2019 Cadillac CT6
Trims, performance, features, fuel economy, safety and known problems — with the pros and cons against similar 2019 models.

- 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
| Body | Length | Width | Height | Wheelbase | Track F / R | Curb weight | Weight F/R |
|---|---|---|---|---|---|---|---|
| Luxury AWD 4dr Sedan | 205.9 in | 74 in | 57.9 in | 122.4 in | 63.4 / 64.2 in | 3,986 lb | 50/50 |
| Platinum AWD 4dr Sedan | 205.9 in | 74 in | 57.9 in | 122.4 in | 63.4 / 64.2 in | 4,217 lb | 50/50 |
| Premium Luxury AWD 4dr Sedan | 205.9 in | 74 in | 57.9 in | 122.4 in | 63.4 / 64.2 in | 4,129 lb | 50/50 |
| Sport AWD 4dr Sedan | 205.9 in | 74 in | 57.9 in | 122.4 in | 63.4 / 64.2 in | 4,427 lb | 50/50 |
Transport Canada CVS (Open Government Licence – Canada), Canadian-market figures.
Will it fit your garage? Check with your measurements →Engines, MPG & running costs
| Version | Engine | Transmission | Drive | City / Hwy / Comb | vs. class | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|---|---|
| CT6 | 2.0L 4-cyl turbo | Automatic (S10) | Rear-Wheel Drive | 24 / 34 / 28 | +24% | $2,950 | 317 |
| CT6 AWD | 3.6L 6-cyl | Automatic (S10) | All-Wheel Drive | 18 / 27 / 21 | -7% | $3,200 | 420 |
| CT6 AWD | 3.0L 6-cyl turbo | Automatic (S10) | All-Wheel Drive | 18 / 26 / 21 | -7% | $3,900 | 429 |
| CT6 AWD | 4.2L 8-cyl turbo | Automatic (S10) | All-Wheel Drive | 14 / 25 / 17 | -25% | $4,850 | 521 |
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
| Model | Best MPG / range | NHTSA overall | Recalls |
|---|---|---|---|
| 2019 Cadillac CT6 (this car) | 28 MPG | Not rated | 4 |
| 2019 Lexus LS | 28 MPG | Not rated | 4 |
| 2019 Lincoln Continental | 21 MPG | ★★★★★ | 3 |
| 2019 Jaguar XJ | 21 MPG | Not rated | 1 |
| 2019 Porsche Panamera | 23 MPG | Not rated | 2 |
| 2019 Lexus ES | 44 MPG | Not rated | 4 |
| 2019 Audi A8 | 22 MPG | Not rated | 3 |
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.
Not every 2019 Cadillac CT6 is affected — only a VIN check confirms your car.
Owner-reported problems
Unverified owner reports; best-sellers collect more.
Used 2019 Cadillac CT6 buyer's checklist
- Run the VIN at nhtsa.gov/recalls. 4 recalls this year — ask for proof of repairs.
- Power Train — 14 owner reports. Test-drive through all gears, including reverse; note slipping, harsh or delayed shifts.
- Service Brakes — 2 owner reports. Brake firmly from speed; check for pulling, pulsing pedal or ABS warning light.
- Visibility/Wiper — 1 owner reports. Check all exterior lights, wipers and the windshield for cracks.
- Mileage to watch. Owners typically reported problems around 58,000 miles; ask what was repaired near that point.
- 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 →Sources: EPA, NHTSA, Transport Canada, Wikimedia Commons. Not affiliated with NHTSA, the EPA or Cadillac. How we calculate this →