AI Damage2003 Cadillac CTS: common problems
Owners of the 2003 Cadillac CTS filed 313 complaints with NHTSA, most often about electrical system and service brakes. Details by component below, with sources.
Key figures
- Owner complaints
- 313
- involving a crash
- 29
What fails most often
- 1 Electrical system 18% of all complaints
- 2 Service brakes 15% of all complaints
- 3 Engine and cooling 12% of all complaints
- 4 Exterior lighting 12% of all complaints
- 5 Air bags 12% of all complaints
- 6 Engine 9% of all complaints
- 7 Steering 9% of all complaints
- 8 Powertrain 8% of all complaints
- Electrical system: 56 complaints (18% of all), 4 of them with a crash reported by the owner.
- Service brakes: 47 complaints (15% of all), 4 of them with a crash reported by the owner.
- Engine and cooling: 38 complaints (12% of all).
- Exterior lighting: 37 complaints (12% of all), 1 of them with a crash reported by the owner.
- Air bags: 36 complaints (12% of all), 16 of them with a crash reported by the owner.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 3.2 L · petrol · 6 cylnamed in 2 complaints
- automatic, 5-speed
- manual, 5-speed
Drive: RWD
Symptoms owners describe
How many of the 313 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 56 | 4 | 0 |
| Service brakes | 47 | 4 | 0 |
| Engine and cooling | 38 | 0 | 0 |
| Exterior lighting | 37 | 1 | 0 |
| Air bags | 36 | 16 | 0 |
| Engine | 29 | 1 | 0 |
| Steering | 28 | 3 | 0 |
| Powertrain | 25 | 2 | 0 |
| Vehicle speed control | 24 | 5 | 0 |
| Electronic stability control | 22 | 1 | 0 |
| Structure | 22 | 2 | 0 |
| Suspension | 11 | 0 | 0 |
| Equipment | 10 | 1 | 0 |
| Visibility | 9 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
While driving out of the parking lot, the vehicle stalled and abruptly shut down. As a result, another vehicle crashed into the contact's vehicle. The air bags did not deploy. The contact sustained neck, shoulder, and head injuries that required medical attention. A police report was filed.
The engine stalled, but the vehicle continued to coast and crashed into a tree. The air bags failed to deploy and the contact was launched through the windshield. The contact sustained lower back, neck, and head injuries that required medical attention. The vehicle was destroyed. A police report was filed.
The contact stated that while driving at 35 mph, the vehicle stalled without any warning causing the contact to loose control and crashed into a house. The air bag did not deploy. The vehicle was deemed destroyed and was towed.
The contact stated while driving approximately 50 mph, the engine stalled. As a result, another vehicle crashed into the rear of the vehicle pushing it off the road. The air bags failed to deploy.
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.
Thereafter another car broadsided the car and knock it to the curb moving the vehicle form the "t" position. Her dad contacted marietta cadillac dealer a few days later and informed them of the shut-off and asked if there were any recalls. The dealer said they would check and call back.
I was riding down the street and I heard a scrubbing noise cumming from like behind my wheel when I would turn I tried to slow down lately I thought I needed brake fluid but something made me just loose control and jump the media strip I could have killed someone luckily I didn't now my left front tire is bent in a…
09149) that involves the front brake hoses rupturing due to road salt corrosion. However, the state of ky is not covered. We have road salt here as well. Pikeville is just 20 miles from wv and it is covered there. My vin falls within the guideline.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 1,292 of 36,656 model years in the NHTSA data (top 4% most complained about).
On average one model year of the CTS has 131 complaints (17 years in the data). This year has 313, above average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
Other years of this model
- CTS 2004224 sources
- CTS 2005277 sources
- CTS 2006269 sources
- CTS 2007217 sources
- CTS 2008175 sources
- CTS 2009168 sources
- CTS 201067 sources
- CTS 2011101 sources
- CTS 201265 sources
- CTS 201373 sources
- CTS 2014146 sources
- CTS 201549 sources
- CTS 20161,161 sources
- CTS 2017968 sources
- CTS 2018719 sources
- CTS 2019675 sources
Questions and answers
What are the most common problems with the 2003 Cadillac CTS?
Owner complaints to NHTSA most often mention: electrical system, service brakes, engine and cooling. Total complaints: 313. The most frequent symptoms in complaint texts: stalls while driving (9%), smoke, burning smell, fire (7%), warning lights, check engine (7%).
How many service bulletins (TSB) were issued for the 2003 Cadillac CTS?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2003 Cadillac CTS from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2003 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.