Cadillac CT6 Best and Worst Years by Owner Complaints
We rank Cadillac CT6 model years by the number of owner complaints filed with NHTSA, from fewest to most. Complaint counts aren't failure rates: years that sold more cars, or that are older, can show more reports. We rank only model years at least five years old, because newer ones are still collecting reports. Among settled years shown, the 2018 drew the fewest (9) and the 2019 the most (17).
Complaints filed by model year
Every year compared
| Most-reported component | |||||
|---|---|---|---|---|---|
| 2018 Among the fewest complaints |
9 | 0 | Engine | — | 21–25 |
| 2016 Among the fewest complaints |
11 | 3 | Power train | — | 21–25 |
| 2020 Among the fewest complaints |
11 | 2 | Power train | — | 17–21 |
| 2017 Among the most complaints |
17 | 1 | Power train | — | 21–26 |
| 2019 Among the most complaints |
17 | 4 | Power train | — | 17–28 |
Sources: NHTSA ODI complaints, NHTSA recalls, NHTSA NCAP, EPA; retrieved Oct 6, 2026.
What owners reported in the Cadillac CT6 years with the most complaints
These settled model years drew the most owner complaints to NHTSA. The share in brackets is the part of that year’s complaints that names each component; one complaint can name several.
2019 Cadillac CT6: 17 complaints
Most-reported: Power train 14 (82%); Service brakes 2 (12%); Electrical system 1 (6%).
4 recall campaigns listed.
2017 Cadillac CT6: 17 complaints
Most-reported: Power train 10 (59%); Electrical system 4 (24%); Service brakes 2 (12%).
1 recall campaign listed.
2020 Cadillac CT6: 11 complaints
Most-reported: Power train 6 (55%); Service brakes 3 (27%); Forward collision avoidance 2 (18%).
Reports mention 1 crash. 2 recall campaigns listed.
The Cadillac CT6 years with the fewest complaints
2018 Cadillac CT6: 9 complaints
Most-reported: Engine 3 (33%); Power train 3 (33%); Fuel/propulsion system 2 (22%).
0 recall campaigns listed.
2016 Cadillac CT6: 11 complaints
Most-reported: Power train 6 (55%); Air bags 2 (18%); Engine 2 (18%).
Reports mention 3 crashes, 2 injuries, 1 death. 3 recall campaigns listed.
2020 Cadillac CT6: 11 complaints
Most-reported: Power train 6 (55%); Service brakes 3 (27%); Forward collision avoidance 2 (18%).
Reports mention 1 crash. 2 recall campaigns listed.
Crashes, fires and injuries in Cadillac CT6 owner reports
| Model year | Complaints | Crashes | Fires | Injuries | Deaths | Typical miles at filing |
|---|---|---|---|---|---|---|
| 2020 | 11 | 1 | 0 | 0 | 0 | — |
| 2019 | 17 | 0 | 0 | 0 | 0 | — |
| 2018 | 9 | 0 | 0 | 0 | 0 | — |
| 2017 | 17 | 0 | 0 | 0 | 0 | — |
| 2016 | 11 | 3 | 0 | 2 | 1 | — |
Owner-reported, not verified by NHTSA. “Typical miles” is the median odometer reading in complaints that gave one (shown when at least 10 did). Source: NHTSA ODI complaints, retrieved Oct 6, 2026.
Largest Cadillac CT6 recalls
- EBCM Software Error (2019 model year; 463,995 vehicles across all models; filed Dec 2019; 19V889000)
- Transmission Damage May Cause Wheel Lock-Up (2019–2020 model years; 90,081 vehicles across all models; filed Mar 2025; 25V148000)
- Excess Adhesive on Child Seat Anchor/FMVSS 225 (2016 model year; 22,043 vehicles across all models; filed Jun 2018; 18V437000)
- Rear Seatbelt Retractor May Not Lock/FMVSS 208 (2019 model year; 15,800 vehicles across all models; filed Sep 2018; 18V673000)
- Park/Position Lights Too Bright/FMVSS 108 (2016–2017 model years; 181 vehicles across all models; filed Sep 2021; 21V759000)
All 8 Cadillac CT6 recall campaigns · Cadillac CT6 problems, recalls and mpg by year · Used car inspection checklist
What the numbers can't tell you
- Sales volume. NHTSA publishes no sales figures with complaints, so a popular year draws more reports even if each car is no worse.
- Recent years are under-counted. Owners file reports for years after purchase; the newest model years will keep growing.
- The individual car. Maintenance, mileage and repairs matter more for one used car than any model-year average. Get a pre-purchase inspection and check open recalls by VIN.
Cadillac CT6 years FAQ
Which Cadillac CT6 year has the fewest complaints?
Among the model years shown whose counts have settled, the 2018 has the fewest owner complaints filed with NHTSA (9). That is a count of reports, not a measure of reliability.
Does fewer complaints mean a more reliable car?
Not necessarily. Complaint counts depend on how many cars were sold, how old they are and how many owners file reports. Use them to spot patterns worth asking about, alongside recalls, crash tests and a pre-purchase inspection.
Are there Cadillac CT6 years to avoid?
No model year is officially one to avoid. By owner complaints to NHTSA, the settled years with the most reports are the 2019, 2017 and 2020 models, and across all years the most-reported problem area is the power train. Compare those years with the ones that drew the fewest reports, then check any specific car for open recalls by VIN and get a pre-purchase inspection.
What is the most common Cadillac CT6 problem?
Across the model years shown, owners most often report problems with the power train (39 of 65 complaints list it). Each model-year report breaks the complaints down by component.
How many recalls does the Cadillac CT6 have?
NHTSA lists 8 recall campaigns covering the Cadillac CT6. See every one, with official wording and repair rates, on the Cadillac CT6 recall page.
Why are newer years left out of fewest and most?
Owners keep filing complaints for years after a car is sold. We mark the two newest model years as still collecting reports, and we only rank years that are at least five years old.
How this page was madeSources, processing, limits, review and changes
Data sources
- NHTSA recalls by vehicle
Retrieved Oct 6, 2026 - US DOT recall completion rates (data.transportation.gov)
Retrieved Oct 6, 2026 - NHTSA ODI owner complaints
Retrieved Oct 6, 2026 - NHTSA NCAP 5-Star Safety Ratings
Retrieved Oct 6, 2026 - EPA fuel economy data (licence confirmation pending)
Retrieved Oct 6, 2026 - EIA weekly retail gasoline prices
Weekly, all taxes included
Processing
- Complaints are counted per component. One complaint can list several, so component totals add up to more than the total.
- Fuel cost = miles per year ÷ EPA combined mpg × EIA weekly price for your region.
Limitations
- Complaint counts are owner reports, not verified findings or failure rates. There is no sales denominator.
- Recall campaigns are listed for the model year. Only NHTSA and the automaker know whether a specific car was repaired.
- Recent model years are still collecting reports.
Review
Data compiled automatically from the official files listed here.
Changelog
- 2026-10-06 Data refreshed from the official files.