2005 Cadillac STS Electrical system Problems
- Complaints
- 23about this part
- Share
- 23%of 101 total for the year
- Median mileage
- 62,500miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 23 complaints about the electrical system of the 2005 Cadillac STS, 23% of the 101 complaints for this model year. Where a mileage was given, the median is 62,500 miles. 3 of these say a crash was involved and 3 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Just bought the vehicle used and I hear a noise coming from the rear back of the car. The key fob wasn't working correctly and drained the battery and I had to buy a new battery. I really don't know what wrong with the vehicle but its driveable for now besides the slight banging noise. It need to be checked for recalls.”
NHTSA complaint #10899089, filed 2016-08, 144,719 miles“While driving down the street in my Cadillac STS a (service electric system) warning flashed on my dash. A few moments later everything electric in my car started to shut down. The radio, power steering, lights, and finally the engine. I cruised to the side of the road and put the car in neutral and engaged the emergency brakes.”
NHTSA complaint #10732191, filed 2015-07, 143,689 miles“Was driving low beam lights went out smelled wires burning left side wire harness was melting I was on my way home on highway 51 north at around d 10:45 in the evening”
NHTSA complaint #11232841, filed 2019-07, 132,441 miles“My 2005 Cadillac STS brakes locked up and caused my car to crash. After research I am showing that there was a recall regarding the brake system. In addition, when changing gears you can hear the gears changing from the outside of the car. I researched this as well and apparently there is a defect and recall on the axle. I am not happy about this vehicle that I just purchased for alittle over 7 months. There is also an electrical problem. As I am driving, the hood ajar light comes on and there is no sign of my hood being ajar. …”
NHTSA complaint #10610116, filed 2014-07, 30 miles“I was driving along a city roadway when the vehicle's stability, traction control, and engine light came on simultaneously when all of a sudden the vehicle just stopped, almost causing the car behind me to collide with my vehicle. I called the dealer, lawley's GM store in sierra vista, az. Where I had just purchased the vehicle and told the service manager what happened...he sent a tow truck to pickup the vehicle and after inspecting the vehicle at the dealership told me it was the throttle body needing replacement...I bought a new one and had it installed. …”
NHTSA complaint #10607645, filed 2014-07, 67,000 milesRelated service bulletins
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- 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…
- 11000162Apr 30, 2024The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
- 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.
- 10239102Jun 29, 2023The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
- 10225615Oct 19, 2022This service bulletin provides information on Module Harvesting.
- 10222776Sep 16, 2022The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
- 10198890May 25, 2021This 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…
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 2005 Cadillac STS
18 complaintsEngine
12 complaintsAir bags
11 complaintsFuel system
8 complaintsBrakes
7 complaintsEngine cooling
7 complaintsOther or unknown
6 complaintsSeats
6 complaintsVehicle speed control
6 complaintsExterior lighting
5 complaintsBody and structure
5 complaintsSuspension
5 complaints
← All problems reported for the 2005 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