Cadillac CTS 1st generation (2003–2007)
Generation-specific owner insights from 182+ substantive owner discussions, with US complaint and recall records.
Should I buy a 2003–2007 CTS?
1,324
US owner complaints (NHTSA), 2003–2007
28
recall campaigns
air bags
most-complained area
What owners say about this generation
Our take, from owner reports
Owners of the 2003-2007 CTS generally describe it as a good-looking, enjoyable daily driver that can rack up serious mileage with disciplined maintenance, with several owners reporting 200k+ miles and one reporting 317k.
15 problems reported (1 very frequent, 5 recurrent, 9 isolated) · high confidence
Problems owners report
- Very frequentOil consumption, with owners advised to check the dipstick every few weeks
- RecurrentTiming chain failure risk on the 3.6
Linked to a clogged oil feed line, with one owner reporting engine replacement at 95k.
- RecurrentIgnition coil failure causing misfire, ticking, and smoke, with intake removal needed on one side
+ 12 more issuesShow fewer
- RecurrentRadiator failure at the plastic transmission cooler line flange
Causing coolant and transmission fluid to mix and the transmission to drain.
- RecurrentHeadlight housing cost and clouding
With factory HID replacements described as unreasonably expensive.
- RecurrentRear differential cracking and wheel hop on the CTS-V
- IsolatedECM failure
With one owner reporting a $1,100 replacement and another noting long waits for replacements on earlier models.
- IsolatedOil leaks at engine bolts due to iron bolts in aluminum blocks
- IsolatedExhaust manifold oil burning and exhaust hole
- IsolatedBrake fluid leak after a dealer recall service left a fitting loose
- IsolatedSteering wheel position sensor concern
- IsolatedTransmission failure around 160k on a CTS-V
- IsolatedRough idle and possible lifter rattle at very high mileage
- IsolatedAirbag light covered by a service bulletin
- IsolatedCatalytic converter check engine light
The version owners recommend
Insufficient owner data available to declare a consensus. Partial signal: the 3.6 V6 is the most discussed engine and is praised as a pleasure to drive when maintained, but it is also the engine most tied to oil consumption and timing chain warnings. The CTS-V (with the LS6 in 2004-2005 and LS2 in 2006-2007) draws the strongest positive owner testimony, including one owner at 170k miles with no issues and another reporting only a water pump and alternator since 2010. One owner called their 2004 3.6 bought new "possibly the best all-around car I've owned."
Competitors to consider
Owners compare it most often with the Lexus (ES350 and general Lexus sedans), Mazda 3, Mazda CX-5, Toyota and Mercedes-Benz E350 (W212).
Is a 2003–2007 CTS right for you?
Get an answer for your year, mileage and budget.
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Overall sentiment
Owners of the 2003-2007 CTS generally describe it as a good-looking, enjoyable daily driver that can rack up serious mileage with disciplined maintenance, with several owners reporting 200k+ miles and one reporting 317k. Praise centers on styling, ride quality, and the sense that it was a solid all-around car, while criticism centers on oil consumption, timing chain risk on the 3.6, cooling-system and radiator failures, ignition coils, and general "something breaks every month" maintenance costs on neglected examples. Sentiment is split by example condition rather than by model year: well-maintained cars are loved, while cheap high-mileage cars are described as money pits. The CTS-V variant draws strong enthusiasm for its sleeper character and durable drivetrain, though owners warn about rear differential and wheel-hop issues.
Positioning vs competitors
Owners position the CTS as cheaper to buy and cheaper to maintain than a Lexus or Mercedes, but less refined and less trouble-free; one owner argued a Lexus would be "double in maintenance," while others recommended Lexus or Mazda as the smarter buy for someone who wants low running costs. Against the Mazda 3 and CX-5, the CTS is framed as the more characterful but less reliable and less economical choice, with several owners actively trading or advising a trade out of the CTS into Mazda. Against the Mercedes E350, owners treat the CTS as the cheaper, easier-to-wrench option but concede the Mercedes rides better. Against BMW M3 and AMG, the CTS-V is positioned as a "gentleman's muscle car": subtler and cheaper than its German rivals, with a bulletproof engine but a fragile rear end.
Recommended configurations
Owners advise buying a 3.6 only with a documented maintenance history and frequent oil checks, and several recommend replacing the timing chain on a high-feature 3.6 at or before 90,000 miles as preventative maintenance. For the CTS-V, owners specifically praise the 2006-2007 LS2 cars and the 2004-2005 LS6 cars, and recommend adding a differential bushing set, an anti-wheel-hop kit, poly bushings, and a short shifter. Owners also recommend verifying that a car advertised as a V is genuine, since first-gen V cars were manual with a 6-lug wheel pattern. For cosmetic work, owners favor keeping it simple: clear fog lights, exhaust tips, tint, and headlight restoration: rather than piling on cheap mods.
General recommendations
This generation suits a buyer who wants an inexpensive, good-looking rear-drive sedan and is willing to do or pay for regular maintenance, check the oil constantly, and address cooling-system and ignition parts proactively. It is a poor choice for someone who wants a trouble-free appliance or who cannot absorb surprise repair bills. Owners repeatedly warn against cheap, suspiciously low-priced examples and advise a pre-purchase inspection by a trusted independent mechanic, a scan tool check for codes, and a look at the radiator, transmission cooler lines, rear hub/ABS sensors, axle seals, and rust around the pinch welds and frame. Low-mileage garage-kept cars are viewed favorably but not as a bargain at inflated prices, and owners note that a 20-year-old car needs tires, brakes, and every fluid replaced regardless of mileage. The CTS-V is not recommended for winter or snow use.
Remarks
Owners place heavy emphasis on oil discipline as the single biggest factor in whether a 3.6 lasts, and several mention that dealerships consider one quart per 1,000 miles acceptable consumption. The CTS-V community treats the rear end as the car's known weak point and recommends reinforcing it before adding power. Cosmetic headlight restoration is a common and well-liked fix, with owners reporting professional sand-and-clearcoat jobs costing around $200. Analysis based on approximately 182 substantive owner discussions about this generation.
Complaints and recalls by model year
| Year | Complaints | Recalls | Most-reported area |
|---|---|---|---|
| 2007 | 218 | 6 | air bags |
| 2006 | 272 | 6 | air bags |
| 2005 | 284 | 6 | power train |
| 2004 | 229 | 6 | power train |
| 2003 | 321 | 4 | electrical system |
Source: US National Highway Traffic Safety Administration. Higher-selling years naturally accumulate more complaints.
Recall notices for this generation
2007 · fuel system, gasoline:delivery:fuel pumpcampaign 14V542000
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.
2007 · electrical system:ignitioncampaign 14V394000
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.
2007 · air bags:frontal:sensor/control module-inactivecampaign 10V644000
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.
2007 · service brakes, hydraulic:foundation components:hoses, lines/piping, and fittingscampaign 10V105000
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.
2007 · power train:axle assembly:axle shaft:sealcampaign 07V589000
ON CERTAIN PASSENGER VEHICLES, THE REAR AXLE PINION SEAL DOES NOT MEET ALL OF THE SPECIFICATIONS AND MAY EXPERIENCE A FLUID LEAK.
2007 · structure:body:roof and pillarscampaign 07V468000
CERTAIN VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 118, 'POWER OPERATED WINDOW, PARTITION, AND ROOF PANEL SYSTEMS.' UNDER THE STANDARD, THE SUNROOF MAY ONLY BE CLOSED WHEN THE IGNITION IS ON, OR AFTER THE IGNITION IS TURNED OFF, BUT BEFORE EITHER OF THE FRONT DOORS ARE OPENED. THE AFFECTED VEHICLES MAY EXHIBIT A CONDITION WHERE THE SUNROOF CAN BE CLOSED AFTER THE IGNITION IS TURNED OFF AND THE DOORS ARE OPENED.
2006 · fuel system, gasoline:delivery:fuel pumpcampaign 14V542000
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.
2006 · electrical system:ignitioncampaign 14V394000
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.
2006 · air bags:frontal:sensor/control module-inactivecampaign 10V644000
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.
2006 · service brakes, hydraulic:foundation components:hoses, lines/piping, and fittingscampaign 10V105000
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.
2006 · power train:axle assembly:axle shaft:sealcampaign 07V589000
ON CERTAIN PASSENGER VEHICLES, THE REAR AXLE PINION SEAL DOES NOT MEET ALL OF THE SPECIFICATIONS AND MAY EXPERIENCE A FLUID LEAK.
2006 · fuel system, gasoline:deliverycampaign 06V020000
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.
5 more recalls not shown. Check nhtsa.gov with your VIN for the full history.
Owner insights summarize real ownership discussions for this generation only. Complaint and recall data is public NHTSA (US) information. Always verify recalls against your VIN at nhtsa.gov.