAGE WAS 64,500. UPDATED 04-02-08 *BF
2002 Chevrolet Silverado 1500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2002 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
340–25K
4925–50K
7950–75K
10275–100K
124100–150K
55150K+
443 reports with mileage · 66 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. Review the 184 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes, Hydraulic. Review the 164 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 30 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
45 crash reports5 fire reports15 injury reports
Service Brakes, Hydraulic complaints
164 reportsI HAVE A 2002 CHEVROLET SILVERADO TRUCK. THE TRUCK ONLY HAS 28,000 MILES ON IT AND RECENTLY BEGAN MAKING GRINDING NOISES. I TOOK IT TO CENTURY CHEVROLET AND WAS TOLD THAT ALL 4 ROTORS AND PADS NEED TO BE REPLACED. WITH ONLY 38,000 MILES ON THE TRUCK THAT SEEMED CRAZY. WHEN I QUESTIONED THIS THEY TOLD ME THAT THEY HARDLY EVER SEE…
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I HAVE A 2002 CHEVROLET SILVERADO TRUCK. THE TRUCK ONLY HAS 28,000 MILES ON IT AND RECENTLY BEGAN MAKING GRINDING NOISES. I TOOK IT TO CENTURY CHEVROLET AND WAS TOLD THAT ALL 4 ROTORS AND PADS NEED TO BE REPLACED. WITH ONLY 38,000 MILES ON THE TRUCK THAT SEEMED CRAZY. WHEN I QUESTIONED THIS THEY TOLD ME THAT THEY HARDLY EVER SEE THIS BRAKE PROBLEM HAPPENING AND IT'S BECAUSE I DON'T DRIVE THE TRUCK ENOUGH SO IT'S RUSTED OUT THE PARTS. RUSTY PARTS IN COLORADO IS ANOTHER THING THAT DIDN'T MAKE SENSE. THEY COULD ONLY DO THE FRONT BRAKE REPAIR BECAUSE OF MY CAMPER SO THEY REPLACED THE FRONT ROTORS AND PADS FOR A LITTLE OVER $400. I STARTED CHECKING AROUND ABOUT THE BRAKES AND DISCOVERED ON THE INTERNET THAT THERE WERE MANY SIMILAR STORIES FROM OTHER SILVERADO OWNERS. THERE IS A LARGE NUMBER OF PEOPLE WHO OWN THESE VEHICLES WITH PARTS THAT JUST DETERIORATE. CHEVROLET CONTINUES TO DENY THAT IT'S DEFECTIVE PARTS AND INSTEAD TELLS PEOPLE THAT IT'S THEIR FAULT FOR NOT USING THE BRAKES ENOUGH. WE USE THIS TRUCK MOSTLY IN THE SUMMER FOR CAMPING AND TRAVELING BUT DO DRIVE IT IN THE WINTER SO I?M UNSURE WHAT IS CONSIDERED THE PROPER AMOUNT OF ?BRAKING? TIME. THE DEALER COULDN?T GIVE ME AN ANSWER ON THAT QUESTION. THIS IS HAPPENING TO A LOT OF OTHER PEOPLE AND THEY SHOULD BE WARNED THAT PART OF THE MAINTENANCE ON THIS VEHICLE IS $1,000 BRAKE JOB EVERY $25,000 MILES OR YOU WON'T HAVE ANY BRAKES. THANK YOU FOR YOUR TIME. *TR
2002 CHEVROLET SILVERADO WITH RECALL ON THE BRAKE SYSTEM. CONSUMER STATES THAT HE HAD NEW PADS, ROTORS, AND CALIPERS REPLACED WITH BRAND NEW PARTS. HE STATED THAT HIS PROBLEM RECURRED WHEN THE BRAKES FAILED TO WORK. *KB THE CONSUMER STATED IN DEC 2005 THE ABS WAS INSPECTED AND NO PROBLEM WAS FOUND. HOWEVER, 2 YEARS LATER THE C…
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2002 CHEVROLET SILVERADO WITH RECALL ON THE BRAKE SYSTEM. CONSUMER STATES THAT HE HAD NEW PADS, ROTORS, AND CALIPERS REPLACED WITH BRAND NEW PARTS. HE STATED THAT HIS PROBLEM RECURRED WHEN THE BRAKES FAILED TO WORK. *KB THE CONSUMER STATED IN DEC 2005 THE ABS WAS INSPECTED AND NO PROBLEM WAS FOUND. HOWEVER, 2 YEARS LATER THE CONSUMER BEGAN TO EXPERIENCE BRAKE PROBLEMS. THE DEALER REPLACED THE FRONT WHEEL SPEED SENSOR AT THE CONSUMERS EXPENSE. *JB
ABS SYSTEM FAILURE...BRAKES FAIL TO WORK AT SLOW SPEEDS. PREVIOUS RECALL WORK ON THIS SYSTEM PERFORMED BY DEALER, STILL NOT FIXED. *TR
TL*THE CONTACT OWNS A 2002 CHEVROLET C1500. WHILE DRIVING 5 MPH AND APPROXIMATELY 3 FEET AWAY FROM ANOTHER VEHICLE, THE BRAKES WERE APPLIED, BUT THE VEHICLE CONTINUED TO MOVE FORWARD. THE CONTACT STATED THAT THE BRAKES MADE A VERY LOUD NOISE BEFORE THE VEHICLE STOPPED. THE VEHICLE HAS NOT BEEN INSPECTED BY A REPAIR SHOP. THE…
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TL*THE CONTACT OWNS A 2002 CHEVROLET C1500. WHILE DRIVING 5 MPH AND APPROXIMATELY 3 FEET AWAY FROM ANOTHER VEHICLE, THE BRAKES WERE APPLIED, BUT THE VEHICLE CONTINUED TO MOVE FORWARD. THE CONTACT STATED THAT THE BRAKES MADE A VERY LOUD NOISE BEFORE THE VEHICLE STOPPED. THE VEHICLE HAS NOT BEEN INSPECTED BY A REPAIR SHOP. THE BRAKES AND BOTH SENSORS WERE REPLACED APPROXIMATELY TWO YEARS AGO. THE ENGINE SIZE WAS UNKNOWN AND THE VIN WAS INVALID. THE CURRENT AND FAILURE MILEAGES WERE 35,600. UPDATED 11/6/07 *TR
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE APPLYING THE BRAKES BETWEEN 5 AND 10 MPH, THE ABS PULSATES AND THE VEHICLE WILL NOT STOP. THE FAILURE CAUSED THE VEHICLE TO CRASH INTO A FENCE. THE BUMPER WAS DENTED. THE CONTACT STATED THAT THE BRAKES PULSATE 8 OUT OF 10 TIMES AND INCREASE THE VEHICLE'S STOPPING DIS…
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TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE APPLYING THE BRAKES BETWEEN 5 AND 10 MPH, THE ABS PULSATES AND THE VEHICLE WILL NOT STOP. THE FAILURE CAUSED THE VEHICLE TO CRASH INTO A FENCE. THE BUMPER WAS DENTED. THE CONTACT STATED THAT THE BRAKES PULSATE 8 OUT OF 10 TIMES AND INCREASE THE VEHICLE'S STOPPING DISTANCE. HE HAS HAD ONE ABS SENSOR UNPLUGGED IN ORDER TO DEACTIVATE THE ABS. NHTSA CAMPAIGN ID NUMBER 05V379000 (SERVICE BRAKES:HYDRAULIC:ANTILOCK) WAS REFERENCED. THE CURRENT AND FAILURE MILEAGES WERE 73,500. UPDATED 01/11/08. *LJ UPDATED *JB
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING 10 MPH, THE VEHICLE BECAME DIFFICULT TO STOP WHEN THE ABS ATTEMPTED TO ENGAGE. THE DEALER STATED THAT THE FAILURE WAS CAUSED BY THE SPEED SENSOR AND THE ABS HUB. THE CURRENT AND FAILURE MILEAGES WERE 59,000.
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING 30 MPH THE VEHICLE LOST THE ABILITY TO STOP WHEN HE ATTEMPTED TO MAKE A TURN. THE ROAD CONDITIONS WERE NORMAL. THE VEHICLE WAS TOWED TO THE DEALER AND THEY STATED THAT THE BRAKE LINES RUSTED WHICH CAUSED BRAKE FLUID TO LEAK. THE DEALER REPLACED TWO BRAKE LINES…
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TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING 30 MPH THE VEHICLE LOST THE ABILITY TO STOP WHEN HE ATTEMPTED TO MAKE A TURN. THE ROAD CONDITIONS WERE NORMAL. THE VEHICLE WAS TOWED TO THE DEALER AND THEY STATED THAT THE BRAKE LINES RUSTED WHICH CAUSED BRAKE FLUID TO LEAK. THE DEALER REPLACED TWO BRAKE LINES AND THE CONTACT WAS ADVISED TO REPAIR THE OTHER BRAKE LINES THAT STARTED TO RUST. THE CURRENT AND FAILURE MILEAGES WERE 90,000.
CHEVROLET SILVERADO ABS FAILURE , LOSS OF BRAKES WHEN TRAVELING OVER SMALL BUMPS OR WET ROADS. ALSO LOSS OF PARKING BRAKE. DEALER SAID IT WAS ONLY ON MANUAL TRANSMISSION TRUCKS THAT HAD THE FAILURE...THIS IS NOT TRUE. ALL TRUCKS.*AK
TL* - THE CONTACT STATED THAT ON 08/25/06 HE TOOK HIS 2002 CHEVROLET SILVERADO FOR RECALL CAMPAIGN# 05V379000 SERVICE REPAIR, ON THE ABS. AFTER PICKING UP HIS VEHICLE HE CONTINUED TO HAVE THE SAME FAILURE. THE CONTACT STATED THAT IT TAKES LONGER FOR HIM TO COME TO A COMPLETE STOP THAN EXPECTED. THE CONTACT STATED THAT HE HAS …
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TL* - THE CONTACT STATED THAT ON 08/25/06 HE TOOK HIS 2002 CHEVROLET SILVERADO FOR RECALL CAMPAIGN# 05V379000 SERVICE REPAIR, ON THE ABS. AFTER PICKING UP HIS VEHICLE HE CONTINUED TO HAVE THE SAME FAILURE. THE CONTACT STATED THAT IT TAKES LONGER FOR HIM TO COME TO A COMPLETE STOP THAN EXPECTED. THE CONTACT STATED THAT HE HAS INFORMED THE DEALERSHIP ABOUT THIS PROBLEM AND HAS GOTTEN NO RESOLUTION. THE CONTACT STATED THAT THIS HAPPENS ALMOST EVERY DAY HE DRIVES THE VEHICLE REGARDLESS OF THE WEATHER OR ROAD CONDITIONS.
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.