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2001 GMC Yukon

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2001 GMC Yukon do not stand out strongly from the model-year median of 103.

About this comparison →

When problems were reported

Mileage at the reported incident

108 reports with mileage · 89 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 57 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes. Review the 23 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 18 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

23 crash reports0 fire reports11 injury reports

What owners actually said

197 reports
80,000 miles · Jul 11, 2006
Service Brakes, Hydraulic

I HAVE A 2001 GMC YUKON SLT, AND I HAVE HAD AN ABS ISSUE. I HEARD A CONSTANT RUNNING SOUND, EVEN WHEN THE VEHICLE IS NOT RUNNING. NARROWED IT DOWN TO THE ABS, AND HAD TO PULL THE FUSE TO STOP IT. NOW MY BRAKE & ABS LIGHTS ARE CONSTANTLY ILLUMINATED. THE DEALERS WILL NOT FIX IT, JUST REPLACE THEM. WHICH IS AROUND A GRAND TO DO. S…

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I HAVE A 2001 GMC YUKON SLT, AND I HAVE HAD AN ABS ISSUE. I HEARD A CONSTANT RUNNING SOUND, EVEN WHEN THE VEHICLE IS NOT RUNNING. NARROWED IT DOWN TO THE ABS, AND HAD TO PULL THE FUSE TO STOP IT. NOW MY BRAKE & ABS LIGHTS ARE CONSTANTLY ILLUMINATED. THE DEALERS WILL NOT FIX IT, JUST REPLACE THEM. WHICH IS AROUND A GRAND TO DO. SINCE THERE IS NO RECALL OUTSIDE THE "SALT BELT" STATES THEY WON'T HELP US. I'VE FOUND SOMEONE IN THE AREA WITH THE SAME PROBLEM. I RESEARCH IT ONLINE, AND SEE IT APPEARS TO BE AN COMMON SAFETY PROBLEM. THERE IS A RECALL OUT, BUT DOES NOT APPLY HERE IN FORT WALTON BEACH, FLORIDA. IN WHICH WERE ARE ON THE COAST AN SUBJECT TO SALT WATERS OF THE GULF COAST. I'VE NOTICED IT ON NHTSA CAMPAIGN ID # 05V379000. IT AFFECTS "SALT BELT" STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MARYLAND, MASSACHUSETTS, MAINE, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODA ISLAND, VERMONT, WEST VIRGINIA, WISCONSIN AND THE DISTRICT OF COLUMBIA ONLY.... PLEASE EXTEND RECALL AREA FOR OTHER LOCATIONS THAT HAVE THE SAME PROBLEM. MAYBE COASTAL AREAS, ETC. *NM

NHTSA ODI #10162090

Mileage unknown · Jun 26, 2006
Parking Brake

UPON MOVING TO HOUSTON, I HAD AN INSPECTION PERFORMED ON MY 2001 GMC YUKON. IT WAS FOUND THAT THE PARKING BRAKE HAD BECOME ENGAGED, EVEN THOUGH I DO NOT EVEN USE IT, AND DESTROYED MY REAR LEFT ROTOR, BRAKE PADS, AND EMERGENCY BRAKE PADS. IN ADDITION TO REPLACING THE ROTOR AND ALL BRAKE PADS ON THE REAR LEFT, I ALSO HAD TO HAVE…

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UPON MOVING TO HOUSTON, I HAD AN INSPECTION PERFORMED ON MY 2001 GMC YUKON. IT WAS FOUND THAT THE PARKING BRAKE HAD BECOME ENGAGED, EVEN THOUGH I DO NOT EVEN USE IT, AND DESTROYED MY REAR LEFT ROTOR, BRAKE PADS, AND EMERGENCY BRAKE PADS. IN ADDITION TO REPLACING THE ROTOR AND ALL BRAKE PADS ON THE REAR LEFT, I ALSO HAD TO HAVE THE BRAKE PADS ON THE RIGHT REAR REPLACED AS WELL. I HAVE BEEN DRIVING FOR AN UNKNOWN AMOUNT OF TIME WITH NO REAR BRAKE PADS OR EMERGENCY BRAKE. IN OTHER WORDS, HAD I PARKED MY CAR ON AN INCLINE AND USED THE PARKING BRAKE, IT WOULD NOT HOLD MY CAR. I ALSO HAD NO REAR BRAKES IF MY FRONT BRAKES HAD FAILED. I HAVE READ FORUMS ONLINE AND HAVE DISCOVERED THIS TO BE A PROBLEM WITH SEVERAL OTHER 2001 YUKON OWNERS. I BOUGHT THE CAR NEW IN 2001 AND HAVE HAD NO NEED FOR MY PARKING BRAKE. THE TOTAL DAMAGES WERE OVER $500 AND THERE IS NO GUARANTEE THIS WILL NOT HAPPEN AGAIN AS THERE IS NO INDICATION WHEN AND IF THE PARKING BRAKE ACTIVATES ITSELF. THE INDICATOR LIGHT DOES NOT COME ON AND THE PARKING BRAKE IS FULLY DISENGAGED. *JB

NHTSA ODI #10160734

103,686 miles · Jun 16, 2006
Seat Belts

DT*: THE CONTACT STATED THE SEATBELT FOR THE MIDDLE ROW PASSENGER SEAT WOULD NOT RETRACT. THE DEALERSHIP DETERMINED THE RETRACTOR WAS BROKEN AND THE SEATBELT NEEDED TO BE REPLACED. THE MANUFACTURER HAS BEEN ALERTED.

NHTSA ODI #10160031

25,000 miles · Apr 26, 2006
Parking Brake

PARKING BRAKE WILL NOT HOLD. VEHICLE WILL ROLL BACK WITH THE BRAKE FULLY APPLIED. VEHICLE HAS 35000 MILES. BRAKE HAS BEEN USED ONLY ABOUT 10 TIMES OVER THE LIFE OF THE VEHICLE. DEALER STATES THE BRAKE CANNOT BE ADJUSTED. THIS IS A SERIOUS DEFECT. *JB

NHTSA ODI #10156135

121,300 miles · Apr 20, 2006
Service Brakes, Hydraulic

APPLIED BRAKES ON SLIGHT ICEY DRIVEWAY, EBCM WENT OUT FOR GOOD. WHEEL SPEED SENSOR RECALL WAS JUST REPAIRED JUST BEFORE THIS HAPPENED. $1250 TO REPAIR. *NM

NHTSA ODI #10155797

67,000 miles · Apr 5, 2006
Service Brakes, Hydraulic

FAILURE OF ABS CONTROL MODULE. FAILURE LEADS TO CONTINUOUS OPERATION OF ACTUATOR EVEN WHEN THE VEHICLE IS OFF. FLOOR PAN HEATS UP. TRACTION CONTROL AND ABS SYSTEM IS INOPERABLE. BRAKING IS AFFECTED. MULTIPLE SIMILAR FAILURES ARE NOTED ON WEB SEARCHES AND BLOGS FOR A RANGE OF YUKON MODEL YEARS, INCLUDING MULTIPLE FAILURES ON THE …

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FAILURE OF ABS CONTROL MODULE. FAILURE LEADS TO CONTINUOUS OPERATION OF ACTUATOR EVEN WHEN THE VEHICLE IS OFF. FLOOR PAN HEATS UP. TRACTION CONTROL AND ABS SYSTEM IS INOPERABLE. BRAKING IS AFFECTED. MULTIPLE SIMILAR FAILURES ARE NOTED ON WEB SEARCHES AND BLOGS FOR A RANGE OF YUKON MODEL YEARS, INCLUDING MULTIPLE FAILURES ON THE SAME VEHICLE. REPLACEMENT COST ABOUT $1080. *NM

NHTSA ODI #10154574

82,000 miles · Mar 20, 2006
Steering

DT*: THE CONTACT STATED WHILE TURNING SHARPLY AT LOW SPEEDS THE STEERING WHEEL MADE A POPPING NOISE. THE DEALER RECOMMENDED GREASING THE STEERING COLUMN, BUT INFORMED THE CONTACT THIS WOULD NOT CORRECT THE PROBLEM PERMANENTLY. THEREFORE, THE DEALER WAS UNABLE TO OFFER ANY PERMANENT SOLUTION. *AK

NHTSA ODI #10153170

Mileage unknown · Mar 20, 2006
Engine And Engine CoolingExterior LightingFuel System, Gasoline

2001 YUKON TRANSMISSION SEAL FAILED BECAUSE OF ROUGH SHIFTING, SERPENTINE DRIVE BELT SQUEAKS. VEHICLE LEAKED FUEL CONSUMER HAD TO GET A RIDE HOME WHILE FIRE DEPT CLEANED UP SPILL. *TS A SEAL FAILED AND COOLANT LEAKED INTO THE TRANSMISSION AND DESTROYED IT. THE RADIATOR SEAL FAILED. THE HEAD LIGHT LENS WAS LOOSE. *JB

NHTSA ODI #10150853

112,900 miles · Feb 23, 2006
Service Brakes, Hydraulic

2001 GMC YUKON EBCM FAILURE. THIS HAS OCCURRED TWICE IN THREE YEARS. THE FIRST OCCURRENCE WAS JUST OVER THE MANUFACTURERS WARRANTY PERIOD AND GMC PAID FOR THE PART AND I PAID FOR THE LABOR ONLY AFTER A MULTITUDE OF COMPLAINTS TO GMC. THE MODULE HAS FAILED AGAIN. THIS IS A SERIOUS FLAW AND NEEDS TO BE ADDRESSED AND THE DEALER/…

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2001 GMC YUKON EBCM FAILURE. THIS HAS OCCURRED TWICE IN THREE YEARS. THE FIRST OCCURRENCE WAS JUST OVER THE MANUFACTURERS WARRANTY PERIOD AND GMC PAID FOR THE PART AND I PAID FOR THE LABOR ONLY AFTER A MULTITUDE OF COMPLAINTS TO GMC. THE MODULE HAS FAILED AGAIN. THIS IS A SERIOUS FLAW AND NEEDS TO BE ADDRESSED AND THE DEALER/MANUFACTURER IS CHOOSING TO PUT THEIR CUSTOMERS AT RISK AND NOT ADDRESSING THE PROBLEM. *NM

NHTSA ODI #10151069

19,100 miles · Jan 23, 2006
Service Brakes, Hydraulic

DT*: THE CONTACT STATED THE ABS ACTIVATES AT LOW SPEEDS AND THERE IS AN INCREASED STOPPING DISTANCE. THERE IS A RECALL, NHTSA #05V379000 CONCERNING THE ANTILOCK BRAKES. THE VEHICLE IS EXPERIENCING THE SAME PROBLEMS AS INDICATED IN THE RECALL, BUT IS NOT INCLUDED IN THE RECALL DUE TO THE VIN.

NHTSA ODI #10148408

Official recalls

6

07V521000 · Engine And Engine Cooling

Nov 7, 2007

ON CERTAIN PICKUP TRUCKS EQUIPPED WITH AN 8.1L V8 ENGINE, THE CRANKSHAFT POSITION CAN OPERATE INTERMITTENTLY OR FAIL COMPLETELY. IF THE SENSOR OPERATES INTERMITTENTLY, THE SES LIGHT MAY ILLUMINATE AND THE VEHICLE MAY RUN ROUGH. THE ENGINE MAY STALL, AND IF SO, MAY RE-START IMMEDIATELY OR AFTER A COOL DOWN PERIOD.

Consequence & remedy

Consequence: IF THE SENSOR BECOMES COMPLETELY INOPERATIVE, THE ENGINE WILL QUIT RUNNING AND WILL NOT RE-START. EITHER OF THESE FAILURES CAN INCREASE THE RISK OF A CRASH.

Remedy: DEALERS WILL REPLACE THE CRANKSHAFT POSITION SENSOR FREE OF CHARGE. THE RECALL BEGAN ON DECEMBER 18, 2007. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438 AND GMC AT 1-866-996-9463.

05V379000 · Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip

Aug 29, 2005

CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES MAY EXPERIENCE UNWANTED ANTILOCK BRAKE SYSTEM (ABS) ACTIVATION. THIS CONDITION IS MORE LIKELY TO OCCUR IN ENVIRONMENTALLY CORROSIVE AREAS. THIS RECALL WILL BE LAUNCHED IN THE "SALT BELT" STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MARYLAND, MASSACHUSETTS, MAINE, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, WISCONSIN AND THE DISTRICT OF COLUMBIA ONLY.

Consequence & remedy

Consequence: THIS CAN CAUSE INCREASED STOPPING DISTANCES DURING LOW-SPEED BRAKE APPLICATIONS, WHICH COULD RESULT IN A CRASH.

Remedy: DEALERS ARE TO REMOVE THE WHEEL SPEED SENSOR AND THOROUGHLY CLEAN THE WHEEL SPEED SENSOR MOUNTING SURFACE ON THE BEARING, APPLY RUST INHIBITOR TO THE CLEANED SURFACE, GREASE THE MOUNTING SURFACE, REINSTALL THE WHEEL SPEED SENSOR, AND CHECK THE PEAK-TO-PEAK OUTPUT VOLTAGE TO ENSURE THE WHEEL SPEED SIGNAL IS WITHIN SPECIFICATIONS. THE RECALL BEGAN SEPTEMBER 22, 2005. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438 OR GMC AT 1-866-996-9463.

03V094000 · Structure

Mar 7, 2003

CERTAIN PICKUP TRUCK, VAN, AND MINI VAN CONVERSIONS EQUIPPED WITH SOUTHERN COMFORT BUILT RUNNING BOARDS THAT CONTAIN CERTAIN COURTESY LIGHTS MANUFACTURED BY AMERICAN TECHNOLOGY COMPONENTS, INC. THESE UNITS CONTAIN A COURTESY LIGHT OR LIGHTS THAT MIGHT OVERHEAT WHEN THE WIRE HARNESS IS EXPOSED TO EXCESSIVE MOISTURE AND ROAD SALT.

Consequence & remedy

Consequence: THIS OVERHEATING CONDITION CAN CAUSE THE RUNNING BOARD TO MELT OR CAUSE A FIRE.

Remedy: DEALERS WILL REPLACE THE WIRING HARNESS ON THESE RUNNING BOARDS. OWNER NOTIFICATION BEGAN MARCH 7, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT SOUTHERN COMFORT AT 1-800-745-6096.

02V253000 · Seats:front Assembly:head Restraint

Sep 17, 2002

ON CERTAIN SPORT UTILITY VEHICLES EQUIPPED WITH REARWARD FOLDING HEAD RESTRAINTS ON THE SECOND ROW SEATS, TWO POTENTIAL PINCH POINTS EXIST ON EACH OF THE FOLDING HEAD RESTRAINTS WHEN THE RESTRAINTS ARE FOLDED REARWARD AS THE SEATBACK IS FOLDED DOWN.

Consequence & remedy

Consequence: IF A PERSON WERE TO INSERT THEIR FINGER(S) INTO THE PINCH POINT WHEN THE HEAD RESTRAINT FOLDS, IT COULD TRAP AND PINCH THE FINGER(S) CAUSING INJURY.

Remedy: DEALERS WILL INSTALL PROTECTIVE COVERS OVER THE PINCH POINTS. OWNER NOTIFICATION BEGAN NOVEMBER 8, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT CHEVROLET AT 1-800-222-1020, GMC AT 1-800-462-8782, OR CADILLAC AT 1-800-458-8006.

01V159000 · Seat Belts:front:retractor

May 17, 2001

VEHICLE DESCRIPTION: PICKUP AND UTILITY TRUCKS. SOME OF THESE VEHICLES HAVE AN INTERNAL COMPONENT IN THE OUTBOARD SEAT BELT RETRACTORS FOR THE 2ND AND 3RD ROW OF SEATS THAT COULD BE CRACKED. WITH REPEATED ACTUATION OF THE LOCKING MECHANISM, THE CRACK COULD SPREAD TO THE POINT SUCH THAT THE SEAT BELT WOULD NO LONGER LOCK.

Consequence & remedy

Consequence: IN A CRASH, INCREASED OCCUPANT INJURY COULD RESULT FROM THE NO-LOCK CONDITION.

Remedy: DEALERS WILL INSPECT THE OUTBOARD SEAT BELTS FOR SPECIFIC LOT NUMBERS AND REPLACE THE BELTS IF NECESSARY. GM IS ENCLOSING AN INSPECTION PROCEDURE FOR THE OWNERS TO USE OR THEY CAN HAVE THEIR DEALERS DO THE INSPECTIONS. OWNER NOTIFICATION BEGAN JULY 2, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT CHEVROLET AT 1-800-222-1020 OR GMC AT 1-800-462-8782.

00V343000 · Structure:body

Oct 25, 2000

VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS AND SPORT UTILITY VEHICLES. SOME OF THESE VEHICLES HAVE LOOSE OR MISSING REAR WHEELHOUSE PLUGS. UNDER CERTAIN VEHICLE OPERATING CONDITIONS, EXHAUST GASES CAN FLOW FORWARD AND ACCUMULATE IN THE REAR WHEELHOUSE.

Consequence & remedy

Consequence: THESE GASES COULD FLOW INTO THE PASSENGER COMPARTMENT IF THE PLUG IS MISSING OR LOOSE AND COULD CAUSE POSSIBLE ILLNESS, UNCONSCIOUSNESS, OR DEATH.

Remedy: DEALERS WILL INSPECT THE VEHICLE FOR LOOSE OR MISSING WHEELHOUSE PLUGS AND INSTALL NEW PLUGS IF NECESSARY.

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

5

PE10010 · Brake Line Corrosion Failure

Opened Mar 30, 2010 · Closed Jan 5, 2011

Status: closed (inferred from source dates) · Service Brakes, Hydraulic; Service Brakes, Hydraulic:power Assist:hydraulic:hoses, Lines/piping, And Fittings

The Office of Defects Investigation (ODI) received Defect Petition DP10-003 on March 2, 2010, requesting the investigation of model year (MY) 2003 Chevrolet Silverado 2500HD 4WD pickup trucks for corrosion failures of the vehicle brake lines.DP10-003 was granted and on March 30, 2010, Preliminary Evaluation PE10-010 was opened on more than six million model year 1999 through 2003 light trucks and sport utility vehicles manufactured and sold by General Motors Corporation (GM).On July 2, 2010, ODI received GM's response to an information request, which included GM's assessment of the frequency and safety consequences of the alleged defect. GM stated that:(1) the brake system of the subject vehicles is split front/rear and should a brake pipe suddenly fail for any reason, the affected vehicle would be capable of stopping with the pressure supplied by the remaining circuit; (2) the subject vehicles were designed to meet the hydraulic circuit partial failure requirements of Federal Motor Vehicle Safety Standards 105 and 135, Light Vehicle Brake Systems; and (3) should a brake fluid leak occur for any reason, the brake system malfunction indicator lamp (MIL) would illuminate and warn the driver before the brake fluid level was low enough to cause a loss of line pressure.ODI's and GM's analysis indicates that 85 percent of the complaints occurred on vehicles used primarily in States that use salt on the roads during Winter months (Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin).Overall the complaint rates per 100,000 vehicles for Salt Belt States is 43.0 and Non-Salt Belt is 3.0.In approximately 25 percent of the complaints the brake pipe failure occurred suddenly, with no warning (i.e., no MIL, Brake Fluid Loss Warning), and resulted in extended stopping distances.In 30 of these the increase in stopping distance that resulted was a factor in the crash and in 10 others the vehicle was intentionally steered off the road or into another lane of travel in order to avoid a crash.This investigation has been upgraded to an Engineering Analysis (EA11-001) for subject vehicles sold or currently registered in Salt Belt States to further assess the scope, frequency and safety risks associated with sudden failures of corroded brake pipes that can result in decreased brake effectiveness. ODI will continue to gather information on subject vehicles outside the Salt Belt as well.

Additional source detail variants (2)

Service Brakes, Hydraulic

The Office of Defects Investigation (ODI) received Defect Petition DP10-003 on March 2, 2010, requesting the investigation of model year (MY) 2003 Chevrolet Silverado 2500HD 4WD pickup trucks for corrosion failures of the vehicle brake lines.DP10-003 was granted and on March 30, 2010, Preliminary Evaluation PE10-010 was opened on more than six million model year 1999 through 2003 light trucks and sport utility vehicles manufactured and sold by General Motors Corporation (GM).On July 2, 2010, ODI received GM's response to an information request, which included GM's assessment of the frequency and safety consequences of the alleged defect. GM stated that:(1) the brake system of the subject vehicles is split front/rear and should a brake pipe suddenly fail for any reason, the affected vehicle would be capable of stopping with the pressure supplied by the remaining circuit; (2) the subject vehicles were designed to meet the hydraulic circuit partial failure requirements of Federal Motor Vehicle Safety Standards 105 and 135, Light Vehicle Brake Systems; and (3) should a brake fluid leak occur for any reason, the brake system malfunction indicator lamp (MIL) would illuminate and warn the driver before the brake fluid level was low enough to cause a loss of line pressure.ODI's and GM's analysis indicates that 85 percent of the complaints occurred on vehicles used primarily in States that use salt on the roads during Winter months (Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin).Overall the complaint rates per 100,000 vehicles for Salt Belt States is 43.0 and Non-Salt Belt is 3.0.In approximately 25 percent of the complaints the brake pipe failure occurred suddenly, with no warning (i.e., no MIL, Brake Fluid Loss Warning), and resulted in extended stopping distances.In 30 of these the increase in stopping distance that resulted was a factor in the crash and in 10 others the vehicle was intentionally steered off the road or into another lane of travel in order to avoid a crash.This investigation has been upgraded to an Engineering Analysis (EA11-001) for subject vehicles sold or currently registered in Salt Belt States to further assess the scope, frequency and safety risks associated with sudden failures of corroded brake pipes that can result in decreased brake effectiveness. ODI will continue to gather information on subject vehicles outside the Salt Belt as well.

Service Brakes, Hydraulic:power Assist:hydraulic:hoses, Lines/piping, And Fittings

The Office of Defects Investigation (ODI) received Defect Petition DP10-003 on March 2, 2010, requesting the investigation of model year (MY) 2003 Chevrolet Silverado 2500HD 4WD pickup trucks for corrosion failures of the vehicle brake lines.DP10-003 was granted and on March 30, 2010, Preliminary Evaluation PE10-010 was opened on more than six million model year 1999 through 2003 light trucks and sport utility vehicles manufactured and sold by General Motors Corporation (GM).On July 2, 2010, ODI received GM's response to an information request, which included GM's assessment of the frequency and safety consequences of the alleged defect. GM stated that:(1) the brake system of the subject vehicles is split front/rear and should a brake pipe suddenly fail for any reason, the affected vehicle would be capable of stopping with the pressure supplied by the remaining circuit; (2) the subject vehicles were designed to meet the hydraulic circuit partial failure requirements of Federal Motor Vehicle Safety Standards 105 and 135, Light Vehicle Brake Systems; and (3) should a brake fluid leak occur for any reason, the brake system malfunction indicator lamp (MIL) would illuminate and warn the driver before the brake fluid level was low enough to cause a loss of line pressure.ODI's and GM's analysis indicates that 85 percent of the complaints occurred on vehicles used primarily in States that use salt on the roads during Winter months (Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin).Overall the complaint rates per 100,000 vehicles for Salt Belt States is 43.0 and Non-Salt Belt is 3.0.In approximately 25 percent of the complaints the brake pipe failure occurred suddenly, with no warning (i.e., no MIL, Brake Fluid Loss Warning), and resulted in extended stopping distances.In 30 of these the increase in stopping distance that resulted was a factor in the crash and in 10 others the vehicle was intentionally steered off the road or into another lane of travel in order to avoid a crash.This investigation has been upgraded to an Engineering Analysis (EA11-001) for subject vehicles sold or currently registered in Salt Belt States to further assess the scope, frequency and safety risks associated with sudden failures of corroded brake pipes that can result in decreased brake effectiveness. ODI will continue to gather information on subject vehicles outside the Salt Belt as well.

DP05009 · Parking Brake Failure

Opened Dec 20, 2005 · Closed May 31, 2006

Status: closed (inferred from source dates) · Parking Brake; Parking Brake:conventional; Parking Brake:conventional:mechanical

ODI'S REVIEW OF COMPLAINT DATA RECEIVED SINCE THE CLOSE OF EA04-011 REVEALED NO INDICATION THAT THE INVESTIGATION SHOULD BE RE-OPENED.MORE DETAILS CAN BE FOUND IN THE FEDERAL REGISTER NOTICE ENCLOSED IN THE DP05-009 PUBLIC FILE.ODI RESERVES THE RIGHT TO REOPEN THE INVESTIGATION IN THE FUTURE SHOULD CONDITIONS WARRANT.

Additional source detail variants (3)

Parking Brake:conventional

ODI'S REVIEW OF COMPLAINT DATA RECEIVED SINCE THE CLOSE OF EA04-011 REVEALED NO INDICATION THAT THE INVESTIGATION SHOULD BE RE-OPENED.MORE DETAILS CAN BE FOUND IN THE FEDERAL REGISTER NOTICE ENCLOSED IN THE DP05-009 PUBLIC FILE.ODI RESERVES THE RIGHT TO REOPEN THE INVESTIGATION IN THE FUTURE SHOULD CONDITIONS WARRANT.

Parking Brake:conventional:mechanical

ODI'S REVIEW OF COMPLAINT DATA RECEIVED SINCE THE CLOSE OF EA04-011 REVEALED NO INDICATION THAT THE INVESTIGATION SHOULD BE RE-OPENED.MORE DETAILS CAN BE FOUND IN THE FEDERAL REGISTER NOTICE ENCLOSED IN THE DP05-009 PUBLIC FILE.ODI RESERVES THE RIGHT TO REOPEN THE INVESTIGATION IN THE FUTURE SHOULD CONDITIONS WARRANT.

Parking Brake

ODI'S REVIEW OF COMPLAINT DATA RECEIVED SINCE THE CLOSE OF EA04-011 REVEALED NO INDICATION THAT THE INVESTIGATION SHOULD BE RE-OPENED.MORE DETAILS CAN BE FOUND IN THE FEDERAL REGISTER NOTICE ENCLOSED IN THE DP05-009 PUBLIC FILE.ODI RESERVES THE RIGHT TO REOPEN THE INVESTIGATION IN THE FUTURE SHOULD CONDITIONS WARRANT.

PE05020 · Unwanted LOW-SPEED Abs Activation

Opened Apr 28, 2005 · Closed Sep 13, 2005

Status: closed (inferred from source dates) · Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip; Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module

IN A LETTER DATED AUGUST 29, 2005, GM NOTIFIED ODI THAT IT WAS RECALLING CERTAIN MODEL YEAR 1999 THROUGH 2002 C/K PICKUP TRUCKS AND SPORT UTILITY VEHICLES TO CORRECT A PROBLEM WITH ANTI-LOCK BRAKE SYSTEM (ABS) WHEEL SPEED SENSOR CORROSION THAT MAY RESULT IN UNWANTED ABS ACTIVATION AND EXTENDED STOPPING DISTANCES DURING LOW-SPEED BRAKING (RECALL 05V-379).GM'S RECALL COVERS APPROXIMATELY 804,000 VEHICLES CURRENTLY REGISTERED IN THE FOLLOWING 14 SALT-BELT STATES:CONNECTICUT, ILLINOIS, INDIANA, MASSACHUSETTS, MAINE, MICHIGAN, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, AND WEST VIRGINIA.THE RECALL PROCEDURE WILL INVOLVE REMOVING THE SENSOR, CLEANING THE MOUNTING SURFACE, APPLYING A RUST INHIBITOR (ZINC-X) TO THE SURFACE, AND REINSTALLING THE SENSOR.IF NECESSARY, THE SENSOR WILL BE REPLACED. THE POPULATION AND FAILURE REPORT DATA GIVEN IN THIS RESUME ARE FOR THE FULL REGION THAT HAS BEEN CONSIDERED BY ODI AS THE SALT-BELT.THAT INCLUDES DELAWARE, IOWA, MARYLAND, MINNESOTA, MISSOURI, WISCONSIN AND THE DISTRICT OF COLUMBIA IN ADDITION TO THE 14 STATES INCLUDED IN 05V-379.THE STATES COVERED BY GM'S RECALL HAVE THE HIGHEST INCIDENT RATES FOR THE SUBJECT CONDITION, ACCOUNTING FOR 91% OF THE INCIDENTS, BUT ONLY 24% OF SUBJECT VEHICLE SALES IN THE UNITED STATES.ODI'S ANALYSIS DETERMINED THAT 840 OF THE COMPLAINTS, 244 OF THE CRASHES, AND 16 OF THE INJURIES IDENTIFIED IN THIS INVESTIGATION OCCURRED IN THOSE STATES.THE RESULTING INCIDENT AND CRASH RATES ARE 96.2 AND 28.0 PER 100,000 VEHICLES RESPECTIVELY (NOTE:RATES ARE BASED ON VEHICLE SALES, NOT REGISTERED VEHICLES). THE CORRESPONDING NUMBERS IN THE EXCLUDED PORTIONS OF THE SALT-BELT ARE 399,000 VEHICLES, 81 INCIDENTS (20.3 PER 100,000 VEHICLES), 3 CRASHES, AND NO INJURIES.THE STATISTICS IN THE REMAINING 30 STATES ARE 2,406,000 VEHICLES, 168 INCIDENTS (7.0 PER 100,000 VEHICLES), 31 CRASHES, AND ONE INJURY.GM AND ODI ARE CONTINUING TO MONITOR THE PROBLEM EXPERIENCE IN STATES THAT ARE NOT INCLUDED IN THE RECALL.GM WILL PROVIDE ODI WITH UPDATED COMPLAINT, FIELD REPORT, AND WARRANTY DATA IN NOVEMBER 2005.ODI AND GM WILL REVIEW THAT DATA AND ASSESS THE APPROPRIATENESS OF THE CURRENT SCOPE OF THE RECALL AT THAT TIME.

Additional source detail variants (2)

Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module

IN A LETTER DATED AUGUST 29, 2005, GM NOTIFIED ODI THAT IT WAS RECALLING CERTAIN MODEL YEAR 1999 THROUGH 2002 C/K PICKUP TRUCKS AND SPORT UTILITY VEHICLES TO CORRECT A PROBLEM WITH ANTI-LOCK BRAKE SYSTEM (ABS) WHEEL SPEED SENSOR CORROSION THAT MAY RESULT IN UNWANTED ABS ACTIVATION AND EXTENDED STOPPING DISTANCES DURING LOW-SPEED BRAKING (RECALL 05V-379).GM'S RECALL COVERS APPROXIMATELY 804,000 VEHICLES CURRENTLY REGISTERED IN THE FOLLOWING 14 SALT-BELT STATES:CONNECTICUT, ILLINOIS, INDIANA, MASSACHUSETTS, MAINE, MICHIGAN, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, AND WEST VIRGINIA.THE RECALL PROCEDURE WILL INVOLVE REMOVING THE SENSOR, CLEANING THE MOUNTING SURFACE, APPLYING A RUST INHIBITOR (ZINC-X) TO THE SURFACE, AND REINSTALLING THE SENSOR.IF NECESSARY, THE SENSOR WILL BE REPLACED. THE POPULATION AND FAILURE REPORT DATA GIVEN IN THIS RESUME ARE FOR THE FULL REGION THAT HAS BEEN CONSIDERED BY ODI AS THE SALT-BELT.THAT INCLUDES DELAWARE, IOWA, MARYLAND, MINNESOTA, MISSOURI, WISCONSIN AND THE DISTRICT OF COLUMBIA IN ADDITION TO THE 14 STATES INCLUDED IN 05V-379.THE STATES COVERED BY GM'S RECALL HAVE THE HIGHEST INCIDENT RATES FOR THE SUBJECT CONDITION, ACCOUNTING FOR 91% OF THE INCIDENTS, BUT ONLY 24% OF SUBJECT VEHICLE SALES IN THE UNITED STATES.ODI'S ANALYSIS DETERMINED THAT 840 OF THE COMPLAINTS, 244 OF THE CRASHES, AND 16 OF THE INJURIES IDENTIFIED IN THIS INVESTIGATION OCCURRED IN THOSE STATES.THE RESULTING INCIDENT AND CRASH RATES ARE 96.2 AND 28.0 PER 100,000 VEHICLES RESPECTIVELY (NOTE:RATES ARE BASED ON VEHICLE SALES, NOT REGISTERED VEHICLES). THE CORRESPONDING NUMBERS IN THE EXCLUDED PORTIONS OF THE SALT-BELT ARE 399,000 VEHICLES, 81 INCIDENTS (20.3 PER 100,000 VEHICLES), 3 CRASHES, AND NO INJURIES.THE STATISTICS IN THE REMAINING 30 STATES ARE 2,406,000 VEHICLES, 168 INCIDENTS (7.0 PER 100,000 VEHICLES), 31 CRASHES, AND ONE INJURY.GM AND ODI ARE CONTINUING TO MONITOR THE PROBLEM EXPERIENCE IN STATES THAT ARE NOT INCLUDED IN THE RECALL.GM WILL PROVIDE ODI WITH UPDATED COMPLAINT, FIELD REPORT, AND WARRANTY DATA IN NOVEMBER 2005.ODI AND GM WILL REVIEW THAT DATA AND ASSESS THE APPROPRIATENESS OF THE CURRENT SCOPE OF THE RECALL AT THAT TIME.

Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip

IN A LETTER DATED AUGUST 29, 2005, GM NOTIFIED ODI THAT IT WAS RECALLING CERTAIN MODEL YEAR 1999 THROUGH 2002 C/K PICKUP TRUCKS AND SPORT UTILITY VEHICLES TO CORRECT A PROBLEM WITH ANTI-LOCK BRAKE SYSTEM (ABS) WHEEL SPEED SENSOR CORROSION THAT MAY RESULT IN UNWANTED ABS ACTIVATION AND EXTENDED STOPPING DISTANCES DURING LOW-SPEED BRAKING (RECALL 05V-379).GM'S RECALL COVERS APPROXIMATELY 804,000 VEHICLES CURRENTLY REGISTERED IN THE FOLLOWING 14 SALT-BELT STATES:CONNECTICUT, ILLINOIS, INDIANA, MASSACHUSETTS, MAINE, MICHIGAN, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, AND WEST VIRGINIA.THE RECALL PROCEDURE WILL INVOLVE REMOVING THE SENSOR, CLEANING THE MOUNTING SURFACE, APPLYING A RUST INHIBITOR (ZINC-X) TO THE SURFACE, AND REINSTALLING THE SENSOR.IF NECESSARY, THE SENSOR WILL BE REPLACED. THE POPULATION AND FAILURE REPORT DATA GIVEN IN THIS RESUME ARE FOR THE FULL REGION THAT HAS BEEN CONSIDERED BY ODI AS THE SALT-BELT.THAT INCLUDES DELAWARE, IOWA, MARYLAND, MINNESOTA, MISSOURI, WISCONSIN AND THE DISTRICT OF COLUMBIA IN ADDITION TO THE 14 STATES INCLUDED IN 05V-379.THE STATES COVERED BY GM'S RECALL HAVE THE HIGHEST INCIDENT RATES FOR THE SUBJECT CONDITION, ACCOUNTING FOR 91% OF THE INCIDENTS, BUT ONLY 24% OF SUBJECT VEHICLE SALES IN THE UNITED STATES.ODI'S ANALYSIS DETERMINED THAT 840 OF THE COMPLAINTS, 244 OF THE CRASHES, AND 16 OF THE INJURIES IDENTIFIED IN THIS INVESTIGATION OCCURRED IN THOSE STATES.THE RESULTING INCIDENT AND CRASH RATES ARE 96.2 AND 28.0 PER 100,000 VEHICLES RESPECTIVELY (NOTE:RATES ARE BASED ON VEHICLE SALES, NOT REGISTERED VEHICLES). THE CORRESPONDING NUMBERS IN THE EXCLUDED PORTIONS OF THE SALT-BELT ARE 399,000 VEHICLES, 81 INCIDENTS (20.3 PER 100,000 VEHICLES), 3 CRASHES, AND NO INJURIES.THE STATISTICS IN THE REMAINING 30 STATES ARE 2,406,000 VEHICLES, 168 INCIDENTS (7.0 PER 100,000 VEHICLES), 31 CRASHES, AND ONE INJURY.GM AND ODI ARE CONTINUING TO MONITOR THE PROBLEM EXPERIENCE IN STATES THAT ARE NOT INCLUDED IN THE RECALL.GM WILL PROVIDE ODI WITH UPDATED COMPLAINT, FIELD REPORT, AND WARRANTY DATA IN NOVEMBER 2005.ODI AND GM WILL REVIEW THAT DATA AND ASSESS THE APPROPRIATENESS OF THE CURRENT SCOPE OF THE RECALL AT THAT TIME.

PE02067 · Alleged Failure Of 2ND Row Seatbelt Alr

Opened Sep 25, 2002 · Closed Feb 11, 2003

Status: closed (inferred from source dates) · Seat Belts; Seat Belts:rear/other

THE AUTOMATIC LOCKING RETRACTOR (ALR) IS A FEATURE INCORPORATED IN THE SUBJECT VEHICLE FOR LOCKING THE WEBBING TO PROPERLY SECURE A CHILD SAFETY SEAT INTO A VEHICLE.THIS PE WAS OPENED BASED ON A GM TECHNICAL SERVICE BULLETIN STATING THAT WITH CERTAIN CHILD SAFETY SEATS THE WEBBING MAY NOT REMAIN LOCKED.THERE ARE NO COMPLAINTS IN THE ODI DATABASE AND ONLY TWO COMPLAINTS TO GM.GM'S INSTRUCTIONS STATE FOR THE FINAL STEP IN USING THE WEBBING LOCK FEATURE TO PUSH AND PULL THE CHILD RESTRAINT TO BE SURE IT IS SECURE. IF THE ALR IS NOT LOCKED, THE USER WOULD BE FULLY AWARE OF THIS CONDITION PRIOR TO COMPLETING PROPER INSTALLATION OF THE CHILD SAFETY SEAT IN THIS VEHICLE.THIS INVESTIGATION DID NOT UNCOVER ANY COMPLAINTS OF THE ALR INADVERTENTLY UNLOCKING WHILE THE VEHICLE IS IN MOTION.THE EMERGENCY LOCKING RETRACTOR (ELR) FEATURE REMAINS AVAILABLE TO LOCK THE RETRACTOR IN A CRASH.A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.SEE ATTACHED SUMMARY FOR ADDITIONAL INFORMATION.

Additional source detail variants (2)

Seat Belts

THE AUTOMATIC LOCKING RETRACTOR (ALR) IS A FEATURE INCORPORATED IN THE SUBJECT VEHICLE FOR LOCKING THE WEBBING TO PROPERLY SECURE A CHILD SAFETY SEAT INTO A VEHICLE.THIS PE WAS OPENED BASED ON A GM TECHNICAL SERVICE BULLETIN STATING THAT WITH CERTAIN CHILD SAFETY SEATS THE WEBBING MAY NOT REMAIN LOCKED.THERE ARE NO COMPLAINTS IN THE ODI DATABASE AND ONLY TWO COMPLAINTS TO GM.GM'S INSTRUCTIONS STATE FOR THE FINAL STEP IN USING THE WEBBING LOCK FEATURE TO PUSH AND PULL THE CHILD RESTRAINT TO BE SURE IT IS SECURE. IF THE ALR IS NOT LOCKED, THE USER WOULD BE FULLY AWARE OF THIS CONDITION PRIOR TO COMPLETING PROPER INSTALLATION OF THE CHILD SAFETY SEAT IN THIS VEHICLE.THIS INVESTIGATION DID NOT UNCOVER ANY COMPLAINTS OF THE ALR INADVERTENTLY UNLOCKING WHILE THE VEHICLE IS IN MOTION.THE EMERGENCY LOCKING RETRACTOR (ELR) FEATURE REMAINS AVAILABLE TO LOCK THE RETRACTOR IN A CRASH.A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.SEE ATTACHED SUMMARY FOR ADDITIONAL INFORMATION.

Seat Belts:rear/other

THE AUTOMATIC LOCKING RETRACTOR (ALR) IS A FEATURE INCORPORATED IN THE SUBJECT VEHICLE FOR LOCKING THE WEBBING TO PROPERLY SECURE A CHILD SAFETY SEAT INTO A VEHICLE.THIS PE WAS OPENED BASED ON A GM TECHNICAL SERVICE BULLETIN STATING THAT WITH CERTAIN CHILD SAFETY SEATS THE WEBBING MAY NOT REMAIN LOCKED.THERE ARE NO COMPLAINTS IN THE ODI DATABASE AND ONLY TWO COMPLAINTS TO GM.GM'S INSTRUCTIONS STATE FOR THE FINAL STEP IN USING THE WEBBING LOCK FEATURE TO PUSH AND PULL THE CHILD RESTRAINT TO BE SURE IT IS SECURE. IF THE ALR IS NOT LOCKED, THE USER WOULD BE FULLY AWARE OF THIS CONDITION PRIOR TO COMPLETING PROPER INSTALLATION OF THE CHILD SAFETY SEAT IN THIS VEHICLE.THIS INVESTIGATION DID NOT UNCOVER ANY COMPLAINTS OF THE ALR INADVERTENTLY UNLOCKING WHILE THE VEHICLE IS IN MOTION.THE EMERGENCY LOCKING RETRACTOR (ELR) FEATURE REMAINS AVAILABLE TO LOCK THE RETRACTOR IN A CRASH.A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.SEE ATTACHED SUMMARY FOR ADDITIONAL INFORMATION.

EA02015 · Throttle Sticking Closed

Opened Aug 1, 2002 · Closed Jan 12, 2004

Status: closed (inferred from source dates) · Vehicle Speed Control:linkages

THIS INVESTIGATION INVOLVES THE GENERAL MOTORS CORPORATION (GM)THROTTLE BODY (TB) UTILIZED IN MODEL YEAR (MY) 1999-2002 SILVERADO, SIERRA, TAHOE, SUBURBAN, AVALANCHE AND YUKON (SUBJECT VEHICLE(S)) WITH 4.8L, 5.3L, AND 6.0L ENGINES. THE TB VALVE MAY INTERMITTENTLY STICK IN A CLOSED POSITION.IN SUCH A SITUATION, AN OPERATOR MAY APPLY ADDITIONAL ACCELERATOR PEDAL FORCE TO INCREASE ENGINE SPEED.THE APPLICATION OF ADDITIONAL ACCELERATOR PEDAL FORCE, TO OPEN A STUCK THROTTLE VALVE, MAY OPEN THE THROTTLE VALVE MORE THAN INTENDED AND, IN TURN, ACCELERATE THE ENGINE AND VEHICLE MORE THAN INTENDED AND REASONABLY EXPECTED BY THE DRIVER.ON AUGUST 1, 2002, THE OFFICE OF DEFECTS INVESTIGATION (ODI), OF THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION (NHTSA), OPENED THIS ENGINEERING ANALYSIS.THE INVESTIGATION REVEALED THAT TWO FACTORS MAY CAUSE THE DEFECT: 1) TB MANUFACTURING PROCESS PROBLEMS; AND 2) ACCUMULATION OF DEPOSITS (A PCV SYSTEM BY-PRODUCT) ON OR AROUND THE TB THROTTLE VALVE AND BORE.ODI CONCLUDES THAT THE TB PERFORMS IN A DEFECTIVE MANNER AFTER ANALYZING GM?S DATA SUBMISSIONS, AND TEST DATA COLLECTED BY THE VEHICLE RESEARCH AND TEST CENTER (VRTC).FIFTY-NINE CRASHES ARE ALLEGED TO HAVE OCCURRED AS A RESULT OF GM?S TB DEFECT.THE MAJORITY OF THE CRASHES INVOLVE A SINGLE VEHICLE, ENGAGING IN A CLOSE QUARTER VEHICLE MANEUVER (OR LOW SPEED), AND CAUSING ONLY MINOR PROPERTY DAMAGE.FOUR OUT OF THE FIFTY-NINE CRASHES INVOLVE INJURY, AND THOSE INJURIES WERE MINOR.ALTHOUGH GM?S TB IS DEFECTIVE, BASED ON THE EVIDENCE GATHERED, ODI HAS FOUND THAT THE ACCELERATOR PEDAL FORCE REQUIRED TO OPEN A STUCK THROTTLE VALVE IS NEGLIGIBLE, AND THE THROTTLE VALVE DOES NOT STICK IN THE OPEN POSITION.THEREFORE THIS ENGINEERING ANALYSIS (EA02-015) WILL BE CLOSED AT THIS TIME.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.FOR A DETAILED DISCUSSION OF THE TB COMPONENT AND TESTING, PLEASE SEE THE ATTACHED REPORT.