2017 Cadillac CT6 Plug-In Hybrid Problems
- Complaints
- 9filed with NHTSA
- Median mileage
- 8,862miles, 8 complaints with mileage
- Recalls
- 1campaigns on record
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
Sources: NHTSA records for the 2017 Cadillac CT6 Plug-In Hybrid (complaints, recalls, investigations). Report an error
NHTSA recorded 9 consumer complaints for the 2017 Cadillac CT6 Plug-In Hybrid. The part named most often is transmission and drivetrain, with 7 complaints (78% of the total), followed by electrical system (1) and engine (1). 8 of the complaints include a mileage, and 75% of those were filed for vehicles with under 50,000 miles; the median is 8,862 miles. NHTSA lists 1 recall campaign and 664 technical service bulletins for this model year. Transmission and drivetrain complaints overlap with 53 technical service bulletins filed under the same part. Electrical system complaints overlap with 187 technical service bulletins filed under the same part.
This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.
Which parts are reported most
Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.
- Electrical system1 11%
- Engine1 11%
- Body and structure1 11%
Example complaints
Transmission and drivetrain: “I purchased the used 2017 Cadillac ct6 in march 2019 with 24,192 miles. It was a certified pre -owned car by the dealer. Additionally I purchased a cpo protection plus protection plan with the car. I am experiencing problems with the transmission. During acceleration and decelerating the car feels a hesitation followed by a significant shake, shudder, jerk, clunk or hard shift. The auto start stop feature is not working correctly. …”
NHTSA complaint #11255505, filed 2019-09, 24,192 milesEngine: “On more than three occasions, this vehicle has lost substantial or all propulsion due to engineering design defects with the gas/hybrid electric transmission system. All but one of these situations occurred on a high speed freeway causing potentially life threatening conditions when the vehicle substantially slowed or stopped. This is a known issue as is evidenced by other owners of this vehicle reporting the same issue and the manufacturer failing to have a viable permanent remedy. …”
NHTSA complaint #11316043, filed 2020-03, 9,759 milesBody and structure: “The contact owns a 2017 Cadillac ct6. Due to the changes in the weather, the rear window had a marbleized haze cover, which made visibility out of the window extremely difficult. The vehicle was taken to schooley Cadillac (2101 45th st, west palm beach, fl), but the cause of the failure could not be determined. The manufacturer was notified of the failure, but no solution was offered. The failure mileage was 0. Vehicle purchase date should be on or before incident date.”
NHTSA complaint #11155667, filed 2018-12Mileage when problems were reported
75% of the 8 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 2,500 and 24,192 miles.
Complaints by year filed
Fewer than 15 complaints, too few for a reliable trend.
Recalls and investigations
- 18V437000Jun 28, 2018Child seat › Latch strapCovers: Cadillac CT6 Plug-In Hybrid 2017–2018, CT6 2016
General Motors LLC (GM) is recalling certain 2016-2018 Cadillac CT6 vehicles. The inboard child seat anchorage bars may have had excess structural adhesive applied during assembly, which can interfere with the installation of a child seat. As such, these…
Recall details for the 2017 Cadillac CT6 Plug-In Hybrid → · Check a VIN at nhtsa.gov/recalls
Technical service bulletins
TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 664 on record; the latest 10 are shown.
- 11037555Sep 26, 2026Other or unknown. This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- 11037253Sep 4, 2026Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11035340Jul 21, 2026Other or unknown. PI to help diagnose A/C concern
- 11030974Apr 1, 2026Other or unknown. This preliminary information communicates information about how to determine if a wheel and tires size change is available.
- 11030092Mar 9, 2026Other or unknown. This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
- 11030091Mar 9, 2026Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11027601Jan 8, 2026Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11025755Nov 20, 2025Other or unknown. This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit…
- 11023091Sep 9, 2025Other or unknown. New Vehicle Monitoring Programs Section in IVH
- 11024324Sep 4, 2025Electrical system, Fuel system. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
Other model years of the Cadillac CT6 Plug-In Hybrid
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2017 | 9 | 8,862 | 1 | — | — | — | Not enough data |
All Cadillac CT6 Plug-In Hybrid model years
Frequently asked questions
How many NHTSA complaints does the 2017 Cadillac CT6 Plug-In Hybrid have?
NHTSA recorded 9 consumer complaints for the 2017 Cadillac CT6 Plug-In Hybrid as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 2017 Cadillac CT6 Plug-In Hybrid is reported most often?
Transmission and drivetrain is named most often, in 7 complaints (78% of the total), followed by electrical system with 1.
Has the 2017 Cadillac CT6 Plug-In Hybrid been recalled?
NHTSA lists 1 recall campaign for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
At what mileage are problems with the 2017 Cadillac CT6 Plug-In Hybrid reported?
Among the 8 complaints that include a mileage, the median is 8,862 miles and the middle half falls between 2,500 and 24,192 miles; 75% were filed for vehicles with under 50,000 miles.
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.