2018 Cadillac CTS Electrical system Problems
- Complaints
- 3about this part
- Share
- 38%of 8 total for the year
- Median mileage
- 7,250miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the electrical system of the 2018 Cadillac CTS, 38% of the 8 complaints for this model year. Where a mileage was given, the median is 7,250 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.
“Cue display panel suddenly has strange web-like defects in right side of panel. Vehicle has been mostly parked in shaded driveway due to covid-19 closures and restrictions. Driven 2 -3 times a week on grocery trips.”
NHTSA complaint #11341495, filed 2020-07, 7,250 miles“What component or system failed or malfunctioned, and is it available for inspection upon request? From 2018. The uauto start/stop system has failed 3 times. How was your safety or the safety of others put at risk? These components failing subjects the driver and surroundings to a stalled car that may not start again. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Inspection by vehicle dealer only. …”
NHTSA complaint #11706788, filed 2025-12Related service bulletins
- 11017595Apr 3, 2025This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- 11017244Mar 31, 2025The 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…
- 11017207Mar 21, 2025This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 11017031Mar 12, 2025This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11013149Jan 17, 2025This service bulletin provides information to the customer about the rear camera guidelines not being present at times due to the VBM taking over the rear camera option.
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 11012929Jan 7, 2025This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- 11011805Dec 6, 2024This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
- 11009170Oct 25, 2024This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2019 | 1 | 10% |
| 2018 | 3 | 38% |
| 2017 | 2 | 7% |
| 2016 | 10 | 32% |
| 2015 | 4 | 8% |
| 2014 | 13 | 9% |
| 2013 | 26 | 36% |
| 2012 | 10 | 15% |
| 2011 | 20 | 20% |
| 2010 | 16 | 24% |
| 2009 | 26 | 16% |
| 2008 | 39 | 22% |
| 2007 | 41 | 19% |
| 2006 | 43 | 16% |
| 2005 | 39 | 14% |
| 2004 | 34 | 15% |
| 2003 | 56 | 18% |
Other parts of the 2018 Cadillac CTS
3 complaintsAir bags
1 complaintsEngine
1 complaintsExterior lighting
1 complaintsOther or unknown
1 complaints
← All problems reported for the 2018 Cadillac CTS
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