2016 Cadillac CT6 Problems
- Complaints
- 11filed with NHTSA
- Median mileage
- 16,500miles, 5 complaints with mileage
- Recalls
- 3campaigns on record
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
- NHTSA crash rating
- —no overall rating published
- EPA fuel economy
- 25 mpgcombined, 2.0L 4-cyl RWD · 22 city / 30 hwy
Sources: NHTSA records for the 2016 Cadillac CT6 (complaints, recalls, investigations), EPA fuel economy. Report an error
NHTSA recorded 11 consumer complaints for the 2016 Cadillac CT6. The part named most often is transmission and drivetrain, with 6 complaints (55% of the total), followed by air bags (2) and engine (2). 5 of the complaints include a mileage, and 80% of those were filed for vehicles with under 50,000 miles; the median is 16,500 miles. Of all complaints, 3 involved a crash, 2 an injury, 1 a death, according to the filers. NHTSA lists 3 recall campaigns and 1,372 technical service bulletins for this model year. Transmission and drivetrain complaints overlap with 141 technical service bulletins filed under the same part. Air bags complaints overlap with 5 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.
- Air bags2 18%
- Engine2 18%
- Other or unknown2 18%
- Fuel system1 9.1%
- Suspension1 9.1%
- Wheels1 9.1%
Example complaints
Transmission and drivetrain: “Car will not respond for at least 2 seconds during a slow, rolling stop, when trying to accelerate again. Unable to perform evasive manuever, if needed, secondary to the delay to accelerator input. Harsh 2-1 downshifts also at slow speeds and can even feel as though you were struck from behind. Highway driving is excellent; city driving challenging with the transmission. The driver has to learn how to drive this vehicle. Find it very unusual after owning 5 other cadillacs and never had this problem. I bought this car as a pre-owned certified vehicle from Cadillac dealer. …”
NHTSA complaint #11144689, filed 2018-11, 750 milesAir bags: “Vehicle involved in a severe accident, airbags did not deploy. The vehicle was in motion on a hwy. Vehicle was struck by oncoming traffic and then launched into a ditch. None of the airbags deployed during the incident.”
NHTSA complaint #11408187, filed 2021-04, 58,000 milesEngine: “When I am turning under 25 MPH, I accelerate and there is a delay and a drag before the vehicle starts to accelerate. If I do not allow room, I could get hit because there is a delay. Very dangerous. Almost feels like a vacuum issue.”
NHTSA complaint #11351240, filed 2020-08, 16,500 milesOther or unknown: “This car has safety issues. I purchased a year ago. The axle and wheel broke off in on the car within 30 days. The car has huge manufacturer breakdown. It wouldn't start didn't care what gear it was in it was rolling and almost ran over my friend and ran off into a ditch. I have had several accidents in car due to the rear suspension. Shaking. I brought it in and no one can seem to duplicate it. …”
NHTSA complaint #11093258, filed 2018-05, 2,300 milesMileage when problems were reported
80% of the 5 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 2,300 and 19,000 miles.
Complaints by year filed
Fewer than 15 complaints, too few for a reliable trend.
Fuel economy and running cost
EPA ratings for each 2016 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).
| Version | Engine | Transmission | City | Hwy | Comb. | Fuel / yr |
|---|---|---|---|---|---|---|
| CT6 RWD | 2.0L 4-cyl | 8-speed automatic | 22 | 30 | 25 | $2,700 |
| CT6 AWD | 3.0L 6-cyl | 8-speed automatic | 18 | 26 | 21 | $3,900 |
| CT6 AWD | 3.6L 6-cyl | 8-speed automatic | 18 | 27 | 21 | $3,200 |
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
- 21V759000Sep 29, 2021Exterior lighting › HeadlightsCovers: Cadillac CT6 2016–2017
General Motors, LLC (GM) is recalling certain 2016-2017 Cadillac CT6 vehicles. The Park/Position lights may be excessively bright. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps…
- 18V437000Jun 28, 2018Child seat › Latch strapCovers: Cadillac CT6 2016, CT6 Plug-In Hybrid 2017–2018
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…
- 16V687000Sep 23, 2016Seat belts › Front › WebbingCovers: Cadillac CT6 2016
General Motors LLC (GM) is recalling certain model year 2016 Cadillac CT6 vehicles manufactured July 21, 2016, to July 22, 2016. The bolt that connects the front passenger seat belt webbing to the seat's anchor plate may be missing. Without the bolt, the…
Recall details for the 2016 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. 1,372 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.
- 11037550Sep 21, 2026Other or unknown. This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering
- 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.
- 11027689Jan 12, 2026Other or unknown. This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering
- 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…
Other model years of the Cadillac CT6
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2020 | 11 | 12,100 | 2 | — | 21 | — | Not enough data |
| 2019 | 17 | 58,000 | 4 | — | 28 | — | Rising |
| 2018 | 9 | 28,750 | 0 | — | 25 | — | Not enough data |
| 2017 | 17 | 10,000 | 1 | — | 25 | — | Stable |
| 2016 | 11 | 16,500 | 3 | — | 25 | — | Not enough data |
Frequently asked questions
How many NHTSA complaints does the 2016 Cadillac CT6 have?
NHTSA recorded 11 consumer complaints for the 2016 Cadillac CT6 as of Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 2016 Cadillac CT6 is reported most often?
Transmission and drivetrain is named most often, in 6 complaints (55% of the total), followed by air bags with 2.
Has the 2016 Cadillac CT6 been recalled?
NHTSA lists 3 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
What gas mileage does the 2016 Cadillac CT6 get?
The EPA rates the 2016 Cadillac CT6 (CT6, 2.0L 4-cyl) at 25 mpg combined, 22 city and 30 highway, with an estimated annual fuel cost of $2,700 at 15,000 miles a year. Other engine and drive versions are rated differently.
At what mileage are problems with the 2016 Cadillac CT6 reported?
Among the 5 complaints that include a mileage, the median is 16,500 miles and the middle half falls between 2,300 and 19,000 miles; 80% were filed for vehicles with under 50,000 miles.
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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.