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2001 GMC Sierra 1500

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2001 GMC Sierra 1500 do not stand out strongly from the model-year median of 181.

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How this year compares

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What owners reported most

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When problems were reported

Mileage at the reported incident

123 reports with mileage · 17 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 59 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes. Review the 40 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Parking Brake. Review the 13 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

10 crash reports0 fire reports2 injury reports

Service Brakes, Hydraulic complaints

59 reports
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130,000 miles · Apr 10, 2010
Service Brakes, Hydraulic

I OWN A 2001 GMC SIERRA 1500 PICKUP TRUCK. DURING EARLY MARCH OF THIS YEAR, MY BRAKES FAILED DUE TO RUST AND CORROSION ON THE BRAKE LINES. TWO OF THE STEEL BRAKE LINES UNDER THE TRUCK WERE SO CORRODED WITH RUST THAT THE BRAKE FLUID RUPTURED THE LINES WHEN I APPLIED THE BRAKES, AND POURED OUT ON THE GROUND. MY BRAKED PEDAL WENT…

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I OWN A 2001 GMC SIERRA 1500 PICKUP TRUCK. DURING EARLY MARCH OF THIS YEAR, MY BRAKES FAILED DUE TO RUST AND CORROSION ON THE BRAKE LINES. TWO OF THE STEEL BRAKE LINES UNDER THE TRUCK WERE SO CORRODED WITH RUST THAT THE BRAKE FLUID RUPTURED THE LINES WHEN I APPLIED THE BRAKES, AND POURED OUT ON THE GROUND. MY BRAKED PEDAL WENT TO THE FLOOR. I HAD ZERO BRAKES WITHOUT WARNING. IT WAS ONLY BY SHEER LUCK THAT I WAS TRAVELING VERY SLOWLY WHEN THIS OCCURRED, AND I WAS ABLE TO STOP USING THE EMERGENCY BRAKES. I WAS IN THE TOWN OF RENOVO, AND COULD HAVE KILLED SOMEONE DUE TO THIS MISHAP. WE LIVE ON A MOUNTAIN, AND TOW A TRAILER WITH HORSES. THIS COULD HAVE BEEN A COMPLETE DISASTER UNDER OTHER CIRCUMSTANCES. THERE WAS ABSOLUTELY NO WARNING THAT THE BRAKES WOULD SOON COMPLETELY FAIL. IT COST OVER ONE THOUSAND DOLLARS TO REPLACE ALL OF THE BRAKE LINES ON OUR TRUCK. I HAVE THE RECEIPT. *TR

NHTSA ODI #10324814

66,500 miles · Feb 2, 2010
Service Brakes, Hydraulic

2001 GMC 1500 SIERRA 4X4 CURRENTLY HAS 68K MILES. VEHICLE SPEED SENSORS CAUSING ABS BRAKE ACTIVATION AT SPEEDS BELOW 12MPH. VEHICLE WAS REPAIRED ORIGINALLY ON 2/28/2005 FOR THIS CONDITION. VEHICLE IS HAVING A REOCCURANCE OF THIS CURRENTLY NOTICED ON OR AROUND 10/2009. VEHICLE WAS BROUGHT INTO A DEALERSHIP FOR DIAGNOSIS AND IT WA…

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2001 GMC 1500 SIERRA 4X4 CURRENTLY HAS 68K MILES. VEHICLE SPEED SENSORS CAUSING ABS BRAKE ACTIVATION AT SPEEDS BELOW 12MPH. VEHICLE WAS REPAIRED ORIGINALLY ON 2/28/2005 FOR THIS CONDITION. VEHICLE IS HAVING A REOCCURANCE OF THIS CURRENTLY NOTICED ON OR AROUND 10/2009. VEHICLE WAS BROUGHT INTO A DEALERSHIP FOR DIAGNOSIS AND IT WAS DIAGNOSED THAT SENORS ARE IN NEED OF COMPLETE REPLACEMENT, HOWEVER GENERAL MOTORS HAS STATED THEY WILL NOT REPLACE THE SENSORTS AND A RECALL HAS NEVER EXISTED FOR SAID VEHICLE (REF NHTSA RECALL# 05V379000). GENERAL MOTORS CONTACT THAT STATED THIS RECALLL DID NOT EXIST. CURRENTLY, THE FAILURE HAS NOT BEEN REPAIRED, AND OLD PARTS ARE AVAILABLE. THIS CONDITION OCCURS 95% OF THE TIME WHEN BRAKING BELOW 12MPH, AND MAKES IT EXTREMELY DIFFICULT TO STOP THE VEHICLE AT INTERSECTIONS, TRAFFIC, ETC. LOOKING FOR GM TO CORRECT THIS PROBLEM BEFORE ANY ACCIDENTS OR INJURIES OCCUR. ALSO PARKING BRAKE HAS NEVER SUFFICIENTLY HELD VEHICLE AS IT GETS DEPRESSED TO FLOOR AND VEHICLE STILL CAN ROLL, PROMOTING A HAZARD TO OTHERS IN THE VICINITY IF THE TRANSMISSION LOCK GIVES OUT. *TR

NHTSA ODI #10304073

99,875 miles · Jan 23, 2010
Service Brakes, Hydraulic

THE INCIDENT STARTED WHEN THE OWNER OF REPAIR SERVICE CENTER BACKED MY VEHICLE OUT OF HIS GARAGE, UPON APPLYING THE BRAKES THE ENTIRE BRAKE SYSTEM FAILED. THIS FAILURE RESULTED IN THE VEHICLE ROLLING ONTO A MAJOR ROADWAY. FORTUNATELY, THIS BRAKE FAILURE DID NOT RESULT IN A COLLISION WITH PEDESTRIANS, FIXED OBJECT, OR OTHER VEH…

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THE INCIDENT STARTED WHEN THE OWNER OF REPAIR SERVICE CENTER BACKED MY VEHICLE OUT OF HIS GARAGE, UPON APPLYING THE BRAKES THE ENTIRE BRAKE SYSTEM FAILED. THIS FAILURE RESULTED IN THE VEHICLE ROLLING ONTO A MAJOR ROADWAY. FORTUNATELY, THIS BRAKE FAILURE DID NOT RESULT IN A COLLISION WITH PEDESTRIANS, FIXED OBJECT, OR OTHER VEHICLES WHICH COULD HAVE RESULTED IN DEATHS AND INJURIES. UPON INSPECTION OF THE BRAKE SYSTEM, IT WAS DISCOVERED THAT TWO STEEL BRAKE LINES HAD RUPTURED AND CAUSED THE BRAKE FLUID TO ESCAPE PROFUSELY THUS BRAKE FAILURE. THESE TWO RUPTURED LINES WERE LOCATED NEXT TO THE ABS ELECTRO-HYDRAULIC CONTROL UNIT. THESE STEEL BRAKE LINES HAD EXCESSIVE RUSTING AND ROTTING. THE ENTIRE STEEL BRAKE LINE SYSTEM SHOWED EVIDENCE OF SEVERE RUSTING OR ROTTING. TO CORRECT THIS EXTREMELY HAZARDOUS AND DANGEROUS CONDITION I HAD THE ENTIRE STEEL BRAKE LINES REPLACED. I HAVE SECURED THE ORIGINAL, FAILED BRAKE LINES. I'D APPRECIATE AN INVESTIGATION INTO THIS SERIOUS CONDITION TO PREVENT POTENTIALLY DANGEROUS COLLISIONS WHICH COULD RESULT IN INJURIES AND/OR DEATH. AN INVESTIGATION SHOULD ALSO BE CONDUCTED TO DETERMINE IF THERE IS A POSSIBILITY OF DEFECTIVE MATERIAL AND/OR DESIGN. *TR

NHTSA ODI #10302051

123,000 miles · Oct 22, 2009
Service Brakes, Hydraulic

BRAKES FAILED, BRAKELINE RUSTED AND LEAKED FLUID , PEDAL WENT TO THE FLOOR. COULD NOT STOP TRUCK, EMERGENCY BRAKE DID NOT WORK EITHER, HAD TO DOWNSHIFT TO THE LOWEST GEAR, WENT OF THE ROAD TO AVOID CARS IN FRONT OF ME, TOOK 200 YARDS TO STOP. SCARY FEELING. NEVER HAD A BRAKELINE FAIL LIKE THAT. *TR

NHTSA ODI #10289336

90,000 miles · Oct 7, 2009
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2001 GMC SIERRA 1500. AT LOW SPEEDS HE EXPERIENCED UNWANTED ANTI-LOCK BRAKE (ABS) ACTIVATION. A MECHANIC REPLACED THE FRONT AND REAR BRAKES. THE DEALER CONFIRMED THAT RECALL # 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTI-LOCK) FREE REMEDY WAS NOT RELATED TO HIS VEHICLE IDENTIFICATION NUMBER. NO REPAIRS WERE …

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TL*THE CONTACT OWNS A 2001 GMC SIERRA 1500. AT LOW SPEEDS HE EXPERIENCED UNWANTED ANTI-LOCK BRAKE (ABS) ACTIVATION. A MECHANIC REPLACED THE FRONT AND REAR BRAKES. THE DEALER CONFIRMED THAT RECALL # 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTI-LOCK) FREE REMEDY WAS NOT RELATED TO HIS VEHICLE IDENTIFICATION NUMBER. NO REPAIRS WERE MADE. THE FAILURE MILEAGE WAS 90,000. THE CURRENT MILEAGE WAS 140,000 .

NHTSA ODI #10286637

105,268 miles · Aug 17, 2009
Service Brakes, Hydraulic

COMPLETE BRAKE FAILURE ON A 2001 GMC SIERRA 1500 PICKUP TRUCK. ON THE HW1 FWY ON THE ISLAND OF OAHU , HAWAII @ 7:30 PM HAWAIIAN TIME. WAS GOING 60 MILES PER HOUR WITH NO BRAKES. THE SYSTEM DIDNT RESPOND OR REPORT A FAILURE. HAD TOO DOWN SHIFT WITH AUTOMATIC TRANSMISSION & USE PARKING BRAKE TOO STOP VEHICAL & WAS ABLE 2 MANUEVER…

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COMPLETE BRAKE FAILURE ON A 2001 GMC SIERRA 1500 PICKUP TRUCK. ON THE HW1 FWY ON THE ISLAND OF OAHU , HAWAII @ 7:30 PM HAWAIIAN TIME. WAS GOING 60 MILES PER HOUR WITH NO BRAKES. THE SYSTEM DIDNT RESPOND OR REPORT A FAILURE. HAD TOO DOWN SHIFT WITH AUTOMATIC TRANSMISSION & USE PARKING BRAKE TOO STOP VEHICAL & WAS ABLE 2 MANUEVER THE TRUCK ONTO THE SHOULDER OF HW1 FWY & SLID ON THE RED DIRT UNTIL IT STOP SIX FEET FROM A CALL BOX. PLEASE HELP TOO AVOID THIS HAPPENING TOO ANYONE ELSE. THE TRUCK IS @ GMC CUTTER IN WAIPAHU HAWAII.

NHTSA ODI #10280720

37,600 miles · Feb 2, 2009
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2001 GMC SIERRA 1500. THE CONTACT STATED THAT THE ANTILOCK BRAKES PREMATURELY ACTIVATE ON DRY PAVEMENT. THE DEALER STATED THAT THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN ID NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTILOCK). THE FAILURE MILEAGE WAS 37,600. UPDATED 3/5/09 *CN UPDATED 03/10/09. *JB

NHTSA ODI #10257205

50,000 miles · Sep 29, 2008
Electrical SystemService Brakes, Hydraulic

I BOUGHT A GMC SIERRA C-1500 PICKUP TRUCK, NEW IN 2001. IN SEPT '05, THE ABS LIGHT CAME ON & A HUMMING NOISE COULD BE HEARD EVEN AFTER THE IGNITION WAS TURNED OFF. THE ODOMETER WAS AT 50,000 MILES, AT THAT TIME. THE PROBLEM WAS THE EBCM SHORTED-OUT AND NEEDED TO BE REPLACED. NOW, 31,000 MILES & 3 YEARS LATER (81,000 TOTAL MILE…

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I BOUGHT A GMC SIERRA C-1500 PICKUP TRUCK, NEW IN 2001. IN SEPT '05, THE ABS LIGHT CAME ON & A HUMMING NOISE COULD BE HEARD EVEN AFTER THE IGNITION WAS TURNED OFF. THE ODOMETER WAS AT 50,000 MILES, AT THAT TIME. THE PROBLEM WAS THE EBCM SHORTED-OUT AND NEEDED TO BE REPLACED. NOW, 31,000 MILES & 3 YEARS LATER (81,000 TOTAL MILES), IT SHORTED-OUT AGAIN & NEEDED TO BE REPLACED. THE COST OF THIS PART ALONE IS $1,000.00 (+ OVER $200.00 INSTALLATION). THAT PART ISN'T EVEN SUBJECTED TO NORMAL 'WEAR & TEAR' LIKE BRAKES, BECAUSE IT'S NOT A MOVING PART. IT'S A COMPUTER MODULE THAT CONTROLS THE ANTI-LOCK BRAKES, THAT IS VITAL IN CASE OF EMERGENCY BRAKING, WHICH LUCKILY I HAVEN'T NEEDED TO USE. I DON'T KNOW IF THE EBCM (PART) IS DEFECTIVE ITSELF OR IF SOMETHING ELSE IS CAUSING IT TO SHORT OUT, BUT I DON'T THINK THIS PART SHOULD FAIL, THIS OFTEN. REQUIRING A THIRD EBCM IN 7 YEARS, IN MY OPINION, IS UNACCEPTABLE. I'VE CONTACTED GMC & I DON'T THINK I RECEIVED A LEGITIMATE REASON FOR THE FAILURE OF THE PART'JUST A POOR EXCUSE. HIS REASONING WAS THAT MY VEHICLE IS 7 YEARS OLD & HAS 81,000 MILES, THAT IT'S ACCEPTABLE FOR A COMPUTER MODULE, WHICH CONTROLS THE ANTI-LOCK BRAKES (A SAFETY ISSUE), TO MALFUNCTION & NEED REPLACING TWICE. THAT 'REASON' WAS TOTALLY ABSURD IN MY OPINION. MILEAGE SHOULDN'T COME INTO PLAY BECAUSE IT'S AN ELECTRONIC PART NOT A MOVING PART. IF THEY WANT TO JUSTIFY IT BECAUSE THE TRUCK IS 7 YEARS OLD'.IT WAS THE PART THAT FAILED, NOT THE TRUCK & IT WAS ONLY 3 YEARS OLD AND ONLY 31,000 MILES HAD BEEN ADDED, WHEN IT SHORTED-OUT AGAIN! SO, THEY SHOULDN'T EVEN BE TALKING ABOUT THE VEHICLE ITSELF'JUST THE FAULTY PART WHICH HAPPENS TO CONTROL A VERY IMPORTANT SAFETY FEATURE! *TR

NHTSA ODI #10243960

33,000 miles · Sep 17, 2008
Parking BrakeService Brakes, Hydraulic

TL*THE CONTACT OWNS A 2001 GMC SIERRA 1500. THE CABLE STOP HAS FALLEN OFF THE EMERGENCY BRAKE RELEASE CABLE. THE CONTACT STATED THAT HE HAS BEEN DRIVING WITHOUT AN EMERGENCY BRAKE EVER SINCE. THE DEALER STATED THAT THERE WERE NO RECALLS FOR THIS FAILURE. THE FAILURE MILEAGE WAS 33,000. UPDATED 06/03/10*BF THE CONSUMER A…

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TL*THE CONTACT OWNS A 2001 GMC SIERRA 1500. THE CABLE STOP HAS FALLEN OFF THE EMERGENCY BRAKE RELEASE CABLE. THE CONTACT STATED THAT HE HAS BEEN DRIVING WITHOUT AN EMERGENCY BRAKE EVER SINCE. THE DEALER STATED THAT THERE WERE NO RECALLS FOR THIS FAILURE. THE FAILURE MILEAGE WAS 33,000. UPDATED 06/03/10*BF THE CONSUMER ALSO STATED THE ABS ACTIVATED WHEN IT SHOULDN'T HAVE. UPDATED 06/04/10.*JB

NHTSA ODI #10242552

123,007 miles · Sep 4, 2008
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2001 GMC SIERRA 1500. THE CONTACT STATED THAT THE ECM IN THE VEHICLE EMITS INVALID DATA INTO THE SYSTEM. AS A RESULT, MISCOMMUNICATION IN THE HYDRAULIC UNIT OCCURS WHILE APPLYING HYDRAULIC PRESSURE TO ALL FOUR TIRES. NHTSA CAMPAIGN ID NUMBER 06E050000 (SERVICE BRAKES, AIR) WAS REFERENCED. THE FAILURE MI…

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TL*THE CONTACT OWNS A 2001 GMC SIERRA 1500. THE CONTACT STATED THAT THE ECM IN THE VEHICLE EMITS INVALID DATA INTO THE SYSTEM. AS A RESULT, MISCOMMUNICATION IN THE HYDRAULIC UNIT OCCURS WHILE APPLYING HYDRAULIC PRESSURE TO ALL FOUR TIRES. NHTSA CAMPAIGN ID NUMBER 06E050000 (SERVICE BRAKES, AIR) WAS REFERENCED. THE FAILURE MILEAGE WAS 123,007.

NHTSA ODI #10240934

Official recalls

2

04V562000 · 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.

01V125000 · Equipment:other:labels

Apr 10, 2001

VEHICLE DESCRIPTION: CERTAIN 2-WHEEL DRIVE PICKUP TRUCKS FAIL TO COMPLY WITH REQUIREMENTS OF FMVSS NO. 120, "TIRE SELECTION AND RIMS FOR MOTOR VEHICLES OTHER THAN PASSENGER CARS." THE PROBLEM WAS CAUSED BY A COMPUTER ERROR THAT RESULTED IN THE CERTIFICATION LABEL LISTING TIRE SIZE AND INFLATION PRESSURE INFORMATION THAT DIFFER FROM THE TIRE SIZE AND THE INFLATION PRESSURE INFORMATION FOR THE TIRES ON THE VEHICLE. IF THE VEHICLE OWNER OR SOMEONE SERVICING THE VEHICLE INFLATES THE TIRES ACCORDING TO THE PRESSURE SPECIFIED ON THE LABEL VERSUS THE APPROPRIATE PRESSURE FOR THE TIRES, THE TIRES COULD BE UNDER-INFLATED OR OVER-INFLATED DEPENDING ON THE TIRES MOUNTED ON THE VEHICLE.

Consequence & remedy

Consequence: IF THE TIRES ARE UNDER-INFLATED, IT COULD REDUCE THE TREAD LIFE OF THE TIRE, AND THE TIRE COULD DEGRADE TO A POINT OF ALLOWING SUDDEN AIR LOSS. IF THE TIRES ARE OVER-INFLATED, IT COULD REDUCE THE TREAD LIFE OF THE TIRE AND INCREASE SUSCEPTIBILITY TO ROAD HAZARD DAMAGE. IF SUDDEN AIR LOSS OR A ROAD HAZARD CAUSES DAMAGE TO A TIRE, CONTROL OF THE VEHICLE COULD BE ADVERSELY AFFECTED AND COULD RESULT IN A VEHICLE CRASH.

Remedy: OWNERS WILL BE PROVIDED WITH A NEW LABEL AND INSTALLATION INSTRUCTIONS. HOWEVER, A DEALER CAN INSTALL THE LABEL IF THE OWNER SO DESIRES. OWNER NOTIFICATION BEGAN MAY 31, 2001. OWNERS WHO DO NOT RECEIVE THE LABEL AND INSTALLATION INSTRUCTIONS WITHIN A REASONABLE TIME SHOULD CONTACT CHEVROLET AT 1-800-222-1020 OR GMC AT 1-800-462-8782.

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

2

EA04011 · 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.