NHTSA owner reports · September 18, 2026 snapshot.
Steering complaints
10 reportsClear category filter115,000 miles · May 2, 2011
Steering
TL* THE CONTACT OWNS A 2000 CHEVROLET TAHOE. THE CONTACT WAS DRIVING IN A RESIDENTIAL DRIVEWAY APPROXIMATELY 5 MPH IN REVERSE WHEN THE STEERING WHEEL BECAME DIFFICULT TO TURN. THE VEHICLE WAS ABLE TO RESUME NORMAL OPERATION AFTER A FEW MINUTES. THE FAILURE RECURRED WHENEVER ATTEMPTING A TURN. THE VEHICLE WAS TAKEN TO AN INDEPEND…
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TL* THE CONTACT OWNS A 2000 CHEVROLET TAHOE. THE CONTACT WAS DRIVING IN A RESIDENTIAL DRIVEWAY APPROXIMATELY 5 MPH IN REVERSE WHEN THE STEERING WHEEL BECAME DIFFICULT TO TURN. THE VEHICLE WAS ABLE TO RESUME NORMAL OPERATION AFTER A FEW MINUTES. THE FAILURE RECURRED WHENEVER ATTEMPTING A TURN. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO ADVISED THAT THE POWER STEERING PUMP WOULD NEED TO BE REPLACED. THE POWER STEERING FLUID WAS DRAINED AND REPLACED BUT THE POWER STEERING PUMP WAS NOT REPLACED. THE APPROXIMATE FAILURE MILEAGE WAS 115,000. THE VIN WAS NOT AVAILABLE.
NHTSA ODI #10398653
80,000 miles · Apr 18, 2006
Steering
DT*: THE CONTACT STATED WHILE DRIVING 10 MPH THE STEERING WHEEL LOCKED COMPLETELY. THE VEHICLE WAS TOWED TO A LOCAL INDEPENDENT REPAIR SHOP, WHERE THE MECHANIC DISCOVERED THE STEERING BOX WOULD HAVE TO BE REPLACED. *AK
NHTSA ODI #10155564
Mileage unknown · May 25, 2004
Latches/locks/linkagesParking BrakeSteeringInjury
MY REAR WINDSHIELD COLLAPSED INTO PIECES WHEN I OPENED THE CARGO DOOR. THE SHATTERED GLASS FLEW EVERYWHERE AND RESULTED IN MINOR CUTS SCRAPES, AND NOT TO MENTION INCONTROLLABLE TEARS ON MY 6-YR OLD DAUGHTER AND MYSELF. THE SERVICE DEPT. EMPLOYEE STATED SEVERAL VEHICLES HAVE GONE FOR THE SAME REASON. MY PARKING BRAKE IS INOPERABL…
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MY REAR WINDSHIELD COLLAPSED INTO PIECES WHEN I OPENED THE CARGO DOOR. THE SHATTERED GLASS FLEW EVERYWHERE AND RESULTED IN MINOR CUTS SCRAPES, AND NOT TO MENTION INCONTROLLABLE TEARS ON MY 6-YR OLD DAUGHTER AND MYSELF. THE SERVICE DEPT. EMPLOYEE STATED SEVERAL VEHICLES HAVE GONE FOR THE SAME REASON. MY PARKING BRAKE IS INOPERABLE AND CAUSED MY VEHICLE NOT TO PASS INSPECTION. MY CO-WORKER HAD THE SAME PROBLEM JUST YESTERDAY AND IT NEEDED ALL OF THE CABLING REPLACED. WHEN MY VEHICLE WAS STILL UNDER EXTENDED WARRANTY WE LOST 3 TIRES AND THE MEN AT THE TIRE SHOP TOLD US THAT OUR TRUCK WAS MISSING THE PINIONS ON ALL FOUR WHEELS AND THE DANGERS IT CAUSED. I HAD THEM ADDED TO MY TRUCK AND HAVEN'T HAD A TIRE BUST SINCE. NEVER GOT COMPENSATION. I THINK THIS IS SOMETHING I SHOULD BE COMPENSATED FOR. ITS RIDICULOUS HOW THESE NEW VEHICLES ARE FALLING APART AND NO ONE IS ON OUR SIDE. *NM
NHTSA ODI #10073138
47,790 miles · Mar 26, 2004
Steering
VEHICLE IS A 2000 2WD CHEVROLET TAHOE. VEHICLE WAS BEING BACKED OUT OF A PARKING SPACE WHEN A LOUD BANG WAS HEARD. AFTER THIS BANG, THE STEERING WAS VERY LOOSE AND IT WAS HARD TO CONTROL THE VEHICLE. IMMEDIATE PROBLEM WAS DETERMINED TO BE 2 OF THE 3 BOLTS HOLDING STEERING BOX IN PLACE HAD SHEARED. CHEVY DEALER HAS NOT OFFERED A…
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VEHICLE IS A 2000 2WD CHEVROLET TAHOE. VEHICLE WAS BEING BACKED OUT OF A PARKING SPACE WHEN A LOUD BANG WAS HEARD. AFTER THIS BANG, THE STEERING WAS VERY LOOSE AND IT WAS HARD TO CONTROL THE VEHICLE. IMMEDIATE PROBLEM WAS DETERMINED TO BE 2 OF THE 3 BOLTS HOLDING STEERING BOX IN PLACE HAD SHEARED. CHEVY DEALER HAS NOT OFFERED A GOOD EXPLANATION FOR THIS FAILURE. HE KEEPS STATING THAT THE VEHICLE HIT SOMETHING TO CAUSE THE BOLTS TO SHEAR. VEHICLE IS IN EXCELLENT CONDITION AND WELL MAINTAINED. *AK
NHTSA ODI #10063937
10,200 miles · Feb 3, 2004
Steering
STEERING LOSES POWER WHEN TURNED MOSTLY TO THE LEFT. ALSO LOSES POWER IN LEFT CURVES AND HAS TO BE MANUALLY STEERED IN THE CURVE TO KEEP FROM CROSSING THE CENTER LINES ON THE HIGHWAY. THIS HAS BECOME A FREQUENT OCCURRENCE AS OF LATE.*AK
NHTSA ODI #10056483
35,000 miles · Jan 8, 2003
Steering
INTERMITTENTLY STEERING WHEEL WILL LOCK UP IN THE DIRECTION IT'S BEING TURNED, DRIVER HAS TO APPLY BRAKES TO UNLOCK IT. THE DEALERSHIP INDICATED THAT BECAUSE THE STEERING COLUMN HAS BUSHINGS INSTEAD OF BEARING, THE BUSHING WEAR OUT, WHICH CAUSE THE PROBLEM. PLEASE PROVIDE MORE DETAILS. TS
NHTSA ODI #10002305
Mileage unknown · Jul 5, 2002
Fuel System, GasolinePower TrainService Brakes, Hydraulic
I HAVE HAD THE PS PUMP, STEERING GEAR BOX, FUEL PUMP, 4WD SWITCH, AND ALL ROTORS/ BRAKES REPLACED. MY SUNROOF RUBBER SEAL HAD TO BE REPLACED. ALL MY WORK HAS BEEN DONE BY A GM DEALERSHIP FROM NORTH CAROLINA, MO & WA. MY VEHICLE HAS NEVER BEEN OFF ROAD, IT IS MORE FOR LOOKS. BUT I AM NOT PLEASED WITH THIS $38,000 MAINTENANCE TRAP…
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I HAVE HAD THE PS PUMP, STEERING GEAR BOX, FUEL PUMP, 4WD SWITCH, AND ALL ROTORS/ BRAKES REPLACED. MY SUNROOF RUBBER SEAL HAD TO BE REPLACED. ALL MY WORK HAS BEEN DONE BY A GM DEALERSHIP FROM NORTH CAROLINA, MO & WA. MY VEHICLE HAS NEVER BEEN OFF ROAD, IT IS MORE FOR LOOKS. BUT I AM NOT PLEASED WITH THIS $38,000 MAINTENANCE TRAP. I HAVE ALL DOCUMENTED WORK AND SERVICES.*AK
NHTSA ODI #763833
Mileage unknown · Feb 21, 2002
Steering
WHEN BACKING UP OR DRIVING AT VERY SLOW SPEEDS AND TURNING, THE POWER STEERING WILL NOT WORK, DEALER COULD NOT FIND A PROBLEM.*AK. CONSUMER STATED PROBLEM USUALLY OCCURS WHEN THE VEHICLE IS SITTING STILL AND TRYING TO TURN FOR A PARKING SPACE, THERE WOULD BE NO POWER ASSIST AT THAT TIME.*JB
NHTSA ODI #8004344
Mileage unknown · Oct 30, 2000
Steering
BRAND NEW 2000 TAHOE Z71 4WD SUV WITH 7000 MILES ON IT. AT APPROXIMETALY 35 MILES PER HOUR, THE TIE ROD FELL OFF CAUSING VIOLENT STEERING PROBLEMS. I MANAGED TO AVOID HITTING ANYONE AND BROUGHT THE VEHICLE UNDER CONTROL. AFTER TALKING TO SEVERAL MECHANICS. *AK
NHTSA ODI #735477
Mileage unknown · Feb 27, 2000
SteeringCrashInjury
STEERING BROKE LOOSE AND CAUSED LOSS OF CONTROL. WIFE WAS INJURED MINOR BUT CAUSED HUGE DAMAGE TO VEHICLE. THANKFUL MY KIDS WERE NOT WITH HER AND SHE IS O.K. *AK
NHTSA ODI #719331
Official recalls
6Aug 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.
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.
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.
Jul 1, 2002
ON CERTAIN PICKUP AND UTILITY TRUCKS, SOME OF THESE VEHICLES HAVE AN AIR BAG SENSING DIAGNOSTIC MODULE (SDM) WHICH CONTAINS AN ANOMALY THAT COULD RESULT IN THE DRIVER AND PASSENGER'S AIR BAG FAILING TO DEPLOY DURING CERTAIN FRONTAL CRASHES.
Consequence & remedy
Consequence: IN A VEHICLE CRASH, FRONT SEAT OCCUPANTS MAY RECEIVE MORE SEVERE INJURIES.
Remedy: DEALERS WILL RECALIBRATE THE SDM ON THE AFFECTED VEHICLES. OWNER NOTIFICATION BEGAN AUGUST 28, 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 OR GMC AT 1-800-462-8782.
Oct 30, 2000
VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS AND SPORT UTILITY VEHICLES. SOME OF THESE VEHICLES HAVE A CLEARANCE CONDITION BETWEEN THE FRONT RIGHT-HAND BRAKE PIPE AND THE BODY CROSS SILL THAT COULD DECREASE TO THE POINT OF ALLOWING CONTACT DURING THE LIFE OF THE VEHICLE. IF CONTACT OCCURS AND THE BRAKE PIPE BECOMES DAMAGED, IN HALF OF THE BRAKE SYSTEM THERE CAN BE A LOSS OF BRAKE FLUID AND PRESSURE. THE BRAKE WARNING LAMP WILL BE ACTIVATED WHEN THE BRAKE FLUID LEVEL REACHES THE INDICATOR LIMIT.
Consequence & remedy
Consequence: DURING BRAKING, THE PEDAL WILL BE LOWER THAN NORMAL AND STOPPING DISTANCES WILL BE LONGER. IF THIS OCCURS WHEN STOPPING DISTANCE IS LIMITED, A CRASH COULD OCCUR.
Remedy: DEALERS WILL INSPECT THE FRONT RIGHT-HAND BRAKE PIPE FOR WEAR. IF THERE ARE SIGNS OF WEAR, THIS SECTION OF THE BRAKE PIPE WILL BE REPLACED WITH A NEW DESIGNED BRAKE PIPE SECTION. IF THERE ARE NOT SIGNS OF WEAR ON THE BRAKE PIPE, THE DEALER WILL INSTALL A SPACER CLIP TO ENSURE SUFFICIENT CLEARANCE BETWEEN THE BRAKE PIPE AND THE BODY CROSS SILL.
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
6EA11001 · Brake Line Corrosion Failure
Opened Jan 5, 2011 · Closed Apr 8, 2015
Status: closed (inferred from source dates) · Service Brakes, Hydraulic; Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings
On January 11, 2011, ODI opened EA11-001 to investigate allegations of premature brake line corrosion failure in model year (MY) 1999 through 2003 General Motors (GM) full-size pickup trucks and sport utility vehicles sold or registered in the following region of the United States that NHTSA has viewed as salt states for investigations of corrosion related issues: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.The subject vehicles represent the first five MY's of GM's GMT800 platform production, of which approximately 2,038,504 vehicles were sold in salt states (the subject vehicles).The GMT800 platform includes the following vehicles:1999-2007 Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 series pick-up trucks; 2000-2006 Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon sport utility vehicles; and 2002-2006 Cadillac Escalade and Chevrolet Avalanche sport-utility vehicles.General Motors produced a total of approximately 10,427,062 GMT800 vehicles for sales in the United States, including almost 5 million that were sold in salt states.Although there are over 60 different brake pipe routing configuration used in GMT800 vehicles, with the exception of the rear crossover pipes in MY 200x-2007 vehicles that changed from rear disc to drum brakes, all of the vehicles use brake pipes from the same supplier with a common double-wall, brazed steel pipe design with a combination of hot dip Zinc-Aluminum corrosion protection coating and Aluminum paint outer layer known in the industry as AlGal (ASTM-B750). ODI analysis of field data regarding GMT800 vehicles identified a total of 3,645 complaints of brake pipe corrosion failures, including 107 alleging crashes, and 40 injuries.Though only 20% of total GMT800 production, due to age and region the subject vehicles account for a disproportionate share of the failure experience; with 2,702 of the complaints (75%), 88 of the crashes (82%) and 20 of the injuries (50%) reported in those vehicles.Analysis of the complaints showed strong correlations to vehicle age and region.For vehicles with less than 8 years of service, the complaint rates were minimal for all regions.In the salt states the failure rates begin to climb as the vehicles advance in age, particularly in the Northeast corner of the United States.The complaint rates in the salt states go from less than 0.1 incident per thousand vehicles (IPTV) at 7 years in service to over 1.0 IPTV after the 12th year of service for the subject pickup trucks and utility vehicles.Most of the failures reported to ODI occurred in vehicles with more than 10 years in service.ODI?s investigation did not identify any specific defect conditions that were causing or contributing to the brake pipe failures.Nor did the analysis isolate the problem to any subject vehicle sub-populations when analyzed by vehicle type or production range.The investigation found that vehicles experiencing brake pipe corrosion failures were likely to have general patterns of excessive corrosion on the majority of the brake pipe assembly and appear to be occurring due to expected wear out for the brake pipe coating material used in the subject vehicles and the environmental conditions in severe corrosion states.A safety-related defect has not been identified at this time.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor t
Additional source detail variants (2)
Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings
On January 11, 2011, ODI opened EA11-001 to investigate allegations of premature brake line corrosion failure in model year (MY) 1999 through 2003 General Motors (GM) full-size pickup trucks and sport utility vehicles sold or registered in the following region of the United States that NHTSA has viewed as salt states for investigations of corrosion related issues: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.The subject vehicles represent the first five MY's of GM's GMT800 platform production, of which approximately 2,038,504 vehicles were sold in salt states (the subject vehicles).The GMT800 platform includes the following vehicles:1999-2007 Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 series pick-up trucks; 2000-2006 Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon sport utility vehicles; and 2002-2006 Cadillac Escalade and Chevrolet Avalanche sport-utility vehicles.General Motors produced a total of approximately 10,427,062 GMT800 vehicles for sales in the United States, including almost 5 million that were sold in salt states.Although there are over 60 different brake pipe routing configuration used in GMT800 vehicles, with the exception of the rear crossover pipes in MY 200x-2007 vehicles that changed from rear disc to drum brakes, all of the vehicles use brake pipes from the same supplier with a common double-wall, brazed steel pipe design with a combination of hot dip Zinc-Aluminum corrosion protection coating and Aluminum paint outer layer known in the industry as AlGal (ASTM-B750). ODI analysis of field data regarding GMT800 vehicles identified a total of 3,645 complaints of brake pipe corrosion failures, including 107 alleging crashes, and 40 injuries.Though only 20% of total GMT800 production, due to age and region the subject vehicles account for a disproportionate share of the failure experience; with 2,702 of the complaints (75%), 88 of the crashes (82%) and 20 of the injuries (50%) reported in those vehicles.Analysis of the complaints showed strong correlations to vehicle age and region.For vehicles with less than 8 years of service, the complaint rates were minimal for all regions.In the salt states the failure rates begin to climb as the vehicles advance in age, particularly in the Northeast corner of the United States.The complaint rates in the salt states go from less than 0.1 incident per thousand vehicles (IPTV) at 7 years in service to over 1.0 IPTV after the 12th year of service for the subject pickup trucks and utility vehicles.Most of the failures reported to ODI occurred in vehicles with more than 10 years in service.ODI?s investigation did not identify any specific defect conditions that were causing or contributing to the brake pipe failures.Nor did the analysis isolate the problem to any subject vehicle sub-populations when analyzed by vehicle type or production range.The investigation found that vehicles experiencing brake pipe corrosion failures were likely to have general patterns of excessive corrosion on the majority of the brake pipe assembly and appear to be occurring due to expected wear out for the brake pipe coating material used in the subject vehicles and the environmental conditions in severe corrosion states.A safety-related defect has not been identified at this time.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor t
Service Brakes, Hydraulic
On January 11, 2011, ODI opened EA11-001 to investigate allegations of premature brake line corrosion failure in model year (MY) 1999 through 2003 General Motors (GM) full-size pickup trucks and sport utility vehicles sold or registered in the following region of the United States that NHTSA has viewed as salt states for investigations of corrosion related issues: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.The subject vehicles represent the first five MY's of GM's GMT800 platform production, of which approximately 2,038,504 vehicles were sold in salt states (the subject vehicles).The GMT800 platform includes the following vehicles:1999-2007 Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 series pick-up trucks; 2000-2006 Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon sport utility vehicles; and 2002-2006 Cadillac Escalade and Chevrolet Avalanche sport-utility vehicles.General Motors produced a total of approximately 10,427,062 GMT800 vehicles for sales in the United States, including almost 5 million that were sold in salt states.Although there are over 60 different brake pipe routing configuration used in GMT800 vehicles, with the exception of the rear crossover pipes in MY 200x-2007 vehicles that changed from rear disc to drum brakes, all of the vehicles use brake pipes from the same supplier with a common double-wall, brazed steel pipe design with a combination of hot dip Zinc-Aluminum corrosion protection coating and Aluminum paint outer layer known in the industry as AlGal (ASTM-B750). ODI analysis of field data regarding GMT800 vehicles identified a total of 3,645 complaints of brake pipe corrosion failures, including 107 alleging crashes, and 40 injuries.Though only 20% of total GMT800 production, due to age and region the subject vehicles account for a disproportionate share of the failure experience; with 2,702 of the complaints (75%), 88 of the crashes (82%) and 20 of the injuries (50%) reported in those vehicles.Analysis of the complaints showed strong correlations to vehicle age and region.For vehicles with less than 8 years of service, the complaint rates were minimal for all regions.In the salt states the failure rates begin to climb as the vehicles advance in age, particularly in the Northeast corner of the United States.The complaint rates in the salt states go from less than 0.1 incident per thousand vehicles (IPTV) at 7 years in service to over 1.0 IPTV after the 12th year of service for the subject pickup trucks and utility vehicles.Most of the failures reported to ODI occurred in vehicles with more than 10 years in service.ODI?s investigation did not identify any specific defect conditions that were causing or contributing to the brake pipe failures.Nor did the analysis isolate the problem to any subject vehicle sub-populations when analyzed by vehicle type or production range.The investigation found that vehicles experiencing brake pipe corrosion failures were likely to have general patterns of excessive corrosion on the majority of the brake pipe assembly and appear to be occurring due to expected wear out for the brake pipe coating material used in the subject vehicles and the environmental conditions in severe corrosion states.A safety-related defect has not been identified at this time.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor t
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.
PE03026 · Steel Wheel Rim Fracture
Opened Jun 12, 2003 · Closed Nov 3, 2003
Status: closed (inferred from source dates) · Wheels; Wheels:multi Piece; Wheels:rim
THERE HAVE BEEN LESS THAN 2 COMPLAINTS PER 100,000 SUBJECT VEHICLES RELATED TO THE ALLEGED DEFECT.THE OLDEST VEHICLES (MY 1999) HAVE ONLY 2 COMPLAINTS IN OVER 140 THOUSAND VEHICLES AFTER OVER 4 YEARS IN SERVICE.THE RATE OF WARRANTY CLAIMS POTENTIALLY RELATED TO THE ALLEGED DEFECT IS LESS THAN 0.1%.THERE ARE NO KNOWN INCIDENTS INVOLVING RAPID LOSS OF TIRE PRESSURE OR LOSS OF VEHICLE CONTROL. A DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.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 WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
Additional source detail variants (3)
Wheels
THERE HAVE BEEN LESS THAN 2 COMPLAINTS PER 100,000 SUBJECT VEHICLES RELATED TO THE ALLEGED DEFECT.THE OLDEST VEHICLES (MY 1999) HAVE ONLY 2 COMPLAINTS IN OVER 140 THOUSAND VEHICLES AFTER OVER 4 YEARS IN SERVICE.THE RATE OF WARRANTY CLAIMS POTENTIALLY RELATED TO THE ALLEGED DEFECT IS LESS THAN 0.1%.THERE ARE NO KNOWN INCIDENTS INVOLVING RAPID LOSS OF TIRE PRESSURE OR LOSS OF VEHICLE CONTROL. A DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.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 WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
Wheels:multi Piece
THERE HAVE BEEN LESS THAN 2 COMPLAINTS PER 100,000 SUBJECT VEHICLES RELATED TO THE ALLEGED DEFECT.THE OLDEST VEHICLES (MY 1999) HAVE ONLY 2 COMPLAINTS IN OVER 140 THOUSAND VEHICLES AFTER OVER 4 YEARS IN SERVICE.THE RATE OF WARRANTY CLAIMS POTENTIALLY RELATED TO THE ALLEGED DEFECT IS LESS THAN 0.1%.THERE ARE NO KNOWN INCIDENTS INVOLVING RAPID LOSS OF TIRE PRESSURE OR LOSS OF VEHICLE CONTROL. A DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.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 WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
Wheels:rim
THERE HAVE BEEN LESS THAN 2 COMPLAINTS PER 100,000 SUBJECT VEHICLES RELATED TO THE ALLEGED DEFECT.THE OLDEST VEHICLES (MY 1999) HAVE ONLY 2 COMPLAINTS IN OVER 140 THOUSAND VEHICLES AFTER OVER 4 YEARS IN SERVICE.THE RATE OF WARRANTY CLAIMS POTENTIALLY RELATED TO THE ALLEGED DEFECT IS LESS THAN 0.1%.THERE ARE NO KNOWN INCIDENTS INVOLVING RAPID LOSS OF TIRE PRESSURE OR LOSS OF VEHICLE CONTROL. A DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.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 WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
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.
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