2003 Cadillac STS Electrical system Problems
- Complaints
- 3about this part
- Share
- 38%of 8 total for the year
- Median mileage
- 65,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the electrical system of the 2003 Cadillac STS, 38% of the 8 complaints for this model year. Where a mileage was given, the median is 65,500 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.
“Vehicle was idling in driveway during strong electrical storm. Lightning appeared to hit a tree nearby. Simultaneously, several dash warning lights came on and stayed on, including anti-lock brake, traction and stability control warnings. Call was made to insurance company and vehicle towed to Cadillac dealership. …”
NHTSA complaint #10473982, filed 2012-09, 112,000 miles“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
- 11006621Aug 26, 2024Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which…
- 11002312Jun 6, 2024This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 10252735Mar 28, 2024This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
- 10244214Sep 21, 2023This informational bulletin provides information for the IPC odometer programming method quick reference guide.
- 10225615Oct 19, 2022This service bulletin provides information on Module Harvesting.
- 10190320Oct 1, 2017IPC Odometer Programming Method Quick Reference Guide
- 10081022Jun 14, 2016This preliminary information communication advises the technician that ,when testing any circuit for open or resistance, it is imperative that all related terminal pin fit and…
- 10083898Apr 27, 2016This preliminary information communication advises the technician if unable to place an onstar call in the ignition on mode after the onstar canada upgrade, to contact the gm…
- 10083484Apr 19, 2016This preliminary information communication provides information to help the dealership technicians perform a parasitic drain test for the onstar module. When performing battery…
- 10078735Apr 19, 2016This preliminary information communication provides information to help the dealership technicians perform a parasitic drain test for the onstar module. When performing battery…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2011 | 3 | 43% |
| 2009 | 1 | 7% |
| 2008 | 8 | 16% |
| 2007 | 11 | 21% |
| 2006 | 21 | 15% |
| 2005 | 23 | 23% |
| 2004 | 1 | 14% |
| 2003 | 3 | 38% |
| 2002 | 1 | 14% |
| 2001 | 1 | 8% |
| 2000 | 3 | 25% |
| 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