2017 Cadillac CT6: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
17 owner complaints analyzed
1 distinct recall campaigns
10,000 mi median reported failure mileage
Scope: 2017 model year. Data snapshot: . 4 complaints include usable failure mileage.
Most common problems
Power Train is the most frequently named component, appearing in 10 of 17 complaints (58.8%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Transmission and shifting | 9 | 52.9% |
| Braking behavior | 2 | 11.8% |
| Steering behavior | 2 | 11.8% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Power Train | 10 |
| Electrical System | 4 |
| Service Brakes | 2 |
| Vehicle Speed Control | 2 |
| Engine | 1 |
| Forward Collision Avoidance: Adaptive Cruise Control | 1 |
| Fuel/Propulsion System | 1 |
| Steering | 1 |
Power Train: 10; Electrical System: 4; Service Brakes: 2; Vehicle Speed Control: 2; Engine: 1; Forward Collision Avoidance: Adaptive Cruise Control: 1; Fuel/Propulsion System: 1; Steering: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 3 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 1 |
| 150,000 and above | 0 |
Under 25,000: 3; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 1; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (3). 13 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 3 |
| 2026 | 2 |
2020: 2; 2021: 3; 2022: 3; 2023: 2; 2024: 2; 2025: 3; 2026: 2
Pattern summary
Power Train leads the component reports. Transmission and shifting appears in 9 complaint narratives. Braking behavior appears in 2 complaint narratives. Steering behavior appears in 2 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11328598 · 2020-06-12 (June 12, 2020)
WHEN AUTO STOP IS ENGAGE TAKING YOUR FOOT OFF THE BRAKE PEDAL FROM A COMPLETE STOP WHEN THE ENGINE STARTS BACK UP IT HAS A HARSH JERK SOMETIMES, IT FEELS AS THOUGH SOMEONE HAS HIT YOU FROM THE REAR. THIS BEEN GOING ON FOR THREE YEARS THE CAR HAS BEEN IN SERVICE TWICE FOR THIS PROBLEM THE SERVICE TECHNICIAN CANNOT DUPLICATE IT. *TR
Owner-reported narrative. 6,000 miles reported. Look up ODI 11328598 at NHTSA ↗
Owner report 11339080 · 2020-07-13 (July 13, 2020)
TL* THE CONTACT OWNS A 2017 CADILLAC CT6. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 67 MPH, THE SUN ROOF EXPLODED WITHOUT IMPACT. THE VEHICLE WAS TAKEN TO HILL CADILLAC LOCATED AT 3964 WEST CHESTER PIKE, NEWTOWN SQUARE, PA 19073, WHERE THE TECHNICIAN TOOK PICTURES TO SEND TO THE MANUFACTURER. THE CONTACT WAS INFORMED THAT THE WARRANTY HAD EXPIRED. THE CONTACT WAS NOT GIVEN A CALLBACK. THE MANUFACTURER WAS CONTACTED AND THE CONTACT WAS TRANSFERRED TO A NON-WORKING NUMBER. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMAT…
Owner-reported narrative. 114,000 miles reported. Look up ODI 11339080 at NHTSA ↗
Owner report 11396532 · 2021-02-16 (February 16, 2021)
WHEN YOU PT IN THE REVERVE THE OUT SIDE MIRRORS DID NOT TILTED , AND SOME TIME THE PARKING BREAK LIGHT ON
Owner-reported narrative. Look up ODI 11396532 at NHTSA ↗
Owner report 11405442 · 2021-03-29 (March 29, 2021)
MY 2017 CADILLAC CT6 3.0 TT PREMIUM LUXURY HAS HAD THIS ISSUE SINCE I PURCHASED IT. DEALERSHIP STATE THAT THIS IS NORMAL AND I SHOULD LIVE WITH IT. IF I KNEW THIS BEFORE I PURCHASE THIS $98,000 VEHICLE I WOULD HAVE GONE MERCEDES-BENZ. THE ISSUES WITH THE 8-SPEED 8L90 GM TRANSMISSION ARE TWO-FOLD. FIRST, THE TRANSMISSION SHUDDERS FREQUENTLY. SECONDLY, THE SHIFTS ARE VERY HARSH BETWEEN FIRST TO SECOND, AND THEN SECOND DOWN TO FIRST, ESPECIALLY WHEN ACCELERATING AND THE TRANSMISSION IS UPSHIFTING OR DECELERATING AND THE TRANSMISSION IS DOWNSHIF…
Owner-reported narrative. 500 miles reported. Look up ODI 11405442 at NHTSA ↗
Owner report 11422881 · 2021-06-30 (June 30, 2021)
Steering rack bound up and became extremely difficult to move, causing vehicle to leave roadway. Power assist failed and manual mode would not allow steering to left making it nearly impossible to control direction of vehicle.
Owner-reported narrative. Look up ODI 11422881 at NHTSA ↗
Owner report 11458017 · 2022-03-23 (March 23, 2022)
The contact owns a 2017 Cadillac CT6. The contact stated that while driving at various speeds, the vehicle would hesitate upon depression of the accelerator pedal without warning. The contact had taken the vehicle to a dealer where they initially changed the transmission fluid and reprogrammed the transmission module; however, the failure persisted. The contact returned the vehicle to the dealer and she was informed that the torque converter was defective; but that the cost to replace the transmission was expensive. She was advised to bring the…
Owner-reported narrative. 14,000 miles reported. Look up ODI 11458017 at NHTSA ↗
Owner report 11488585 · 2022-10-10 (October 10, 2022)
While driving the vehicle with auto stop engaged, the auto stop was malfunctioning. When I get to a red light or stop sign vehicle would engage auto stop, once I let my feet off the gas pedal and accelerate, the vehicle would jerk out of gear then slip /drag then engage with a loud hit as if someone rear-ended me. The problem was duplicated and confirmed by the dealership. There has been no outside inspection other than the dealership. No warning lights messages prior to failure. In addition, the Auto-stop working with a week of this complain…
Owner-reported narrative. Look up ODI 11488585 at NHTSA ↗
Owner report 11488586 · 2022-10-10 (October 10, 2022)
I was driving the vehicle heading to the interstate, and my speed was about 15 MPH, as I merge onto the highway and accelerated I felt the transmission shudder, and lag with a humming noise. It felt like the transmission mission was slipping and shaking with no acceleration power. I had to keep hitting the gas pedal to try and make the transmission engage. Very Dangerous! The transmission would also throw you back and jerk when accelerating violently. The transmission lunges forward and jerks into gears when starting from 0 mph.
Owner-reported narrative. Look up ODI 11488586 at NHTSA ↗
Recall history
1 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
21V759000 · Exterior Lighting:Headlights | Exterior Lighting
Reported: 2021-09-29 (September 29, 2021)
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."
Consequence: The excessive brightness may affect the vision of other drivers, increasing the risk of a crash.
Remedy: 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.
NHTSA campaign record ↗