Illustration2002 CHEVY SILVERADO 1500 LT I HAVE A POPPING OR CLUNKING NOISE THAT I CAN HEAR AND FEEL ON THE STEERING WHEEL. I AM CONCERNED THAT IT MIGHT BE A SAFETY ISSUE AND EXPENSIVE TO REPAIR AT THAT.THIS HAS BEEN ON GOING FOR SOMETIME. THIS NOISE IS VERY NOTICEABLE WHEN BACKING UP OR MOVING FORWARD AT VERY SLOW SPEED. *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
What owners actually said
509 reportsTL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE THE CONTACT WAS DRIVING APPROXIMATELY 5 MPH ON DRY ROAD SURFACES, THE ANTI-LOCK SYSTEM ACTIVATED AND THE VEHICLE WOULD NOT SLOW DOWN WHEN THE BRAKES WERE ENGAGED. SUDDENLY, THE GEAR WAS SHIFTED INTO REVERSE CAUSING THE VEHICLE TO CRASH INTO A CEMENT BARRIER. THE CONTACT…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE THE CONTACT WAS DRIVING APPROXIMATELY 5 MPH ON DRY ROAD SURFACES, THE ANTI-LOCK SYSTEM ACTIVATED AND THE VEHICLE WOULD NOT SLOW DOWN WHEN THE BRAKES WERE ENGAGED. SUDDENLY, THE GEAR WAS SHIFTED INTO REVERSE CAUSING THE VEHICLE TO CRASH INTO A CEMENT BARRIER. THE CONTACT RESUMED DRIVING WITHOUT EXPERIENCING THE ABS FAILURE. THERE WAS NO PERSONAL INJURY. A POLICE REPORT WAS NOT FILED. THE FRONT BUMPER SUSTAINED MINOR DAMAGE. THE VEHICLE HAD NOT BEEN DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 120,000.
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT NOTICED THAT WHEN TRAVELING AT VERY LOW SPEEDS, THE ABS WOULD ACTIVATE, RESULTING IN LITTLE OR NO TRACTION, SIMILAR TO NHTSA CAMPAIGN ID NUMBER: 05V379000 (SERVICE BRAKES, HYDRAULIC: ANTILOCK). THE MANUFACTURER INFORMED THE CONTACT THAT HIS VEHICLE WAS NOT INCLUDE…
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TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT NOTICED THAT WHEN TRAVELING AT VERY LOW SPEEDS, THE ABS WOULD ACTIVATE, RESULTING IN LITTLE OR NO TRACTION, SIMILAR TO NHTSA CAMPAIGN ID NUMBER: 05V379000 (SERVICE BRAKES, HYDRAULIC: ANTILOCK). THE MANUFACTURER INFORMED THE CONTACT THAT HIS VEHICLE WAS NOT INCLUDED IN THE PREVIOUS RECALL AND OFFERED NO FURTHER ASSISTANCE. AN INDEPENDENT MECHANIC PERFORMED A DIAGNOSTIC TEST; HOWEVER, HE WAS UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE CURRENT MILEAGE WAS 49,000 AND THE FAILURE MILEAGE WAS 48,296.
THIS MODEL PICKUP HAD A NOISY INTERMEDIATE STEERING SHAFT REPLACED IN MID 2004 AND THE REPLACEMENT MADE THE SAME CLUCKING NOISE SHORTLY AFTER AND WE WERE TOLD TO WAIT UNTIL A FIX THAT WOULD LAST WAS ENGINEERED. WE LATER FOUND GM HAD A FIX BUT OUR EXTENDED WARRANTY IN DEC 2007 WAS OVER AND THE SERVICE BULLETIN THAT WOULD FIX THI…
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THIS MODEL PICKUP HAD A NOISY INTERMEDIATE STEERING SHAFT REPLACED IN MID 2004 AND THE REPLACEMENT MADE THE SAME CLUCKING NOISE SHORTLY AFTER AND WE WERE TOLD TO WAIT UNTIL A FIX THAT WOULD LAST WAS ENGINEERED. WE LATER FOUND GM HAD A FIX BUT OUR EXTENDED WARRANTY IN DEC 2007 WAS OVER AND THE SERVICE BULLETIN THAT WOULD FIX THIS COULD NOT BE DONE FREE. THIS NOISE WAS COMMON AND IT IS LOUD ENOUGH TO MASK OTHER NOISES THAT COULD CAUSE A WRECK OR LOSS OF CONTROL. GM SHOULD HAVE A RECALL SO THEY CAN FIX A FAILED COMPONENT THAT FINALLY THEY GOT RIGHT. FAILED COMPONENT WAS INTERMEDIATE STEERING SHAFT LOOSE AND NOISY. YES, I AM I CERTIFIED MECHANIC SINCE 1958. BAD SPELLING BUT A GOOD MECHANIC.
I HAVE A 2002 CHEVY SILVERADO,THAT'S IS EXPERIENCING BRAKING FAILURES AT LOW SPEED , LIKE COMING TO A COMPLETE STOP AT A INTERSECTION. I HAVE ALMOST SLID INTO SEVERAL INTERSECTIONS AND DO NO LONGER TRUST MY BRAKES TO STOP WHEN I NEED THEM. THIS PROBLEM IS THE SAME AS REPORTED UNDER A EXISTING RECALL # 05V37900. THE PROBLEM IS TH…
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I HAVE A 2002 CHEVY SILVERADO,THAT'S IS EXPERIENCING BRAKING FAILURES AT LOW SPEED , LIKE COMING TO A COMPLETE STOP AT A INTERSECTION. I HAVE ALMOST SLID INTO SEVERAL INTERSECTIONS AND DO NO LONGER TRUST MY BRAKES TO STOP WHEN I NEED THEM. THIS PROBLEM IS THE SAME AS REPORTED UNDER A EXISTING RECALL # 05V37900. THE PROBLEM IS THAT MY VEHICLE IS NOT LISTED DUE TO IT'S LOCATION, WHICH IS NORTH CAROLINA. THIS RECALL NEEDS TO BE EXPANDED TO COVER ADDITION STATES. *TR
BRAKE LINES RUSTING ON MY 02 SILVERADO 1500. *TR
CORROSION ON BRAKE LINES IN ENGINE COMPARTMENT WITH ONE BRAKE LINE RUPTURING AND CAUSING A LOSS OFF BRAKES. *TR
2002 CHEVROLET SILVERADO. 41,000 MILES. BRAKE LINES RUSTED OUT. NEARLY SMASHED INTO AN ENTIRE FAMILY WHEN I LOST BRAKES. DRIVING FOR 35 YEARS AND HAVE NEVER BEEN SO SCARED. SOMEONE PLEASE DO SOMETHING *TR
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT WAS DRIVING 40 MPH AND EXITING A RAMP. AS THE BRAKE WAS DEPRESSED, THE PEDAL WENT ALL THE WAY TO THE FLOORBOARD AND THE VEHICLE WOULD RESPOND TO THE CONTACTS BRAKING ATTEMPTS. THE CONTACT HAD TO ENGAGE THE EMERGENCY BRAKE TO STOP THE VEHICLE. THE CONTACT WAS ABLE…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT WAS DRIVING 40 MPH AND EXITING A RAMP. AS THE BRAKE WAS DEPRESSED, THE PEDAL WENT ALL THE WAY TO THE FLOORBOARD AND THE VEHICLE WOULD RESPOND TO THE CONTACTS BRAKING ATTEMPTS. THE CONTACT HAD TO ENGAGE THE EMERGENCY BRAKE TO STOP THE VEHICLE. THE CONTACT WAS ABLE TO DRIVE THE VEHICLE TO HIS RESIDENCE WHERE HE INSPECTED THE BRAKES AND DISCOVERED RUSTING OF THE STEEL LINES THAT CARRIED THE BRAKE FLUID. NEITHER THE DEALER NOR THE MANUFACTURER WAS CONTACTED IN REGARDS TO THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 80,000. UPDATED 02/03/11*LJ UPDATED 02/14/11
2002 CHEVY SILVERADO - BRAKE LIGHT INDICATOR CAME ON. CHECKED FLUID LEVELON MASTER CYLINDER - 1/2 EMPTY UPON FURTHER INSPECTION IDENTIFIED LEAK IN SECTION OF TUBING BEHIND FENDER WELL. TOOK TO LOCAL MECHANIC. BRAKES GAVE WAY AS HE PULLED INTO SHOP. HE INDICATED THAT ALL LINES WERE CORRODED BEHIND PLASTIC WHEEL WELL GUARD. R…
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2002 CHEVY SILVERADO - BRAKE LIGHT INDICATOR CAME ON. CHECKED FLUID LEVELON MASTER CYLINDER - 1/2 EMPTY UPON FURTHER INSPECTION IDENTIFIED LEAK IN SECTION OF TUBING BEHIND FENDER WELL. TOOK TO LOCAL MECHANIC. BRAKES GAVE WAY AS HE PULLED INTO SHOP. HE INDICATED THAT ALL LINES WERE CORRODED BEHIND PLASTIC WHEEL WELL GUARD. REPLACING ALL AFFECTED TUBING. *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.