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2003 Cadillac Cts

Owner reports · Recalls · Investigations

More warning signs than most Cts years

Owner complaints for the 2003 Cadillac Cts are substantially higher than the model-year median of 101.

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When problems were reported

Mileage at the reported incident

219 reports with mileage · 94 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.

  • Electrical System. Review the 56 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine And Engine Cooling. Review the 38 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Exterior Lighting. Review the 37 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

29 crash reports12 fire reports17 injury reports

Engine And Engine Cooling complaints

38 reports
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62,000 miles · Sep 16, 2010
Engine And Engine Cooling

OIL IN COOLANT RESERVOIR DUE TO OIL COOLER LOCATED UNDER THE INTAKE MANIFOLD, BETWEEN THE CYLINDER HEADS LEAKING. CADILLAC 2003 CTS WITH 6 CYLINDER OPEL MOTOR WITH ONLY 62,000 MILES. *TR

NHTSA ODI #10355873

74,000 miles · Jun 16, 2010
Electrical SystemEngine And Engine Cooling

PURCHASED 2003 CTS USED IN 2007 WITH 54,000 MILES. AT 60,000 MILES, THE SERPENTINE BELT BROKE AND DESTROYED ENGINE IN THE MIDDLE OF RUSH HOUR TRAFFIC. 30 DAYS LATER COIL WENT OUT AND HAD TO BE TOWED AGAIN. APPROXIMATELY 30 DAYS AFTER THAT THE OTHER COIL WENT OUT AND AGAIN VEHICLE WAS TOWED TO THE DEALER FOR REPAIRS. CURRENTL…

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PURCHASED 2003 CTS USED IN 2007 WITH 54,000 MILES. AT 60,000 MILES, THE SERPENTINE BELT BROKE AND DESTROYED ENGINE IN THE MIDDLE OF RUSH HOUR TRAFFIC. 30 DAYS LATER COIL WENT OUT AND HAD TO BE TOWED AGAIN. APPROXIMATELY 30 DAYS AFTER THAT THE OTHER COIL WENT OUT AND AGAIN VEHICLE WAS TOWED TO THE DEALER FOR REPAIRS. CURRENTLY THE CAR IS SITTING IN MY DRIVEWAY AND WILL NOT START. TOOK TO REPAIR SHOP CLOSE TO MY HOUSE AND THEY SAID THE ELECTRICAL SYSTEM IS TOO MESSED UP TO RUN A DIAGNOSTIC ON IT. PRIOR TO THE VEHICLE DYING IN THE DRIVEWAY, THE ENGINE SHUT DOWN IN THE MIDDLE OF THE ROAD ON TWO SEPARATE OCCASIONS. I LOST STEERING AND HAD TO PUSH IT OFF THE ROAD. IT IS A DANGEROUS AND UNRELIABLE VEHICLE AND SHOULD NOT BE ON THE ROAD. I CONTACTED CADILLAC BUT RECEIVED NO RESPONSE. THE CAR CURRENTLY HAS ONLY 74000 MILES ON IT WITH A TOTAL OF MAYBE 20000 ADDED IN THREE YEARS OF OWNERSHIP MOSTLY DUE TO THE CAR NEEDING CONSTANT REPAIRS. I CANNOT AFFORD TO MAKE THE PAYMENTS AND PAY FOR REPAIRS BOTH AT THE SAME TIME. I DO NOT TRUST THE SAFETY OF THIS VEHICLE. *TR

NHTSA ODI #10336583

104,060 miles · Mar 9, 2010
Engine And Engine Cooling

TL*THE CONTACT OWNS A 2003 CADILLAC CTS. WHILE DRIVING 60 MPH THE VEHICLE SHUT OFF WITHOUT WARNING. THE FAILURE HAS OCCURRED ON THREE SEPARATE OCCASIONS. THE MANUFACTURER INFORMED THE CONTACT THAT THERE WERE NO RELATED RECALLS AND THAT THE CALL VOLUME HAD NOT ACCUMULATED ENOUGH TO ISSUE A RECALL. THE CONTACT STATED THAT THE MA…

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TL*THE CONTACT OWNS A 2003 CADILLAC CTS. WHILE DRIVING 60 MPH THE VEHICLE SHUT OFF WITHOUT WARNING. THE FAILURE HAS OCCURRED ON THREE SEPARATE OCCASIONS. THE MANUFACTURER INFORMED THE CONTACT THAT THERE WERE NO RELATED RECALLS AND THAT THE CALL VOLUME HAD NOT ACCUMULATED ENOUGH TO ISSUE A RECALL. THE CONTACT STATED THAT THE MANUFACTURER SHOULD BE RESPONSIBLE FOR THE REPAIRS. THE FAILURE MILEAGE WAS 104,060.

NHTSA ODI #10317975

121,000 miles · Mar 5, 2010
Engine And Engine Cooling

ENGINE OIL LEAKS INTO THE COOLANT SYSTEM THROUGH THE OIL COOLER LOCATED IN UNDER THE INTAKE MANIFOLD. THE COOLANT WILL THEN TURN INTO A THICK SUBSTANCE WHICH DOES NOT EASILY FLOW THROUGH THE COOLANT SYSTEM AND THE CAR ENGINE WILL OVERHEAT. TO CORRECT THE FAILURE THE OIL COOLER NEEDS TO BE REPLACED AS WELL AS ALL RUBBER COOLANT L…

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ENGINE OIL LEAKS INTO THE COOLANT SYSTEM THROUGH THE OIL COOLER LOCATED IN UNDER THE INTAKE MANIFOLD. THE COOLANT WILL THEN TURN INTO A THICK SUBSTANCE WHICH DOES NOT EASILY FLOW THROUGH THE COOLANT SYSTEM AND THE CAR ENGINE WILL OVERHEAT. TO CORRECT THE FAILURE THE OIL COOLER NEEDS TO BE REPLACED AS WELL AS ALL RUBBER COOLANT LINES AND THEN THE COOLANT SYSTEM NEEDS TO BE FLUSHED TO REMOVE ALL CONTAMINATED COOLANT. TYPICAL COST IS AROUND 4500 DOLLARS FOR PARTS AND LABOR. THE MILEAGE ON MY CAR WAS 121,000 WHEN THIS HAPPENED BUT FROM READING ON LINE MANY OTHER PEOPLE HAVE HAD THIS SAME PROBLEM WITH MILEAGE FROM 50,000 ON UP. *TR

NHTSA ODI #10317004

88,000 miles · Jan 19, 2010
Engine And Engine Cooling

TL*THE CONTACT OWNS A 2003 CADILLAC CTS. WHENEVER THE CONTACT DROVE THE VEHICLE AT ANY SPEED INCLUDING APPROXIMATELY 10 MPH, THE VEHICLE SUDDENLY BEGAN TO STALL AND SHUT OFF WITHOUT NOTICE. THE VEHICLE WAS TAKEN TO THE DEALER AND THE CRANK SHAFT SENSOR AND THE ECM COMPUTER WERE REPLACED; HOWEVER, THE FAILURE CONTINUED TO OCCUR. …

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TL*THE CONTACT OWNS A 2003 CADILLAC CTS. WHENEVER THE CONTACT DROVE THE VEHICLE AT ANY SPEED INCLUDING APPROXIMATELY 10 MPH, THE VEHICLE SUDDENLY BEGAN TO STALL AND SHUT OFF WITHOUT NOTICE. THE VEHICLE WAS TAKEN TO THE DEALER AND THE CRANK SHAFT SENSOR AND THE ECM COMPUTER WERE REPLACED; HOWEVER, THE FAILURE CONTINUED TO OCCUR. THERE WERE NO PRIOR WARNINGS. THE CURRENT AND FAILURE MILEAGES WERE 88000. UPDATED 2/1/10 *CN THE CAM SENSOR AND CRANKSHAFT POSITION SENSOR WERE DEFECTIVE. UPDATED 02/02/10.*JB

NHTSA ODI #10300258

75,000 miles · Dec 11, 2009
Engine And Engine Cooling

OIL LEAK FROM FROZEN PCV VALVE AND VALVE COVER GASKET. CAUSES OIL TO LEAK ONTO ENGINE AND EXHAUST AND FUMES FROM BURNING OIL TO ENTER INTO THE CABIN OF THE CAR. *TR

NHTSA ODI #10295348

66,164 miles · Mar 23, 2009
Engine And Engine Cooling

TL*THE CONTACT OWNS A 2003 CADILLAC CTS. THE CONTACT STATED THAT THE PCV PASSAGE FROZE AND CAUSED OIL TO SPILL ONTO THE EXHAUST. HE CALLED THE LOCAL DEALER AND WAS INFORMED THAT THE PAV PASSAGE WAS FAULTY. THE DEALER REDESIGNED THE PCV PASSAGE IN THE VEHICLE. THREE MONTHS AFTER THE REPAIR, THE PCV PASSAGE BEGAN LEAKING AGAIN…

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TL*THE CONTACT OWNS A 2003 CADILLAC CTS. THE CONTACT STATED THAT THE PCV PASSAGE FROZE AND CAUSED OIL TO SPILL ONTO THE EXHAUST. HE CALLED THE LOCAL DEALER AND WAS INFORMED THAT THE PAV PASSAGE WAS FAULTY. THE DEALER REDESIGNED THE PCV PASSAGE IN THE VEHICLE. THREE MONTHS AFTER THE REPAIR, THE PCV PASSAGE BEGAN LEAKING AGAIN. THE CONTACT CALLED THE MANUFACTURER ABOUT THE LEAK, BUT HAS NOT RECEIVED ANY FEEDBACK FROM THE MANUFACTURER OR THE DEALER. HE FEELS THIS IS A SAFETY ISSUE BECAUSE THE BURNING OIL LEAVES A TOXIC SMELL IN THE VEHICLE, AND THE LEAKING COULD CAUSE THE VEHICLE TO SHUT OFF. THE CURRENT MILEAGE WAS 67,000 AND FAILURE MILEAGE WAS 66,164.

NHTSA ODI #10262765

63,000 miles · Mar 13, 2009
Engine And Engine Cooling

OIL LEAKAGE FROM CAM COVER GASKETS THAT REQUIRE REPAIR. 3.2L V-6 IN MY 2003 CADILLAC CTS. BLACK SMOKE WITH EXTREME BURNING SMELL FLOODED VEHICLE INTERIOR COMPARTMENT ALSO SMOKE STARTS TO COME FROM UNDER HOOD OF VEHICLE. PULLED INTO SAFE LOCATION FOUND HUGE OIL LEAK ON LEFT SIDE OF ENGINE AROUND VALVE COVER. COULD HAVE POSSIBLY S…

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OIL LEAKAGE FROM CAM COVER GASKETS THAT REQUIRE REPAIR. 3.2L V-6 IN MY 2003 CADILLAC CTS. BLACK SMOKE WITH EXTREME BURNING SMELL FLOODED VEHICLE INTERIOR COMPARTMENT ALSO SMOKE STARTS TO COME FROM UNDER HOOD OF VEHICLE. PULLED INTO SAFE LOCATION FOUND HUGE OIL LEAK ON LEFT SIDE OF ENGINE AROUND VALVE COVER. COULD HAVE POSSIBLY STARTED A FIRE DUE TO HIGHLY COMBUSTIBLE OIL BEING BLOWN ON ENGINE BUT LUCKILY DID NOT CATCH ON FIRE. CHECK ON-LINE FOUND TSB 05-06-01-007A STATING GM KNOWS THIS IS A PROBLEM. "WHEN OPERATING IN EXTREMELY COLD WEATHER CONDITIONS. AND GM DOESN'T HAVE THE PARTS AVAILABLE TILL JUNE FOR MY CAR AND AT A COST OF 860.00 DOLLAR. PCV HOSE KIT, P/N 55558592 AND OIL FILTER CAP, P/N 12589430. SAFETY OF THE DRIVERS AND PASSENGERS SHOULD BE CONSIDERED CAUSE OF THE FUMES BEING RELEASED IN THE PASSENGER COMPARTMENT. SEVERAL PEOPLE I KNOW HAVE THE SAME PROBLEM AND THERE WAITING ALSO. A KNOWN PROBLEM AND GM SHOULD STEP UP AND ISSUE A RECALL ON THIS. *TR

NHTSA ODI #10261717

30,948 miles · Feb 16, 2009
Engine And Engine Cooling

CAR ENGINE FAILED AT 30,000 MILES - IT STARTED MAKING A CLICKING SOUND, SO MY HUSBAND DECIDED TO TAKE IT TO THE SHOP. HE DIDN'T EVEN MAKE IT TO THE SHOP - JUST HAD TO TOW IT. THE CAR WAS DRIVEN GINGERLY BY MY 80 YEAR OLD GRANDMOTHER FOR 7,000 MILES, THEN BY ME (AGE 40 WITH TWO CHILDREN IN CAR SEATS) FOR THE REMAINING MILES. C…

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CAR ENGINE FAILED AT 30,000 MILES - IT STARTED MAKING A CLICKING SOUND, SO MY HUSBAND DECIDED TO TAKE IT TO THE SHOP. HE DIDN'T EVEN MAKE IT TO THE SHOP - JUST HAD TO TOW IT. THE CAR WAS DRIVEN GINGERLY BY MY 80 YEAR OLD GRANDMOTHER FOR 7,000 MILES, THEN BY ME (AGE 40 WITH TWO CHILDREN IN CAR SEATS) FOR THE REMAINING MILES. CADILLAC OFFERED TO PAY 1/2 THE COST TO REBUILD, BUT THE TOTAL COST WAS ESTIMATED AT OVER $15,000. THEY SAID THERE WEREN'T ANY NEW ENGINES TO DROP IN, BUT THEY FOUND ONE USED ENGINE (WITH 1 MILE ON IT) THAT THEY COULD USE THAT WOULD COST ABOUT $4,150. HOWEVER, THEY WOULDN'T PAY ANY OF THE COST OF DROPPING IN THE USED ENGINE. WE OPTED TO REPLACE THE ENGINE AT OUR COST INSTEAD SO WE COULD GET AWAY WITH PAYING $4,150 INSTEAD OF $7,500. I COMPLAINED TO GM SERVICE DEPARTMENT, AND KEPT BEING GIVEN INCORRECT INFORMATION. ONE PERSON WOULD TELL ME THEY WOULD PAY 1/2 THE COST TO REPAIR OR REPLACE THE ENGINE, THE NEXT WOULD SAY THEY WOULD NOT PAY. I KEPT GOOD RECORDS OF ALL PERSONS CONTACTED DURING THE LONG, LONG PROCESS. THEY EVEN HAD ME GATHER ALL MY PRIOR SERVICE RECORDS SO THEY COULD BE CERTAIN THE CAR) HAD BEEN PROPERLY MAINTAINED (WHICH IT HAD.) AT ONE POINT I WAS EVEN TOLD (BY THE DISTRICT SPECIALIST OFFICE AT GM) THAT MY GRANDMOTHER HAD APPARENTLY PURCHASED AN EXTENDED WARRANTY ON IT, AND THEY COULD JUST USE THAT. LATER, I WAS TOLD THAT NO EXTENDED WARRANTY EXISTED. I WAS LED ON AND MISINFORMED FOR 1 1/2 MONTHS, WHILE MY CAR SAT AT THE DEALERSHIP 90 MILES AWAY. I WAS WITHOUT MY VEHICLE FOR 1 1/2 MONTHS, WHILE EVERYONE DECIDED WHAT SHOULD BE DONE, AND AS IT ENDS UP, IT COULD HAVE BEEN DONE IMMEDIATELY IF I HADN'T BEEN GIVEN THE RUN AROUND BEING TOLD GM WAS GOING TO HELP WITH THE REPAIR COST. NOT A GOOD EXPERIENCE - NOT A GOOD CAR. *TR

NHTSA ODI #10258784

49,000 miles · Oct 31, 2008
Engine And Engine Cooling

V6 ENGINE WITH COOLANT LEAKS. 3RD TIME SOMETHING DEALING WITH A LEAK REASON FOR SERVICE. THIS TIME A WATER PUMP THAT LEAD TO BROKEN,CRACK PULLEY. I CAN FIND NO ONE EVER HAVING THIS PROBLEM. I HAVE BEEN WITHOUT A CAR ALMOST 30 DAYS. *TR

NHTSA ODI #10247370

Official recalls

4

14V394000 · Electrical System:ignition

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.

10V105000 · Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings

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.

03V250000 · Equipment:other:owners/service/other Manual

Jul 15, 2003

CERTAIN MINIVANS, PASSENGER AND SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEM." THE OWNER'S MANUAL DOES NOT EXPLAIN THE MEANING OF THE LOCATION SYMBOLS FOR THE CHILD RESTRAINT LOWER UNIVERSAL ANCHORAGE SYSTEM.

Consequence & remedy

Consequence: THIS DOES NOT MEET THE REQUIREMENTS OF THE STANDARD.

Remedy: OWNERS WILL BE PROVIDED WITH A SUPPLEMENT FOR THEIR OWNER'S MANUAL. THIS SUPPLEMENT DESCRIBES AND SHOWS THE LOCATION SYMBOLS FOR THE CHILD RESTRAINT ANCHORS THAT ARE LOCATED IN THE VEHICLE AND ON THE CHILD RESTRAINT OR BOOSTER CUSHION. OWNER NOTIFICATION BEGAN AUGUST 18, 2003. OWNERS SHOULD CONTACT BUICK AT 1-866-608-8080, CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, PONTIAC AT 1-800-620-7668, OR OLDSMOBILE AT 1-800-630-6537.

03V115000 · Steering

Mar 24, 2003

SOME PASSENGER VEHICLES HAVE A CONDITION IN WHICH THE INTERMEDIATE STEERING SHAFT BOLT MAY BE LOOSE.

Consequence & remedy

Consequence: AN IMPROPERLY TIGHTENED BOLT COULD LOOSEN, RESULTING IN SEPARATION OF THE UPPER AND LOWER STEERING SHAFTS CAUSING A LOSS OF VEHICLE CONTROL. IF THIS HAPPENS WHILE THE VEHICLE IS MOVING, A CRASH COULD RESULT WITHOUT PRIOR WARNING.

Remedy: DEALERS WILL INSPECT FOR THE PRESENCE OF THE INTERMEDIATE STEERING SHAFT BOLT AND ENSURE THAT IT IS TIGHTENED TO THE PROPER SPECIFICATION. OWNER NOTIFICATION BEGAN MARCH 20, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT CADILLAC AT 1-800-458-8006.

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

0

No exact-year investigations in this snapshot.