2003 Cadillac STS Engine cooling Problems
- Complaints
- 3about this part
- Share
- 38%of 8 total for the year
- Median mileage
- 16,650miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine cooling of the 2003 Cadillac STS, 38% of the 8 complaints for this model year. Where a mileage was given, the median is 16,650 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact stated while driving the vehicle at various speeds between 5 to 50 MPH the engine stalled without warning, this incident occurred four times. The vehicle has not been to the dealership to be inspected. The manufacturer has not been alerted. The dealer corrected the problem by replacing the battery and crankshaft sensor. Updated 02/21/06.”
NHTSA complaint #10149199, filed 2006-02, 19,000 milesRelated service bulletins
- 10251890Mar 13, 2024This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank…
- 10250775Feb 22, 2024This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10242843Sep 1, 2023The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 10242262Aug 24, 2023This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and…
- 10235802Apr 24, 2023This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
- 10234141Mar 23, 2023This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
- 10234110Mar 17, 2023This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
- 10228888Dec 14, 2022This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or…
- 10227056Nov 9, 2022This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2008 | 2 | 4% |
| 2007 | 1 | 2% |
| 2006 | 8 | 6% |
| 2005 | 7 | 7% |
| 2004 | 1 | 14% |
| 2003 | 3 | 38% |
| 2002 | 1 | 14% |
| 2001 | 1 | 8% |
| 2000 | 2 | 17% |
| 1999 | 6 | 46% |
Other parts of the 2003 Cadillac STS
3 complaintsBrakes
2 complaintsElectronic stability control
1 complaintsEquipment
1 complaintsExterior lighting
1 complaintsFuel system
1 complaintsSteering
1 complaintsSuspension
1 complaints
← All problems reported for the 2003 Cadillac STS
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology