NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
14 reportsClear category filterMileage unknown · Apr 2, 2014
Engine And Engine CoolingFuel System, GasolineVehicle Speed Control
DRIVING FROM A SIDE ROAD ONTO THE 505 FREEWAY, VEHICLE CAME TO A STOP ON THE SLOW LANE. WAS TOWED TO A CADILLAC DEALER. 1/6/14. REPLACED LEFT AND RIGHT CATALYTIC CONVERTER. SECOND INCIDENT OCCURRED 1/27/2014. DRIVING ONTO I-80. EXACT PROBLEM OCCURRED AND WAS TOWED TO SAME CADILLAC DEALER. DEALER ADJUSTED THROTTLE BODY. AM CONCE…
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DRIVING FROM A SIDE ROAD ONTO THE 505 FREEWAY, VEHICLE CAME TO A STOP ON THE SLOW LANE. WAS TOWED TO A CADILLAC DEALER. 1/6/14. REPLACED LEFT AND RIGHT CATALYTIC CONVERTER. SECOND INCIDENT OCCURRED 1/27/2014. DRIVING ONTO I-80. EXACT PROBLEM OCCURRED AND WAS TOWED TO SAME CADILLAC DEALER. DEALER ADJUSTED THROTTLE BODY. AM CONCERNED IF PROBLEM HAS BEEN RESOLVED.. *TR
NHTSA ODI #10576866
62,000 miles · Apr 27, 2012
Engine And Engine Cooling
TL* THE CONTACT OWNS A 2005 CADILLAC CTS. THE CONTACT STATED THAT THE OIL WAS LEAKING FROM AN UNKNOWN SOURCE AND THE CONTACT COULD NOT VISIBLY LOCATE A LEAK. THE CONTACT WAS DRIVING 60 MPH WHEN THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS TOWED TO THE DEALER WHO RAN A DIAGNOSTIC TEST AND ADVISED THAT THE CONNECTING ROD W…
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TL* THE CONTACT OWNS A 2005 CADILLAC CTS. THE CONTACT STATED THAT THE OIL WAS LEAKING FROM AN UNKNOWN SOURCE AND THE CONTACT COULD NOT VISIBLY LOCATE A LEAK. THE CONTACT WAS DRIVING 60 MPH WHEN THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS TOWED TO THE DEALER WHO RAN A DIAGNOSTIC TEST AND ADVISED THAT THE CONNECTING ROD WAS FRACTURED. IN ADDITION, THERE WERE TWO HOLES IN THE ENGINE BLOCK AND NO OIL IN THE ENGINE. THE DEALER INFORMED THE CONTACT THAT HE WOULD HAVE TO REPLACE THE ENGINE AT A COST OF $6000. THE MANUFACTURER WAS NOTIFIED WHO FILED A CLAIM ON BEHALF OF THE CONTACT. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 62,000.
NHTSA ODI #10456712
75,000 miles · Feb 15, 2012
Engine And Engine Cooling
THIS CAR HAS HAD SEVERAL ISSUES THE NEWEST BEING IT STARTED USING EXCESSIVE OIL JUST AFTER THE MAIN COMPUTER WAS REPLACED. THIS CAR HAS HAD REGULAR MAINTENANCE AT THE PROPER TIMES AND NEVER USED A DROP OF OIL. WHEN IT STARTED USING OIL IT USED FIVE LITERS OF OIL IN JUST 24 DAYS OR 2000 MILES. IT CONTINUES TO USE A LITER EVERY TW…
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THIS CAR HAS HAD SEVERAL ISSUES THE NEWEST BEING IT STARTED USING EXCESSIVE OIL JUST AFTER THE MAIN COMPUTER WAS REPLACED. THIS CAR HAS HAD REGULAR MAINTENANCE AT THE PROPER TIMES AND NEVER USED A DROP OF OIL. WHEN IT STARTED USING OIL IT USED FIVE LITERS OF OIL IN JUST 24 DAYS OR 2000 MILES. IT CONTINUES TO USE A LITER EVERY TWO DAYS. DEALER HAS KNOW IDEA WHY THIS IS HAPPENING BUT THE CAR IS BURNING IT, THE WHITE EXHAUST IS VERY EVIDENT. *TR
NHTSA ODI #10448113
70,000 miles · Jan 11, 2012
Engine And Engine CoolingFire
TL* THE CONTACT OWNS A 2005 CADILLAC CTS. THE CONTACT STATED THAT THE INTERIOR OF THE VEHICLE CAUGHT ON FIRE AFTER BEING PARKED AND SHUT OFF FOR A FEW MINUTES. THE CONTACT ALSO STATED THAT PRIOR TO THE FAILURE, HE SMELLED AN UNUSUAL CHEMICAL ODOR WITHIN THE VEHICLE. ANOTHER INDIVIDUAL ASSISTED WITH EXTINGUISHING THE FIRE. THE CO…
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TL* THE CONTACT OWNS A 2005 CADILLAC CTS. THE CONTACT STATED THAT THE INTERIOR OF THE VEHICLE CAUGHT ON FIRE AFTER BEING PARKED AND SHUT OFF FOR A FEW MINUTES. THE CONTACT ALSO STATED THAT PRIOR TO THE FAILURE, HE SMELLED AN UNUSUAL CHEMICAL ODOR WITHIN THE VEHICLE. ANOTHER INDIVIDUAL ASSISTED WITH EXTINGUISHING THE FIRE. THE CONTACT STATED THAT THE FIRE ORIGINATED NEAR THE DASHBOARD AREA. THE VEHICLE WAS THEN TOWED TO AN AUTHORIZED DEALER, WHERE IT WAS AWAITING A DIAGNOSIS. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE AND CURRENT MILEAGES WERE 70,000.
NHTSA ODI #10443472
63,000 miles · Feb 23, 2011
Air BagsEngine And Engine CoolingPower Train
I HAVE A 2005 CADILLAC CTS WITH 67,000 MILES. SINCE ABOUT 65,000 MILES CAR HAS BEEN MAKING A RATTLING SOUND UNDER THE HOOD DURING ACCELERATION. I HAVE GIVEN THE CAR A TUNE UP, OIL CHANGE AND THE CAR HAS OTHER FLUIDS ARE AT LEVEL. ONCE MY CAR HAS ACCELERATED AND THE GEARS HAVE CHANGED (I.E, SECOND GEAR) THE RATTLING SOUNDS STOPS.…
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I HAVE A 2005 CADILLAC CTS WITH 67,000 MILES. SINCE ABOUT 65,000 MILES CAR HAS BEEN MAKING A RATTLING SOUND UNDER THE HOOD DURING ACCELERATION. I HAVE GIVEN THE CAR A TUNE UP, OIL CHANGE AND THE CAR HAS OTHER FLUIDS ARE AT LEVEL. ONCE MY CAR HAS ACCELERATED AND THE GEARS HAVE CHANGED (I.E, SECOND GEAR) THE RATTLING SOUNDS STOPS..THE NOISE IS CONTINUOUS AND ONLY HAPPENS AT ACCELERATION, NOT WHILE IDLING. IN ADDITION EVERY NOW AND AGAIN WHEN A FRONT SEAT PASSENGER GETS IN THE CAR THE AIRBAG SENSOR/LIGHT COMES ON THE DASHBOARD. THIS PROBLEM DOESN'T HAPPEN OFTEN BUT IT HAPPENS EVERY ONCE IN A WHILE. UPON DOING MY RESEARCH FOR BOTH THESE ISSUES I FIND THAT I AM NOT THE ONLY ONE HAVING THIS PROBLEM...HOPEFULLY SOMETHING WILL BE DONE SO THAT GM CAN ADDRESS THESE SERIOUS ISSUES WITHOUT HAVING THE CONSUMER/OWNERS HAVING TO PAY AN ARM AND A LEG. *TR
NHTSA ODI #10384094
63,200 miles · Nov 15, 2010
Air BagsEngine And Engine Cooling
MY 2005 CADILLAC CTS JUST HIT 63,000 MILES STARTED TO HEAR A CHATTER UNDER THE HOOD WENT TO GO GET A DIAGNOSIS AND SAID TIMING CHAIN AND CRANKSHAFT BALANCER NEED TO BE REPLACED. ANOTHER ISSUE IS THE AIRBAG BAG SENSOR WENT BAD CAUSING THE AIRBAG LIGHT TO KEEP POPPING UP ON DISPLAY AND NOW NEEDS REPLACED. I'M HOPING WE GET ENOUGH …
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MY 2005 CADILLAC CTS JUST HIT 63,000 MILES STARTED TO HEAR A CHATTER UNDER THE HOOD WENT TO GO GET A DIAGNOSIS AND SAID TIMING CHAIN AND CRANKSHAFT BALANCER NEED TO BE REPLACED. ANOTHER ISSUE IS THE AIRBAG BAG SENSOR WENT BAD CAUSING THE AIRBAG LIGHT TO KEEP POPPING UP ON DISPLAY AND NOW NEEDS REPLACED. I'M HOPING WE GET ENOUGH PEOPLE THAT HAVE THESE PROBLEMS FILE A COMPLAINT IN ORDER TO GET A RECALL. *TR
NHTSA ODI #10365815
80,000 miles · Sep 10, 2010
Engine And Engine Cooling
THIS COMPLAINT IS PERTAINING TO THE 2005 CADILLAC CTS 3.6L V6. THE PROBLEM PERTAINS TO THE TIMING CHAIN FAILURE OF SAID CAR AT AROUND 80,000 MILES. HAVING DONE RESEARCH ON THE INTERNET I HAVE COME ACROSS MANY OWNERS WITH THE EXACT SAME PROBLEMS SPANNING THE 2004-2007 MODEL YEARS, WITH COMMON FAILURE RATES SPANNING 20,000, TO 80,…
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THIS COMPLAINT IS PERTAINING TO THE 2005 CADILLAC CTS 3.6L V6. THE PROBLEM PERTAINS TO THE TIMING CHAIN FAILURE OF SAID CAR AT AROUND 80,000 MILES. HAVING DONE RESEARCH ON THE INTERNET I HAVE COME ACROSS MANY OWNERS WITH THE EXACT SAME PROBLEMS SPANNING THE 2004-2007 MODEL YEARS, WITH COMMON FAILURE RATES SPANNING 20,000, TO 80,000 MILES. THIS HAS COST ME PERSONALLY OVER $1,000 IN PARTS PLUS MY OWN LABOR. IT HAS ALSO COME TO MY ATTENTION THAT GM HAS ISSUED MULTIPLE TSB REPORTS PERTAINING TO THIS PROBLEM BUT WILL HOWEVER NOT ACKNOWLEDGE AFFECTED CUSTOMERS. THE COMPANY STILL INSIST THAT THIS VEHICLE(SPECIFIC ENGINE) IS SERVICE FREE UP TO 100,000 MILES, AND MAKES NO RECOMMENDATIONS FOR OTHER THAT ROUTINE SERVICE (OIL & FILTER). THIS BEING SAID I AM REQUESTING THAT THE NHTSA PERFORM AN INQUIRY IN THE FREQUENCY OF THESE PROBLEM AND ENCOURAGES GM TO ACKNOWLEDGE AND COMPENSATE CUSTOMERS ACCORDINGLY. *TR
NHTSA ODI #10354870
4,100 miles · Aug 11, 2010
Engine And Engine Cooling
TL*THE CONTACT OWNS A 2005 CADILLAC CTS. WHILE DRIVING 40 MPH, ALL OF THE SAFETY LIGHTS ON THE DASHBOARD ILLUMINATED WHEN THE VEHICLE STALLED. THE VEHICLE WAS TURNED BACK ON IT BEGAN TO FUNCTION NORMALLY. THE FAILURE OCCURRED TWICE. THE DEALER WAS CONTACTED AND THEY STATED THAT SHE NEEDED TO BRING IT IN TO HAVE IT DIAGNOSED AGAI…
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TL*THE CONTACT OWNS A 2005 CADILLAC CTS. WHILE DRIVING 40 MPH, ALL OF THE SAFETY LIGHTS ON THE DASHBOARD ILLUMINATED WHEN THE VEHICLE STALLED. THE VEHICLE WAS TURNED BACK ON IT BEGAN TO FUNCTION NORMALLY. THE FAILURE OCCURRED TWICE. THE DEALER WAS CONTACTED AND THEY STATED THAT SHE NEEDED TO BRING IT IN TO HAVE IT DIAGNOSED AGAIN. THE DEALER PREVIOUSLY STATED THAT THEY WERE UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 4100 AND THE CURRENT MILEAGE WAS 58,000.
NHTSA ODI #10348743
Mileage unknown · Jun 23, 2010
Electrical SystemEngine And Engine CoolingFireInjury
2005 CADILLAC CTS. LETTER SENT FROM AN ATTORNEY ON BEHALF OF THE CONSUMERS IN REFERENCE TO AN ACCIDENT RELATING TO A POTENTIAL DEFECT IN VEHICLE *TGW WHILE DRIVING, THE VEHICLE BEGAN TO SMOKE. WHEN THE CONSUMER OPENED THE HOOD HE SUFFERED SERIOUS BURNS WHICH LEFT HIM PERMANENTLY DISFIGURED. THE VEHICLE WAS TOTALED. *JB
NHTSA ODI #10340032
75,500 miles · Jul 4, 2008
Engine And Engine Cooling
ENGINE OIL CONSUMPTION 2005 CADI CTS. BOUGHT THE CAR WITH 75K MILES. 3 MONTHS LATER AND 3800 MILES.. NO OIL, NO OIL LIGHT CAME ON. ENGINE DAMAGED. DEALER BLOOSOM CHEVROLET SAID ENGINE REPLACEMENT WAS ALL ON ME. THEN LATER CAME BACK AND SAID DGM WAS PAYING 1/3 AND THE DEALERSHIP WOULD PAY 1/3 AND 1/3 WAS ON ME. I HAVE FOUND…
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ENGINE OIL CONSUMPTION 2005 CADI CTS. BOUGHT THE CAR WITH 75K MILES. 3 MONTHS LATER AND 3800 MILES.. NO OIL, NO OIL LIGHT CAME ON. ENGINE DAMAGED. DEALER BLOOSOM CHEVROLET SAID ENGINE REPLACEMENT WAS ALL ON ME. THEN LATER CAME BACK AND SAID DGM WAS PAYING 1/3 AND THE DEALERSHIP WOULD PAY 1/3 AND 1/3 WAS ON ME. I HAVE FOUND REPORTS THAT OIL CONSUMPTION IS A PROBLEM WITH THIS TYPE OF CAR. *TR
NHTSA ODI #10233180
Official recalls
6Sep 9, 2014
General Motors LLC (GM) is recalling certain model year 2004-2007 Cadillac CTS-V vehicles manufactured October 6, 2003, to March 15, 2007, and 2006-2007 Cadillac STS-V vehicles manufactured June 23, 2005, to March 15, 2007. In the affected vehicles, the electrical terminals of the fuel pump module may overheat resulting in the melting of the flange material.
Consequence & remedy
Consequence: If the flange melts, a hole may be created allowing the fuel pump to leak fuel, causing the vehicle to stall, increasing the risk of a vehicle crash. Additionally, leaking fuel in the presence of an ignition source increases the risk of a fire.
Remedy: GM will notify owners, and dealers will replace the fuel module and fuel tank jumper harness, free of charge. GM sent out interim notices in late October. The recall began on March 12, 2015. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is 14405.
Jul 2, 2014
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) notified the agency on July 2, 2014 that they are recalling 554,328 model year 2003-2014 Cadillac CTS vehicles manufactured August 16, 2001, to April 28, 2014, and 2004-2006 Cadillac SRX vehicles manufactured March 20, 2003, to August 11, 2006. In these models, the weight on the key ring and/or road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.
Consequence & remedy
Consequence: If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury.
Remedy: GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cover over the key head on all ignition keys, free of charge. The recall began on September 15, 2014. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is 14172.
Dec 17, 2010
GENERAL MOTORS IS RECALLING CERTAIN MODEL YEAR 2005-2007 CADILLAC CTS VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH REPEATED FLEXING OF THE PASSENGER SENSING SYSTEM MAT IN THE FRONT PASSENGER SEAT MAY CAUSE THE MAT TO KINK, BEND, OR FOLD. THIS FLEXING CAN BREAK THE CONNECTIONS IN THE MAT. IF THIS OCCURS, THE SENSOR MAY NOT DETECT THE PRESENCE OF A FRONT SEAT PASSENGER AND WILL DISABLE THE AIR BAG.
Consequence & remedy
Consequence: NON-DEPLOYMENT OF THE FRONT PASSENGER AIR BAG IN THE EVENT OF A CRASH NECESSITATING THAT AIR BAG'S DEPLOYMENT MAY REDUCE PROTECTION OF THE PASSENGER AND INCREASE THE RISK OR SEVERITY OF INJURY TO THEM.
Remedy: DEALERS WILL REPLACE THE PASSENGER SENSING SYSTEM FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN ON OR ABOUT MARCH 15, 2011. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463 AND AT THE OWNER CENTER AT WWW.GMOWNERCENTER.COM.
Mar 17, 2010
GENERAL MOTORS HAS NOTIFIED NHTSA OF A DEFECT IN CERTAIN MODEL YEAR 2003-2007 CADILLAC CTS VEHICLES CURRENTLY REGISTERED IN OR ORIGINALLY SOLD IN CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WASHINGTON D.C., WEST VIRGINIA AND WISCONSIN. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE FRONT BRAKE HOSE FITTING AT THE CALIPER MAY CORRODE DUE TO SNOW OR WATER, CONTAINING ROAD SALT OR OTHER CONTAMINANTS, ENTERING AND BEING RETAINED IN THE ROUTING SLEEVE. IF THE FITTING CORRODES SIGNIFICANTLY, THE BRAKE HOSE-TUBE INTERFACE MAY DEVELOP A LEAK.
Consequence & remedy
Consequence: THE BRAKE HOSE-TUBE INTERFACE MAY RUPTURE SUDDENLY WITHOUT PRIOR WARNING AND INCREASE VEHICLE STOPPING DISTANCE MAY OCCUR INCREASING THE RISK OF A CRASH.
Remedy: DEALERS ARE TO REPLACE BOTH FRONT BRAKE HOSE ASSEMBLIES FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN DURING MAY 2010. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339 OR AT THE OWNER CENTER AT WWW.GMOWNERCENTER.COM.
Dec 20, 2007
ON CERTAIN PASSENGER VEHICLES, THE REAR AXLE PINION SEAL DOES NOT MEET ALL OF THE SPECIFICATIONS AND MAY EXPERIENCE A FLUID LEAK.
Consequence & remedy
Consequence: A REAR DIFFERENTIAL FAILURE MAY CAUSE LOSS OF MOTIVE POWER AND POSSIBLY LOSS OF CONTROL INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE PINION SEAL FREE OF CHARGE. THE RECALL BEGAN ON FEBRUARY 1, 2008. OWNERS MAY CONTACT CADILLAC AT 1-800-458-8006 OR HTTP://WWW.CADILLAC.COM; PONTIAC AT 1-800-620-7668 OR HTTP://WWW.PONTIAC.COM; AND SATURN AT 1-800-972-8876 OR HTTP://WWW.SATURN.COM.
Jan 25, 2006
CERTAIN VEHICLES EQUIPPED WITH V6 ENGINES MAY HAVE A CONDITION WHERE FUEL IS NO LONGER SUPPLIED TO THE ENGINE. THIS CONDITION OCCURS WITHOUT THE ILLUMINATION OF THE FUEL LEVEL LOW INDICATOR LIGHT OR THE WARNING CHIME.
Consequence & remedy
Consequence: IF THE ENGINE STOPS RUNNING, THE OPERATOR WILL NOT BE ABLE TO RESTART THE VEHICLE WHICH COULD INCREASE THE RISK OF A CRASH.
Remedy: DEALERS WILL REPROGRAM THE ELECTRONIC CONTROL MODULE (ECM) WITH NEW SOFTWARE FREE OF CHARGE. OWNERS WERE NOTIFIED IN DECEMBER 2005 AND ASKED TO MAINTAIN AT LEAST 1/4 OF A TANK FUEL LEVEL TO AVOID THIS CONDITION UNTIL THE PARTS ARE AVAILABLE. THE PARTS ARE NOW AVAILABLE, OWNER RENOTIFICATION BEGAN ON MARCH 23, 2006. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339.
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
3EQ11001 · Iee Passenger Sensing System Mats
Opened Feb 7, 2011 · Closed Jul 19, 2011
Status: closed (inferred from source dates) · Air Bags:frontal:sensor/control MODULE-INACTIVE
On December 17, 2010, General Motors (GM) notified the NHTSA that it had decided certain 2005 - 2007 model year Cadillac CTS vehicles contain a safety related defect.GM stated that certain CTS vehicles contain a passenger sensing system mat, manufactured by IEE, in the front passenger seat that may flex causing the mat to kink, bend or fold.If this flexing causes the connections in the mat to break, the passenger airbag could become disabled.Non-deployment of the front passenger air bag in the event of a crash necessitating that air bag's deployment may reduce protection of the passenger and increase the risk or severity of injury to them.This issue was assigned recall number 10V-644.On February 8, 2011, RMD mailed an information request (IR) letter to IEE requesting a list of purchasers for any company that was sold the same or similar defective mats.RMD also requested IEE supply the year, make and models of compatible vehicles for each of the mats it listed in its response.IEE responded on February 15, 2011, reporting that the mats recalled in GM recall 10V-644 were developed specifically for the 2005-2007 Cadillac CTS.IEE noted that, ...the CTS Sensor Mat is not the same or similar to any other sensor mat manufactured by IEE.IEE further explained that the sensor mats were sold to Lear Corp. (Lear), for incorporation into seat assemblies, with the seat assemblies finally being sold to GM.Also, some sensor mats were sold to Integrated Manufacturing and Assembly, LLC (IMA) who would then re-sell the mats to GM to use as service parts.Ultimately, these parts were all sold to GM for use in the 2005-2007 Cadillac CTS vehicles.According to its 10V-644 Defect Report, GM reported that some vehicles outside the recall population have ...significantly lower incident rates and will be provided a special coverage.This special coverage includes a free repair should the same issue occur to non-recalled 2005-2007 Cadillac CTS vehicles up to 10 years or 120,000 miles.On April 7, 2011, RMD mailed an IR letter to GM to gather more information on GM's decision to only recall a portion of the vehicles that contained the subject IEE mats.RMD also requested that GM provide updated to current warranty claims, field reports, and other field information for CTS vehicles both recalled and those under the special coverage.On May 19, 2011, GM responded with a letter and several CD attachments that were submitted to NHTSA's Office of the Chief Counsel along with a request for confidentiality.GM confirmed that the IEE mats recalled in 10V-644 were only used in the 2005-2007 Cadillac CTS.GM also explained its reasoning in only recalling a portion of the CTS vehicles containing IEE mats.Due to various production phases, error detections, and false corrections, certain vehicles were more prone to mat failures than other vehicles.GM identified 4 distinct seat assembly production periods and chose to recall CTS vehicles depending on which seat assembly each vehicle received.Examining the data submitted in regards to warranty claims, field reports, and incidents, the CTS vehicles that were included in the safety recall were responsible for about 80% of the overall claims.CTS vehicles included in the special coverage (essentially an extended warranty), those with seat assemblies from other identified production phases, were responsible for about 20% of the overall claims.As GM has provided clear data to support its recall decision and since no other manufacturer has installed these same or similar passenger sensing system mats / seat assemblies in their vehicles, this Equipment Query is satisfied.This EQ is cl
EA07017 · Rear Drivetrain Component Failure
Opened Dec 7, 2007 · Closed Jul 16, 2008
Status: closed (inferred from source dates) · Power Train:driveline:differential Unit
IN JULY OF 2007 THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED PE07-037 TO INVESTIGATE ALLEGATIONS THAT THE REAR DIFFERENTIAL MAY FAIL CAUSING A LOSS OF MOTIVE POWER, AND IN SOME INSTANCES A LOSS OF CONTROL, IN MODEL YEAR (MY) 2004 THROUGH 2006 CADILLAC CTS, CTS-V, AND STS VEHICLES.AS A RESULT OF THAT INVESTIGATION GM ISSUED RECALL 07V-589 TO CORRECT A LEAKING PINION SEAL PROBLEM.EA07-017 WAS OPENED TO INVESTIGATE COMPLAINTS OF FRACTURED REAR DIFFERENTIAL HOUSINGS OR REAR HALF SHAFTS IN HIGH PERFORMANCE CADILLAC CTS-V VEHICLES.ACCORDING TO GM, THESE FAILURES RESULTED FROM THE CUMULATIVE DAMAGE FROM MULTIPLE POWER HOP EVENTS THAT CAN OCCUR DURING VERY AGGRESSIVE DRIVING. IN FEBRUARY 2008 INVESTIGATORS FROM ODI MET WITH GM REPRESENTATIVES TO CONDUCT TESTING OF THE SUBJECT CTS-V VEHICLES.DURING THE TESTING THE SUBJECT VEHICLES WERE SUBJECTED TO CONSIDERABLE TORSIONAL FORCES FROM STANDING STARTS AND WHILE DRIVING.POWER HOP OCCURRED DURING SOME OF THE MOST AGGRESSIVE DRIVING MANEUVERS.THE TESTING DID NOT RESULT IN FAILURE OF ANY REAR DRIVETRAIN COMPONENTS.THE ENGINEERING DESIGN AND TESTING DATA SUPPLIED TO ODI BY GM AND THE RESULTS OF THE TESTING CONDUCTED BY ODI TEND TO SUPPORT GM'S POSITION THAT THE DIFFERENTIAL DESIGN IS NOT DEFECTIVE. COMPLAINTS LISTED IN THE FAILURE REPORT DO NOT INCLUDE THOSE INDICATIVE OF FAILURE OF THE REAR PINION SEAL IN CTS-V VEHICLES COVERED BY RECALL 07V-589. FURTHER INVESTIGATION IN THIS MATTER WOULD NOT BE AN EFFICIENT ALLOCATION OF AGENCY RESOURCES.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.SEE ATTACHED CLOSING REPORT FOR FURTHER DETAILS.
PE07037 · Failure Of The Rear Differential
Opened Jul 17, 2007 · Closed Dec 27, 2007
Status: closed (inferred from source dates) · Power Train:driveline:differential Unit
ODI EVALUATED TWO DIFFERENT ALLEGED DEFECTS INVOLVING REAR DRIVETRAIN COMPONENTS DURING THIS PRELIMINARY EVALUATION.GM IS CONDUCTING A RECALL TO ADDRESS ONE OF THE DEFECT CONDITIONS AND ODI HAS OPENED AN ENGINEERING ANALYSIS TO CONTINUE ITS INVESTIGATION OF THE OTHER ALLEGED DEFECT. ON DECEMBER 19, 2007, GM SUBMITTED A DEFECT INFORMATION REPORT TO NHTSA CONCERNING DEFECTIVE REAR AXLE PINION SEALS IN APPROXIMATELY 275,936 MODEL YEAR (MY) 2005-07 CADILLAC CTS, STS AND SRX VEHICLES AS WELL AS MY 2006-07 PONTIAC SOLSTICE AND MY 2007 SATURN SKY VEHICLES (RECALL 07V-589).ON STS AND SRX VEHICLES WITH ALL WHEEL DRIVE, THE FRONT AXLE PINION SEAL ALSO DOES NOT MEET ALL OF GM'S SPECIFICATIONS AND MAY EXPERIENCE A FLUID LEAK.GM INDICATED THAT THE SEAL SUPPLIER MADE AN UNAUTHORIZED CHANGE TO THE PINION SEAL MATERIAL.LEAKING PINION SEALS COULD RESULT IN LOSS OF REAR DIFFERENTIAL LUBRICATION WHICH COULD RESULT IN REAR WHEEL LOCK-UP AND LOSS OF VEHICLE CONTROL. ON DECEMBER 7, 2007, ODI OPENED AN ENGINEERING ANALYSIS (EA07-017) TO INVESTIGATE COMPLAINTS OF REAR DRIVETRAIN COMPONENT FAILURE (E.G., FRACTURED REAR DIFFERENTIAL CARRIER HOUSING OR REAR AXLE HALF SHAFTS) WHILE DRIVING IN APPROXIMATELY 7,600 MY 2004 THROUGH 2006 CADILLAC CTS-V VEHICLES.THIS CONDITION MAY RESULT IN A LOSS OF MOTIVE POWER AND VEHICLE DISABLEMENT AND IS NOT ADDRESSED BY RECALL 07V-589.ODI IDENTIFIED 35 COMPLAINTS (16 TO ODI AND 19 TO GM) AND 128 WARRANTY CLAIMS POTENTIALLY RELATED TO THIS CONDITION (SEE EA07-017 OPENING RESUME).THESE COMPLAINTS ARE NOT INCLUDED IN THE FAILURE REPORT SUMMARY OF THIS CLOSING RESUME. THE COMPLAINTS AND WARRANTY FIGURES GIVEN IN THIS RESUME ARE LIMITED TO THOSE THAT (A) ARE MOST LIKELY CAUSED BY A LEAKING REAR PINION SEAL; AND (B) RESULTED IN AN ALLEGATION OF A REAR DIFFERENTIAL FAILURE WHILE DRIVING.THE DATA DO NOT INCLUDE ALL REPORTS OF SEAL LEAKAGE.
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