IllustrationRUPTURE OF HYDRAULIC BRAKE LINES INCLUDING ANTI LOCK PORTION, TOTAL LOSS OF BRAKING. *TR
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 reportsTL*THE CONTACT OWNS A 2002 CHEVROLET 1500. WHILE DRIVING AT APPROXIMATELY 5 MPH, THE CONTACT NOTICED THAT THE VEHICLE CONTINUED MOVING WHEN HE DEPRESSED THE BRAKE PEDAL. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALERSHIP BUT THE DEALER COULD NOT DUPLICATE THE PROBLEM. A LOCAL MECHANIC REPLACED THE BRAKE PADS AND ROTORS BUT THE CO…
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TL*THE CONTACT OWNS A 2002 CHEVROLET 1500. WHILE DRIVING AT APPROXIMATELY 5 MPH, THE CONTACT NOTICED THAT THE VEHICLE CONTINUED MOVING WHEN HE DEPRESSED THE BRAKE PEDAL. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALERSHIP BUT THE DEALER COULD NOT DUPLICATE THE PROBLEM. A LOCAL MECHANIC REPLACED THE BRAKE PADS AND ROTORS BUT THE CONTACT WAS STILL EXPERIENCING THE SAME FAILURE. THE CONTACT HAD NOT CALLED THE MANUFACTURER AT THE TIME OF THE COMPLAINT. THE FAILURE MILEAGE WAS APPROXIMATELY 20,000. THE CURRENT MILEAGE WAS APPROXIMATELY 84,000. UPDATED 3/31/15*CN UPDATED 04/07/15*JB
BRAKE FAILURE, HYDRAULIC STEEL BRAKE LINES RUSTED AND BURST WHEN BRAKES WERE APPLIED RESULTING IN TOTAL LOSS OF BRAKES. ALL STEEL BRAKE LINES HAD TO BE REPLACED BECAUSE THEY WERE ALL SEVERELY RUSTED COSTING $1400.00. *TR
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT WAS DRIVING APPROXIMATELY 5 MPH WHEN THE BRAKES FAILED TO ENGAGE. THE BRAKE PEDAL WAS ENGAGED REPEATEDLY BEFORE IN ORDER TO STOP THE VEHICLE. THE FAILURE OCCURRED WHENEVER TRAVELING BETWEEN 5 TO 10 MPH. THE VEHICLE HAD NOT BEEN REPAIRED AT THE TIME OF THE COMPLAINT…
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TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT WAS DRIVING APPROXIMATELY 5 MPH WHEN THE BRAKES FAILED TO ENGAGE. THE BRAKE PEDAL WAS ENGAGED REPEATEDLY BEFORE IN ORDER TO STOP THE VEHICLE. THE FAILURE OCCURRED WHENEVER TRAVELING BETWEEN 5 TO 10 MPH. THE VEHICLE HAD NOT BEEN REPAIRED AT THE TIME OF THE COMPLAINT. THE FAILURE MILEAGE WAS 21,500. THE CURRENT MILEAGE WAS 23,200. UPDATED 06/03/10*BF UPDATED 06/07/10*JB
WHILE ATTEMPTING TO STOP FOR A RED LIGHT, THE BRAKE PEDAL WENT TO THE FLOOR AND I WENT THROUGH THE LIGHT. AFTER GETTING THE TRUCK STOPPED WITH THE EMERGENCY BRAKE, I FOUND BRAKE FLUID LEAKING FROM UNDER THE TRUCK FROM CORRODED BRAKE LINES. I MADE TEMPORARY REPAIRS TO THE LEAKING LINES AND RETURNED TO MY HOME. I CHECKED ONLINE AB…
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WHILE ATTEMPTING TO STOP FOR A RED LIGHT, THE BRAKE PEDAL WENT TO THE FLOOR AND I WENT THROUGH THE LIGHT. AFTER GETTING THE TRUCK STOPPED WITH THE EMERGENCY BRAKE, I FOUND BRAKE FLUID LEAKING FROM UNDER THE TRUCK FROM CORRODED BRAKE LINES. I MADE TEMPORARY REPAIRS TO THE LEAKING LINES AND RETURNED TO MY HOME. I CHECKED ONLINE ABOUT THIS PROBLEM AND FOUND IT SEEMS TO BE A COMMON PROBLEM. I ALSO FOUND FROM FORUMS GM KNOWS OF THIS PROBLEM AND SIMPLY SAYS TO LIVE WITH IT. SO FAR I HAVEN'T DONE ANYTHING TO FIX THE PROBLEM AS GM DOESN'T OFFER ANY REPLACEMENT PARTS. *TR
RUSTED BRAKE LINES POSSIBLE BRAKE FAILURE. *TR
THIS IS A FOLLOW UP COMPLAINT TO ONE I CALLED IN TO THE NHTSA TO REPORT THIS PROBLEM. I TOO HAD A BRAKE LINE RUPTURE ON MY 2002 CHEVY PICKUP AND MY BRAKES FAIL AS A RESULT OF CORRODED BRAKE LINES. THIS TRUCK HAD ALREADY BEEN RECALLED DUE TO THE WHEEL SPEED SENSOR FAILING AT LOW SPEED WHICH THEY GM) ALSO ATTRIBUTED TO CORROSION. …
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THIS IS A FOLLOW UP COMPLAINT TO ONE I CALLED IN TO THE NHTSA TO REPORT THIS PROBLEM. I TOO HAD A BRAKE LINE RUPTURE ON MY 2002 CHEVY PICKUP AND MY BRAKES FAIL AS A RESULT OF CORRODED BRAKE LINES. THIS TRUCK HAD ALREADY BEEN RECALLED DUE TO THE WHEEL SPEED SENSOR FAILING AT LOW SPEED WHICH THEY GM) ALSO ATTRIBUTED TO CORROSION. AND JUST LAST MONTH THEY FAILED BECAUSE OF THE LINE CORRODING AND RUPTURING. I ATTEMPTED TO COME TO A STOP AT AN INTERSECTION WHEN I APPLIED THE BRAKES AND THE BRAKE PEDAL WENT ALL THE WAY TO THE FLOORBOARD. I EVENTUALLY STOPPED JUST SHORT OF THE INTERSECTION AND WAS ABLE TO DRIVE THE TRUCK TO A SERVICE STATION. I GOT OUT OF THE TRUCK AND SAW THE BRAKE FLUID LEAKING OUT OF THE RUPTURED BRAKE LINE BENEATH THE DRIVER'S SIDE DOOR. I TOOK THE TRUCK IN AND WAS INFORMED THE BRAKE LINES WERE ROTTED OUT AND WOULD HAVE TO BE REPLACED. $1800 DOLLARS LATER I GOT MY TRUCK BACK. LET'S SEE HOW LONG THEY LAST THIS TIME.. *TR
2002 CHEVROLET SILVERADO WITH BRAKE PROBLEMS. *DT THE CONSUMER STATED THE BRAKES AND ROTORS HAD TO BE REPLACED TWICE. ALSO, THE ABS NEEDED TO BE REPLACED, BUT THE PART ALONE IS $1,000 AND THE LABOR IS $600.00. THE ABS ACTIVATED AT LOW SPEEDS. *JB
AFTER DRIVING 400 MILES TO LAUREL SPRINGS ,NC FROM BALTIMORE ,MD THROUGH MOUNTAIN ROADS AND ARRIVING AT OUR DESTINATION MY WIFE PARKED OUR TRUCK , WE GOT OUT TO GO IN AND OPEN UP THE HOUSE. I THEN WENT BACK TO THE TRUCK AND GOT IN TO MOVE IT CLOSER TO THE HOUSE TO UNPACK OUR BELONGINGS FOR A WEEKS VACATION. I STARTED THE VEHIC…
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AFTER DRIVING 400 MILES TO LAUREL SPRINGS ,NC FROM BALTIMORE ,MD THROUGH MOUNTAIN ROADS AND ARRIVING AT OUR DESTINATION MY WIFE PARKED OUR TRUCK , WE GOT OUT TO GO IN AND OPEN UP THE HOUSE. I THEN WENT BACK TO THE TRUCK AND GOT IN TO MOVE IT CLOSER TO THE HOUSE TO UNPACK OUR BELONGINGS FOR A WEEKS VACATION. I STARTED THE VEHICLE AND PLACED IT IN DRIVE ONLY TO HAVE THE BRAKES GO ALL THE WAY TO THE FLOOR . I THEN TOOK A FLASHLIGHT AND HAD MY SON PUMP THE BRAKE PEDAL AND BRAKE FLUID WAS GUSHING FROM THE BRAKELINE. I TOOK A FILE AND SCRAPED WHAT LOOKS LIKE LITTLE BALLS OF RUST AND BEHIND THE TEN OR SO BALLS FOUND A HOLE THE SIZE OF BALL POINT PEN TIP.I THEN SPENT TWO DAYS REPLACING THE BRAKE LINE FORM PARTS AT THE NOT SO CLOSE AUTO ZONE. I FIND IT HARD TO BELIEVE THAT 8 YEAR OLD BRAKE LINES WOULD RUST THAT BADLY , I'VE HAD 20 YEAR OLD VEHICLE S THAT DIDN'T HAVE BRAKE LINES RUST OUT. I'M JUST LUCKY THAT THE LINE BROKE AFTER GETTING TO MY DESTINATION AND NOT ON THE MOUNTAIN ROADS WE WERE TRAVELING. I HAVE THE OLD BRAKE LINE BUT LEFT IT AT THE HOUSE IN NC. *TR
AS MY WIFE PULLED INTO HER PARKING SPACE AT WORK, THE BRAKE PEDAL WENT TO THE FLOOR. SHE WAS ABLE TO STOP, GOT OUT AND BRAKE FLUID WAS LEAKING FROM UNDER THE TRUCK AROUND THE DRIVER DOOR AREA. SINCE SHE WORKS AT A GMC TRUCK DEALERSHIP SHE HAD ONE OF THE TECHS LOOK AT IT AND FOUND A HOLE IN ONE BRAKE LINE AND OTHERS CORRODED. …
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AS MY WIFE PULLED INTO HER PARKING SPACE AT WORK, THE BRAKE PEDAL WENT TO THE FLOOR. SHE WAS ABLE TO STOP, GOT OUT AND BRAKE FLUID WAS LEAKING FROM UNDER THE TRUCK AROUND THE DRIVER DOOR AREA. SINCE SHE WORKS AT A GMC TRUCK DEALERSHIP SHE HAD ONE OF THE TECHS LOOK AT IT AND FOUND A HOLE IN ONE BRAKE LINE AND OTHERS CORRODED. THEY REPLACED 4 BRAKE LINES AND ONE REAR BRAKE LINE DUE TO CORROSION. THE TRUCK IS A 2002 CHEVROLET SILVERADO. *TR
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.