YearToAvoid

2005 Cadillac STS Electrical System Problems

NHTSA has 27 owner complaints about electrical problems in the 2005 Cadillac STS, 27% of all 101 complaints for this model year. That is the highest electrical complaint count among 7 STS model years. These complaints report 3 crashes and 3 fires. Median mileage at failure: 60,000 miles.

Electrical System complaints
27
27% of 101 complaints
All complaints this year
101
Crashes reported
3
Fires reported
3
Injuries reported
0
Median mileage
60,000 mi
Related recalls
0

When 2005 Cadillac STS electrical complaints were filed

First complaint Jun 3, 2005, latest Jul 17, 2019.

2005 Cadillac STS electrical system complaints: complaints filed per month2Jun 2005Feb 2006Apr 2007Sep 2008Jul 2012Mar 2014Feb 2016Jul 2019
27 complaints filed with NHTSA from Jun 2005 to Jul 2019; peak Nov 2005 (2).

Electrical System recalls for the 2005 Cadillac STS

No safety recalls on record for this model year.

Electrical System complaints by STS model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 200527 (27%)
  2. 200621 (15%)
  3. 200716 (31%)
  4. 20089 (18%)
  5. 20091 (7%)
  6. 20102 (50%)
  7. 20113 (43%)

Frequently asked questions

Does the 2005 Cadillac STS have electrical problems?
NHTSA has 27 owner complaints about the electrical in the 2005 Cadillac STS, 27% of all complaints for this model year, including 3 that report a crash. Median mileage at failure is 60,000 miles.
Which Cadillac STS year has the most electrical complaints?
The 2005 Cadillac STS has the most electrical complaints (27), compared with 27 for the 2005.
Is there a electrical recall for the 2005 Cadillac STS?
No NHTSA recall campaign for the 2005 Cadillac STS is classified under electrical system. Complaints alone do not trigger a recall; check the full recall list and your VIN.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.