Cadillac CT6: Years to Avoid and Best Years to Buy
Cadillac CT6: 5 model years scored from 76 NHTSA owner complaints and 13 recall campaigns. Worst year 2019, best year 2016.
Cadillac CT6: which years to avoid
Across 5 scored model years the Cadillac CT6 ranges from 80/100 in 2019 to 88/100 in 2016 — a 8-point spread, so which year you buy matters. The weakest year’s complaints concentrate in Power Train (13 of them).
Safest years: 2016, 2017, 2018, 2019, 2020 — scored 70 or better.
Scored from NHTSA complaints per year of exposure and recall campaigns. How the score works · every car’s years to avoid.
Year-by-year data table
Best year in our data: 2016 (score 88). Worst: 2019 (score 80, BUY).
| Year | Score | Verdict | Running cost / yr | NHTSA complaints | Recalls |
|---|---|---|---|---|---|
| 2020 | 88 | BUY | $4,214 | 11 | 2 |
| 2019 | 80 | BUY | $4,113 | 16 | 4 |
| 2018 | 88 | BUY | $4,588 | 12 | 2 |
| 2017 | 81 | BUY | $4,754 | 26 | 2 |
| 2016 | 88 | BUY | $4,260 | 11 | 3 |
Running cost is fuel or energy plus the maintenance band midpoint for that car at its age today, re-priced to your country. Purchase price, insurance and depreciation are not included.
Photographs and every generation of the CT6, through the years →
CT6 sub-models & family
Variants & trims on record
Body, powertrain and trim variants of the CT6 on the federal record. Variants folded into this nameplate are counted in this page's data; the rest have too thin a record for a page of their own yet.
What goes wrong on the Cadillac CT6
Across every CT6 model year in our index, owners report these component groups most often. The cost beside each one is the representative repair for that group at a US independent shop, re-priced to your country.
- Power Train46 complaints across all CT6 years · typical job: Transmission service or clutch-pack repair$1,290–$4,040
- Engine8 complaints across all CT6 years · typical job: Cooling-system or timing-drive repair$1,040–$2,220
- Service Brakes7 complaints across all CT6 years · typical job: Pads, rotors and caliper service, both axles$580–$1,140
- Electrical System6 complaints across all CT6 years · typical job: Alternator, battery-drain or body-module diagnosis and replacement$540–$1,310
- Structure4 complaints across all CT6 years · typical job: Body, subframe or corrosion repair$1,070–$2,920
- Unknown Or Other3 complaints across all CT6 years · typical job: Diagnosis and mixed repair$360–$940
Flat-rate labour hours x local shop rate plus a parts band. An estimate of what this class of failure costs, not a quote. Formula.
FAQ
What are the best Cadillac CT6 years to buy?
2016, 2017, 2018, 2019, 2020 all score 70 or better. The strongest is the 2016 at 88/100, on 11 complaints and 3 recall campaigns.
Which Cadillac CT6 years should I avoid?
The 2019 is the weakest year we score, at 80/100 (BUY), on 16 complaints and 4 recalls. Check the year-by-year table above before committing to any particular car.
What is the most common Cadillac CT6 problem?
46 of the complaints filed against the CT6 across all its model years sit in the Power Train group — more than any other component.
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Sources: NHTSA, EPA · Methodology · Updated 2026-10-04