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2002 GMC Yukon Xl

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2002 GMC Yukon Xl do not stand out strongly from the model-year median of 68.

About this comparison →

How this year compares

Owner complaints by model year

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

What owners reported most

All reported categories

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When problems were reported

Mileage at the reported incident

80 reports with mileage · 15 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 19 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine And Engine Cooling. Review the 10 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel System, Gasoline. Review the 10 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

5 crash reports1 fire reports2 injury reports

What owners actually said

95 reports
50,000 miles · Jan 25, 2005
Parking Brake

DURING 2004 STATE VEHICLE EMISSIONS AND SAFETY INSPECTION IT WAS DETERMINED THAT THE PARKING BRAKE DID NOT WORK. AS A RESULT VEHICLE FAILED INSPECTION AND WILL NOT PASS UNTIL ISSUE RESOLVED. WHEN PARKING BRAKE IS PRESSED, THE PEDAL EASILY REACHES THE FLOOR AND DOES NOT HOLD VEHICLE. GMC CUSTOMER ASSISTANCE NOTIFIED 01/25/05. NO…

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DURING 2004 STATE VEHICLE EMISSIONS AND SAFETY INSPECTION IT WAS DETERMINED THAT THE PARKING BRAKE DID NOT WORK. AS A RESULT VEHICLE FAILED INSPECTION AND WILL NOT PASS UNTIL ISSUE RESOLVED. WHEN PARKING BRAKE IS PRESSED, THE PEDAL EASILY REACHES THE FLOOR AND DOES NOT HOLD VEHICLE. GMC CUSTOMER ASSISTANCE NOTIFIED 01/25/05. NOT SURE ON RESOLUTION. DEALER WANTS TO REPLACE ENTIRE REAR BRAKE ASSEMBLY, QUOTE HIGH COST FOR WORK, NOT COVERED UNDER EXTENDED WARRANTY, DEALER BLAMING ON NORMAL WEAR AND TEAR. INSPECTION PLACE COMMENTED ON SIMILAR ISSUES WITH ALL OTHER GMC YUKON 2002 MODEL. *NM

NHTSA ODI #10107895

48,500 miles · Dec 22, 2004
Parking Brake

DURING 2004 STATE VEHICLE EMISSIONS AND SAFETY INSPECTION IT WAS DETERMINED THAT THE PARKING BRAKE DID NOT WORK. AS A RESULT VEHICLE FAILED INSPECTION AND WILL NOT PASS UNTIL ISSUE RESOLVED. GMC CUSTOMER ASSISTANCE NOTIFIED 12/21 AND DIAGNOSIS AND REPAIR TO BEGIN 12/22. WHEN PARKING BRAKE IS PRESSED, THE PEDAL EASILY REACHE…

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DURING 2004 STATE VEHICLE EMISSIONS AND SAFETY INSPECTION IT WAS DETERMINED THAT THE PARKING BRAKE DID NOT WORK. AS A RESULT VEHICLE FAILED INSPECTION AND WILL NOT PASS UNTIL ISSUE RESOLVED. GMC CUSTOMER ASSISTANCE NOTIFIED 12/21 AND DIAGNOSIS AND REPAIR TO BEGIN 12/22. WHEN PARKING BRAKE IS PRESSED, THE PEDAL EASILY REACHES THE FLOOR AND DOES NOT HOLD VEHICLE. *JB

NHTSA ODI #10104291

49,900 miles · Nov 11, 2004
Wheels

I AM THE ORIGINAL OWNER OF A 2002 YUKON XL TRUCK. I PURCHASED THE TRUCK TWO YEARS AGO FROM A GMC DEALER IN MACON GA. I NOTICED THE STEERING COLUMN FELT LOOSE AND MADE UNUSUAL NOISE WHEN GOING OVER BUMPS AND WHEN TURNING. I TOOK THE TRUCK INTO A LOCAL DEALER UNDER A WARRANTY CALL. THE SERVICE DEPARTMENT REPAIRED/ADJUSTED THE …

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I AM THE ORIGINAL OWNER OF A 2002 YUKON XL TRUCK. I PURCHASED THE TRUCK TWO YEARS AGO FROM A GMC DEALER IN MACON GA. I NOTICED THE STEERING COLUMN FELT LOOSE AND MADE UNUSUAL NOISE WHEN GOING OVER BUMPS AND WHEN TURNING. I TOOK THE TRUCK INTO A LOCAL DEALER UNDER A WARRANTY CALL. THE SERVICE DEPARTMENT REPAIRED/ADJUSTED THE STEERING SYSTEM AND THE VEHICLE DROVE FINE FOR APPROXIMATELY 6 MONTHS. HOWEVER THE SAME NOISE CAME BACK AND THE TRUCKS ANTI LOCK BRAKE LIGHT AND TRACTION ASSISTANCE LIGHTS CAME ON. I TOOK THE TRUCK TO A REPAIR SHOP TO HAVE IT LOOKED. THE SHOPS OWNER DISCOVERED ONE OF THE FRONT HUB ASSEMBLIES HAD FAILED AND NEEDED TO BE REPLACED. THE OWNER TOLD ME THE HUBS BEARINGS HAD COMPLETELY FAILED AND THERE WAS A STRONG POSSIBILITY THE WHEEL COULD HAVE SEPARATED FROM THE VEHICLE. THIS TRUCK IS 2 YEARS OLD AND ONLY HAS 50,000 MILES ON IT. *JB

NHTSA ODI #10098650

54,792 miles · Oct 20, 2004
Fuel System, Gasoline

VEHICLE WOULD NOT START. FUEL PUMP WAS DEFECTIVE. HAD FUEL PUMP REPLACED.

NHTSA ODI #10096099

3 miles · Oct 18, 2004
Parking Brake

THE PARKING BRAKE DID NOT ENGAGE WHEN DEPRESSED ALL THE WAY TO THE FLOOR. THE OWNER HAS CONTACTED THE MANUFACTURER AND THE DEALERSHIP AND THEY STATED THERE WAS NOTHING WRONG. THE OWNER RECEIVED A SECOND OPINION AND WAS TOLD THAT THE POSITIONING OF THE PARKING BRAKE WAS DEFECTIVE. PROVIDE FURTHER DETAILS. *JB

NHTSA ODI #10097071

19,000 miles · Apr 1, 2004
Tires

UPON ROTATING THE TIRES MECHANIC DETERMINED THAT ALL 4 TIRES INNER TREAD WAS CUPPING. HOWEVER, MECHANIC COULD NOT IDENTIFY THE CAUSE OF THE TIRE CUPPING BECAUSE VEHICLE'S ALIGNMENT WAS UP TO SPECS, AND TIRE PRESSURE WAS WELL MAINTAINED.*AK *MR

NHTSA ODI #10061245

24,000 miles · Feb 7, 2004
Tires

TREAD SEPARATION ON FIRESTONE WILDERNESS TIRE. *AK

NHTSA ODI #10056745

30,000 miles · Nov 19, 2003
Fuel System, Gasoline

FUEL TANK LEAKS WHEN FILLED BEYOND 2/3-3/4 FULL. GAS TANK LEAKED GAS ON GARAGE FLOOR DAMAGING COATED/SEALED FLOOR. FORTUNATELY LEAKAGE WAS DISCOVERED BEFORE IT WAS ABLE TO IGNITE. VEHICLE WAS TAKEN TO DEALER AND I WAS ADVISED THAT IN FACT THE PROBLEM WAS A FAULTY GAS TANK. I WAS ALSO ADVISED INITIALLY THAT A REPLACEMENT TANK W…

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FUEL TANK LEAKS WHEN FILLED BEYOND 2/3-3/4 FULL. GAS TANK LEAKED GAS ON GARAGE FLOOR DAMAGING COATED/SEALED FLOOR. FORTUNATELY LEAKAGE WAS DISCOVERED BEFORE IT WAS ABLE TO IGNITE. VEHICLE WAS TAKEN TO DEALER AND I WAS ADVISED THAT IN FACT THE PROBLEM WAS A FAULTY GAS TANK. I WAS ALSO ADVISED INITIALLY THAT A REPLACEMENT TANK WOULD NOT BE AVAILABLE UNTIL JANUARY, 2004. AS IT TURNS OUT, THEY OBVIOUSLY HAVE HAD A SIGNIFICANT NUMBER OF THESE COMPLAINTS AND I SUSPECT THAT THEY HAVE HAD TO REDESIGN AND PRODUCE A SAFER REPLACEMENT TANK. MY DEALER HAS REPLACED "SEVERAL" OF THESE TANKS. WHY WAS THERE NOT A NOTICE SENT OUT TO THE OWNERS OF THESE VEHICLES WHEN THEY ARE AWARE OF THE SIGNIFICANCE OF THE PROBLEM. ARE WE GOING TO HAVE TO WAIT UNTIL THE LEAKAGE OF FUEL IN OUR GARAGES IS IGNITED WITH A WATER HEATER COMING ON WHILE WE ARE SLEEPING? THIS PROBLEM MUST BE ADDRESSED IMMEDIATELY. I PURCHASED ANOTHER IDENTICAL YUKON XL WITH MY DAUGHTER FROM THIS SAME DEALER. THIS VEHICLE IS CURRENTLY OUT OF SERVICE AT THE DEALERS LOCATION WAITING FOR A REPLACEMENT GAS TANK. *LA

NHTSA ODI #10047155

26,000 miles · Oct 28, 2003
Tires

TIRES ON 2002 GMC YUKON XL FIRESTONE WILDERNESS P265R70-16 ARE CUPPING AND ARE WORN OUT. 26000 MILES. GMC DEALER SAYS IT IS TIRE DEFECT, FIRESTONE DEALER SAYS IT A DESIGN DEFECT IN VEHICLE. FIRESTONE DEALER SAYS THEY SEE NUMEROUS CASES OF PREMATURE TIRE WARE DUE TO DESIGN DEFECT IN VEHICLE FRONT SUSPENSION. NEED ASSISTANCE IN RE…

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TIRES ON 2002 GMC YUKON XL FIRESTONE WILDERNESS P265R70-16 ARE CUPPING AND ARE WORN OUT. 26000 MILES. GMC DEALER SAYS IT IS TIRE DEFECT, FIRESTONE DEALER SAYS IT A DESIGN DEFECT IN VEHICLE. FIRESTONE DEALER SAYS THEY SEE NUMEROUS CASES OF PREMATURE TIRE WARE DUE TO DESIGN DEFECT IN VEHICLE FRONT SUSPENSION. NEED ASSISTANCE IN RESOLVING ISSUE OF DEFECT TIRE VS VEHICLE. *LA

NHTSA ODI #10043795

Mileage unknown · Sep 23, 2003
Equipment

I REALIZE THIS MAY NOT SEEM LIKE A SAFETY ISSUE; BUT BEAR WITH ME. WE HAVE A YUKON XL GMC 2002 MODEL. WE HAVE HAD THE CARPET REPLACED 3 TIMES!! THERE IS A DEFECT IN THE CARPET ON THIS MODEL. IT SHEDS, NOT A LITTLE HAND FULLS. IF YOU ROLL THE WINDOW DOWN "FUZZ" FROM THE CARPET IS FLYING EVERYWHERE. AFTER DISCUSSION WITH ANNE…

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I REALIZE THIS MAY NOT SEEM LIKE A SAFETY ISSUE; BUT BEAR WITH ME. WE HAVE A YUKON XL GMC 2002 MODEL. WE HAVE HAD THE CARPET REPLACED 3 TIMES!! THERE IS A DEFECT IN THE CARPET ON THIS MODEL. IT SHEDS, NOT A LITTLE HAND FULLS. IF YOU ROLL THE WINDOW DOWN "FUZZ" FROM THE CARPET IS FLYING EVERYWHERE. AFTER DISCUSSION WITH ANNE MARIE EXECUTIVE FOR GMC, I LEARNED THAT 2002, 2003, AND SOON TO BE 2004 CARPET IS LIKE THIS. THIS WILL CAUSE AN ACCIDENT COUNT ON IT. YOU ARE SO CAUGHT OFF GUARD AT THE FLYING CARPET. PLEASE JUST LOOK INTO THIS MATTER. I RECEIVED AN ANSWER OF THAT IS JUST THE WAY IT IS AND WE DON'T HAVE TO CHANGE IT.

NHTSA ODI #10039370

Official recalls

1

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.

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

3

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.

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.