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Cadillac CT6Model year report

2019 Cadillac CT6 Problems

Complaints
17filed with NHTSA
Median mileage
58,000miles, 9 complaints with mileage
Recalls
4campaigns on record
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA crash rating
—no overall rating published
EPA fuel economy
28 mpgcombined, 2.0L 4-cyl RWD · 24 city / 34 hwy

Sources: NHTSA records for the 2019 Cadillac CT6 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 17 consumer complaints for the 2019 Cadillac CT6. The part named most often is transmission and drivetrain, with 14 complaints (82% of the total), followed by brakes (2) and electrical system (1). 9 of the complaints include a mileage, and 33% of those were filed for vehicles with under 50,000 miles; the median is 58,000 miles. NHTSA lists 4 recall campaigns and 875 technical service bulletins for this model year. Transmission and drivetrain complaints overlap with 1 recall campaign and 107 technical service bulletins filed under the same part. Brakes complaints overlap with 1 recall campaign and 44 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.

Example complaints

Transmission and drivetrain: “On several separate occasions, my Cadillac CT 6 which has been under recall for months by General Motors does not have an adequate repair for the repair shops authorized by the manufacturer, namely GM franchised Cadillac dealer repair shops and hence I am unable to have my vehicle repaired because the franchised GM dealers inform me that due to the recall and General Motor’s refusal or inability to provide specific reason for the transmission failure and the automobile not being able to shift into park when it is on an incline has rolled backwards when my door was open. …”

NHTSA complaint #11660579, filed 2025-05

Mileage when problems were reported

33% of the 9 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 47,000 and 77,000 miles.

22%0–100%10–2511%25–5033%50–7533%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (9 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 58,000 miles.

Complaints by year filed

Trend: rising. Complaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

20192025132026
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Fuel economy and running cost

EPA ratings for each 2019 Cadillac CT6 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
CT6 RWD2.0L 4-cyl10-speed automatic243428$2,950
CT6 AWD3.0L 6-cyl10-speed automatic182621$3,900
CT6 AWD3.6L 6-cyl10-speed automatic182721$3,200
CT6 AWD4.2L 8-cyl10-speed automatic142517$4,850

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

Recall details for the 2019 Cadillac CT6 → · 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. 875 on record; the latest 10 are shown.

See all 875 bulletins →

Other model years of the Cadillac CT6

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20201112,1002—21—Not enough data
20191758,0004—28—Rising
2018928,7500—25—Not enough data
20171710,0001—25—Stable
20161116,5003—25—Not enough data

All Cadillac CT6 model years

Frequently asked questions

How many NHTSA complaints does the 2019 Cadillac CT6 have?

NHTSA recorded 17 consumer complaints for the 2019 Cadillac CT6 as of Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2019 Cadillac CT6 is reported most often?

Transmission and drivetrain is named most often, in 14 complaints (82% of the total), followed by brakes with 2.

Has the 2019 Cadillac CT6 been recalled?

NHTSA lists 4 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2019 Cadillac CT6 get?

The EPA rates the 2019 Cadillac CT6 (CT6, 2.0L 4-cyl) at 28 mpg combined, 24 city and 34 highway, with an estimated annual fuel cost of $2,950 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2019 Cadillac CT6 reported?

Among the 9 complaints that include a mileage, the median is 58,000 miles and the middle half falls between 47,000 and 77,000 miles; 33% were filed for vehicles with under 50,000 miles.

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. Fuel economy is from the EPA and DOE (fueleconomy.gov).

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.