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2002 Chevrolet Avalanche

Owner reports · Recalls · Investigations

More warning signs than most Avalanche years

Owner complaints for the 2002 Chevrolet Avalanche are substantially higher than the model-year median of 82.

About this comparison →

When problems were reported

Mileage at the reported incident

313 reports with mileage · 131 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 115 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Structure. Review the 67 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes. Review the 54 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

38 crash reports0 fire reports21 injury reports

Service Brakes, Hydraulic complaints

115 reports
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Mileage unknown · Aug 31, 2005
Service Brakes, Hydraulic

ON 7/12/05, I HAD MY VEHICLE AT CHEVROLET 73 FOR THE BRAKES. AT THAT TIME THEY INFORMED ME I NEEDED BRAKE PADS AND ROTORS ALL THE WAY AROUND THE VEHICLE. THEY TOLD ME AND SHOWED ME THE "EXCESSIVE RUST" ON THE ROTORS. THE VEHICLE IS ONLY 3 YRS OLD AND ONLY HAD 35,000 MILES ON IT. I WAS UPSET THAT THEY GOT TO THAT POINT AND NO…

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ON 7/12/05, I HAD MY VEHICLE AT CHEVROLET 73 FOR THE BRAKES. AT THAT TIME THEY INFORMED ME I NEEDED BRAKE PADS AND ROTORS ALL THE WAY AROUND THE VEHICLE. THEY TOLD ME AND SHOWED ME THE "EXCESSIVE RUST" ON THE ROTORS. THE VEHICLE IS ONLY 3 YRS OLD AND ONLY HAD 35,000 MILES ON IT. I WAS UPSET THAT THEY GOT TO THAT POINT AND NOW IT WAS GOING TO COST ME $1000 TO REPLACE THEM. ALL MY SERVICE WAS PERFORMED AT THIS DEALER. AFTER I COMPLAINED THEY TOLD ME THEY WOULD CUT THE PRICE TO $360. THEY WANTED TO "CUT" THE BACK ROTORS REPLACE ALL THE PADS AND IF THE FRONT ROTORS NEED TO BE REPLACED THEY WOULD "HAVE GM PICK UP THAT COST". I WAS EXTREMELY SKEPTICAL ABOUT THEM DOING THE WORK. IF THEY ORIGINALLY FELT I NEEDED TO REPLACE THE PADS AND ROTORS, HOW COULD THIS LESS EXPENSIVE REPAIR BE SAFE? I DID NOT ALLOW THEM TO DO THE JOB AND HAD IT PERFORMED AT ANOTHER SERVICE CENTER. THIS AM MY LOCAL PAPER HAD AN ARTICLE ABOUT THE RECALL OF 800,000 VEHICLES DUE TO CORROSION AFFECTING THE ANTI-LOCK BRAKE SYSTEM LEADING TO LOW-SPEED CRASHES. MY VEHICLE IS A 2002 AVALANCHE AND IS PART OF THAT RECALL. WHEN I CALLED GM THEY INFORMED ME IT WAS THE "ANTI-LOCK BRAKES SENSOR." MY THOUGHT IS IF THE SENSOR IS AFFECTED BY THE CORROSION, THE CORROSION ALSO CONTRIBUTED TO THE RAPID DETERIORATION OF THE ROTORS AND THAT AFFECTED THE BRAKE PADS. THIS IS A SAFETY ISSUE THAT SHOULD ALSO BE RECALLED ALONG WITH THE SENSOR. I WOULD APPRECIATE YOUR HELP IN THIS MATTER, THERE MAY BE OTHER GM OWNERS OUT THERE THAT DO NOT REALIZE THIS IS HAPPENING AND COULD RESULT IN MORE SERIOUS CRASHES. *JB

NHTSA ODI #10134890

150 miles · Aug 31, 2005
Service Brakes, HydraulicCrash

PURCHASED AVALANCHE IN MAY 2001, HAD ACCIDENT IN OCEAN CITY NJ 2 WEEKS AFTER OWNING TRUCK. TOLD DEALER PROBLEM WITH BRAKES. I WAS TOLD IT'S IN MY HEAD. 2003 TOOK TRUCK THROUGH INSPECTION, THEY SAID MAY HAVE FRONT BRAKING PROBLEM BUT PASSED ME THROUGH TO DO LOAD IN BED OF TRUCK. NOW HAVE BURNING SMELL IN DRIVER FRONT TIRE AREA AF…

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PURCHASED AVALANCHE IN MAY 2001, HAD ACCIDENT IN OCEAN CITY NJ 2 WEEKS AFTER OWNING TRUCK. TOLD DEALER PROBLEM WITH BRAKES. I WAS TOLD IT'S IN MY HEAD. 2003 TOOK TRUCK THROUGH INSPECTION, THEY SAID MAY HAVE FRONT BRAKING PROBLEM BUT PASSED ME THROUGH TO DO LOAD IN BED OF TRUCK. NOW HAVE BURNING SMELL IN DRIVER FRONT TIRE AREA AFTER 40 MIN OF CITY DRIVING. JUST READ ABOUT BRAKE RECALL. PLEASE CONTACT ME. *JB

NHTSA ODI #10134860

16,934 miles · Aug 31, 2005
Service Brakes, Hydraulic

ON INSPECTION I WAS TOLD THAT I HAD A LOT OF CORROSION (VERY RUSTY)ON REAR ROTORS AND SAID I WOULD NEED TO HAVE THEM RESURFACED AND SERVICE THE CALIPERS AND REPLACE PADS @16,934 ACTUAL MILES. VERY POOR BRAKING ABILITY AND NOT WANTING TO STOP AS SHOULD. ALSO I KEPT HAVING PROBLEMS STOPPING AS SHOULD IN ANY DISTANCE AND CAME VE…

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ON INSPECTION I WAS TOLD THAT I HAD A LOT OF CORROSION (VERY RUSTY)ON REAR ROTORS AND SAID I WOULD NEED TO HAVE THEM RESURFACED AND SERVICE THE CALIPERS AND REPLACE PADS @16,934 ACTUAL MILES. VERY POOR BRAKING ABILITY AND NOT WANTING TO STOP AS SHOULD. ALSO I KEPT HAVING PROBLEMS STOPPING AS SHOULD IN ANY DISTANCE AND CAME VERY NEAR IN GETTING INTO AN ACCIDENT. HAD I BEEN GOING MUCH OVER THE 35 MILES I WAS I WOULD HAVE HIT THE CAR THAT PULLED OUT IN FRONT OF ME FOR VERY POOR BRAKING. I THEN TOOK VEHICLE INTO ANOTHER DEALERSHIP CLOSER TO ME AND WAS ROAD TESTED THEY COME UP WITH REPLACEMENT AND THAT I WOULD NEED NEW ROTORS AND PADS FRONT BECAUSE OF A LOT OF CORROSION AND RUST AND NEW REAR @ 17,778 ACTUAL MILES DONE JULY 22,2005 FOR PROBLEMS SPONGY BRAKES AS THEY WERE, PLUS THE ANTI-LOCK DID NOT SEEM TO WORK RIGHT FOR SOMETIME. VERY SCARED TO DRIVE MY TRUCK AFTER COUPLE OF NEAR ACCIDENTS.. RESURFACING $110.00 PLUS PAD KIT $59.95 WITHOUT TAXES, LABOR 183.95 AND $492.64 NO LABOR CHARGED WITH ARRANGEMENTS WITH OTHER DEALERSHIP.

NHTSA ODI #10134857

80,000 miles · Aug 30, 2005
Service Brakes, HydraulicCrash

I AM ENTERING THIS IN REGARDS TO YOUR INVESTIGATION PE05020. THIS IS ON AN INCORRECT ACTIVATION OF THE ANTI-LOCK BRAKE SYSTEM IN CHEVY TRUCKS 99-2002. I BELIEVE MY VEHICLE HAS THIS DEFECT AND IT MAY HAVE CONTRIBUTED TO TWO ACCIDENTS. THE DEFECT IS IN THE ANTI LOCK BRAKE SPEED SENSOR AND OCCURS DUE TO CORROSION. MY FAMILY HAS…

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I AM ENTERING THIS IN REGARDS TO YOUR INVESTIGATION PE05020. THIS IS ON AN INCORRECT ACTIVATION OF THE ANTI-LOCK BRAKE SYSTEM IN CHEVY TRUCKS 99-2002. I BELIEVE MY VEHICLE HAS THIS DEFECT AND IT MAY HAVE CONTRIBUTED TO TWO ACCIDENTS. THE DEFECT IS IN THE ANTI LOCK BRAKE SPEED SENSOR AND OCCURS DUE TO CORROSION. MY FAMILY HAS A SNOW REMOVAL BUSINESS SO I FREQUENTLY USE THE TRUCK IN BAD WEATHER..ALSO I LIVED ACROSS THE STREET FROM THE OCEAN FOR A YEAR SO THE TRUCK WAS FREQUENTLY EXPOSED TO SALT SPRAY. I WOULD BE HAPPY TO LET YOU EXAMINE THE TRUCK IF YOU WOULD LIKE. I HAVE NOT GONE TO CHEVY TO REQUEST REPAIR YET..AWAITING ADVICE FROM MY INSURANCE COMPANY. *JB

NHTSA ODI #10134844

30,000 miles · Aug 30, 2005
Service Brakes, Hydraulic

BRAKING DISTANCE IS VERY LONG. REAR BRAKE PADS WEAR OUT MUCH FASTER THAN FRONT PADS. AS AN ENGINEER, I SUSPECT THAT THE ANTILOCK BRAKING SYSTEM IS PREVENTING HYDRAULIC PRESSURE FROM REACHING FRONT CALIPERS, AND THEREBY REDUCING BRAKING EFFECTIVENESS. *NM

NHTSA ODI #10134764

46,000 miles · Aug 3, 2005
Service Brakes, Hydraulic

DT: CALLER HAD FAULTY BRAKES FOR THE LAST THREE WEEKS. WHILE COMING TO A STOP THE BRAKE WILL NOT HOLD AND THE VEHICLE KEPT ROLLING. DEALER SAID THEY WILL CHECK IT. MANUFACTURER HAS NOT BEEN CONTACTED YET. VEHICLE WAS OWNED BY NESTER BROTHERS CONTRACTORS.*AK

NHTSA ODI #10131224

21,000 miles · Aug 2, 2005
Service Brakes, Hydraulic

# 1-JULY 05---E BRAKE AND FOOT BRAKE WENT TO THE FLOOR BOARDS..REAR ROTORS REPLACED BECAUSE THEY WERE ROTTED,000 MILES 3 AND 1/2 YEARS..INFERIOR METAL WAS USED.........#2 WAS TOLD BY CHEVY I MUST ANTICIPATE ALL STOPS AND TURNS..STEP ON BRAKES SOONER BURN THEM OUT QUICKER..7/30/05 3 PEOPLE IN TRUCK & THE AC ON,DRIVING IN JERSEY…

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# 1-JULY 05---E BRAKE AND FOOT BRAKE WENT TO THE FLOOR BOARDS..REAR ROTORS REPLACED BECAUSE THEY WERE ROTTED,000 MILES 3 AND 1/2 YEARS..INFERIOR METAL WAS USED.........#2 WAS TOLD BY CHEVY I MUST ANTICIPATE ALL STOPS AND TURNS..STEP ON BRAKES SOONER BURN THEM OUT QUICKER..7/30/05 3 PEOPLE IN TRUCK & THE AC ON,DRIVING IN JERSEY, ALMOST HAD THREE HITS. TRUCK WOULDN'T STOP UNDER QUICK STOPS OR LAST MINUTE TURNS BY PEOPLE IN FRONT OF ME. FOUND OUT THE 2003 ON UP HAVE HYDRAULIC IN STEAD OF VACUUM. WHY DID I NOT GET A RECALL OR A RETRO FIT NOTICE TO HAVE THE BRAKE SYSTEM WORK OFF HYDRAULIC AND HAVE THE ROTORS REPLACED BECAUSE OF INFERIOR METAL..CHEVY CHARGED ME $ 100-PLUS FOR A DIAGNOSTIC THAT MADE NO MENTION ABOUT ROTTED ROTORS , BUT FOR $500 PLUS THEY DID SAY THEY WOULD CUT THE REAR ROTORS NEW PADS AND SHOES-- BECAUSE THE SYSTEM IS CALLED BRAKE IN A HAT!!!!!!!*JB

NHTSA ODI #10131125

3,000 miles · Jul 12, 2005
Service Brakes, Hydraulic

DT: CONTACT STATES HE IS HAVING A PROBLEM WITH HIS ABS. THE BRAKES PULSATE AND THEY DON'T STOP THE VEHICLE. THE CONSUMER NOTICED THE PULSATION WHILE DRIVING AT LOWER SPEEDS BUT NOT AS MUCH AS WHEN HE IS TRAVELING AT HIGHER SPEEDS. THIS OCCURS DURING NORMAL BRAKING. THIS HAS BEEN GOING ON AT SOME DEGREE SINCE HE BOUGHT THE CAR.…

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DT: CONTACT STATES HE IS HAVING A PROBLEM WITH HIS ABS. THE BRAKES PULSATE AND THEY DON'T STOP THE VEHICLE. THE CONSUMER NOTICED THE PULSATION WHILE DRIVING AT LOWER SPEEDS BUT NOT AS MUCH AS WHEN HE IS TRAVELING AT HIGHER SPEEDS. THIS OCCURS DURING NORMAL BRAKING. THIS HAS BEEN GOING ON AT SOME DEGREE SINCE HE BOUGHT THE CAR. IT HAS GOTTEN PROGRESSIVELY WORSE. IT IS HAPPENING ALL OF THE TIME NOW. THE BRAKE LIGHT DOES NOT COME ON. THERE IS ALSO A GRINDING NOISE BEFORE THIS HAPPENS. THE CONSUMER IS GOING TO TAKE THE CAR INTO THE DEALER TOMORROW. HE HAS NOT YET TALKED TO THE MANUFACTURER. THE CAR HAS 22,000 MILES ON IT. THERE HAS NOT BEEN ANY KIND OF REPAIR WORK DONE FOR THE BRAKES. *NM

NHTSA ODI #10128449

Mileage unknown · Jul 8, 2005
Service Brakes, Hydraulic

DT: CHEVROLET AVALANCHE 2002. CONTACT STATES THE BRAKES PULSATE; THE PEDAL GOES TO THE FLOOR, AND DOES NOT HAVE BRAKING CAPABILITY. THIS DOES NOT HAPPEN ALL THE TIME. NEITHER WEATHER NOR ROAD CONDITIONS SEEMED TO AFFECT THIS PROBLEM. THE VEHICLE WAS REPAIRED TWICE, BUT PROBLEM RECURRED. *AK CHEVROLET REPLACED THE ROTORS,…

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DT: CHEVROLET AVALANCHE 2002. CONTACT STATES THE BRAKES PULSATE; THE PEDAL GOES TO THE FLOOR, AND DOES NOT HAVE BRAKING CAPABILITY. THIS DOES NOT HAPPEN ALL THE TIME. NEITHER WEATHER NOR ROAD CONDITIONS SEEMED TO AFFECT THIS PROBLEM. THE VEHICLE WAS REPAIRED TWICE, BUT PROBLEM RECURRED. *AK CHEVROLET REPLACED THE ROTORS, BRAKE PADS AS THEY RUSTED AND OR FLAKED. *SC THE CONSUMER BELIEVED THE PROBLEM WAS WITH THE BRAKE BOOSTER AND NOT THE ROTORS. *JB

NHTSA ODI #10125364

65,000 miles · Jun 16, 2005
Service Brakes, Hydraulic

IN MY 2002 CHEVY AVALANCHE, WHEN I CAME TO SLOW DOWN TO MAKE A STOP APPROX 5-15 MPH, I WOULD APPLY THE BRAKES AND IT FELT LIKE THE PEDDLE WAS STUCK AND I COULD NOT FULLY DEPRESS THE PEDDLE TO STOP. ALSO THE ABS BRAKES SEEMED TO KICK ON EVEN IF I WAS ON DRY PAVEMENT AT THIS SLOWING STOPPING SPEED. WHEN THIS OCCURED I COULD NOT …

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IN MY 2002 CHEVY AVALANCHE, WHEN I CAME TO SLOW DOWN TO MAKE A STOP APPROX 5-15 MPH, I WOULD APPLY THE BRAKES AND IT FELT LIKE THE PEDDLE WAS STUCK AND I COULD NOT FULLY DEPRESS THE PEDDLE TO STOP. ALSO THE ABS BRAKES SEEMED TO KICK ON EVEN IF I WAS ON DRY PAVEMENT AT THIS SLOWING STOPPING SPEED. WHEN THIS OCCURED I COULD NOT STOP AS QUICKLY AS I NORMALLY COULD WITH PROPERLY FUNCTIONING BRAKES. AT TIMES IF FELT LIKE I WOULD NOT BE ABLE TO STOP AT ALL. THERE WAS NEVER ANY DAMAGE DUE TO THE FAILURE OF THE BREAKS (LUCKILY). A MECHANIC LOOKED AT THE HUB ASSEMBLY AND INDICATED WHAT COULD BE DONE TO FIX THE PROBLEM. NO REPAIRS WERE MADE TO THE VEHICLE, BUT THE MECHANIC TURNED OFF THE SENSORS AS HE SAW THAT ONE SENSOR WAS CORRODED. HE DID NOT LOOK AT THE OTHER SENSOR.

NHTSA ODI #10125566

Official recalls

2

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.

04V129000 · Structure:body:tailgate:hinge And Attachments

Mar 17, 2004

ON CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES, THE GALVANIZED STEEL TAILGATE SUPPORT CABLES THAT RETAIN THE TAILGATE IN THE FULL OPEN (HORIZONTAL) POSITION MAY CORRODE, WEAKEN, AND EVENTUALLY FRACTURE. IF BOTH CABLES FRACTURED, THE TAILGATE WOULD SUDDENLY DROP AND STRIKE THE TOP SURFACE OF THE REAR BUMPER.

Consequence & remedy

Consequence: ANYONE SITTING OR STANDING ON THE HORIZONTAL SURFACE OF THE TAILGATE WHEN BOTH CABLES FRACTURED COULD BE INJURED BY FALLING FROM THE TAILGATE. ON VEHICLES THAT HAVE HAD THE BUMPER REMOVED, THE TAILGATE MAY DROP EVEN LOWER. ADDITIONALLY, IF THERE IS CARGO ON THE TAILGATE THE CARGO MAY FALL OFF IF THE SUPPORT CABLES FRACTURE.

Remedy: DEALERS WILL REPLACE THE CABLES. INTERIM OWNER NOTIFICATION BEGAN ON APRIL 7, 20004. THE RECALL BEGAN ON SEPTEMBER 24, 2004, WHEN REPLACEMENT PARTS WERE AVAILABLE, AND WILL CONTINUE THROUGH OCTOBER 29, 2004. OWNERS SHOULD CONTACT CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438 OR GMC AT 1-866-996-9463, OR VISIT WWW.MYGMLINK.COM, AND ENTER YOUR VEHICLE IDENTIFICATION NUMBER.

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

7

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.

PE06016 · Crank Position Sensor Failure - Stall

Opened May 4, 2006 · Closed Sep 14, 2006

Status: closed (inferred from source dates) · Engine And Engine Cooling; Engine And Engine Cooling:engine

THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION (PE06-016) ON MAY 4, 2006 BASED ON ELEVEN VEHICLE OWNER QUESTIONNAIRES (VOQS) AND EARLY WARNING (EWR) DATA ALLEGING SUDDEN ENGINE SHUTDOWN WHILE DRIVING AS A RESULT OF CRANK POSITION SENSOR FAILURES IN MY 2001-2002 GENERAL MOTORS C/K PLATFORM VEHICLES EQUIPPED WITH 8.1L ENGINES.IN RESPONSE TO AN INFORMATION REQUEST LETTER SENT BY ODI, GENERAL MOTORS (GM) PROVIDED OWNER COMPLAINT INFORMATION, FIELD REPORTS AND WARRANTY CLAIM DATA BASED ON A POPULATION OF 108,338 VEHICLES. THE DATA WAS CATEGORIZED BY ENGINE STALLS WHILE DRIVING, ENGINE STALLS WITH AN UNKNOWN DRIVING CONDITION, NO START CONDITIONS AND CLAIMS WHERE IT WAS INDETERMINATE IF AN ENGINE STALL OCCURRED WHILE DRIVING.GENERAL MOTOR'S RESPONSE INCLUDED 1,213 OWNER COMPLAINTS AND FIELD REPORTS OF WHICH 289 WERE CATEGORIZED AS ENGINE STALLS WHILE DRIVING ALLEGEDLY CAUSED BY CRANK POSITION SENSOR FAILURES. GENERAL MOTORS ALSO SUBMITTED WARRANTY CLAIMS FROM ITS REGULAR WARRANTY (5 YEARS/50,000 MILES) AND FROM ITS EXTENDED WARRANTY DATABASE. FROM THE REGULAR WARRANTY DATABASE THERE WERE 3,140 CLAIMS OF CRANK POSITION SENSOR REPLACEMENT OF WHICH 147 CLAIMS WERE FROM CONSUMERS ALLEGING ENGINE STALL WHILE DRIVING.GM STATED THAT 2,841 OF THE CLAIMS WERE INDETERMINATE IF AN ENGINE STALL OCCURRED WHILE DRIVING.FROM ITS EXTENDED WARRANTY DATABASE, GM SUBMITTED 1,561 CLAIMS OF CRANK POSITION SENSOR FAILURE THAT IT ALSO STATED WERE INDETERMINATE AS TO WHETHER AN ENGINE STALL OCCURRED WHILE DRIVING.IN TOTAL, GM REPORTS 4,701 CLAIMS OF CRANK POSITION SENSOR FAILURE COMBINING REGULAR WARRANTY AND EXTENDED WARRANTY.SIMILAR TO GM'S STATISTICAL ANALYSIS, ODI'S ANALYSIS SHOWED THAT THE FAILURE RATE FOR WARRANTY CLAIMS OF ENGINE STALL WHILE DRIVING AT THREE YEARS IN SERVICE IS LOW (LESS THAN 1%).HOWEVER, FURTHER ANALYSIS DETERMINED THAT THE MY 2001 VEHICLE BUILD PERIOD FROM MAY 2000 THROUGH OCTOBER 2000 HAD SIGNIFICANTLY HIGHER (MORE THAN FOUR TIMES) CRANK POSITION FAILURE RATES IN BOTH CONSUMER COMPLAINT DATA AND WARRANTY CLAIM DATA THAN IN THE BUILD PERIOD FROM NOVEMBER 2000 THROUGH JULY 2001.ADDING THE CLAIMS OF KNOWN ENGINE STALL WHILE DRIVING AND CLAIMS WHERE ENGINE STALL WAS INDETERMINATE, THE FAILURE RATE AT THREE YEARS IN SERVICE FOR THIS POPULATION IS OVER 6%.AN ENGINEERING ANALYSIS (EA06-016) HAS BEEN OPENED TO FURTHER ASSESS THE FREQUENCY AND POTENTIAL SAFETY CONSEQUENCES ASSOCIATED WITH THE ALLEGED DEFECT IN VEHICLES BUILT FROM MAY 2000 THROUGH OCTOBER 2000.

Additional source detail variants (2)

Engine And Engine Cooling:engine

THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION (PE06-016) ON MAY 4, 2006 BASED ON ELEVEN VEHICLE OWNER QUESTIONNAIRES (VOQS) AND EARLY WARNING (EWR) DATA ALLEGING SUDDEN ENGINE SHUTDOWN WHILE DRIVING AS A RESULT OF CRANK POSITION SENSOR FAILURES IN MY 2001-2002 GENERAL MOTORS C/K PLATFORM VEHICLES EQUIPPED WITH 8.1L ENGINES.IN RESPONSE TO AN INFORMATION REQUEST LETTER SENT BY ODI, GENERAL MOTORS (GM) PROVIDED OWNER COMPLAINT INFORMATION, FIELD REPORTS AND WARRANTY CLAIM DATA BASED ON A POPULATION OF 108,338 VEHICLES. THE DATA WAS CATEGORIZED BY ENGINE STALLS WHILE DRIVING, ENGINE STALLS WITH AN UNKNOWN DRIVING CONDITION, NO START CONDITIONS AND CLAIMS WHERE IT WAS INDETERMINATE IF AN ENGINE STALL OCCURRED WHILE DRIVING.GENERAL MOTOR'S RESPONSE INCLUDED 1,213 OWNER COMPLAINTS AND FIELD REPORTS OF WHICH 289 WERE CATEGORIZED AS ENGINE STALLS WHILE DRIVING ALLEGEDLY CAUSED BY CRANK POSITION SENSOR FAILURES. GENERAL MOTORS ALSO SUBMITTED WARRANTY CLAIMS FROM ITS REGULAR WARRANTY (5 YEARS/50,000 MILES) AND FROM ITS EXTENDED WARRANTY DATABASE. FROM THE REGULAR WARRANTY DATABASE THERE WERE 3,140 CLAIMS OF CRANK POSITION SENSOR REPLACEMENT OF WHICH 147 CLAIMS WERE FROM CONSUMERS ALLEGING ENGINE STALL WHILE DRIVING.GM STATED THAT 2,841 OF THE CLAIMS WERE INDETERMINATE IF AN ENGINE STALL OCCURRED WHILE DRIVING.FROM ITS EXTENDED WARRANTY DATABASE, GM SUBMITTED 1,561 CLAIMS OF CRANK POSITION SENSOR FAILURE THAT IT ALSO STATED WERE INDETERMINATE AS TO WHETHER AN ENGINE STALL OCCURRED WHILE DRIVING.IN TOTAL, GM REPORTS 4,701 CLAIMS OF CRANK POSITION SENSOR FAILURE COMBINING REGULAR WARRANTY AND EXTENDED WARRANTY.SIMILAR TO GM'S STATISTICAL ANALYSIS, ODI'S ANALYSIS SHOWED THAT THE FAILURE RATE FOR WARRANTY CLAIMS OF ENGINE STALL WHILE DRIVING AT THREE YEARS IN SERVICE IS LOW (LESS THAN 1%).HOWEVER, FURTHER ANALYSIS DETERMINED THAT THE MY 2001 VEHICLE BUILD PERIOD FROM MAY 2000 THROUGH OCTOBER 2000 HAD SIGNIFICANTLY HIGHER (MORE THAN FOUR TIMES) CRANK POSITION FAILURE RATES IN BOTH CONSUMER COMPLAINT DATA AND WARRANTY CLAIM DATA THAN IN THE BUILD PERIOD FROM NOVEMBER 2000 THROUGH JULY 2001.ADDING THE CLAIMS OF KNOWN ENGINE STALL WHILE DRIVING AND CLAIMS WHERE ENGINE STALL WAS INDETERMINATE, THE FAILURE RATE AT THREE YEARS IN SERVICE FOR THIS POPULATION IS OVER 6%.AN ENGINEERING ANALYSIS (EA06-016) HAS BEEN OPENED TO FURTHER ASSESS THE FREQUENCY AND POTENTIAL SAFETY CONSEQUENCES ASSOCIATED WITH THE ALLEGED DEFECT IN VEHICLES BUILT FROM MAY 2000 THROUGH OCTOBER 2000.

Engine And Engine Cooling

THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION (PE06-016) ON MAY 4, 2006 BASED ON ELEVEN VEHICLE OWNER QUESTIONNAIRES (VOQS) AND EARLY WARNING (EWR) DATA ALLEGING SUDDEN ENGINE SHUTDOWN WHILE DRIVING AS A RESULT OF CRANK POSITION SENSOR FAILURES IN MY 2001-2002 GENERAL MOTORS C/K PLATFORM VEHICLES EQUIPPED WITH 8.1L ENGINES.IN RESPONSE TO AN INFORMATION REQUEST LETTER SENT BY ODI, GENERAL MOTORS (GM) PROVIDED OWNER COMPLAINT INFORMATION, FIELD REPORTS AND WARRANTY CLAIM DATA BASED ON A POPULATION OF 108,338 VEHICLES. THE DATA WAS CATEGORIZED BY ENGINE STALLS WHILE DRIVING, ENGINE STALLS WITH AN UNKNOWN DRIVING CONDITION, NO START CONDITIONS AND CLAIMS WHERE IT WAS INDETERMINATE IF AN ENGINE STALL OCCURRED WHILE DRIVING.GENERAL MOTOR'S RESPONSE INCLUDED 1,213 OWNER COMPLAINTS AND FIELD REPORTS OF WHICH 289 WERE CATEGORIZED AS ENGINE STALLS WHILE DRIVING ALLEGEDLY CAUSED BY CRANK POSITION SENSOR FAILURES. GENERAL MOTORS ALSO SUBMITTED WARRANTY CLAIMS FROM ITS REGULAR WARRANTY (5 YEARS/50,000 MILES) AND FROM ITS EXTENDED WARRANTY DATABASE. FROM THE REGULAR WARRANTY DATABASE THERE WERE 3,140 CLAIMS OF CRANK POSITION SENSOR REPLACEMENT OF WHICH 147 CLAIMS WERE FROM CONSUMERS ALLEGING ENGINE STALL WHILE DRIVING.GM STATED THAT 2,841 OF THE CLAIMS WERE INDETERMINATE IF AN ENGINE STALL OCCURRED WHILE DRIVING.FROM ITS EXTENDED WARRANTY DATABASE, GM SUBMITTED 1,561 CLAIMS OF CRANK POSITION SENSOR FAILURE THAT IT ALSO STATED WERE INDETERMINATE AS TO WHETHER AN ENGINE STALL OCCURRED WHILE DRIVING.IN TOTAL, GM REPORTS 4,701 CLAIMS OF CRANK POSITION SENSOR FAILURE COMBINING REGULAR WARRANTY AND EXTENDED WARRANTY.SIMILAR TO GM'S STATISTICAL ANALYSIS, ODI'S ANALYSIS SHOWED THAT THE FAILURE RATE FOR WARRANTY CLAIMS OF ENGINE STALL WHILE DRIVING AT THREE YEARS IN SERVICE IS LOW (LESS THAN 1%).HOWEVER, FURTHER ANALYSIS DETERMINED THAT THE MY 2001 VEHICLE BUILD PERIOD FROM MAY 2000 THROUGH OCTOBER 2000 HAD SIGNIFICANTLY HIGHER (MORE THAN FOUR TIMES) CRANK POSITION FAILURE RATES IN BOTH CONSUMER COMPLAINT DATA AND WARRANTY CLAIM DATA THAN IN THE BUILD PERIOD FROM NOVEMBER 2000 THROUGH JULY 2001.ADDING THE CLAIMS OF KNOWN ENGINE STALL WHILE DRIVING AND CLAIMS WHERE ENGINE STALL WAS INDETERMINATE, THE FAILURE RATE AT THREE YEARS IN SERVICE FOR THIS POPULATION IS OVER 6%.AN ENGINEERING ANALYSIS (EA06-016) HAS BEEN OPENED TO FURTHER ASSESS THE FREQUENCY AND POTENTIAL SAFETY CONSEQUENCES ASSOCIATED WITH THE ALLEGED DEFECT IN VEHICLES BUILT FROM MAY 2000 THROUGH OCTOBER 2000.

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.

EA04012 · Hydraulic Pump Failres

Opened Apr 30, 2004 · Closed Feb 28, 2005

Status: closed (inferred from source dates) · Service Brakes, Hydraulic:power Assist; Steering:hydraulic Power Assist System

GM IS CONDUCTING A RECALL ON ALL SUBJECT VEHICLES BUILD BETWEEN MAY 1999 AND OCTOBER 14, 1999.SIGNIFICANT CHANGES WERE INCORPORATED INTO PRODUCTION IN EARLY OCTOBER 1999, AND VEHICLES BUILT AFTER THAT DATE HAVE LOWER WARRANTY FAILURE RATES.THE COMPLAINT AND WARRANTY DATA APPEAR TO SUPPORT THE EFFECTIVENESS OF THESE CHANGES. GM MADE ADDITIONAL CHANGES IN NOVEMBER 1999, FEBRUARY 2000, MAY 2001, AND FEBRUARY 2004.ODI WILL CONTINUE TO MONITOR THIS PROBLEM AND WILL TAKE FURTHER ACTION, IF WARRANTED, IN THE FUTURE.FOR FURTHER TECHNICAL DETAILS SEE THE ATTACHED ENGINEERING ANALYSIS REPORT.

Additional source detail variants (2)

Service Brakes, Hydraulic:power Assist

GM IS CONDUCTING A RECALL ON ALL SUBJECT VEHICLES BUILD BETWEEN MAY 1999 AND OCTOBER 14, 1999.SIGNIFICANT CHANGES WERE INCORPORATED INTO PRODUCTION IN EARLY OCTOBER 1999, AND VEHICLES BUILT AFTER THAT DATE HAVE LOWER WARRANTY FAILURE RATES.THE COMPLAINT AND WARRANTY DATA APPEAR TO SUPPORT THE EFFECTIVENESS OF THESE CHANGES. GM MADE ADDITIONAL CHANGES IN NOVEMBER 1999, FEBRUARY 2000, MAY 2001, AND FEBRUARY 2004.ODI WILL CONTINUE TO MONITOR THIS PROBLEM AND WILL TAKE FURTHER ACTION, IF WARRANTED, IN THE FUTURE.FOR FURTHER TECHNICAL DETAILS SEE THE ATTACHED ENGINEERING ANALYSIS REPORT.

Steering:hydraulic Power Assist System

GM IS CONDUCTING A RECALL ON ALL SUBJECT VEHICLES BUILD BETWEEN MAY 1999 AND OCTOBER 14, 1999.SIGNIFICANT CHANGES WERE INCORPORATED INTO PRODUCTION IN EARLY OCTOBER 1999, AND VEHICLES BUILT AFTER THAT DATE HAVE LOWER WARRANTY FAILURE RATES.THE COMPLAINT AND WARRANTY DATA APPEAR TO SUPPORT THE EFFECTIVENESS OF THESE CHANGES. GM MADE ADDITIONAL CHANGES IN NOVEMBER 1999, FEBRUARY 2000, MAY 2001, AND FEBRUARY 2004.ODI WILL CONTINUE TO MONITOR THIS PROBLEM AND WILL TAKE FURTHER ACTION, IF WARRANTED, IN THE FUTURE.FOR FURTHER TECHNICAL DETAILS SEE THE ATTACHED ENGINEERING ANALYSIS REPORT.

EA04005 · Tailgate Cable Breakage

Opened Feb 19, 2004 · Closed Sep 28, 2004

Status: closed (inferred from source dates) · Latches/locks/linkages:tailgate:latch; Structure:body:tailgate ; Structure:body:tailgate:hinge And Attachments

GENERAL MOTORS FILED A DEFECT NOTICE 04V-129 ON MARCH 17, 2004, WHICH OUTLINES A PROGRAM TO REPLACE THE TAILGATE CABLES INSTALLED IN AFFECTED MODEL YEAR 2000-2004 VEHICLES.REFER TO ODI'S CLOSING REPORT FOR EA04-005 FOR ADDITIONAL INFORMATION.ODI IS AWARE OF REPORTS OF TAILGATE CABLE BREAKAGE OCCURRING IN MODEL YEAR 1999 AND EARLIER VEHICLES.THESE VEHICLES WERE EQUIPPED WITH SIMILAR TAILGATE CABLES AS ADDRESSED BY 04V-129, BUT ARE NOT BEING ADDRESSED BY CAMPAIGN O4V-129.ODI IS INITIATING A SEPARATE INVESTIGATION TO ADDRESS THESE VEHICLES.THE COMPLAINT-INJURY-FATALITY STATISTICS SUMMARIZED ABOVE PERTAIN TO MODEL YEAR 2000-2004 VEHICLES. THE COMPLAINT-INJURY STATISTICS FOR MODEL YEAR 1999 AND EARLIER VEHICLES ARE SUMMARIZED ON THE OPENING RESUME FOR THAT INVESTIGATION.

Additional source detail variants (6)

Latches/locks/linkages:tailgate:latch

GENERAL MOTORS FILED A DEFECT NOTICE 04V-129 ON MARCH 17, 2004, WHICH OUTLINES A PROGRAM TO REPLACE THE TAILGATE CABLES INSTALLED IN AFFECTED MODEL YEAR 2000-2004 VEHICLES.REFER TO ODI'S CLOSING REPORT FOR EA04-005 FOR ADDITIONAL INFORMATION.ODI IS AWARE OF REPORTS OF TAILGATE CABLE BREAKAGE OCCURRING IN MODEL YEAR 1999 AND EARLIER VEHICLES.THESE VEHICLES WERE EQUIPPED WITH SIMILAR TAILGATE CABLES AS ADDRESSED BY 04V-129, BUT ARE NOT BEING ADDRESSED BY CAMPAIGN O4V-129.ODI IS INITIATING A SEPARATE INVESTIGATION TO ADDRESS THESE VEHICLES.THE COMPLAINT-INJURY-FATALITY STATISTICS SUMMARIZED ABOVE PERTAIN TO MODEL YEAR 2000-2004 VEHICLES. THE COMPLAINT-INJURY STATISTICS FOR MODEL YEAR 1999 AND EARLIER VEHICLES ARE SUMMARIZED ON THE OPENING RESUME FOR THAT INVESTIGATION.

Latches/locks/linkages:tailgate:latch

GENERAL MOTORS FILED A DEFECT NOTICE 04V-129 ON MARCH 17, 2004, WHICH OUTLINES A PROGRAM TO REPLACE THE TAILGATE CABLES INSTALLED IN AFFECTED MODEL YEAR 2000-2004 VEHICLES.REFER TO ODI'S CLOSING REPORT FOR EA04-005 FOR ADDITIONAL INFORMATION.ODI IS AWARE OF REPORTS OF TAILGATE CABLE BREAKAGE OCCURRING IN MODEL YEAR 1999 AND EARLIER VEHICLES.THESE VEHICLES WERE EQUIPPED WITH SIMILAR TAILGATE CABLES AS ADDRESSED BY 04V-129, BUT ARE NOT BEING ADDRESSED BY CAMPAIGN O4V-129.ODI IS INITIATING A SEPARATE INVESTIGATION TO ADDRESS THESE VEHICLES.THE COMPLAINT-INJURY-FATALITY STATISTICS SUMMARIZED ABOVE PERTAIN TO MODEL YEAR 2000-2004 VEHICLES. THE COMPLAINT-INJURY STATISTICS FOR MODEL YEAR 1999 AND EARLIER VEHICLES ARE SUMMARIZED ON THE OPENING RESUME FOR THAT INVESTIGATION.

Structure:body:tailgate

GENERAL MOTORS FILED A DEFECT NOTICE 04V-129 ON MARCH 17, 2004, WHICH OUTLINES A PROGRAM TO REPLACE THE TAILGATE CABLES INSTALLED IN AFFECTED MODEL YEAR 2000-2004 VEHICLES.REFER TO ODI'S CLOSING REPORT FOR EA04-005 FOR ADDITIONAL INFORMATION.ODI IS AWARE OF REPORTS OF TAILGATE CABLE BREAKAGE OCCURRING IN MODEL YEAR 1999 AND EARLIER VEHICLES.THESE VEHICLES WERE EQUIPPED WITH SIMILAR TAILGATE CABLES AS ADDRESSED BY 04V-129, BUT ARE NOT BEING ADDRESSED BY CAMPAIGN O4V-129.ODI IS INITIATING A SEPARATE INVESTIGATION TO ADDRESS THESE VEHICLES.THE COMPLAINT-INJURY-FATALITY STATISTICS SUMMARIZED ABOVE PERTAIN TO MODEL YEAR 2000-2004 VEHICLES. THE COMPLAINT-INJURY STATISTICS FOR MODEL YEAR 1999 AND EARLIER VEHICLES ARE SUMMARIZED ON THE OPENING RESUME FOR THAT INVESTIGATION.

Structure:body:tailgate

GENERAL MOTORS FILED A DEFECT NOTICE 04V-129 ON MARCH 17, 2004, WHICH OUTLINES A PROGRAM TO REPLACE THE TAILGATE CABLES INSTALLED IN AFFECTED MODEL YEAR 2000-2004 VEHICLES.REFER TO ODI'S CLOSING REPORT FOR EA04-005 FOR ADDITIONAL INFORMATION.ODI IS AWARE OF REPORTS OF TAILGATE CABLE BREAKAGE OCCURRING IN MODEL YEAR 1999 AND EARLIER VEHICLES.THESE VEHICLES WERE EQUIPPED WITH SIMILAR TAILGATE CABLES AS ADDRESSED BY 04V-129, BUT ARE NOT BEING ADDRESSED BY CAMPAIGN O4V-129.ODI IS INITIATING A SEPARATE INVESTIGATION TO ADDRESS THESE VEHICLES.THE COMPLAINT-INJURY-FATALITY STATISTICS SUMMARIZED ABOVE PERTAIN TO MODEL YEAR 2000-2004 VEHICLES. THE COMPLAINT-INJURY STATISTICS FOR MODEL YEAR 1999 AND EARLIER VEHICLES ARE SUMMARIZED ON THE OPENING RESUME FOR THAT INVESTIGATION.

Structure:body:tailgate:hinge And Attachments

GENERAL MOTORS FILED A DEFECT NOTICE 04V-129 ON MARCH 17, 2004, WHICH OUTLINES A PROGRAM TO REPLACE THE TAILGATE CABLES INSTALLED IN AFFECTED MODEL YEAR 2000-2004 VEHICLES.REFER TO ODI'S CLOSING REPORT FOR EA04-005 FOR ADDITIONAL INFORMATION.ODI IS AWARE OF REPORTS OF TAILGATE CABLE BREAKAGE OCCURRING IN MODEL YEAR 1999 AND EARLIER VEHICLES.THESE VEHICLES WERE EQUIPPED WITH SIMILAR TAILGATE CABLES AS ADDRESSED BY 04V-129, BUT ARE NOT BEING ADDRESSED BY CAMPAIGN O4V-129.ODI IS INITIATING A SEPARATE INVESTIGATION TO ADDRESS THESE VEHICLES.THE COMPLAINT-INJURY-FATALITY STATISTICS SUMMARIZED ABOVE PERTAIN TO MODEL YEAR 2000-2004 VEHICLES. THE COMPLAINT-INJURY STATISTICS FOR MODEL YEAR 1999 AND EARLIER VEHICLES ARE SUMMARIZED ON THE OPENING RESUME FOR THAT INVESTIGATION.

Structure:body:tailgate:hinge And Attachments

GENERAL MOTORS FILED A DEFECT NOTICE 04V-129 ON MARCH 17, 2004, WHICH OUTLINES A PROGRAM TO REPLACE THE TAILGATE CABLES INSTALLED IN AFFECTED MODEL YEAR 2000-2004 VEHICLES.REFER TO ODI'S CLOSING REPORT FOR EA04-005 FOR ADDITIONAL INFORMATION.ODI IS AWARE OF REPORTS OF TAILGATE CABLE BREAKAGE OCCURRING IN MODEL YEAR 1999 AND EARLIER VEHICLES.THESE VEHICLES WERE EQUIPPED WITH SIMILAR TAILGATE CABLES AS ADDRESSED BY 04V-129, BUT ARE NOT BEING ADDRESSED BY CAMPAIGN O4V-129.ODI IS INITIATING A SEPARATE INVESTIGATION TO ADDRESS THESE VEHICLES.THE COMPLAINT-INJURY-FATALITY STATISTICS SUMMARIZED ABOVE PERTAIN TO MODEL YEAR 2000-2004 VEHICLES. THE COMPLAINT-INJURY STATISTICS FOR MODEL YEAR 1999 AND EARLIER VEHICLES ARE SUMMARIZED ON THE OPENING RESUME FOR THAT INVESTIGATION.

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.