Model year record

2017 Cadillac CT6 recalls & problems

The 2017 Cadillac CT6 has 1 safety recall and 17 owner complaints on file with NHTSA. The most-reported problem area is power train (10 complaints).

Recalls1safety recalls

Complaints17filed by owners

Crashes · fires0 · 0reported in complaints

Injuries · deaths0 · 0reported in complaints

Safety recalls

Exterior lightingSep 29, 2021

Headlights

Recall 21V759000181 vehicles

Problem: 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, Reflective Devices, and Associated Equipment."
Risk: The excessive brightness may affect the vision of other drivers, increasing the risk of a crash.
Fix: Dealers will install right and left side in-line headlight jumper harnesses, free of charge. Owner notification letters were mailed November 3, 2021. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is N162016079.

Components: Exterior lighting › Headlights; Exterior lighting

Recall repairs are free at any authorised dealer. A recall listed here may already have been fixed on a particular car: enter its 17-character VIN at nhtsa.gov/recalls to see open recalls.

Crash test ratings

2017 Cadillac CT6 4DR AWD

OverallNot Rated

Frontal crash	Not Rated
Side crash	Not Rated
Rollover	Not Rated

Forward collision warning: Optional · Lane departure warning: Optional

2017 Cadillac CT6 4DR RWD

OverallNot Rated

Frontal crash	Not Rated
Side crash	Not Rated
Rollover	Not Rated

Forward collision warning: Optional · Lane departure warning: Optional

2017 Cadillac CT6 Hybrid 4DR AWD

OverallNot Rated

Frontal crash	Not Rated
Side crash	Not Rated
Rollover	Not Rated

Forward collision warning: Standard · Lane departure warning: Standard

NHTSA 5-Star Safety Ratings (New Car Assessment Program). Ratings are comparable only between vehicles of similar size and weight, and ratings from 2011 on use tougher tests than earlier years. Photos: NHTSA.

Fuel economy

CT6 Plug-In Plug-in Hybrid

26mpg combined

City / highway	23 / 29 mpg
Electric range	31 mi
On electricity	62 MPGe · 54 kWh/100 mi
Fuel	Premium Gasoline

2 L · 4 cyl · Automatic (variable gear ratios) · Rear-Wheel Drive · about $3,150/year to fuel

CT6

25mpg combined

City / highway	22 / 30 mpg
Fuel	Premium Gasoline

2 L · 4 cyl · Automatic (S8) · Rear-Wheel Drive · about $3,300/year to fuel

CT6 AWD

21mpg combined

City / highway	18 / 27 mpg
Fuel	Regular Gasoline

3.6 L · 6 cyl · Automatic (S8) · All-Wheel Drive · about $3,200/year to fuel

CT6 AWD

21mpg combined

City / highway	18 / 26 mpg
Fuel	Premium Gasoline

3 L · 6 cyl · Automatic (S8) · All-Wheel Drive · about $3,900/year to fuel

EPA estimates from fueleconomy.gov for each engine and transmission sold. Annual cost is the EPA's estimate for 15,000 miles a year at its current fuel and electricity price assumptions. Your results will vary.

What owners report

Problem area	Complaints	Typical mileage*
Power train	10	6,000 mi
Electrical system	4	—
Service brakes	2	—
Vehicle speed control	2	—
Engine	1	—
VisibilitySun/moon roof assembly	1	—
Unknown or other	1	—
Steering	1	—
Tires	1	—
Forward collision avoidanceAdaptive cruise control	1	—
StructureBody	1	—
Fuel/propulsion system	1	—

*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.

Recent owner complaints

Power train
UNKNOWN, The transmission slips,it wont drive now and my wheel barrings nearly snapped
May 14, 2026
Power train
The vehicle experiences harsh shifting, surging, and jerking forward during normal driving conditions. The behavior has occurred repeatedly over several years and has been confirmed by the dealership. Multiple repair attempts, including transmission-related work, have not resolved the issue. The vehicle has surged forward unexpectedly, creating near-miss accident situations. I no longer feel the vehicle is safe to operate.
Jun 15, 2018
Fuel/propulsion system
My CT6 had a default engine light on,.Dealer reports broken EVAP line.Car has never been in an accident or damaged.Upon inquiry dealer reports no issues known to them with this problem.However ,this same vehicle had transmission issue when purchased new and the dealer stated same findings.Then recall was issued and transmission was repaired for a known problem and repaired under a recall notice.My concern is this may be similar situation with the fuel EVAP system.The vehicle is my primary car and a fuel vapor leak is a grave concern to me and I believe posses a risk, especially as the replacement parts are unavailable at this time.I have filed an inquiry with Cadillac/Gm #82543696 Steven…
Oct 7, 2025
Vehicle speed control
My vehicles transmission has a buzzing noise coming from the transmission oil pan and a gear shifting problem I took vehicle to Cadillac dealer whom canât find the issue they changed the oil pan and the transmission lines . My vehicle is a 2017 Cadillac ct6 with 72027 miles . Iâve been to 4 Cadillac certified dealers and none can locate to problem . Thank you . Also I would like to add that Cadillac open road In New Jersey has taken off my splash guards and would not return them . I have a video of the manager claiming the car doesnât come with guards and another stating the job he did not require him to remove splash guard but that is not true .
Apr 2, 2025
Electrical system
Water is getting into my trunk where the amp is and now my radio does not work only the back up camera. I cannot control the AC or turn on the air conditioner. Or is that how I would like it to blow
Feb 12, 2025
Electrical system
These vehicles have an issue tbat GM is aware of, with their 8 speed automatic transmissions which are used in multiple GM vehicles and these cause safety issues because for instance my vehicle switches gears randomly almost causing a wreck, and shuttering, and even slipping and when this happens the cars traction control light is engaged shutting it off, active steering is also shut off due to these on going issues. Im in a cadillac group and hundreds of us have similar issues.
Oct 15, 2024
Service brakes
Transmission - Jerks and studders (hesitation) in the course of normal driving. Brakes - Makes a squealing noise which has gotten louder over time.
Sep 29, 2023
Power train
The car is equipped with an 8-Speed Automatic Transmission which is frequently very hard shifting from 1st to 2nd gear. The car has been to my local Cadillac Dealer twice for this problem; they reply this is a know problem, and a normal condition, but the problem is getting worse. I'm concerned for the future and afraid of an accident because of a transmission failure.
Jul 11, 2023

Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.