2016 Cadillac CT6: Recalls, Problems & MPG
Here are the deets on the 2016 Cadillac CT6: 3 recalls, 11 owner complaints and up to 25 mpg combined.
Recalls
3 vehicle recalls from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.
Seat belts Vehicle recall #16V687000 · 2016 · 131 vehicles
What's wrong: The bolt that connects the front passenger seat belt webbing to the seat's anchor plate May be missing. Without the bolt, the seat belt webbing May detach from the seat anchor.
Why it matters: If the seat belt webbing detaches from the seat anchor, the seat belt May not properly restrain the front seat passenger in the event of a crash, increasing the risk of injury.
The fix: Gm will notify owners, and dealers will replace the existing front passenger seat belt webbing anchor bolt, or install a bolt if it is missing, free of charge. The recall began on September 24, 2016.
Child seat, Seats Vehicle recall #18V437000 · 2018 · 22,043 vehicles
What's wrong: 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 vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (fmvss) number 225, "child restraint anchorage systems."
Why it matters: If the child seat cannot be attached correctly to the anchorage bar, there is an increased the risk of injury.
The fix: Gm will notify owners, and dealers will inspect, remove any excess adhesive, and apply anti-corrosion primer to the inboard child seat anchorage bars, free of charge. The recall began August 3, 2018.
Exterior lights, Exterior lights Vehicle recall #21V759000 · 2021 · 181 vehicles
What's wrong: 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, reflective devices, and associated equipment."
Why it matters: The excessive brightness May affect the vision of other drivers, increasing the risk of a crash.
The fix: Dealers will install right and left side in-line headlight jumper harnesses, free of charge. Owner notification letters were mailed November 3, 2021.
Most-reported problems
Owner complaints filed with NHTSA, by component. One complaint can list several components. 0 mention a fire, 2 injuries and 1 deaths were reported.
What owners describe
- Transmission & drivetrain (6): the most common themes are hard / delayed shifting (6).
- Other / unknown (2): no single recurring theme in the descriptions.
- Engine (2): no single recurring theme in the descriptions.
- Airbags (2): the most common themes are fails to deploy (2).
The 2016 Cadillac CT6 has 11 owner complaints, ranking #3 of 5 CT6 model years for complaints (about average; the typical year has 13). Complaints peaked in 2025 (4 filed that year). The typical problem showed up when the car was about 5 years old, at a median of 16,500 miles. Neighboring years: 2017 (17 complaints, 1 recalls).
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 2.0 L 4-cyl turbo | Automatic (S8) | Rear-Wheel Drive | 22 | 30 | 25 | Regular |
Want the full repair deets? Get the factory manual.
Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 2016 Cadillac CT6.
Closest thing to the factory manual for most years. Pay once, keep it.
Most $25–$78, one-timePro-shop repair procedures, wiring diagrams and TSBs for your exact car.
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FAQ
Does the 2016 Cadillac CT6 have any recalls?
Yes. NHTSA lists 3 vehicle recalls for the 2016 Cadillac CT6. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.
What are the most common 2016 Cadillac CT6 problems?
Owners have filed 11 complaints with NHTSA. The most-reported areas are transmission & drivetrain (6), other / unknown (2), engine (2).
What gas mileage does the 2016 Cadillac CT6 get?
EPA ratings run up to 25 mpg combined (2.0 L, Automatic (S8)), across 1 engine and transmission combos.
Where can I get a 2016 Cadillac CT6 repair manual?
eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.