RoadVitals

2003 Cadillac CTS Powertrain (other) Problems

Owner-reported complaints naming the powertrain system, filed with NHTSA

Data refreshed

Powertrain (other) reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
18
Latest Apr 29, 2019
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
6%
of 313 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
1
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials. Every record below is an owner-reported complaint about the 2003 Cadillac CTS submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 18 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming powertrain

Shown in the owner’s own words, exactly as filed

Powertrain (other)
Filed Apr 29, 2019

TL* THE CONTACT OWNS A 2003 CADILLAC CTS. THE CONTACT STATED THAT THE TRANSMISSION ASSEMBLY MADE AN ABNORMAL SOUND AND THE GEARS SLIPPED WITHOUT WARNING. MARTIN BUICK GMC (12101 W OLYMPIC BLVD, LOS ANGELES, CA 90064, (310) 622-9334) WAS UNABLE TO PROVIDE A PERMANENT REMEDY; THEREFORE, THE FAILURE CONTINUED. THE VEHICLE WAS NOT REPAIRED AFTER SEVERAL EXTENSIVE REPAIRS FROM THE DEALER. THE CONTACT WAS PROVIDED WITH A LOANER VEHICLE FOR MORE THAN THREE MONTHS. THE DEALER RETURNED THE VEHICLE TO THE CONTACT WITHOUT IT BEING REPAIRED. THE VEHICLE WAS UNABLE TO BE DRIVEN SAFELY. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND THE CASE MANAGER WAS TO FOLLOW-UP WITH THE DEALER AND OWNER TO DETERMINE IF THERE WERE GUIDELINES FOR A REPAIR. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 59,000.

NHTSA ID
11204352
Incident
Jun 1, 2018
Mileage
59,000 mi
EnginePowertrain (other)
Filed Feb 15, 2015

THE PCV VALVE SYSTEM DESIGN IS DEFECTIVE. ON (4) OCCASIONS THE PRESSURE BUILD-UP CAUSING MASSIVE OIL LEAKS AT THE VALVE COVER. I EXPERIENCED SMOKE FROM THE ENGINE COMPARTMENT AS OIL LEAKED ONTO A HOT ENGINE. A POTENTIAL ENGINE FIRE. IT TOOK YEARS FOR THE CADILLAC DEALERS TO CORRECT THE PROBLEM. THIS IS A EXTREME COLD WEATHER ISSUE. THE AUTOMOBILE WAS IN ARIZONA FOR A FEW YEARS AND THE ISSUE WAS NOT A PROBLEM BUT ONCE RETURNED TO MICHIGAN, THE PROBLEM GOT SERIOUS. I HAVE ALL OF MY REPAIR DOCUMENTS. THIS CAR SHOULD HAS BEEN RECALLED. IT IS NOT SAFE TO DRIVE. I WAS LUCKY AS I WAS NEAR DEALERS WHEN THIS OCCURRED. *TR

NHTSA ID
10683560
Incident
Jan 24, 2013
Mileage
104,492 mi
Powertrain (other)
Filed Jan 13, 2015

TL* THE CONTACT OWNS A 2003 CADILLAC CTS. WHILE DRIVING 30 MPH, THE VEHICLE JERKED WITHOUT WARNING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 65,000. UPDATED 2/24/15*CN UPDATED 9/15/2017*CN

NHTSA ID
10672259
Incident
Jan 6, 2015
Mileage
65,000 mi
AirbagsDriver assistancePowertrain (other)
Filed Sep 23, 2014
Crash reported

TL* THE CONTACT OWNS A 2003 CADILLAC CTS. WHILE PARKED, THE VEHICLE ACCELERATED INDEPENDENTLY AND CRASHED INTO A DUMPSTER. THE AIR BAGS FAILED TO DEPLOY. A POLICE REPORT WAS NOT FILED AND THERE WERE NO INJURIES REPORTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.

NHTSA ID
10638324
Incident
Aug 12, 2013
Driver assistancePowertrain (other)
Filed Aug 18, 2014

DRIVING DOWN ROAD IT JUST CUT OFF OTHER TIMES IT JUST WOULD NOT START I HAVE HAD IT 3YRS AND ONLY GOT TO DRIVE IT 2 MTHS I REALLY WANTED THIS CAR BUT NEVER KNEW WHAT WAS GOING TO HAPPEN!ALSO SOME KIND OF SEAL WE HAD FIXED BLEW MAYBE A WEEK AFTER IT WAS FIXED. *TR

NHTSA ID
10626124
Incident
Mar 5, 2012
Mileage
92,000 mi
EnginePowertrain (other)
Filed May 29, 2014

TL* THE CONTACT OWNS A 2003 CADILLAC CTS. THE CONTACT STATED THAT WHILE DRIVING 60 MPH, THE ENGINE LOW POWER WARNING LIGHT ILLUMINATED AS THE ENGINE STALLED. THE CONTACT WAS ABLE TO RESTART THE VEHICLE, BUT THE ENGINE LOSS POWER WARNING LIGHT REMAINED ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER, WHO REPLACED THE THROTTLE BODY ASSEMBLY. THE VEHICLE WAS REPAIRED. IN ADDITION, THE CONTACT STATED THAT FOUR YEARS AFTER THE REPAIR THE VEHICLE WOULD NOT START AT THE FIRST ATTEMPT. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 72,579. UPDATED 8/12/14*CN UPDATED 08/20/2014 *JS

NHTSA ID
10594865
Incident
May 11, 2010
Mileage
72,579 mi
BrakesDriver assistanceEngine+3 more
Filed Dec 6, 2011

2003 CADILAC CTS. CONSUMER WRITES IN REGARDS TO PROBLEMS WITH BRAKE SYSTEM *TGW THE CONSUMER STATED THE METAL BRAKE LINE HAD TO BE REPLACED, DUE TO SEVERE CORROSION. THE CONSUMER STATED HE RECEIVED A RECALL LETTER TWO DAYS LATER. ALSO, THE STRUTS, THREE WHEEL BEARINGS, RADIATOR, TRANSMISSION COOLER LINE ALSO HAD TO BE REPLACED DUE TO CORROSION. THE CRUISE CONTROL AND GAS TANK, WHICH WAS LEAKING HAD TO REPLACED. *JB

NHTSA ID
10438430
Incident
Dec 1, 2011
Powertrain (other)
Filed May 19, 2009

REAR DIFFERENTIAL WHINE ON MY 2003 CADILLAC CTS. THE SLIGHTEST PRESSURE UNDER LIGHT ACCELERATION CAUSES THE WHINE. DEALERS ARE USELESS. *TR

NHTSA ID
10269327
Incident
Jun 1, 2004
Mileage
25,000 mi
Powertrain (other)
Filed Apr 26, 2009

WHINING DIFFERENTIAL. *TR

NHTSA ID
10266727
Incident
Apr 25, 2009
Mileage
90,000 mi
Powertrain (other)
Filed Oct 9, 2007

INNER DIFFERENTIAL BEARING NOISES ARE GETTING PROGRESSIVELY WORSE. WITH SO MANY COMPLAINTS WHY IS THE COST TO REPAIR/REPLACE NOT COVERED BY GM/CADILLAC. I AM AFRAID TO DRIVE THE CAR NOW THAT IT IS LEAKING. *TR *JB

NHTSA ID
10205271
Incident
Oct 9, 2007
Mileage
10 mi
AirbagsElectricalEngine+4 more
Filed Jul 23, 2007

I AM AND HAVE BEEN EXPERIENCING NUMEROUS FAILURES WITH MY VEHICLE. I HAVE CONTACTED GM NUMEROUS TIMES BEGINNING APPROXIMATELY A FEW MONTHS AFTER I PURCHASED THE VEHICLE TO INFORM THEM THAT THE VEHICLE IS DEFECTIVE, ONLY TO BE TOLD MY VEHICLE IS OUT OF WARRANTY, SO THEY REFUSE TO FIX IT OR GIVE MY ONE THAT IS NOT DEFECTIVE. MY VEHICLE IS STILL DEFECTIVE TO THIS DATE. *TR

NHTSA ID
10197185
Incident
Jan 1, 2003
Mileage
2,000 mi
Powertrain (other)
Filed Apr 21, 2005

HAVE 2003 CADILLAC CTS, HAD THE DIFFERENTIAL REPLACED BECAUSE IT WAS HOWLING & GETTING WORSE (THIS IS COMMON COMPLAINT BY OWNERS OF 2003 - 2005 CTS MODELS - SEE CADILLAC USERS GROUP, CTS FORUM). PICKED UP CAR AFTER DIFFERENTIAL WAS REPLACED. DROVE APPROXIMATELY 2 MILES FROM DEALER WHEN DIFFERENTIAL LOCKED UP AT 50 MPH. MANAGED TO CONTROL SLIDE/SKID AND SLIDE OFF FOUR-LANE ROAD SURFACE WITHOUT HITTING OTHER VEHICLES, BUT HAD IT HAPPENED A MILE FURTHER DOWN THE ROAD, I'D HAVE BEEN ON I-85 IN HEAVY INTERSTATE TRAFFIC AT 70 MPH... DEALER REPLACED FAILED REAR END WITH ANOTHER NEW ONE WHICH, THUS FAR (500 MILES OR SO) IS TROUBLE-FREE, BUT IN VIEW OF THE PROBLEMS I & OTHERS HAVE EXPERIENCED WITH THESE UNITS, I HAVE LITTLE CONFIDENCE THAT THE BASIC PROBLEM HAS BEEN RESOLVED. UNCOMFORTABLE AT THOUGHT OF DEPENDING ON VEHICLE FROM BOTH SAFETY & BASIC TRANSPORT ASPECT - RELUCTANT TO CONTEMPLATE A LONG DISTANCE TRIP FOR THESE REASONS. CALLED CADILLAC & THEY SENT A WARRANTY RIDER EXTENDING COVERAGE OF THE DIFFERENTIAL/CARRIER ASSEMBLY TO 2010 OR 100,000 MILES, WHICH IS USEFUL. HOWEVER, GM MINDSET SEEMS TO BE THAT IT IS CHEAPER TO REPLACE THESE UNITS AS THEY FAIL WITH NEW UNITS WITH THE SAME FLAW , THAN IT IS TO DETERMINE WHY THEY ARE FAILING, CORRECT THE FLAW & PROVIDE OWNERS WITH REDESIGNED, SAFE UNITS. I MAY BE OFF A BIT ON THE ACTUAL DATE OF THE INCIDENT INVOLVING FAILURE OF DIFFERENTIAL AS MY DEALER, CLASSIC CADILLAC IN MONTGOMERY, AL, HAS NOT AS OF YET PROVIDED ME A COPY OF THE PAPERWORK DOCUMENTING THE INCIDENT & INSTALLATION OF THE THIRD DIFFERENTIAL. I CALLED MY SERVICE REP YESTERDAY & HE APOLOGIZED FOR THE "OVERSIGHT" & SAID THEY'D MAIL ME THE DOCUMENTATION. THE DIFFERENTIAL THAT SEIZED IS NOT AVAILABLE - I TOLD THEM I WANTED TO SEE IT, BUT WAS INFORMED THAT THEY HAD TO SEND IT BACK IN ORDER TO GET ANOTHER REPLACEMENT. *NM

NHTSA ID
10118204
Incident
Mar 11, 2005
Mileage
18,698 mi
BrakesDriver assistancePowertrain (other)+2 more
Filed Apr 18, 2005

THERE NEEDS TO BE AN IN-DEPTH INVESTIGATION REGARDING THE NUMBER OF CTS AND CTS-V REAR DIFFERENTIALS THAT HAVE BEEN REPLACED. I HAVE NOW BEEN THROUGH 2 PERSONALLY, AND AN ONLINE POLL OF 65 CTS-V OWNERS SHOWED THIS: 26% HAVE HAD 1 REPLACEMENT, 5% HAVE HAD 2 OR MORE REPLACED, AND 8% HAVE HAD 3 OR MORE REPLACED. THE LINK FOR THIS POLL IS: HTTP://CADILLACFORUMS.COM/FORUMS/SHOWTHREAD.PHP?P=305662&POSTED=1#POST305662. PLEASE CONTACT ME REGARDING ANY INFORMATION LEARNED. THANK YOU. *AK!

NHTSA ID
10118067
Incident
Apr 16, 2005
Mileage
26,000 mi
Powertrain (other)
Filed Feb 15, 2005

BOUGHT CAR IN AUGUST OF 2004, THIS IS THE FOURTH TIME CAR HAS BEEN PUT IN SHOP. CAR WOULD BE STILL RUNNING BUT "ENGINE REDUCE POWER DISPLAYED ON SCREEN", NO GAS WOULD GO TO PEDAL I WOULD HAVE TO COAST TO A SAFE LOCATION. DEALER CLAIMS IT IS THE THROTTLE BODY, EACH TIME THEY SAY THEY HAVE REPAIRED IT BUT THIS IS NUMBER 4. REPLACED A COMPUTER CHIP, FLUSHED OUT THROTTLE BODY COMPONENT, REPLACE CRAKED CRANK SHAFT CASE, HAVEN'T HEARD WHAT NOW THEY ARE REPLACING.

NHTSA ID
10110576
Incident
Feb 14, 2005
Powertrain (other)
Filed Nov 28, 2004

NOTICED A HIGH-PITCHED WHINE COMING FROM REAR AT 50000 MILES. STOPPED BY THE DEALERSHIP, THE SERVICE MANAGER DROVE THE VEHICLE AND STATED IT WAS THE TIRES CAUSING THE NOISE. CONTINUED TO DRIVE THE VEHICLE, SOUND BECAME MORE PRONOUNCED. A CHECK ENGINE LIGHT APPEARED, SO NEEDED TO SERVICE THE CAR. THIS REPAIR WAS UNRELATED TO THE WHINE, AN EMISSION CONTROL VALVE HAD FAILED. WHILE AT THE DEALERSHIP REQUESTED THEY CHECK, AGAIN, THE WHINE FROM THE REAR. WAS NOTIFIED THAT INDEED IT WAS THE DIFFERENTIAL THAT NEEDED REPLACING. HAVE NOT TAKEN POSSESSION OF THE VEHICLE, BUT AM CONCERNED ABOUT DRIVING IT NOW. MUCH CONCERNED ABOUT THE RELIABILITY OF THE VEHICLE.*AK

NHTSA ID
10100636
Incident
Nov 22, 2004
Mileage
72,300 mi
Powertrain (other)
Filed Jun 27, 2004

MY VEHICLE DEVELOPED A HUMMING NOISE COMING FROM THE REAR DIFFERENTIAL AT 30,000 MILES. THE DEALERSHIP FOUND THAT MY REAR DIFFERENTIAL WAS FULL OF METAL AND STATED THAT THE WHOLE DIFFERENTIAL MUST BE REPLACED SINCE THE METAL CHURNING THROUGH THE GEARS RUINS THE WHOLE UNIT. 7,000 MILES LATER THE NOISE RETURNED. THE DEALER AGAIN FOUND METAL IN THE DIFFERENTIAL, BUT THIS TIME CADILLAC TOLD THEM TO SIMPLY PUT SOME SPECIAL LUBRICANT IN IT! ALL THIS, AFTER THEY TOLD ME LAST TIME THAT THIS TYPE OF PROBLEM REQUIRES REPLACEMENT, AND NOTHING LESS. I WAS TOLD TO DRIVE MY CAR FOR A FEW WEEKS AND SHOCKINGLY ENOUGH, THE MAGIC LUBE DID NOTHING FOR THE PROBLEM. AFTER READING SEVERAL REPORTS FROM PEOPLE WHO HAD THE REAR DIFFERENTIAL OF THIS CAR SIEZE UP(EVEN CAUSING ACCIDENTS), I APPROACHED THE DEALERSHIP FOR A LOANER. I WAS DENIED A LOANER, AND THE MANAGER HAD THE NERVE TO TELL ME THE NOISE WAS NORMAL. WHY ON EARTH THEY FIXED A "NORMAL" CAR THE FIRST TIME IS BEYOND ME. WHEN I ASKED THEM TO SHOW ME ANOTHER CAR ON THE LOT THAT MAKES THE SAME NOISE, THEY BACKED DOWN. PLEASE HELP WITH THIS ISSUE. I AM AFRAID TO DRIVE MY CAR! *JB

NHTSA ID
10078900
Incident
May 21, 2003
Powertrain (other)
Filed May 19, 2003

WHEN PULLING FROM A LIGHT THERE WAS A CLUNK NOISE COMING FROM SOMEWHERE ON VEHICLE. TOOK TO MECHANIC AND THE BOLTS FOR THE DIFFERENTIAL WERE LOOSE AND CAUSED A LEAK. *NLM

NHTSA ID
10020115
Mileage
5,000 mi
Powertrain (other)
Filed Mar 11, 2003

THE DIFFERENTIAL IN MY 03 CADILLAC CTS DEVELOPED A SERIOUS LEAK. THE DEFECT REQUIRED (3) TRIPS TO THE DEALER TO REPAIR. THE LAST REPAIR, (APPEARS TO BE THE RIGHT ONE) WAS THE REPLACEMENT OF THE DIFFERENTIAL. THIS TYPE OF DEFECT CAN LEAD TO LOSS OF DIFFERENTIAL FLUID RESULTING IN FAILURE OF THE UNIT AND POSSIBLE ACCIDENT. I HAVE FOUND THIS LEAK ON SEVERAL OTHER "03" CTS.*JB

NHTSA ID
10010289
Incident
Feb 4, 2003
Mileage
17,500 mi

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

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Data sources

Data on this page last refreshed .