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Cadillac · NHTSA safety record

2018 Cadillac CT6

Every safety complaint, recall and defect investigation the US government holds on this vehicle.

Owners have filed 9 safety complaints about the 2018 Cadillac CT6 with the US government. Of those, no death is recorded. 2 recall campaigns are open against it, covering the seat belts and the seats.

The most complained-about system is the engine, named in 3 complaints, 33% of the total.

Compiled from NHTSA's complaint, recall and investigation files · Covers January 2021 to August 2026 · How this is counted

What is on file

9 complaints on file

9

Complaints

0

Describe a crash

0

Mention fire

0

People injured

0

Deaths

A complaint is an unverified account by the person who filed it, not a finding of fault. One complaint is one ODI number, which is how NHTSA counts them.

A recall is the manufacturer conceding a defect, and the repair is free. Whether one covers your particular car is a question only its VIN can answer, because a campaign covers a production range rather than a model year.

Which system owners named

Complaints naming each system
ENGINE 3 · 33%
POWER TRAIN 3 · 33%
FUEL/PROPULSION SYSTEM 2 · 22%
STEERING 2 · 22%
EXTERIOR LIGHTING 1 · 11%
FORWARD COLLISION AVOIDANCE 1 · 11%
LANE DEPARTURE 1 · 11%
SERVICE BRAKES 1 · 11%
STRUCTURE 1 · 11%
SUSPENSION 1 · 11%
0 4 8

Red marks a system with a recall campaign against it. One complaint can name several systems, so these add up to more than 9.

When the complaints arrived

By the year NHTSA received them

By the year NHTSA received them, which is not the year the failures happened. They peaked in 2026 at 3.

4 3 2 1
21 23 24 25 26

This is the year the complaint was filed, not the year the failure happened. The range runs from 2021 to 2026, the last of them a part year, which is why its column is drawn faint.

Crash test ratings

NHTSA New Car Assessment Program

NHTSA has not crash tested the 2018 Cadillac CT6. Its New Car Assessment Program tests a selection of each year's vehicles and does not reach motorcycles, heavy trucks, motorhomes or most low-volume models, so an absence here says nothing about how the vehicle would perform. It is not a low score.

What owners have reported about this vehicle is below, and it is a different question: a crash test measures what happens to the people inside in a controlled impact, while a complaint records what broke during ordinary use.

Recall campaigns

2 on file

SEAT BELTS:REAR/OTHER

18V673000 · September 26, 2018

The defect
General Motors LLC (GM) is recalling certain 2018-2019 Cadillac CT6, Escalade ESV, Chevrolet Suburban, Volt, and GMC Yukon XL vehicles. Certain second-row or third-row rear seatbelts retractor assemblies may not automatically lock when the seatbelt is fully pulled out of the retractor, possibly preventing a child seat from being properly secured. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."
The risk
If the child seat is not properly secured in the event of a crash, it can increase the risk of injury.
The remedy
GM will notify owners, and dealers will inspect the rear seatbelt retractors and replace them if necessary, free of charge. The recall began November 7, 2018. Owners may contact Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is 18315.

General Motors LLC · up to 15,800 vehicles across all model years covered

SEATS:MID/REAR ASSEMBLY

18V437000 · June 28, 2018

The defect
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 vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 225, "Child Restraint Anchorage Systems."
The risk
If the child seat cannot be attached correctly to the anchorage bar, there is an increased the risk of injury.
The remedy
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. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is 18228.

General Motors LLC · up to 22,043 vehicles across all model years covered

In owners’ own words

Quoted from the complaint file

Quoted from NHTSA's complaint file. These are unverified accounts by the people who filed them, not findings of fault.

STRUCTURE:BODY

towed

Yes my car was sold to me with structural damages, and I was told any of this when I purchased it!!!!

NHTSA complaint 11572148. Filed by an owner and not verified by NHTSA or by us.

FUEL/PROPULSION SYSTEM
During refueling the gas station pumping nozzle would shut off indicating a full gasoline fuel tank; but, the dash board fuel gage indicated the fuel was not full. Had to dribble in fuel to fill. Dealer Mechanic found: Crash roll over gasoline vent safety valve was stuck in the crashed roll over cut off state. No gas tank ventilation. This caused back pressure in car gasoline tank to shut off gas station filler nozzle as though the car was full . Entire gas tank had to be replaced. Still under warranty.

NHTSA complaint 11755393. Filed by an owner and not verified by NHTSA or by us.

POWER TRAIN
When vehicle was purchased new there was a slight bearing wear noise at the front driver side, which grew louder with years. Noise synchronized with tire rolling rpm. Replacing (my self) front trans axle, the brake pads, shaving rotors, & wheel hub bearing did not fix noise. Next; Dealer shop reported that the AWD front transfer case (differential) had a bad bearing AND that this was a common problem with the model car. $1600 repair bill.

NHTSA complaint 11755395. Filed by an owner and not verified by NHTSA or by us.

ENGINE
Stuck Thermostat. Vehicle not achieving operating temperature in the correct time. ALL 3 of the people I know with CT-6's had the exact same issue this year.

NHTSA complaint 11745961. Filed by an owner and not verified by NHTSA or by us.

POWER TRAIN
Front differential case ripped in half and separated from the ring gear. The broken chunk of differential case and pinion was still attached to the driveshaft while coming to an abrupt stop. Damage done within driveshaft tunnel. No warning, no vibration, no cause for concern, just catastrophic failure. Differential and propeller shaft were replaced by an independent mechanic. Cadillac has not been notified as of today, receipt for repair available upon request.

NHTSA complaint 11707182. Filed by an owner and not verified by NHTSA or by us.

SERVICE BRAKES
The brake makes a rattling and metal grinding sound, the dealership said nothing is wrong with the brakes, still problematic. The transmission shifts too hard. Dealer said nothing wrong. Yet cat kicks too hard.

NHTSA complaint 11508253. Filed by an owner and not verified by NHTSA or by us.

Compare

Other years of the Cadillac CT6

Model year Complaints Recalls Deaths
2020 11 2 —
2019 17 4 —
2017 17 2 —
2016 11 3 1

Other 2018 Cadillac models

XT5 66 ATS 21 Escalade 21 Escalade ESV 15 CTS 8

Complaints on file, same model year.

Every Cadillac on this site — 97 vehicles.

If this is your car and a dealer keeps failing to fix it, your state's lemon law may require the manufacturer to replace it or buy it back. How many repair attempts it takes, and how long you have to file, is set by the state you bought in and by nothing on this page.

Where these numbers come from

A complaint is one owner's account and has not been verified by NHTSA or by us. A vehicle with more complaints is not necessarily worse: models that sold in larger numbers collect more of them. How this is counted.

Compiled and maintained by
Independent developer and analyst