NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
34 reports70,775 miles · Mar 31, 2011
Service Brakes, Hydraulic
WHILE TOWING MY TRAVEL TRAILER BACK FROM A TRAILER INSPECTION I NOTICED THE BRAKE ON MY 2001 CHEVY 2500 SUBURBAN FOR UNCOMFORTABLY CLOSE TO THE FLOOR. UPON ARRIVAL AFTER SLOWLY LIMPING HOME USING MOSTLY THE TRAILER BRAKES I FOUND THAT A REAR BRAKE LINE HAD RUPTURED AND THE REAR MASTER CYLINDER TANK WAS EMPTY. A LOCAL AUTO SHOP…
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WHILE TOWING MY TRAVEL TRAILER BACK FROM A TRAILER INSPECTION I NOTICED THE BRAKE ON MY 2001 CHEVY 2500 SUBURBAN FOR UNCOMFORTABLY CLOSE TO THE FLOOR. UPON ARRIVAL AFTER SLOWLY LIMPING HOME USING MOSTLY THE TRAILER BRAKES I FOUND THAT A REAR BRAKE LINE HAD RUPTURED AND THE REAR MASTER CYLINDER TANK WAS EMPTY. A LOCAL AUTO SHOP CUT THE LINE AND ADDED A NEW SECTION. PER THE MECHANIC THE RUPTURED LINE IS RUSTED ALONG WITH THE ADJACENT LINES. THE CUT OUT SECTION WAS THROWN OUT BEFORE I COULD SAVE IT. *TR
NHTSA ODI #10393896
102,000 miles · Oct 5, 2010
Electrical SystemVisibilityCrash
WIPER MOTOR FAIL. 2001 SUBURBAN 6.0L V8. WIPER MOTOR FAIL. THE WIPER MOTOR IN MY TRUCK ALWAYS FAILS. THE LAST TIME IT FAILED WAS SEPTEMBER 27TH 2010 DURING A HEAVY RAIN STORM. TO MAKE A LONG STORY SHORT I ALMOST RAN OVER A PEDESTRIAN, AND ENDED UP ON THE SIDEWALK. (TECHNICALLY THAT IS A CRASH) THE WIPER MOTOR JUST STOPPED…
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WIPER MOTOR FAIL. 2001 SUBURBAN 6.0L V8. WIPER MOTOR FAIL. THE WIPER MOTOR IN MY TRUCK ALWAYS FAILS. THE LAST TIME IT FAILED WAS SEPTEMBER 27TH 2010 DURING A HEAVY RAIN STORM. TO MAKE A LONG STORY SHORT I ALMOST RAN OVER A PEDESTRIAN, AND ENDED UP ON THE SIDEWALK. (TECHNICALLY THAT IS A CRASH) THE WIPER MOTOR JUST STOPPED WHILE IT WAS RAINING. LAST YEAR DURING HEAVY SNOW THE MOTOR FAILED AGAIN. I HAD TO PULL OVER FOR AN HOUR UNTIL THE STORM WAS OVER. NOT TO MENTION NUMEROUS OTHER TIMES AS WELL. THIS MOTOR FAILS A LOT I LOST COUNT. THE EVENTS THAT LEAD UP TO THE FAILED WIPER MOTOR ARE RAIN , SNOW, SLEET, SOMETIME THE MOTOR FAILS DURING A SUNNY DAY AND NO MOISTURE IN THE AIR OR FAILED JUST TO CLEAN YOUR WINDOW. NOTHING HAS BEEN DONE TO CORRECT THE WIPER MOTOR FAILURE BECAUSE IT'S TOO EXPENSIVE FOR ME; GENERAL MOTORS SHOULD FIX THIS SERIOUS PROBLEM BEFORE SOMEONE GET KILLED. *TR
NHTSA ODI #10359388
74,000 miles · Sep 17, 2010
Engine And Engine Cooling
PER NHTSA CAMPAIGN ID#07V521000, THE 2001 CHEVROLET SUBURBAN 2500 IS SUBJECT TO THIS RECALL BY GM. I HAVE EXPERIENCED THE SAME DESCRIBED PROBLEM OF VEHICLE ENGINE STALLING AND NOT OPERATIVE WHILE TRAVELING ON THE ROAD. I HAVE CONTACTED BOTH GM AND GM'S LOCAL AUTHORIZED DEALERSHIP IN CONCORD, CALIFORNIA. BOTH REFUSED TO HONOR …
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PER NHTSA CAMPAIGN ID#07V521000, THE 2001 CHEVROLET SUBURBAN 2500 IS SUBJECT TO THIS RECALL BY GM. I HAVE EXPERIENCED THE SAME DESCRIBED PROBLEM OF VEHICLE ENGINE STALLING AND NOT OPERATIVE WHILE TRAVELING ON THE ROAD. I HAVE CONTACTED BOTH GM AND GM'S LOCAL AUTHORIZED DEALERSHIP IN CONCORD, CALIFORNIA. BOTH REFUSED TO HONOR THIS RECALL. PLEASE HELP BEFORE AN ACCIDENT OCCURRED. THANK YOU. *TR
NHTSA ODI #10356139
104,000 miles · Jul 13, 2010
Service Brakes, Hydraulic
2001 SUBURBAN K2500 COMPLETE LOSS OF BRAKING DUE TO CORROSION AND RUPTURE OF BRAKE LINES FROM MASTER CYLINDER TO ABS UNIT AND FROM ABS UNIT TO RIGHT FRONT WHEEL. THIS IS THE SAME PROBLEM AS CURRENT INVESTIGATION PE10010. *TR
NHTSA ODI #10343019
121,000 miles · May 24, 2010
Structure
TL*THE CONTACT OWNS A 2001 CHEVROLET SUBURBAN 2500. THE CONTACT WAS DRIVING APPROXIMATELY 45 MPH AND THE TRAILER HITCH BEGAN TO DRAG ON THE ROADWAY. THE VEHICLE WAS MANEUVERED TO THE SIDE OF THE ROAD AND INSPECTED. THE FRAME WAS CRACKED AND BENT SIGNIFICANTLY WHERE THE TRAILER HITCH WAS ATTACHED. THE CONTACT WAS ABLE TO RESUME O…
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TL*THE CONTACT OWNS A 2001 CHEVROLET SUBURBAN 2500. THE CONTACT WAS DRIVING APPROXIMATELY 45 MPH AND THE TRAILER HITCH BEGAN TO DRAG ON THE ROADWAY. THE VEHICLE WAS MANEUVERED TO THE SIDE OF THE ROAD AND INSPECTED. THE FRAME WAS CRACKED AND BENT SIGNIFICANTLY WHERE THE TRAILER HITCH WAS ATTACHED. THE CONTACT WAS ABLE TO RESUME OPERATION WITH CAUTION. THE VEHICLE HAD NOT BEEN REPAIRED AT THE TIME OF THE COMPLAINT. THE FAILURE MILEAGE WAS APPROXIMATELY 121,000.
NHTSA ODI #10331946
108,000 miles · Apr 8, 2010
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2001 CHEVROLET SUBURBAN 2500. WHILE DRIVING APPROXIMATELY 50 MPH, THE CONTACT ATTEMPTED TO SLOW DOWN ON AN OFF RAMP BUT THE BRAKES DID NOT RESPOND. THE CONTACT USED THE EMERGENCY BRAKE TO STOP THE VEHICLE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE WHO STATED THAT THE REAR BRAKE LINE LOCATED OVER T…
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TL*THE CONTACT OWNS A 2001 CHEVROLET SUBURBAN 2500. WHILE DRIVING APPROXIMATELY 50 MPH, THE CONTACT ATTEMPTED TO SLOW DOWN ON AN OFF RAMP BUT THE BRAKES DID NOT RESPOND. THE CONTACT USED THE EMERGENCY BRAKE TO STOP THE VEHICLE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE WHO STATED THAT THE REAR BRAKE LINE LOCATED OVER THE AXLE HAD RUST ON IT. THE VEHICLE WAS REPAIRED. THE CURRENT AND FAILURE MILEAGES WERE APPROXIMATELY 108,000.
NHTSA ODI #10324450
134,000 miles · Jan 9, 2010
Engine And Engine Cooling
BEGINNING IN AUGUST 2009 MY 01 CHEVY SUBURBAN WOULD STALL WHILE I WAS DRIVING. AFTER THE FIRST TIME, A NEW BATTERY WAS INSTALLED. THIS HAPPENED 2 MORE TIMES FROM MID AUGUST 09 TO 9/15/09 AT WHICH TIME WE BROUGHT THE TRUCK IN FOR SERVICE. THE DEALER WAS UNABLE TO DUPLICATE THE PROBLEM AND WE BROUGHT THE TRUCK HOME. ABOUT A WE…
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BEGINNING IN AUGUST 2009 MY 01 CHEVY SUBURBAN WOULD STALL WHILE I WAS DRIVING. AFTER THE FIRST TIME, A NEW BATTERY WAS INSTALLED. THIS HAPPENED 2 MORE TIMES FROM MID AUGUST 09 TO 9/15/09 AT WHICH TIME WE BROUGHT THE TRUCK IN FOR SERVICE. THE DEALER WAS UNABLE TO DUPLICATE THE PROBLEM AND WE BROUGHT THE TRUCK HOME. ABOUT A WEEK LATER, IT HAPPENED AGAIN AND THEN 3 MORE TIMES BETWEEN 9/15 AND 10/15/09. DURING THIS PERIOD WE FOUND A RECALL NOTICE (GM RECALL NO. 06083) FOR A CRANKSHAFT SENSOR COVERING 2001 SUBURBANS, BUT NOT MY PARTICULAR VEHICLE. THE RECALL DETAILED THE EXACT PROBLEM I WAS HAVING. THE TRUCK WAS BROUGHT INTO THE DEALER ON 10/15/09 AND I INSISTED THAT THE CRANKSHAFT SENSOR BE REPLACED. TO DATE, THERE HAVE BEEN NO FURTHER PROBLEMS WITH THE VEHICLE AND I BELIEVE THAT THE CRANKSHAFT SENSOR WAS THE CAUSE OF THE STALLING. *TR
NHTSA ODI #10298832
88,000 miles · Nov 18, 2009
Fuel System, Gasoline
TL*THE CONTACT OWNS A 2001 CHEVROLET SUBURBAN 2500. FOR SEVERAL DAYS, HE SMELLED FUEL AND AFTER HE ADDED FUEL TO TANK HE WAS RECEIVING AND INACCURATE FUEL LEVEL READING. THE DEALER STATED THAT THERE WERE NO RECALLS RELATED TO THE FAILURE. THE MANUFACTURER STATED THAT THERE WERE NOT ENOUGH COMPLAINTS TO ISSUE A RECALL FOR HIS YEA…
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TL*THE CONTACT OWNS A 2001 CHEVROLET SUBURBAN 2500. FOR SEVERAL DAYS, HE SMELLED FUEL AND AFTER HE ADDED FUEL TO TANK HE WAS RECEIVING AND INACCURATE FUEL LEVEL READING. THE DEALER STATED THAT THERE WERE NO RECALLS RELATED TO THE FAILURE. THE MANUFACTURER STATED THAT THERE WERE NOT ENOUGH COMPLAINTS TO ISSUE A RECALL FOR HIS YEAR, MAKE AND MODEL VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE CURRENT AND THE FAILURE MILEAGES WERE 88,000.
NHTSA ODI #10292679
98,000 miles · Nov 8, 2009
Service Brakes, Hydraulic
I HAVE A 2001 CHEVROLET SUBURBAN 2500 THAT HAS A BAD ABS MODULE THAT I HAVE BEEN TRYING TO GET REPLACED SINCE JULY, SO THAT MY ABS BREAKING SYSTEM WILL WORK. THE MODULE HAS BEEN BACK ORDERED AT THE FACTORY SINCE JULY. THIS MAKES FOR AN UNSAFE VEHICLE FOR MY WIFE & FAMILY ON A DAILY BASIS. THIS WEEK WAS A VERY SCARY WEEK BECAUSE…
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I HAVE A 2001 CHEVROLET SUBURBAN 2500 THAT HAS A BAD ABS MODULE THAT I HAVE BEEN TRYING TO GET REPLACED SINCE JULY, SO THAT MY ABS BREAKING SYSTEM WILL WORK. THE MODULE HAS BEEN BACK ORDERED AT THE FACTORY SINCE JULY. THIS MAKES FOR AN UNSAFE VEHICLE FOR MY WIFE & FAMILY ON A DAILY BASIS. THIS WEEK WAS A VERY SCARY WEEK BECAUSE WE WERE DRIVING THROUGH COLORADO SPRINGS AND HAD TO STOP FAST BECAUSE OF TRAFFIC AND THE BREAKS LOCKED UP AND THE SUBURBAN STARTED TO TURN SIDEWAYS, MY WHOLE FAMILY OF 6 WAS IN THE CAR. THIS IS FRUSTRATING BECAUSE THERE IS NOTHING I CAN DO TO GET THE PARTS OR FIX THE CAR. *TR
NHTSA ODI #10291412
63,441 miles · Oct 5, 2009
Engine And Engine Cooling
TL* THE CONTACT OWNS A 2001 CHEVROLET SUBURBAN 2500. WHILE DRIVING THE VEHICLE WILL INTERMITTENTLY STALL WITHOUT ANY PRIOR WARNINGS. AN INDEPENDENT DIAGNOSTIC TEST WAS PERFORMED; AND THE CRANKSHAFT POSITION SENSOR CODE WAS DISCOVERED. THE MANUFACTURER WAS CONTACTED IN REFERENCE TO RECALL# 07V521000( ENGINE AND ENGINE COOLING). …
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TL* THE CONTACT OWNS A 2001 CHEVROLET SUBURBAN 2500. WHILE DRIVING THE VEHICLE WILL INTERMITTENTLY STALL WITHOUT ANY PRIOR WARNINGS. AN INDEPENDENT DIAGNOSTIC TEST WAS PERFORMED; AND THE CRANKSHAFT POSITION SENSOR CODE WAS DISCOVERED. THE MANUFACTURER WAS CONTACTED IN REFERENCE TO RECALL# 07V521000( ENGINE AND ENGINE COOLING). UPON CONTACT HE WAS ADVISED THAT BECAUSE HIS VEHICLE IDENTIFICATION NUMBER WAS EXCLUDED FROM THE RECALL, HE WAS INELIGIBLE FOR A FREE REMEDY. NO REPAIRS WERE MADE. THE FAILURE AND CURRENT MILEAGES WERE 63,441. UPDATED 10/27/09 *CN UPDATED 10/28/09.*JB
NHTSA ODI #10286299
NHTSA investigations
1EA06016 · Crank Position Sensor Failure - Stall
Opened Sep 14, 2006 · Closed Nov 9, 2007
Status: closed (inferred from source dates) · Engine And Engine Cooling; Engine And Engine Cooling:engine
IN A LETTER DATED NOVEMBER 7, 2007, GENERAL MOTORS (GM) REPORTED TO THE OFFICE OF DEFECTS INVESTIGATION (ODI) THAT IT WILL CONDUCT A SAFETY RECALL (07V-521) TO REPLACE THE CRANK POSITION SENSOR (CKP) IN APPROXIMATELY 12,000 MODEL YEAR (MY) 2001 CHEVROLET SILVERADO AND GMC SIERRA VEHICLES EQUIPPED WITH 8.1 LITER ENGINES MANUFACTURED ON OR BEFORE NOVEMBER 15, 2000.ACCORDING TO GM, THE CKP CAN FAIL INTERMITTENTLY OR PERMANENTLY.A PERMANENT CKP FAILURE WOULD RESULT IN AN ENGINE STALL WITHOUT RESTART.AN INTERMITTENT CKP FAILURE COULD CAUSE THE SERVICE ENGINE SOON LIGHT TO ILLUMINATE, THE VEHICLE TO RUN ROUGH OR THE ENGINE TO STALL BUT ALLOWS RESTART.AS A REMEDY, AN IMPROVED CKP WILL BE INSTALLED IN THE SUBJECT VEHICLES.THE RECALL CAMPAIGN WILL START IN DECEMBER 2007. DURING THE PRELIMINARY EVALUATION (PE06-016), AND THIS EA INVESTIGATION, GM AND ODI INDEPENDENTLY CONDUCTED DETAILED REVIEWS OF CERTAIN FIELD DATA TO UNDERSTAND THE NATURE AND RATE OF SUBJECT VEHICLE STALLING DUE TO CKP FAILURES.GM AND ODI REVIEWED GM'S WARRANTY CLAIMS FOR THE CKP WITH THE OBJECTIVE OF ASCERTAINING AN ESTIMATE OF THOSE CLAIMS REPRESENTING AN ENGINE STALL WHILE DRIVING.THE CKP WARRANTY CLAIMS WITHOUT VERBATIM TEXT WERE THE LARGEST SEGMENT OF WARRANTY CLAIMS.USING THOSE CLAIMS, GM SURVEYED VEHICLE OWNERS TO GATHER ADDITIONAL INFORMATION TO DETERMINE IF THE CLAIM WAS ASSOCIATED WITH A STALL WHILE DRIVING EVENT.BASED ON THE SURVEY, GM ESTIMATED THAT APPROXIMATELY 49% OF ALL WARRANTY REPAIRS FOR THE CKP INVOLVED A STALL WHILE DRIVING.ODI?S REVIEW OF GM'S SURVEY DATA PRODUCED A HIGHER ESTIMATE (71%) FOR STALL WHILE DRIVING.GM FURTHER ESTIMATED THE RATE OF STALL WHILE DRIVING FOR THE SUBJECT VEHICLES OVER TIME.IT ESTIMATED STALLING WHILE DRIVING RATES OF 1.6%, 4.6% AND 8.9% AT 1, 3 AND 6 YEARS IN SERVICE RESPECTIVELY.ODI'S REVIEW OF THE GM'S SURVEY DATA FINDS HIGHER ESTIMATED STALL WHILE DRIVING RATES OF 2.2%, 6.8% AND 13% AT 1, 3 AND 6 YEARS IN SERVICE RESPECTIVELY. ODI ALSO CONDUCTED A SURVEY OF VEHICLE OWNERS USING CONSUMER COMPLAINTS REPORTED TO BOTH ODI AND GM.THE OBJECTIVE WAS TO ASCERTAIN THE POTENTIAL SAFETY CONSEQUENCES OF AN ENGINE STALL DUE TO THE ALLEGED DEFECT.WITH RESPECT TO THE ABILITY TO RESTART THE VEHICLE AFTER A STALL, 11% REPORTED IMMEDIATE RESTART, 69% REPORTED DELAYED RESTART AND 20% REPORTED NO RESTART.OVER HALF NOTED AT LEAST ONE ENGINE STALL INCIDENT AT SPEEDS IN EXCESS OF 40MPH. ABOUT ONE-THIRD NOTED THE VEHICLE WAS STRANDED EITHER PARTIALLY OR FULLY IN A LANE OF TRAFFIC AFTER THE ENGINE STALL.ALL OF THE CONSUMERS SURVEYED NOTED MULTIPLE STALLING EVENTS PRIOR TO PROPER DIAGNOSIS AND REPLACEMENT OF THE CKP.BASED ON GM'S DECISION TO CONDUCT A SAFETY RECALL, THIS INVESTIGATION IS CLOSED.
Additional source detail variants (2)
Engine And Engine Cooling:engine
IN A LETTER DATED NOVEMBER 7, 2007, GENERAL MOTORS (GM) REPORTED TO THE OFFICE OF DEFECTS INVESTIGATION (ODI) THAT IT WILL CONDUCT A SAFETY RECALL (07V-521) TO REPLACE THE CRANK POSITION SENSOR (CKP) IN APPROXIMATELY 12,000 MODEL YEAR (MY) 2001 CHEVROLET SILVERADO AND GMC SIERRA VEHICLES EQUIPPED WITH 8.1 LITER ENGINES MANUFACTURED ON OR BEFORE NOVEMBER 15, 2000.ACCORDING TO GM, THE CKP CAN FAIL INTERMITTENTLY OR PERMANENTLY.A PERMANENT CKP FAILURE WOULD RESULT IN AN ENGINE STALL WITHOUT RESTART.AN INTERMITTENT CKP FAILURE COULD CAUSE THE SERVICE ENGINE SOON LIGHT TO ILLUMINATE, THE VEHICLE TO RUN ROUGH OR THE ENGINE TO STALL BUT ALLOWS RESTART.AS A REMEDY, AN IMPROVED CKP WILL BE INSTALLED IN THE SUBJECT VEHICLES.THE RECALL CAMPAIGN WILL START IN DECEMBER 2007. DURING THE PRELIMINARY EVALUATION (PE06-016), AND THIS EA INVESTIGATION, GM AND ODI INDEPENDENTLY CONDUCTED DETAILED REVIEWS OF CERTAIN FIELD DATA TO UNDERSTAND THE NATURE AND RATE OF SUBJECT VEHICLE STALLING DUE TO CKP FAILURES.GM AND ODI REVIEWED GM'S WARRANTY CLAIMS FOR THE CKP WITH THE OBJECTIVE OF ASCERTAINING AN ESTIMATE OF THOSE CLAIMS REPRESENTING AN ENGINE STALL WHILE DRIVING.THE CKP WARRANTY CLAIMS WITHOUT VERBATIM TEXT WERE THE LARGEST SEGMENT OF WARRANTY CLAIMS.USING THOSE CLAIMS, GM SURVEYED VEHICLE OWNERS TO GATHER ADDITIONAL INFORMATION TO DETERMINE IF THE CLAIM WAS ASSOCIATED WITH A STALL WHILE DRIVING EVENT.BASED ON THE SURVEY, GM ESTIMATED THAT APPROXIMATELY 49% OF ALL WARRANTY REPAIRS FOR THE CKP INVOLVED A STALL WHILE DRIVING.ODI?S REVIEW OF GM'S SURVEY DATA PRODUCED A HIGHER ESTIMATE (71%) FOR STALL WHILE DRIVING.GM FURTHER ESTIMATED THE RATE OF STALL WHILE DRIVING FOR THE SUBJECT VEHICLES OVER TIME.IT ESTIMATED STALLING WHILE DRIVING RATES OF 1.6%, 4.6% AND 8.9% AT 1, 3 AND 6 YEARS IN SERVICE RESPECTIVELY.ODI'S REVIEW OF THE GM'S SURVEY DATA FINDS HIGHER ESTIMATED STALL WHILE DRIVING RATES OF 2.2%, 6.8% AND 13% AT 1, 3 AND 6 YEARS IN SERVICE RESPECTIVELY. ODI ALSO CONDUCTED A SURVEY OF VEHICLE OWNERS USING CONSUMER COMPLAINTS REPORTED TO BOTH ODI AND GM.THE OBJECTIVE WAS TO ASCERTAIN THE POTENTIAL SAFETY CONSEQUENCES OF AN ENGINE STALL DUE TO THE ALLEGED DEFECT.WITH RESPECT TO THE ABILITY TO RESTART THE VEHICLE AFTER A STALL, 11% REPORTED IMMEDIATE RESTART, 69% REPORTED DELAYED RESTART AND 20% REPORTED NO RESTART.OVER HALF NOTED AT LEAST ONE ENGINE STALL INCIDENT AT SPEEDS IN EXCESS OF 40MPH. ABOUT ONE-THIRD NOTED THE VEHICLE WAS STRANDED EITHER PARTIALLY OR FULLY IN A LANE OF TRAFFIC AFTER THE ENGINE STALL.ALL OF THE CONSUMERS SURVEYED NOTED MULTIPLE STALLING EVENTS PRIOR TO PROPER DIAGNOSIS AND REPLACEMENT OF THE CKP.BASED ON GM'S DECISION TO CONDUCT A SAFETY RECALL, THIS INVESTIGATION IS CLOSED.
Engine And Engine Cooling
IN A LETTER DATED NOVEMBER 7, 2007, GENERAL MOTORS (GM) REPORTED TO THE OFFICE OF DEFECTS INVESTIGATION (ODI) THAT IT WILL CONDUCT A SAFETY RECALL (07V-521) TO REPLACE THE CRANK POSITION SENSOR (CKP) IN APPROXIMATELY 12,000 MODEL YEAR (MY) 2001 CHEVROLET SILVERADO AND GMC SIERRA VEHICLES EQUIPPED WITH 8.1 LITER ENGINES MANUFACTURED ON OR BEFORE NOVEMBER 15, 2000.ACCORDING TO GM, THE CKP CAN FAIL INTERMITTENTLY OR PERMANENTLY.A PERMANENT CKP FAILURE WOULD RESULT IN AN ENGINE STALL WITHOUT RESTART.AN INTERMITTENT CKP FAILURE COULD CAUSE THE SERVICE ENGINE SOON LIGHT TO ILLUMINATE, THE VEHICLE TO RUN ROUGH OR THE ENGINE TO STALL BUT ALLOWS RESTART.AS A REMEDY, AN IMPROVED CKP WILL BE INSTALLED IN THE SUBJECT VEHICLES.THE RECALL CAMPAIGN WILL START IN DECEMBER 2007. DURING THE PRELIMINARY EVALUATION (PE06-016), AND THIS EA INVESTIGATION, GM AND ODI INDEPENDENTLY CONDUCTED DETAILED REVIEWS OF CERTAIN FIELD DATA TO UNDERSTAND THE NATURE AND RATE OF SUBJECT VEHICLE STALLING DUE TO CKP FAILURES.GM AND ODI REVIEWED GM'S WARRANTY CLAIMS FOR THE CKP WITH THE OBJECTIVE OF ASCERTAINING AN ESTIMATE OF THOSE CLAIMS REPRESENTING AN ENGINE STALL WHILE DRIVING.THE CKP WARRANTY CLAIMS WITHOUT VERBATIM TEXT WERE THE LARGEST SEGMENT OF WARRANTY CLAIMS.USING THOSE CLAIMS, GM SURVEYED VEHICLE OWNERS TO GATHER ADDITIONAL INFORMATION TO DETERMINE IF THE CLAIM WAS ASSOCIATED WITH A STALL WHILE DRIVING EVENT.BASED ON THE SURVEY, GM ESTIMATED THAT APPROXIMATELY 49% OF ALL WARRANTY REPAIRS FOR THE CKP INVOLVED A STALL WHILE DRIVING.ODI?S REVIEW OF GM'S SURVEY DATA PRODUCED A HIGHER ESTIMATE (71%) FOR STALL WHILE DRIVING.GM FURTHER ESTIMATED THE RATE OF STALL WHILE DRIVING FOR THE SUBJECT VEHICLES OVER TIME.IT ESTIMATED STALLING WHILE DRIVING RATES OF 1.6%, 4.6% AND 8.9% AT 1, 3 AND 6 YEARS IN SERVICE RESPECTIVELY.ODI'S REVIEW OF THE GM'S SURVEY DATA FINDS HIGHER ESTIMATED STALL WHILE DRIVING RATES OF 2.2%, 6.8% AND 13% AT 1, 3 AND 6 YEARS IN SERVICE RESPECTIVELY. ODI ALSO CONDUCTED A SURVEY OF VEHICLE OWNERS USING CONSUMER COMPLAINTS REPORTED TO BOTH ODI AND GM.THE OBJECTIVE WAS TO ASCERTAIN THE POTENTIAL SAFETY CONSEQUENCES OF AN ENGINE STALL DUE TO THE ALLEGED DEFECT.WITH RESPECT TO THE ABILITY TO RESTART THE VEHICLE AFTER A STALL, 11% REPORTED IMMEDIATE RESTART, 69% REPORTED DELAYED RESTART AND 20% REPORTED NO RESTART.OVER HALF NOTED AT LEAST ONE ENGINE STALL INCIDENT AT SPEEDS IN EXCESS OF 40MPH. ABOUT ONE-THIRD NOTED THE VEHICLE WAS STRANDED EITHER PARTIALLY OR FULLY IN A LANE OF TRAFFIC AFTER THE ENGINE STALL.ALL OF THE CONSUMERS SURVEYED NOTED MULTIPLE STALLING EVENTS PRIOR TO PROPER DIAGNOSIS AND REPLACEMENT OF THE CKP.BASED ON GM'S DECISION TO CONDUCT A SAFETY RECALL, THIS INVESTIGATION IS CLOSED.
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