NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
30 reportsClear category filter75,000 miles · Jan 8, 2011
EquipmentFuel System, GasolineService Brakes, Hydraulic
TRANS AXLE WENT OUT APRIL 09 WITH A HORRIBLE MESS OF OIL, STEERING RACK REPLACED 6 MONTHS LATER, DRIVER SIDE WINDOW/ MOTOR PROBLEM, FUEL PUMP WENT 75,000 A BIT SHY OF A YEAR LATER. NOW MY DEFROST ISN'T WORKING; POSSIBLY THE SWITCH 85,000. HAD BRAKES DONE TWICE SO FAR WITH LEAKS; THIS INCLUDES HYDRAULICS, ROTORS, PADS, SHOES ET…
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TRANS AXLE WENT OUT APRIL 09 WITH A HORRIBLE MESS OF OIL, STEERING RACK REPLACED 6 MONTHS LATER, DRIVER SIDE WINDOW/ MOTOR PROBLEM, FUEL PUMP WENT 75,000 A BIT SHY OF A YEAR LATER. NOW MY DEFROST ISN'T WORKING; POSSIBLY THE SWITCH 85,000. HAD BRAKES DONE TWICE SO FAR WITH LEAKS; THIS INCLUDES HYDRAULICS, ROTORS, PADS, SHOES ETC. MY STEERING HAS SEIZED WHILE DRIVING. THIS CAR HAS BEEN A VERY EXPENSIVE INCONVENIENCE. *LN
NHTSA ODI #10375199
102,000 miles · Jun 23, 2010
Engine And Engine CoolingService Brakes, Hydraulic
ABS, TRAC OFF AND CHECK ENGINE LIGHTS STAY ON. THERE IS A TSB ON THIS BUT SINCE IT AFFECTS BRAKE OPERATION THIS SHOULD BE A MANDATORY RECALL. *TR
NHTSA ODI #10339805
120,000 miles · Feb 14, 2008
Service Brakes, Hydraulic
THE TRACTION-CONTROL DOES NOT WORK. THE DASHBOARD SHOWS THE "SERVICE," "ABS," AND "LOW TRAC" LIGHT. THESE TYPICALLY COME ON SOON AFTER THE ENGINE IS STARTED, WHEN THE BRAKES ARE PRESSED OR THE STEERING WHEEL IS TURNED. *TR
NHTSA ODI #10218014
25,000 miles · Nov 16, 2006
Service Brakes, Hydraulic
I HAVE A 2003 CAVALIER AND I AM EXPERIENCING PROBLEMS WITH FRONT BRAKE ROTORS AGAIN. WHEN CAR WAS 1 1/2 YEARS OLD I EXPERIENCED WHEEL VIBRATION, TOOK CAR TO DEALERSHIP WHERE I BOUGHT IT AND THEY TOLD ME THAT THE BRAKE ROTORS WERE WARPED AND THAT THEY WOULD REPLACE THEM UNDER WARRANTY. I CHECKED THEM ABOUT 2 WEEKS LATER AND FOU…
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I HAVE A 2003 CAVALIER AND I AM EXPERIENCING PROBLEMS WITH FRONT BRAKE ROTORS AGAIN. WHEN CAR WAS 1 1/2 YEARS OLD I EXPERIENCED WHEEL VIBRATION, TOOK CAR TO DEALERSHIP WHERE I BOUGHT IT AND THEY TOLD ME THAT THE BRAKE ROTORS WERE WARPED AND THAT THEY WOULD REPLACE THEM UNDER WARRANTY. I CHECKED THEM ABOUT 2 WEEKS LATER AND FOUND THAT ALL THEY DID WAS TURN THE ROTORS DOWN THEY DIDN'T REPLACE THEM . VIBRATION PROBLEM WAS FIXED I THOUGHT . GOT NEW TIRES ON CAR AND ABOUT 6 MONTHS LATER THE VIBRATION PROBLEM SURFACED AGAIN. SO I TOOK CAR TO A REGULAR BRAKE REPAIR SHOP AND WAS INFORMED THAT THE ROTORS WERE INDEED WARPED. SO HAD THE WORK DONE FOR ABOUT 350.00 THIS LASTED FOR AWHILE TILL WARRANTY IS OUT NOW PROBLEM IS BACK AGAIN. TO ME IT SEEMS LIKE A MANUFACTURING DEFECT/ OR IT COULD BE THE CHEAP FACTORY WHEELS. CAR IS A BIG DISAPPOINTMENT. FIRST BRAKE SERVICE WAS 20 THOUSAND PLUS MILES, SECOND TIME CAR HAS 45000 ON IT, THESE ARE MOSTLY HIGHWAY MILES NOT A LOT OF STOP AND GO. I HAVE A 94 S-10 WITH 109000 MILES AND IT,S ONLY HAD 3 BRAKE JOBS IN 12 YRS. THIS CAR IS ONLY THREE YRS OLD WITH LOW MILES AND IT,S ON IT,S THIRD TIME. *JB
NHTSA ODI #10173689
1,392 miles · Aug 16, 2005
Electrical SystemEngine And Engine CoolingService Brakes, Hydraulic
DT: THE CONSUMER OWNS A 2003 CHEVROLET CAVILER. WAS LOSING CONTROL OF THE STEERING AND THE BRAKES. IT STARTED IN THE WINTER. THE CONSUMER STATED THE DIRECTION THAT CAR WAS HEADED WAS THE WAY IT STAYED. ALSO, SHE NOTICED THAT THERE WAS A HUM IN THE STEERING WHEEL WHICH LASTED A COUPLE OF SECONDS EACH TIME. THE CONSUMER C…
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DT: THE CONSUMER OWNS A 2003 CHEVROLET CAVILER. WAS LOSING CONTROL OF THE STEERING AND THE BRAKES. IT STARTED IN THE WINTER. THE CONSUMER STATED THE DIRECTION THAT CAR WAS HEADED WAS THE WAY IT STAYED. ALSO, SHE NOTICED THAT THERE WAS A HUM IN THE STEERING WHEEL WHICH LASTED A COUPLE OF SECONDS EACH TIME. THE CONSUMER CONTACTED THE DEALER, AND THEY SAID THAT IT DID NOT SOUND TO THEM AS DANGEROUS. A COUPLE OF MONTHS LATER THE PROBLEM FINALLY CAME TO AHEAD IN JUNE. LIGHTS CAME ON THE DASHBOARD. THE BELT BROKE, AND THE ALTERNATOR SEIZED. WHEN THE CAR WAS REPAIRED BY THE DEALER THEY CONCLUDED THE ALTERNATOR AND THE BELT MALFUNCTIONED. ALSO HEARD A GRINDING NOISE IN THE BRAKES. THE DEALER NEVER DID ANY REPAIRS TO THE STEERING. THE CONSUMER SAID THAT THE KEY WAS HOT AFTER IT HAD BEEN IN THE IGNITION. AND THE STEERING WHEEL WAS TIGHT WHEN TURNING TO THE RIGHT. THE CAR WENT BACK TO THE DEALER , AND SHE DID NOT HAVE THE TIGHTNESS TO THE STEERING. BUT, THE CAR WAS STILL PULLING TO THE RIGHT. THE BRAKES WERE SPONGY. THERE WAS A POPPING SOUND IN THE FRONT WHEEL. THERE WAS A DELAY IN THE SPEED OF THE CAR. AND ALMOST HAD A COLLISION. *AK
NHTSA ODI #10133041
42,500 miles · Aug 6, 2005
Service Brakes, Hydraulic
REAR DRUMS ARE WEARING OUT FASTER THAN FRONT BRAKES. *JB
NHTSA ODI #10131797
9,800 miles · Jun 24, 2005
Service Brakes, Hydraulic
DT: CALLER SAYS REAR DRIVER SIDE WHEEL LOCKS UP UNDER 30 MPH. WHEN CALLER HITS BRAKE HE CAN FEEL IT GRAB. WHEN HE TRIES TO TAKE OFF HE CAN FEEL IT HOLD LONGER THAN IT SHOULD BE HOLDING. VEHICLE HAS BEEN TO 2 DIFFERENT DEALERS, AND THEY SAID IT WAS NORMAL. MANUFACTURER SAID THEY COULD NOT FIND ANYTHING ON IT IN THEIR SEARCH ,A…
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DT: CALLER SAYS REAR DRIVER SIDE WHEEL LOCKS UP UNDER 30 MPH. WHEN CALLER HITS BRAKE HE CAN FEEL IT GRAB. WHEN HE TRIES TO TAKE OFF HE CAN FEEL IT HOLD LONGER THAN IT SHOULD BE HOLDING. VEHICLE HAS BEEN TO 2 DIFFERENT DEALERS, AND THEY SAID IT WAS NORMAL. MANUFACTURER SAID THEY COULD NOT FIND ANYTHING ON IT IN THEIR SEARCH ,AND OFFERED THE CALLER A FREE OIL CHANGE. *AK
NHTSA ODI #10126448
1,000 miles · May 26, 2005
EquipmentService Brakes, Hydraulic
BRAKE FAILURE, 1ST HAPPENED AT 1024 MILES, DEALER RELUCTLEY FIXED IT, HAPPENED AGAIN AT 19.500, DEALER AND GM REFUSED TO FIX.
NHTSA ODI #10122215
1,666 miles · Mar 25, 2005
Air BagsExterior LightingService Brakes, Hydraulic
CHEVROLET CAVALIER Z 2003, MULTIPLE FAILURES. *BF THE DEFROSTER WOULD NOT CLEAR THE WINDOWS, THE HEATER DID NOT WORK, THE AIR BAG LIGHT ILLUMINATED BECAUSE THERE WAS A SPLIT IN THE CENTER OF THE STEERING WHEEL. WHEN THE CONSUMER MADE A RIGHT TURN A NOISE WAS HEARD. THE LEFT REAR TURN SIGNAL BULB WAS REPLACED, THE RIGHT REA…
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CHEVROLET CAVALIER Z 2003, MULTIPLE FAILURES. *BF THE DEFROSTER WOULD NOT CLEAR THE WINDOWS, THE HEATER DID NOT WORK, THE AIR BAG LIGHT ILLUMINATED BECAUSE THERE WAS A SPLIT IN THE CENTER OF THE STEERING WHEEL. WHEN THE CONSUMER MADE A RIGHT TURN A NOISE WAS HEARD. THE LEFT REAR TURN SIGNAL BULB WAS REPLACED, THE RIGHT REAR BRAKE LIGHT BULB. THERE WAS A NOISE COMING FROM THE FRONT OF THE VEHICLE, THE DEALER LUBED THE FRONT SWAY BAR BUSHING. THE TIRES WERE OVER INFLATED, SO THE VEHICLE WOULD SWAY WHEN GOING OVER BUMPS, THE BLOWER MOTOR, AND HEATER CONTROL WAS REPLACED. THE ABS LAMP ILLUMINATED. THE VEHICLE NEEDED BRAKE PADS. THERE WAS MOLD ON THE DRIVERS FRONT DOOR. THE AC COMPRESSOR WAS REPLACED. THE WINDOW WENT DOWN EXTREMELY SLOW, THE DEALER LUBED THE WINDOW TRACK AND REGULATOR. THE FOG LIGHT BULB WAS INOPERATIVE, THE DOOR LATCH WAS INOPERATIVE. *JB
NHTSA ODI #10115838
21,000 miles · Mar 10, 2005
EquipmentExterior LightingFuel System, Gasoline
THERE ARE NUMEROUS THINGS, AND THE DELAERSHIP HAS CONVINCED GM, BECAUSE I WROTE GM ABOUT THE PROBLEMS WITH THIS, THAT I AM MAKING THIS STUFF UP TO GET AN SUV. FIRST THE RADIO WASN'T WORKING, THEY PUT THE CABLE BACK ON SAID IT WAS LOOSE, ITS STILL NOT SOUNDING LIKE A RADIO SHOULD. NEXT WAS THE POPPING IN THE FRONT END, DEALERSH…
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THERE ARE NUMEROUS THINGS, AND THE DELAERSHIP HAS CONVINCED GM, BECAUSE I WROTE GM ABOUT THE PROBLEMS WITH THIS, THAT I AM MAKING THIS STUFF UP TO GET AN SUV. FIRST THE RADIO WASN'T WORKING, THEY PUT THE CABLE BACK ON SAID IT WAS LOOSE, ITS STILL NOT SOUNDING LIKE A RADIO SHOULD. NEXT WAS THE POPPING IN THE FRONT END, DEALERSHIP TURNED ROTORS, UNDER WARRANTY BACK BRAKES SQUEALED REAL LOUD THEY SAID IT WAS DUST I HAD TO PAY FOR THAT. BACK BRAKES STILL SQUEAL, FRONT END STILL POPS LIKE A BAD CV JOINT. TRUNK WOULDN'T SHUT HAD TO KEEP SLAMMING IT. TOOK IT BACK THEY GREASED IT WORKED FOR AWHILE STARTING TO GET HARD TO SHUT SOMETIMES. BRAKE LIGHTS AND BACK LIGHTS AND CRUISE CONTROL QUIT WORKING . TOOK IT TO DEALERSHIP AT LEAST 5 OR 6 TIMES TILL THEY FINALLY REPLACED IT HOW LONG IT WILL LAST I DON'T KNOW. FRONT SUN VISOR POPPED WHEN IT HUNG UP IN REAR VIEW MIRROR REAL FLOPPY CAN'T USE IT NO MORE DEALER SAID THEY ORDERED IT IN DECEMBER. STILL WAITING NOT FIXED. REAL BAD ODOR OF GAS IN CAR WHEN TANK IS HALF FULL, NO EXPLANATION AS TO WHY. SEAT BELT MAKES A FUNNY NOISE WHEN YOU ARE WEARING IT, PINS YOU BACK AGAINST SEAT REAL HARD. NO EXPLANATION FOR THAT. HAVE TO STOP AND JERK ON IT TO LOOSEN IT LIKE A SEAT BELT SHOULD WORK. DEALER SAYS I AM IMAGINING THIS STUFF BECAUSE I DO NOT WANT CAR, BOUGHT IT NEW STILL PAYING FOR IT. BEEN TRYING TO GET RID OF IT THEY HAVE EVERYONE CONVINCED I AM A PSYCHO WOMAN WANTING AN SUV AND THATS WHY I AM COMPLAINING THAT IS ALL FALSE. JUST PLAIN HATE A CAR I AM PAYING FOR.*AK
NHTSA ODI #10113912
NHTSA investigations
4EA07015 · Engine Stalling - Fuel Pump Failure
Opened Nov 1, 2007 · Closed Oct 28, 2008
Status: closed (inferred from source dates) · Fuel System, Gasoline; Fuel System, Gasoline:delivery; Fuel System, Gasoline:delivery:fuel Pump
ODI'S ANALYSIS OF THE STALLING INCIDENTS THAT HAVE RESULTED FROM SUBJECT COMPONENT FAILURES FOUND THAT THEY CAN OCCUR AT ANY SPEED AND GENERALLY RESULT IN A NO RESTART CONDITION.THESE ARE GENERALLY CONSIDERED TO BE FACTORS THAT INCREASE THE POTENTIAL SEVERITY OF STALLING INCIDENTS.HOWEVER, THESE INCIDENTS HAVE OCCURRED AT RELATIVELY LOW RATES IN THE SUBJECT VEHICLE POPULATION WHEN COMPARED WITH PRIOR INVESTIGATIONS INVOLVING SIMILAR CATEGORIES OF ENGINE STALL CONSEQUENCES.EVEN FOR THE EARLY MY 2003 PRODUCTION, WHERE HIGHER FAILURE RATES WERE NOTED, THE RATES OF PUMP FAILURES RESULTING IN ENGINE STALL ARE LOWER THAN RATES RECORDED IN PRIOR INVESTIGATIONS OF POPULATIONS THAT WERE NOT RECALLED.FURTHER INVESTIGATION OF THIS MATTER WOULD NOT BE AN EFFICIENT ALLOCATION OF AGENCY RESOURCES.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 CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AND TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.SEE DOCUMENT FILE FOR MORE INFORMATION ABOUT THIS CLOSING RESUME.
Additional source detail variants (3)
Fuel System, Gasoline:delivery:fuel Pump
ODI'S ANALYSIS OF THE STALLING INCIDENTS THAT HAVE RESULTED FROM SUBJECT COMPONENT FAILURES FOUND THAT THEY CAN OCCUR AT ANY SPEED AND GENERALLY RESULT IN A NO RESTART CONDITION.THESE ARE GENERALLY CONSIDERED TO BE FACTORS THAT INCREASE THE POTENTIAL SEVERITY OF STALLING INCIDENTS.HOWEVER, THESE INCIDENTS HAVE OCCURRED AT RELATIVELY LOW RATES IN THE SUBJECT VEHICLE POPULATION WHEN COMPARED WITH PRIOR INVESTIGATIONS INVOLVING SIMILAR CATEGORIES OF ENGINE STALL CONSEQUENCES.EVEN FOR THE EARLY MY 2003 PRODUCTION, WHERE HIGHER FAILURE RATES WERE NOTED, THE RATES OF PUMP FAILURES RESULTING IN ENGINE STALL ARE LOWER THAN RATES RECORDED IN PRIOR INVESTIGATIONS OF POPULATIONS THAT WERE NOT RECALLED.FURTHER INVESTIGATION OF THIS MATTER WOULD NOT BE AN EFFICIENT ALLOCATION OF AGENCY RESOURCES.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 CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AND TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.SEE DOCUMENT FILE FOR MORE INFORMATION ABOUT THIS CLOSING RESUME.
Fuel System, Gasoline:delivery
ODI'S ANALYSIS OF THE STALLING INCIDENTS THAT HAVE RESULTED FROM SUBJECT COMPONENT FAILURES FOUND THAT THEY CAN OCCUR AT ANY SPEED AND GENERALLY RESULT IN A NO RESTART CONDITION.THESE ARE GENERALLY CONSIDERED TO BE FACTORS THAT INCREASE THE POTENTIAL SEVERITY OF STALLING INCIDENTS.HOWEVER, THESE INCIDENTS HAVE OCCURRED AT RELATIVELY LOW RATES IN THE SUBJECT VEHICLE POPULATION WHEN COMPARED WITH PRIOR INVESTIGATIONS INVOLVING SIMILAR CATEGORIES OF ENGINE STALL CONSEQUENCES.EVEN FOR THE EARLY MY 2003 PRODUCTION, WHERE HIGHER FAILURE RATES WERE NOTED, THE RATES OF PUMP FAILURES RESULTING IN ENGINE STALL ARE LOWER THAN RATES RECORDED IN PRIOR INVESTIGATIONS OF POPULATIONS THAT WERE NOT RECALLED.FURTHER INVESTIGATION OF THIS MATTER WOULD NOT BE AN EFFICIENT ALLOCATION OF AGENCY RESOURCES.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 CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AND TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.SEE DOCUMENT FILE FOR MORE INFORMATION ABOUT THIS CLOSING RESUME.
Fuel System, Gasoline
ODI'S ANALYSIS OF THE STALLING INCIDENTS THAT HAVE RESULTED FROM SUBJECT COMPONENT FAILURES FOUND THAT THEY CAN OCCUR AT ANY SPEED AND GENERALLY RESULT IN A NO RESTART CONDITION.THESE ARE GENERALLY CONSIDERED TO BE FACTORS THAT INCREASE THE POTENTIAL SEVERITY OF STALLING INCIDENTS.HOWEVER, THESE INCIDENTS HAVE OCCURRED AT RELATIVELY LOW RATES IN THE SUBJECT VEHICLE POPULATION WHEN COMPARED WITH PRIOR INVESTIGATIONS INVOLVING SIMILAR CATEGORIES OF ENGINE STALL CONSEQUENCES.EVEN FOR THE EARLY MY 2003 PRODUCTION, WHERE HIGHER FAILURE RATES WERE NOTED, THE RATES OF PUMP FAILURES RESULTING IN ENGINE STALL ARE LOWER THAN RATES RECORDED IN PRIOR INVESTIGATIONS OF POPULATIONS THAT WERE NOT RECALLED.FURTHER INVESTIGATION OF THIS MATTER WOULD NOT BE AN EFFICIENT ALLOCATION OF AGENCY RESOURCES.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 CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AND TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.SEE DOCUMENT FILE FOR MORE INFORMATION ABOUT THIS CLOSING RESUME.
PE07033 · Fuel Pump Failure
Opened Jun 28, 2007 · Closed Nov 1, 2007
Status: closed (inferred from source dates) · Fuel System, Gasoline; Fuel System, Gasoline:delivery; Fuel System, Gasoline:delivery:fuel Pump
AN ENGINEERING ANALYSIS HAS BEEN OPENED TO FURTHER INVESTIGATE THE SCOPE, FREQUENCY AND POTENTIAL SAFETY-RELATED CONSEQUENCES OF THE ALLEGED DEFECT.GENERAL MOTORS (GM) HAS IDENTIFIED AN ISSUE WITH ACCELERATED MOTOR BRUSH WEAR IN THE FUEL PUMP ASSEMBLY OF MODEL YEAR (MY) 2001 THROUGH 2003 CHEVROLET VEHICLES THAT CAN CAUSE THE PUMP TO STOP OPERATING.GENERAL MOTORS INDICATED THAT PEROXIDE OR SULFUR, WHICH ARE BOTH PRESENT IN VARYING AMOUNTS IN GASOLINE, CAN REACT WITH THE COPPER COMMUTATOR OF THE PUMP MOTOR AND CORRODE/ROUGHEN THE SURFACE.A ROUGH COMMUTATOR SURFACE INCREASES THE RATE OF BRUSH WEAR.THE INCREASED ELECTRICAL RESISTANCE CAUSED BY DEGRADATION OF THE BRUSH-COMMUTATOR INTERFACE INHIBITS CURRENT FLOW THROUGH THE MOTOR WINDINGS.ACCORDING TO GM, THE CONDITION WILL USUALLY RESULT IN A NO-START CONDITION BECAUSE OF THE HIGH CURRENT REQUIRED DURING START-UP.WHEN THE ALLEGED DEFECT DOES CAUSE A STALL WHILE DRIVING INCIDENT, THE VEHICLE TYPICALLY CANNOT BE RESTARTED.GM'S ANALYSIS OF WARRANT CLAIMS SHOWED THAT NO START/HARD START WAS THE MOST COMMON CONDITION AND THE FREQUENCY OF CLAIMS ASSOCIATED WITH STALL WHILE DRIVING INCIDENTS WAS TOO LOW TO WARRANT FIELD ACTION. THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA07-015) TO FURTHER ASSESS THE COMPLAINT AND WARRANTY CLAIM DATA AND THE ANALYSES PROVIDED BY GM.
Additional source detail variants (3)
Fuel System, Gasoline:delivery:fuel Pump
AN ENGINEERING ANALYSIS HAS BEEN OPENED TO FURTHER INVESTIGATE THE SCOPE, FREQUENCY AND POTENTIAL SAFETY-RELATED CONSEQUENCES OF THE ALLEGED DEFECT.GENERAL MOTORS (GM) HAS IDENTIFIED AN ISSUE WITH ACCELERATED MOTOR BRUSH WEAR IN THE FUEL PUMP ASSEMBLY OF MODEL YEAR (MY) 2001 THROUGH 2003 CHEVROLET VEHICLES THAT CAN CAUSE THE PUMP TO STOP OPERATING.GENERAL MOTORS INDICATED THAT PEROXIDE OR SULFUR, WHICH ARE BOTH PRESENT IN VARYING AMOUNTS IN GASOLINE, CAN REACT WITH THE COPPER COMMUTATOR OF THE PUMP MOTOR AND CORRODE/ROUGHEN THE SURFACE.A ROUGH COMMUTATOR SURFACE INCREASES THE RATE OF BRUSH WEAR.THE INCREASED ELECTRICAL RESISTANCE CAUSED BY DEGRADATION OF THE BRUSH-COMMUTATOR INTERFACE INHIBITS CURRENT FLOW THROUGH THE MOTOR WINDINGS.ACCORDING TO GM, THE CONDITION WILL USUALLY RESULT IN A NO-START CONDITION BECAUSE OF THE HIGH CURRENT REQUIRED DURING START-UP.WHEN THE ALLEGED DEFECT DOES CAUSE A STALL WHILE DRIVING INCIDENT, THE VEHICLE TYPICALLY CANNOT BE RESTARTED.GM'S ANALYSIS OF WARRANT CLAIMS SHOWED THAT NO START/HARD START WAS THE MOST COMMON CONDITION AND THE FREQUENCY OF CLAIMS ASSOCIATED WITH STALL WHILE DRIVING INCIDENTS WAS TOO LOW TO WARRANT FIELD ACTION. THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA07-015) TO FURTHER ASSESS THE COMPLAINT AND WARRANTY CLAIM DATA AND THE ANALYSES PROVIDED BY GM.
Fuel System, Gasoline:delivery
AN ENGINEERING ANALYSIS HAS BEEN OPENED TO FURTHER INVESTIGATE THE SCOPE, FREQUENCY AND POTENTIAL SAFETY-RELATED CONSEQUENCES OF THE ALLEGED DEFECT.GENERAL MOTORS (GM) HAS IDENTIFIED AN ISSUE WITH ACCELERATED MOTOR BRUSH WEAR IN THE FUEL PUMP ASSEMBLY OF MODEL YEAR (MY) 2001 THROUGH 2003 CHEVROLET VEHICLES THAT CAN CAUSE THE PUMP TO STOP OPERATING.GENERAL MOTORS INDICATED THAT PEROXIDE OR SULFUR, WHICH ARE BOTH PRESENT IN VARYING AMOUNTS IN GASOLINE, CAN REACT WITH THE COPPER COMMUTATOR OF THE PUMP MOTOR AND CORRODE/ROUGHEN THE SURFACE.A ROUGH COMMUTATOR SURFACE INCREASES THE RATE OF BRUSH WEAR.THE INCREASED ELECTRICAL RESISTANCE CAUSED BY DEGRADATION OF THE BRUSH-COMMUTATOR INTERFACE INHIBITS CURRENT FLOW THROUGH THE MOTOR WINDINGS.ACCORDING TO GM, THE CONDITION WILL USUALLY RESULT IN A NO-START CONDITION BECAUSE OF THE HIGH CURRENT REQUIRED DURING START-UP.WHEN THE ALLEGED DEFECT DOES CAUSE A STALL WHILE DRIVING INCIDENT, THE VEHICLE TYPICALLY CANNOT BE RESTARTED.GM'S ANALYSIS OF WARRANT CLAIMS SHOWED THAT NO START/HARD START WAS THE MOST COMMON CONDITION AND THE FREQUENCY OF CLAIMS ASSOCIATED WITH STALL WHILE DRIVING INCIDENTS WAS TOO LOW TO WARRANT FIELD ACTION. THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA07-015) TO FURTHER ASSESS THE COMPLAINT AND WARRANTY CLAIM DATA AND THE ANALYSES PROVIDED BY GM.
Fuel System, Gasoline
AN ENGINEERING ANALYSIS HAS BEEN OPENED TO FURTHER INVESTIGATE THE SCOPE, FREQUENCY AND POTENTIAL SAFETY-RELATED CONSEQUENCES OF THE ALLEGED DEFECT.GENERAL MOTORS (GM) HAS IDENTIFIED AN ISSUE WITH ACCELERATED MOTOR BRUSH WEAR IN THE FUEL PUMP ASSEMBLY OF MODEL YEAR (MY) 2001 THROUGH 2003 CHEVROLET VEHICLES THAT CAN CAUSE THE PUMP TO STOP OPERATING.GENERAL MOTORS INDICATED THAT PEROXIDE OR SULFUR, WHICH ARE BOTH PRESENT IN VARYING AMOUNTS IN GASOLINE, CAN REACT WITH THE COPPER COMMUTATOR OF THE PUMP MOTOR AND CORRODE/ROUGHEN THE SURFACE.A ROUGH COMMUTATOR SURFACE INCREASES THE RATE OF BRUSH WEAR.THE INCREASED ELECTRICAL RESISTANCE CAUSED BY DEGRADATION OF THE BRUSH-COMMUTATOR INTERFACE INHIBITS CURRENT FLOW THROUGH THE MOTOR WINDINGS.ACCORDING TO GM, THE CONDITION WILL USUALLY RESULT IN A NO-START CONDITION BECAUSE OF THE HIGH CURRENT REQUIRED DURING START-UP.WHEN THE ALLEGED DEFECT DOES CAUSE A STALL WHILE DRIVING INCIDENT, THE VEHICLE TYPICALLY CANNOT BE RESTARTED.GM'S ANALYSIS OF WARRANT CLAIMS SHOWED THAT NO START/HARD START WAS THE MOST COMMON CONDITION AND THE FREQUENCY OF CLAIMS ASSOCIATED WITH STALL WHILE DRIVING INCIDENTS WAS TOO LOW TO WARRANT FIELD ACTION. THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA07-015) TO FURTHER ASSESS THE COMPLAINT AND WARRANTY CLAIM DATA AND THE ANALYSES PROVIDED BY GM.
EA04028 · Turn Signal Malfunction
Opened Sep 14, 2004 · Closed Nov 22, 2004
Status: closed (inferred from source dates) · Exterior Lighting:turn Signal
ON MAY 14, 2004 THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION (PE04-043) BASED ON CONSUMER COMPLAINTS ALLEGING THAT THE BRAKE/TAIL TURN SIGNAL LAMPS WOULD NOT OPERATE PROPERLY WHEN EITHER THE TAIL LIGHTS WERE TURNED ON, THE BRAKE PEDAL WAS DEPRESSED, OR WHEN THE TURN SIGNAL SWITCH WAS ACTIVATED.ON SEPTEMBER 14, 2004 ODI UPGRADED PE 04-043 TO AN ENGINEERING ANALYSIS (EA04-028).GM STATES THAT SOME BRAKE/TAIL/TURN SIGNAL LAMP BULBS CAN PREMATURELY BECOME INOPERATIVE DUE TO EXCESSIVE HEAT BUILDUP WITHIN THE BULB SOCKETS.THE CAUSE OF THE EXCESSIVE HEAT BUILD UP WAS DETERMINED TO BE A LACK OF THERMAL GREASE PLACED IN BETWEEN THE BULB AND THE SOCKET. BY LETTER DATED OCTOBER 27, 2004 GM NOTIFIED NHTSA THAT IT WILL CONDUCT A SAFETY RECALL (NHTSA # 04V524) COVERING ALL MY 2003 VEHICLES.GM DEALERS WILL INSPECT THE REAR LAMP BULB SOCKET ASSEMBLIES AND APPLY THERMAL GREASE TO THEM OR REPLACE THEM WITH NEW ASSEMBLIES WITH THERMAL GREASE ALREADY ATTACHED.MODEL YEAR 2004 AND NEWER VEHICLES HAVE THE THERMAL GREASE INSTALLED FROM THE FACTORY. THE ACTION TAKEN BY GM IS SUFFICIENT TO RESOLVE THE ISSUES RAISED BY THIS INVESTIGATION.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.
PE04043 · Turn Signal Malfunction
Opened May 14, 2004 · Closed Sep 14, 2004
Status: closed (inferred from source dates) · Exterior Lighting:turn Signal
COMPLAINANTS ALLEGE THAT THE REAR TURN SIGNALS FAIL TO ILLUMINATE AND DO NOT PROVIDE A SIGNAL TO DRIVERS IN FOLLOWING VEHICLES.ODI HAS RECEIVED ONE REPORT OF A CRASH WHERE THE COMPLAINANT BRAKED AND ATTEMPTED TO MAKE A LEFT TURN AND THE FOLLOWING VEHICLE IMPACTED THE COMPLAINANT'S VEHICLE IN THE DRIVER-SIDE DOOR.IN MAY 2002, GM'S SUPPLIER MADE CHANGES TO THE BULB SOCKET THAT INCLUDED STOPPING THE USE OF THERMAL-MASTIC GREASE IN THE BULB SOCKET.GM REPORTS THAT THE GREASE REDUCES ARCING AT THE CONTACTS AND DISSIPATES HEAT THUS PREVENTING MELTING OF THE SOCKET MATERIAL OR BURNING OF THE CONTACTS.MOST OF THE SUBJECT VEHICLES WERE PRODUCED WITHOUT GREASE APPLIED TO THE BULB SOCKET.IN JUNE 2003, GM DIRECTED THE SUPPLIER TO RESUME THE USE OF GREASE IN THE SOCKET.GM ISSUED TECHNICAL SERVICE BULLETIN (TSB) 04-08-42-004A ON JULY 15, 2004 ADVISING TECHNICIANS TO MAKE SURE THAT ADEQUATE AMOUNTS OF GREASE WERE ADDED TO THE BULB SOCKETS ON ALL SERVICE PARTS.ODI WILL UPGRADE THIS INVESTIGATION TO EA 04-028 TO FURTHER EXAMINE THE ISSUE.
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