RoadVitals

2017 Cadillac CT6

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
17
Latest May 20, 2026
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
1
Latest Sep 29, 2021
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0

Overview

Our database contains 17 NHTSA owner-reported complaints for the 2017 Cadillac CT6, most frequently naming the powertrain (other), electrical and driver assistance categories. 1 safety recall has been issued covering this model year; and 661 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

  • Powertrain (other)1037.0%
  • Electrical414.8%
  • Driver assistance311.1%
  • Brakes27.4%
  • Steering13.7%
  • Suspension13.7%
  • Tires & wheels13.7%
  • Body & structure13.7%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

1 campaign cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
21V759000

EXTERIOR LIGHTING; EXTERIOR LIGHTING:HEADLIGHTS

Sep 29, 2021
181 units potentially affected
The defect: 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."
The risk: The excessive brightness may affect the vision of other drivers, increasing the risk of a crash.
The 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.
General Motors, LLCManufacturer number N162016079View on NHTSA.gov

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

View all 17
Other / unspecifiedPowertrain (other)Suspension
Filed May 20, 2026

UNKNOWN, The transmission slips,it wont drive now and my wheel barrings nearly snapped

NHTSA ID
11738945
Incident
May 14, 2026
Driver assistancePowertrain (other)
Filed Jan 29, 2026

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.

NHTSA ID
11714281
Incident
Jun 15, 2018
Fuel system
Filed Nov 21, 2025

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 Maffei(AI inquiry reveals known and past problems with Cadillac EVAP systems)

NHTSA ID
11700820
Incident
Oct 7, 2025
Driver assistance
Filed Apr 18, 2025

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 can’t find the issue they changed the oil pan and the transmission lines . My vehicle is a 2017 Cadillac ct6 with 72027 miles . I’ve 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 doesn’t come with guards and another stating the job he did not require him to remove splash guard but that is not true .

NHTSA ID
11655564
Incident
Apr 2, 2025
Body & structureElectrical
Filed Mar 20, 2025

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

NHTSA ID
11649426
Incident
Feb 12, 2025
Driver assistanceElectricalPowertrain (other)
Filed Nov 21, 2024

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.

NHTSA ID
11626548
Incident
Oct 15, 2024
BrakesPowertrain (other)
Filed Jun 22, 2024

Transmission - Jerks and studders (hesitation) in the course of normal driving. Brakes - Makes a squealing noise which has gotten louder over time.

NHTSA ID
11595865
Incident
Sep 29, 2023
Powertrain (other)
Filed Jul 16, 2023

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.

NHTSA ID
11532575
Incident
Jul 11, 2023

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

PIT5099J

PI to help diagnose A/C concern

PIT3271Q

This preliminary information communicates information about how to determine if a wheel and tires size change is available.

PIP4902V

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

PIP6104

This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.

PIP5700G

This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering

PIP4902U

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Cadillac CT6 by model year
YearComplaintsRecallsInvestigationsIssue Index
2021000—
2020112050.4
2019164051.5
2018900—
2017Viewing171043.9
2016113063.0
2015000—
2014000—
2013000—

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.