IllustrationTHE SPARE TIRE HOIST FAILED CAUSING MY SPARE TIRE TO FALL OFF. LUCKILY THIS HAPPENED IN MY DRIVEWAY. IF THIS HAD HAPPENED ON THE ROAD IT COULD HAVE CAUSED A FATALITY TO ANYONE BEHIND ME. THE CABLE APPEARS TO BE THE SAME MATERIAL THAT THE TAILGATE CABLES WERE MADE OF. THE CABLES WERE ALREADY RECALLED BY GM. *TR
2002 GMC Sierra 1500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2002 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
80–25K
2425–50K
3750–75K
3275–100K
33100–150K
19150K+
153 reports with mileage · 13 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 64 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes, Hydraulic. Review the 53 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Suspension. Review the 9 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
17 crash reports0 fire reports5 injury reports
What owners actually said
166 reportsTL*THE CONTACT OWNS A 2002 GMC SIERRA 1500. WHILE DRIVING 5 MPH, THE BRAKE PEDAL EXTENDED TO THE FLOOR WHEN IT WAS DEPRESSED. THE VEHICLE WOULD THEN EXPERIENCE UNWANTED ABS ACTIVATION. THE CONTACT CALLED THE DEALER IN REFERENCE TO NHTSA CAMPAIGN ID NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTILOCK). A TECHNICIAN STATED TH…
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TL*THE CONTACT OWNS A 2002 GMC SIERRA 1500. WHILE DRIVING 5 MPH, THE BRAKE PEDAL EXTENDED TO THE FLOOR WHEN IT WAS DEPRESSED. THE VEHICLE WOULD THEN EXPERIENCE UNWANTED ABS ACTIVATION. THE CONTACT CALLED THE DEALER IN REFERENCE TO NHTSA CAMPAIGN ID NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTILOCK). A TECHNICIAN STATED THAT HIS VEHICLE WAS INCLUDED IN THE RECALL, BUT THEY WOULD ONLY ASSUME RESPONSIBILITY FOR REPAIRING THE RELUCTOR RING. THE CONTACT WOULD HAVE TO PAY FOR THE HUB ASSEMBLY REPAIR AT THE COST OF $800. THE VEHICLE HAS NOT BEEN REPAIRED. HE CALLED THE MANUFACTURER ON NUMEROUS OCCASIONS AND IS STILL WAITING FOR A RESPONSE. THE FAILURE AND CURRENT MILEAGES WERE 52,500.
ABS ACTIVATING AT LOW SPEEDS WAS BROUGHT IN UNDER WARRANTY AND REPAIRED ONCE ALREADY. PROBABLY 2004. NOW SAME THING AGAIN 2008. VERY DANGEROUS WHEN YOU STEP ON BRAKE AND ABS ACTIVATES FOR NO REASON (OTHER THAN POOR DESIGN) AT LOW SPEED AND INCREASES YOUR STOPPING DISTANCE BY 10 PLUS FEET. *TR
THE ABS SYSTEM HAS AN OPEN SHORT BETWEEN THE ABS PUMP AND THE ABS MODULE. THESE COMPONENTS ARE LOCATED UNDER THE VEHICLE MOUNTED TO THE FRAME RAIL. THIS IS SAFETY RELATED EQUIPMENT AND WAS MOUNTED IN A HIGHLY CORROSIVE SPOT, SUBJECT TO ROAD SALT AND WATER. *TR
SIMILAR TO NHTSA: 05V161000 MY 2002 GMC SIERRA WITH AUTOMATIC TRANNY EXPERIENCES THE VERY SAME PREMATURE PARKING BRAKE WEAR. WEAR IS UNEVEN AND JUST IN 2 LITTLE PLACES INSTEAD OF EVEN WEAR ON WHOLE SHOE. BRAKE WEARS VERY QUICKLY THEN WILL NOT HOLD PUTTING UNDUE STRESS AND CAUSING FAILURE OF PARKING PAWL IN AUTOMATIC TRANNY. G…
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SIMILAR TO NHTSA: 05V161000 MY 2002 GMC SIERRA WITH AUTOMATIC TRANNY EXPERIENCES THE VERY SAME PREMATURE PARKING BRAKE WEAR. WEAR IS UNEVEN AND JUST IN 2 LITTLE PLACES INSTEAD OF EVEN WEAR ON WHOLE SHOE. BRAKE WEARS VERY QUICKLY THEN WILL NOT HOLD PUTTING UNDUE STRESS AND CAUSING FAILURE OF PARKING PAWL IN AUTOMATIC TRANNY. GM REFUSED TO DO ANYTHING. GM WILL NOT FIX MY VEHICLE OR APPLY RECALL SINCE I DO NOT HAVE MANUAL TRANNY. IF ANYTHING, AUTOMATIC TRANNY IS WORSE SINCE IT DAMAGES TRANNY DUE TO STRESS ON PAWL SINCE PARKING BRAKE DOES NOT HOLD VEHICLE. WHEN BRAKE SHOES WERE REPLACED, THEY WORKED FOR VERY SHORT PERIOD OF TIME. $250 TO REPLACE AND I WAS TOLD IT WAS A KNOWN PROBLEM AND I WOULD BE WASTING MY MONEY BECAUSE THEY WOULD WEAR OUT QUICKLY AGAIN. ODD THAT SHOES WEAR WHEN VEHICLE TYPICALLY IS NOT MOVING WHEN BRAKE IS APPLIED OR RELEASED. *TR
SINCE PURCHASING MY 2002 SIERRA PICKUP WITH A 5.3L V-8 I HAVE NOTICED A TICKING SOUND WHEN YOU FIRST START UP THE VEHICLE. WORSE WHEN IT IS COLD OUT. AFTER A FEW MINUTES IT STOPS. I HAVE HAD THE DEALER LOOK AT IT IN THE PAST AND THEY DIDN'T SEEM TOO CONCERNED WITH IT AND OR SAID NO NOISE WAS FOUND. I CALLED GMC AND THEY ISSUED…
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SINCE PURCHASING MY 2002 SIERRA PICKUP WITH A 5.3L V-8 I HAVE NOTICED A TICKING SOUND WHEN YOU FIRST START UP THE VEHICLE. WORSE WHEN IT IS COLD OUT. AFTER A FEW MINUTES IT STOPS. I HAVE HAD THE DEALER LOOK AT IT IN THE PAST AND THEY DIDN'T SEEM TOO CONCERNED WITH IT AND OR SAID NO NOISE WAS FOUND. I CALLED GMC AND THEY ISSUED ME AN EXTENDED WARRANTY FOR 5 YEARS OR 100,000 MILES. WITH APPROXIMATELY 68,000 MILES ON THE TRUCK NOW THE NOISE IS GETTING WORSE AND IS QUITE LOUD WHEN YOU START IT UP IN THE MORNING. IT ALSO TAKES LONGER TO DISAPPEAR NOW. WHEN YOU START TO DRIVE IT, IT IS QUITE LOUD AND YOU WONDER IF IT IS DOING DAMAGE. IT SOUNDS LIKE A HYDRAULIC LIFTER NOT GETTING OIL. AFTER IT WARMS UP IN A FEW MINUTES IN DISAPPEARS. *TR
2002 GMC SIERRA WITH AUTOMATIC TRANSMISSION HAS BOTH THE ABS PROBLEMS THAT HAVE A RECALL ONLY ALONG EAST COAST STATES AND THE PARKING BRAKE PROBLEM THAT HAS A RECALL FOR MANUAL TRANSMISSIONS. *TR
TL*THE CONTACT OWNS A 2002 GMC SIERRA 1500. WHILE APPLYING PRESSURE TO THE BRAKE PEDAL AT 5 MPH, THE CONTACT HEARD A LOUD CLICKING NOISE COMING FROM THE ANTILOCK BRAKE UNIT. AS HE APPLIED PRESSURE TO THE BRAKES TO STOP THE VEHICLE, IT FAILED TO STOP. THE CONTACT CRASHED INTO A PARKING METER. THE DEALER STATED THAT HIS VIN WA…
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TL*THE CONTACT OWNS A 2002 GMC SIERRA 1500. WHILE APPLYING PRESSURE TO THE BRAKE PEDAL AT 5 MPH, THE CONTACT HEARD A LOUD CLICKING NOISE COMING FROM THE ANTILOCK BRAKE UNIT. AS HE APPLIED PRESSURE TO THE BRAKES TO STOP THE VEHICLE, IT FAILED TO STOP. THE CONTACT CRASHED INTO A PARKING METER. THE DEALER STATED THAT HIS VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN ID NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTI-LOCK), ALTHOUGH HE WAS EXPERIENCING THE SAME FAILURE. THE VEHICLE WAS REPAIRED AT THE CONTACT'S EXPENSE. THE MANUFACTURER DID NOT PROVIDE ANY ASSISTANCE. THE FAILURE MILEAGE WAS 70,000.
TL*THE CONTACT OWNS A 2002 GMC SIERRA 1500. THE CONTACT RECEIVED A RECALL NOTICE IN SEPTEMBER OF 2006 FOR THE ABS. THE DEALER KEPT THE VEHICLE FOR A MONTH AND PERFORMED THE RECALL REPAIR. SINCE THE REPAIR, THE VEHICLE DOES NOT ROLL BACK WHILE PARKED ON AN INCLINE WITH THE EMERGENCY BRAKE ENGAGED; HOWEVER, IT ROLLS BACK ON LEV…
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TL*THE CONTACT OWNS A 2002 GMC SIERRA 1500. THE CONTACT RECEIVED A RECALL NOTICE IN SEPTEMBER OF 2006 FOR THE ABS. THE DEALER KEPT THE VEHICLE FOR A MONTH AND PERFORMED THE RECALL REPAIR. SINCE THE REPAIR, THE VEHICLE DOES NOT ROLL BACK WHILE PARKED ON AN INCLINE WITH THE EMERGENCY BRAKE ENGAGED; HOWEVER, IT ROLLS BACK ON LEVEL GROUND. THE CONTACT REPAIRED THE ROTORS AND THE BRAKE SYSTEM HIMSELF IN NOVEMBER OF 2007 BECAUSE THE ROTORS WERE CORRODING, WHICH CAUSED THE BRAKES TO PULSATE. THE DEALER WOULD NOT STATE WHETHER THE VIN WAS INCLUDED IN NHTSA CAMPAIGN ID NUMBER 05V161000 (PARKING BRAKE). THE FAILURE MILEAGE WAS 24,000 AND CURRENT MILEAGE WAS 34,503. UPDATED 05/19/08. *LJ THE CONSUMER STATED THERE WAS AN ACCIDENT AND THERE WAS DAMAGE TO HIS VEHICLE. UPDATED 05/19/08
GM TECHNICAL BULLETIN 00-07-30-022C (AUTOMATIC TRANSMISSION) FAILURE OF REACTION SUN GEAR WITH ONLY 36,XXX MILES (2002 GMC SIERRA 1500 4.8L). THIS APPEARS TO HAVE BEEN A PROBLEM FOR AT LEAST A DECADE WITH CONTINUAL FAILURES UNTIL GM UPGRADED THE DEFECTIVE COMPONENTS IN 2003. REPAIR ESTIMATES COULD BE OVER $2,000. CASH AVAILAB…
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GM TECHNICAL BULLETIN 00-07-30-022C (AUTOMATIC TRANSMISSION) FAILURE OF REACTION SUN GEAR WITH ONLY 36,XXX MILES (2002 GMC SIERRA 1500 4.8L). THIS APPEARS TO HAVE BEEN A PROBLEM FOR AT LEAST A DECADE WITH CONTINUAL FAILURES UNTIL GM UPGRADED THE DEFECTIVE COMPONENTS IN 2003. REPAIR ESTIMATES COULD BE OVER $2,000. CASH AVAILABLE = $200. GM SHOULD TAKE RESPONSIBILITY FOR KNOWN DEFECTIVE PARTS. *TR
Official recalls
104V562000 · Equipment Adaptive/mobility
Nov 26, 2004
ON CERTAIN VANS EQUIPPED WITH SURE-LOK WHEELCHAIR SECUREMENT SYSTEMS, THE SPROCKET TEETH OF THE RETRACTOR ASSEMBLY IS OUT OF ALIGNMENT.
Consequence & remedy
Consequence: IN THE EVENT OF A VEHICLE CRASH, THE WHEELCHAIR MAY NOT BE ADEQUATELY SECURED POSSIBLY RESULTING IN INJURIES TO A WHEELCHAIR OCCUPANT.
Remedy: DEALERS WILL INSPECT AND REPLACE THE WHEELCHAIR SECUREMENT RETRACTORS AS NECESSARY. SURE-LOK WILL HANDLE THE REPAIRS FOR THIS CAMPAIGN. OWNERS SHOULD CONTACT SURE-LOCK AT 1-908-231-1804 OR MOBILITYWORKS AT 1-800-769-8267.
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.