2003 Cadillac STS Fuel system Problems
- Complaints
- 1about this part
- Share
- 13%of 8 total for the year
- Median mileage
- 63,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the fuel system of the 2003 Cadillac STS, 13% of the 8 complaints for this model year. Where a mileage was given, the median is 63,000 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 vehicle stalls sometimes when standing at a light or while driving the vehicle at various speeds & sometimes into a turn without warning, this incident occurred numerous times. The vehicle has not been to the dealership to be inspected. The manufacturer has not been alerted.”
NHTSA complaint #10617211, filed 2014-07, 63,000 milesRelated service bulletins
- 11004761Jun 28, 2024This service 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 or…
- 10171878Jan 2, 2020This informational 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…
Fuel system: other model years
Other parts of the 2003 Cadillac STS
3 complaintsEngine cooling
3 complaintsBrakes
2 complaintsElectronic stability control
1 complaintsEquipment
1 complaintsExterior lighting
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 29, 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