2017 Cadillac CT6 Electrical system Problems
- Complaints
- 4about this part
- Share
- 24%of 17 total for the year
- Median mileage
- 14,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the electrical system of the 2017 Cadillac CT6, 24% of the 17 complaints for this model year. Where a mileage was given, the median is 14,000 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.
“Water is getting into my trunk where the amp is and now my radio does not work only the back up camera. I cannot control the AC or turn on the air conditioner. Or is that how I would like it to blow”
NHTSA complaint #11649426, filed 2025-03“These vehicles have an issue tbat GM is aware of, with their 8 speed automatic transmissions which are used in multiple GM vehicles and these cause safety issues because for instance my vehicle switches gears randomly almost causing a wreck, and shuttering, and even slipping and when this happens the cars traction control light is engaged shutting it off, active steering is also shut off due to these on going issues. Im in a cadillac group and hundreds of us have similar issues.”
NHTSA complaint #11626548, filed 2024-11Related 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.
- 11017443Apr 2, 2025This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3055 Set.
- 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.
- 11013239Jan 14, 2025This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
- 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.
- 11012678Dec 12, 2024This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2019 | 1 | 6% |
| 2017 | 4 | 24% |
Other parts of the 2017 Cadillac CT6
10 complaintsBrakes
2 complaintsVehicle speed control
2 complaintsEngine
1 complaintsForward collision avoidance
1 complaintsFuel system
1 complaintsOther or unknown
1 complaintsSteering
1 complaintsBody and structure
1 complaintsSuspension
1 complaintsTires
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2017 Cadillac CT6
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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