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2019 Cadillac CT6

Trims, performance, features, fuel economy, safety and known problems — with the pros and cons against similar 2019 models.

Cadillac CT6
Pictured: 2018 Cadillac CT6 Premium Luxury AWD Super Cruise, front right. Photo: Mr.choppers, CC BY-SA 3.0, via Wikimedia Commons
Class
Large Cars
Body styles
Luxury AWD 4dr Sedan, Platinum AWD 4dr Sedan, Premium Luxury AWD 4dr Sedan, Sport AWD 4dr Sedan
Engines
2.0L 4-cyl turbo, 3.6L 6-cyl, 3.0L 6-cyl turbo, 4.2L 8-cyl turbo
Drivetrain
Rear-Wheel Drive, All-Wheel Drive
Fuel
Premium Gasoline, Regular Gasoline
MPG (best)
28 combined · 24 city / 34 hwy
Length
205.9 in
Curb weight
3,986–4,427 lb
NHTSA rating
Not rated
Recalls
4 campaigns

Pros & cons

What's good

  • Excellent fuel economyUp to 28 MPG combined — 24% better than the average 2019 large car (22.6 MPG).
  • AWD / 4WD available

Watch out for

No weak spots against similar models in the data.

Calculated from EPA, NHTSA and vPIC data against 12 similar 2019 models — not a review. How we calculate this →

Overview

The 2019 Cadillac CT6 is a large car offered with 4 engines (2.0L 4-cyl turbo, 3.6L 6-cyl, 3.0L 6-cyl turbo and 4.2L 8-cyl turbo) and rear-wheel drive and all-wheel drive.

It measures about 206 inches long and 74 inches wide on a 122-inch wheelbase, with a curb weight of roughly 3,986 lb (Luxury AWD 4dr Sedan).

EPA rates its most efficient version at 28 MPG combined (24 city / 34 highway), 24% better than the 2019 large car average of 22.6 MPG, for an estimated $2,950 a year in fuel.

NHTSA has not published a 5-Star overall rating for this model year.

It has 4 recall campaigns on file and owners have filed 17 complaints with NHTSA since 2015, most often about the power train.

What changed for 2019

  • New body dimensions: 2.0 in longer — most likely a redesign or new generation
  • No plug-in hybrid version any more
  • Engine added: 4.2L 8-cyl turbo
  • Best combined MPG up from 25 to 28

Compared with 2018; trim, feature and price changes aren't covered. See the 2018 CT6 →

Dimensions & weight

BodyLengthWidthHeightWheelbaseTrack F / RCurb weightWeight F/R
Luxury AWD 4dr Sedan205.9 in74 in57.9 in122.4 in63.4 / 64.2 in3,986 lb50/50
Platinum AWD 4dr Sedan205.9 in74 in57.9 in122.4 in63.4 / 64.2 in4,217 lb50/50
Premium Luxury AWD 4dr Sedan205.9 in74 in57.9 in122.4 in63.4 / 64.2 in4,129 lb50/50
Sport AWD 4dr Sedan205.9 in74 in57.9 in122.4 in63.4 / 64.2 in4,427 lb50/50

Transport Canada CVS (Open Government Licence – Canada), Canadian-market figures.

Will it fit your garage? Check with your measurements →

Engines, MPG & running costs

VersionEngineTransmissionDriveCity / Hwy / Combvs. classFuel / yrCO₂ g/mi
CT62.0L 4-cyl turboAutomatic (S10)Rear-Wheel Drive24 / 34 / 28+24%$2,950317
CT6 AWD3.6L 6-cylAutomatic (S10)All-Wheel Drive18 / 27 / 21-7%$3,200420
CT6 AWD3.0L 6-cyl turboAutomatic (S10)All-Wheel Drive18 / 26 / 21-7%$3,900429
CT6 AWD4.2L 8-cyl turboAutomatic (S10)All-Wheel Drive14 / 25 / 17-25%$4,850521
6/10EPA fuel economy score (best version)
6/10EPA greenhouse gas score
Spend $2,750Fuel over 5 years vs. average new car
22.6 MPG2019 Large Cars average

EPA estimates; "vs. class" is combined MPG against the 2019 EPA class average. How we calculate this →

Safety ratings & technology

NHTSA has not published 5-Star ratings for the 2019 Cadillac CT6.

Similar 2019 large cars

ModelBest MPG / rangeNHTSA overallRecalls
2019 Cadillac CT6 (this car)28 MPGNot rated4
2019 Lexus LS28 MPGNot rated4
2019 Lincoln Continental21 MPG★★★★★3
2019 Jaguar XJ21 MPGNot rated1
2019 Porsche Panamera23 MPGNot rated2
2019 Lexus ES44 MPGNot rated4
2019 Audi A822 MPGNot rated3

Recalls (4)

Power Train › Automatic Transmission · Mar 6, 2025

NHTSA campaign 25V148000 · 90,081 vehicles

Problem
General Motors LLC (GM) is recalling certain 2019-2020 Cadillac CT6, 2020-2021 CT4, CT5, and 2020-2022 Chevrolet Camaro vehicles equipped with a 10-speed transmission. The transmission may become damaged internally and cause the wheels to lock-up.
Risk
Wheel lock-up while driving increases the risk of a crash.
Fix
Dealers will install transmission control module monitoring software, free of charge. Owner notification letters were mailed April 7, 2025. Owners may contact Cadillac customer service at 1-800-333-4223 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242480630.
Service Brakes · Dec 12, 2019

NHTSA campaign 19V889000 · 463,995 vehicles

Problem
General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 1500, Cadillac CT6, and GMC Sierra 1500 vehicles. Due to an Electronic Brake Control Module (EBCM) software error, the vehicle's Electronic Stability Control (ESC) and Antilock Brake System (ABS) may become disabled. Furthermore, if this specific error occurs, the vehicle's diagnostics will not illuminate the instrument cluster ESC and ABS malfunction warning lights. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 126, "Electronic Stability Control" and 135, "Light Vehicle Brake Systems."
Risk
If the driver operates the vehicle unaware that ESC and ABS are not functioning, there is an increased risk of a crash.
Fix
GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began February 4, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020, Cadillac customer service at 1-800-333-4223, or GMC customer service at 1-888-988-7267. GM's number for this recall is N192268090.
Exterior Lighting › Turn Signal › Switch · Feb 21, 2019

NHTSA campaign 19V117000 · 5 vehicles

Problem
General Motors LLC (GM) is recalling certain 2019 Cadillac CT6 vehicles. Rotation of the steering wheel will not automatically cancel the turn-signals from flashing. As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices and Associated Equipment."
Risk
If the turn-signals do not automatically deactivate, the driver may fail to turn them off manually. An erroneous active turn-signal may mislead pedestrians and other drivers, increasing the risk of a crash.
Fix
GM has notified owners, and dealers will replace the turn-signal switch. The recall began March 11, 2019. Owners may contact Cadillac customer service at 1-800-458-8006. The Cadillac number for this recall is N182207090.
Seat Belts › Rear/Other · Sep 26, 2018

NHTSA campaign 18V673000 · 15,800 vehicles

Problem
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."
Risk
If the child seat is not properly secured in the event of a crash, it can increase the risk of injury.
Fix
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.
Check your VIN for open recalls at NHTSA ↗

Not every 2019 Cadillac CT6 is affected — only a VIN check confirms your car.

Owner-reported problems

17Complaints to NHTSA since 2015
0Involved a crash
0Involved a fire
0Injuries reported
58,000 miTypical mileage at failure
Power Train14
Service Brakes2
Visibility/Wiper1
Electrical System1
Forward Collision Avoidance › Adaptive Cruise Control1
Complaints received per month (last 24 months with reports)
19/10: 119/11: 125/01: 125/03: 125/04: 225/05: 425/06: 325/07: 125/10: 126/07: 126/09: 119/1025/0125/0425/0625/1026/09max 4

Unverified owner reports; best-sellers collect more.

Used 2019 Cadillac CT6 buyer's checklist

  1. Run the VIN at nhtsa.gov/recalls. 4 recalls this year — ask for proof of repairs.
  2. Power Train — 14 owner reports. Test-drive through all gears, including reverse; note slipping, harsh or delayed shifts.
  3. Service Brakes — 2 owner reports. Brake firmly from speed; check for pulling, pulsing pedal or ABS warning light.
  4. Visibility/Wiper — 1 owner reports. Check all exterior lights, wipers and the windshield for cracks.
  5. Mileage to watch. Owners typically reported problems around 58,000 miles; ask what was repaired near that point.
  6. Before you pay: service records, a history report and an independent inspection.

Generated by DecodedCars from NHTSA recalls and owner complaints for the 2019 Cadillac CT6. Not a substitute for a professional inspection.

Other CT6 years

Compare all years →
YearMPG (best)LengthOverallRecallsComplaints
2020 CT621205.9 inNot rated211
2018 CT625203.9 inNot rated212
2017 CT626203.9 inNot rated226
2016 CT625203.9 inNot rated311

Sources: EPA, NHTSA, Transport Canada, Wikimedia Commons. Not affiliated with NHTSA, the EPA or Cadillac. How we calculate this →