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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 →
166Owner complaints

Model-year median: 181

1Recall campaigns

View recall details →

2Investigations

View investigation details →

How this year compares

Owner complaints by model year

Other model years Selected year
158
1999181
2000140
2001166
2002180
2003212
2004177
2005
Compare all Sierra 1500 years →

Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

Service Brakes
64Service Brakes, Hydraulic
53Suspension
9Parking Brake
8Structure
8
All reported categories
Steering
7Air Bags
5Power Train
5Wheels
5Unknown Or Other
4Electrical System
3Exterior Lighting
3Engine And Engine Cooling
2Equipment
2Latches/locks/linkages
2Seat Belts
2Service Brakes, Electric
2Fuel/propulsion System
1Seats
1Service Brakes, Air
1Tires
1Vehicle Speed Control
1

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

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

Air Bags complaints

5 reports
Clear category filter
200,000 miles · Jun 27, 2016
Air BagsCrashInjury

TL* THE CONTACT OWNS A 2002 GMC SIERRA 1500. WHILE DRIVING 55 MPH, THE CONTACT'S SON CRASHED INTO THE REAR OF THE PRECEDING VEHICLE. THE AIR BAGS FAILED TO DEPLOY. THE DRIVER SUSTAINED A CONCUSSION, A NECK INJURY, NOSE BRUISING, AND BACK INJURIES DUE TO THE SEAT BELT TIGHTENING. MEDICAL ATTENTION WAS RECEIVED. A POLICE REPORT WA…

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TL* THE CONTACT OWNS A 2002 GMC SIERRA 1500. WHILE DRIVING 55 MPH, THE CONTACT'S SON CRASHED INTO THE REAR OF THE PRECEDING VEHICLE. THE AIR BAGS FAILED TO DEPLOY. THE DRIVER SUSTAINED A CONCUSSION, A NECK INJURY, NOSE BRUISING, AND BACK INJURIES DUE TO THE SEAT BELT TIGHTENING. MEDICAL ATTENTION WAS RECEIVED. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO A TOWING COMPANY. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND NO REPAIRS WERE MADE TO THE VEHICLE. THE FAILURE MILEAGE WAS 200,000.

NHTSA ODI #10877011

155,000 miles · Jan 24, 2013
Air BagsCrashInjury

WHILE DRIVING DOWN THE HIGHWAY IN THE FAR RIGHT LANE. GOING ABOUT 60 MILES A HOUR WE HIT A PATCH OF BLACK ICE. THE VEHICLE STARTED TO FISHTAIL. THE DRIVER KEPT THE VEHICLE FROM SPINNING OUT AND DOING A 360. WE CROSSED OVER 3 LANES OF TRAFFIC, WITHOUT HITTING ANOTHER VEHICLE. WHEN THE TRUCK FINALLY GRIPED ON TO THE ROAD WE HAD N…

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WHILE DRIVING DOWN THE HIGHWAY IN THE FAR RIGHT LANE. GOING ABOUT 60 MILES A HOUR WE HIT A PATCH OF BLACK ICE. THE VEHICLE STARTED TO FISHTAIL. THE DRIVER KEPT THE VEHICLE FROM SPINNING OUT AND DOING A 360. WE CROSSED OVER 3 LANES OF TRAFFIC, WITHOUT HITTING ANOTHER VEHICLE. WHEN THE TRUCK FINALLY GRIPED ON TO THE ROAD WE HAD NO WAY OF AVOIDING THE CENTER MEDIAN, A CONCRET WALL DIVIDER. UPON IMPACT NEITHER THE DRIVERSIDE OR THE PASSENGERSIDE AIRBAGS DEPLOYED. WE HIT THE WALL AT A 70 DEGREE ANGLE SO IT WAS PRETTY MUCH HEAD ON. WHY DIDN'T THE AIRBAGS DEPLOY??????? FROM READING OTHER POSTS ON OTHER SITES IT SOUNDS LIKE THIS HAPPENS A LOT. WHY ISN'T THERE A RECALL. APPARENTLY THERE IS SOMETHING WRONG AND IT'S UNSAFE. *TR ## VIN PASSED ## GMC, SIERRA, 1500, 2002 ##

NHTSA ODI #10494641

103,000 miles · May 24, 2012
Air BagsCrashInjury

TL* THE CONTACT OWNS A 2002 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 65 MPH,THE CONTACT CRASHED INTO A CONCRETE WALL HEAD FIRST. THE AIR BAGS DID NOT DEPLOY. THE CONTACT SUSTAINED INJURIES TO THE RIBS, SHOULDER AND RIGHT KNEE. THE PASSENGER SUSTAINED INJURIES TO THE RIGHT KNEE AND LACERATIONS TO THE NECK FROM THE SEAT BELT. …

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TL* THE CONTACT OWNS A 2002 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 65 MPH,THE CONTACT CRASHED INTO A CONCRETE WALL HEAD FIRST. THE AIR BAGS DID NOT DEPLOY. THE CONTACT SUSTAINED INJURIES TO THE RIBS, SHOULDER AND RIGHT KNEE. THE PASSENGER SUSTAINED INJURIES TO THE RIGHT KNEE AND LACERATIONS TO THE NECK FROM THE SEAT BELT. THE CONTACT AND THE PASSENGER WERE TRANSPORTED TO THE HOSPITAL VIA AMBULANCE. THE POLICE REPORTED TO THE SCENE AND A REPORT WAS FILED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE MANUFACTURER HAD THE VEHICLE INSPECTED BY AN ENGINEER. THE CONTACT STATED THE MANUFACTURER DID NOT EXPLAIN THE CAUSE OF THE AIR BAG FAILURE. THE VEHICLE WAS DESTROYED AND NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 103,000.

NHTSA ODI #10459570

103,000 miles · Mar 19, 2012
Air BagsCrashInjury

WE WERE TRAVELING WEST BOUND ON GEORGE BUSH TURNPIKE IN PLANO, TEXAS AT THE N CENTRAL EXPRESSWAY EXIT A VEHICLE TRAVELING IN THE LANE TO OUR RIGHT CAME INTO MY LANE CUTTING ME OFF AND I SWERVED TO MISS SAID VEHICLE AND CORRECTED TO THE LEFT AND CORRECTED BACK TO THE RIGHT TO MISS A VEHICLE COMING UP ON MY LEFT. IT HAD BEEN RAINI…

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WE WERE TRAVELING WEST BOUND ON GEORGE BUSH TURNPIKE IN PLANO, TEXAS AT THE N CENTRAL EXPRESSWAY EXIT A VEHICLE TRAVELING IN THE LANE TO OUR RIGHT CAME INTO MY LANE CUTTING ME OFF AND I SWERVED TO MISS SAID VEHICLE AND CORRECTED TO THE LEFT AND CORRECTED BACK TO THE RIGHT TO MISS A VEHICLE COMING UP ON MY LEFT. IT HAD BEEN RAINING AND THE ROADS WERE SLICK, WE WENT INTO A SKID AND INTO A CONCERT BARRIER TRAVELING AROUND 60 TO 65 MILES AN HOUR. NO OTHER VEHICLE WAS INVOLVED. MYSELF AND MY PASSENGER WERE BOTH INJURED. WE RECEIVED SUBSTANTIAL SEATBELT TRAUMA TO OUR UPPER TORSO AND MYSELF AS THE DRIVE SUSTAINED A BROKEN KNEE CAP AND MY PASSENGER RECEIVED DEEP BRUISING TO HER UPPER TORSO AND SHOULDER AND DEEP BRUISE AND TISSUE TRAUMA TO HER KNEE. *JS

NHTSA ODI #10452283

130,000 miles · May 10, 2007
Air BagsSeat BeltsCrashInjury

THIS VEHICLE WAS INVOLVED IN A SINGLE VEHICLE ACCIDENT HITTING A GAURDRAIL AND CONCRETE DIVIDER. THE 2002 GMC SIERRA1 1500 EXT. CAB TRUCK HAS BEEN TOTALED BY THE INSURANCE COMPANY. THERE WAS EXTENSIVE DAMAGE TO THE FRONT END, HOOD, SIDE PANEL, BED, AND BUMPER, DRIVER SIDE TIRE, ETC. THE AIR BAG FAILED TO DEPLOY. IT ALSO APPEARED…

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THIS VEHICLE WAS INVOLVED IN A SINGLE VEHICLE ACCIDENT HITTING A GAURDRAIL AND CONCRETE DIVIDER. THE 2002 GMC SIERRA1 1500 EXT. CAB TRUCK HAS BEEN TOTALED BY THE INSURANCE COMPANY. THERE WAS EXTENSIVE DAMAGE TO THE FRONT END, HOOD, SIDE PANEL, BED, AND BUMPER, DRIVER SIDE TIRE, ETC. THE AIR BAG FAILED TO DEPLOY. IT ALSO APPEARED THE SEAT BELT JAMMED UPON IMPACT AS OPPOSED TO LOCKING AS IT IS SUPPOSED TO. EVEN THOUGH THE INJURIES WERE NOT SEVERE, SHE HIT HER HEAD ON THE STEERING WHEEL, AND HAD SUSTAINED PROBLEMS FROM THE EXCESSIVE IMPACT AMONG OTHER THINGS. SOMEONE SHOULD CHECK INTO WHY THE AIR BAG DID NOT DEPLOY AS WELL AS THE SEAT BELT.*AK

NHTSA ODI #10190370

Official recalls

1

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.

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.