Model year guide

2019 Cadillac CT6

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2019 Cadillac CT6 is worth — from official NHTSA and EPA data. 13 on record.

2019 Cadillac CT6 — representative photo
Representative photo · via Wikimedia Commons

2019 Cadillac CT6 at a glance

Safety recalls4
Owner complaints17
Combined28 mpg

Included: that car's specs and build sheet, model-year recall campaigns and a fair price.

2019 Cadillac CT6 recalls 4

Power Train:automatic Transmission NHTSA Campaign #25V148000 · manufacturer #N242480630 · 06/03/2025

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.

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 NHTSA Campaign #19V889000 · manufacturer #N192268090 · 12/12/2019

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 malfunc…

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 N192…

Exterior Lighting:turn Signal:switch NHTSA Campaign #19V117000 · manufacturer #N182207090 · 21/02/2019

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."

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 NHTSA Campaign #18V673000 · manufacturer #18315 · 26/09/2018

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 Federa…

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 1-80…

Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.

2019 Cadillac CT6 common problems

The most-reported problem areas across all 17 owner complaints filed with NHTSA — and what to check before you buy.

Power Train
Drive through every gear: watch for slipping, hard or delayed shifts, and shudder. Check for transmission/driveline leaks and noises.
Service Brakes
Brakes should feel firm and quiet — no grinding, pulsing or pulling. Check for an ABS light and uneven pad/rotor wear.
Electrical System
Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.
Forward Collision Avoidance
Have a trusted mechanic inspect this system as part of a pre-purchase inspection.
Visibility/wiper
Have a trusted mechanic inspect this system as part of a pre-purchase inspection.

2019 Cadillac CT6 MPG & running costs

Combined28 mpg
City24 mpg
Highway34 mpg
Est. annual fuel cost$2,950
EPA size classLarge Cars
TransmissionAutomatic (S10)
Forced inductionTurbocharged
Passenger volume110 cu ft
Cargo volume15 cu ft
5-yr fuel cost vs average new car$2,750 more

Source: U.S. EPA / DOE fueleconomy.gov.

Estimated 5-year cost to own

A rough guide to what running a 2019 Cadillac CT6 costs over five years and 75,000 miles.

Fuel (5 yrs)$14,750
Fuel only$14,750
Per mile$0.20

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

Dimensions & weight

Length
205.9 in
Width
74.0 in
Height
57.9 in
Wheelbase
122.4 in
Curb weight
3,986–4,427 lb
Front track
63.4 in
Rear track
64.2 in

Manufacturer-reported figures for the 2019 Cadillac CT6 — ranges cover the 4 body / drivetrain versions on record. Source: Transport Canada vehicle specifications via NHTSA.

Investigations & service bulletins

Manufacturer service bulletins 875

Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 875.

This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.

Bulletin PIT5698F · Sep 2026

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

Bulletin PIP4902W · Sep 2026

PI to help diagnose A/C concern

Bulletin PIT5099J · Jul 2026

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

Bulletin PIT3271Q · Apr 2026

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

Bulletin PIP6104 · Mar 2026

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

Bulletin PIP4902V · Mar 2026

This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss

Bulletin PIT6425D · Mar 2026

This Preliminary information communicates the potential for condensation to freeze up inside the Crankcase Pressure Sensor causing dtc P04FB to set.

Bulletin PIP5841H · Feb 2026

This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's

Bulletin PIT6425C · Jan 2026

This Preliminary information communicates the potential for condensation to freeze up inside the Crankcase Pressure Sensor causing dtc P04FB to set.

Bulletin PIP5841G · Jan 2026

Source: NHTSA Office of Defects Investigation, listed for the CT6 AWD. Model-year data, not specific to one car.

Canadian recalls 2

Transport Canada recall campaigns for the 2019 Cadillac CT6. Relevant if the car was first sold in, or imported from, Canada.

Powertrain

Issue: Over time, the transmission control valve could wear and lose pressure. If this happens, the transmission could shift harshly and could cause the wheels to lock up. Note: This recall only affects vehicles equipped with a 10-speed automatic transmission. Safety Risk: Wheels that lock suddenly could cause a loss of control and increase the risk of a crash. Corrective Actio…

Transport Canada #2025118 · Mar 2025

Brakes

Issue: On certain vehicles, the electronic stability control (ESC) and antilock brake system (ABS) could turn off due to a software error. If this happens, the vehicle's ESC and ABS warning lights would not turn on. Safety Risk: If a driver is not aware that the ESC and ABS systems are not working, there could be an increased risk of a crash. Corrective Actions: General Motors…

Transport Canada #2019630 · Dec 2019

Source: Transport Canada Motor Vehicle Safety Recalls Database.

About the Cadillac CT6

The Cadillac CT6 is a full-size luxury car manufactured by Cadillac starting in 2016 over two generations.

From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.

2019 Cadillac CT6 trims & engines on record

Trims
V-Sport · Sport · Premium Luxury
Engines
3.0L 6-cyl · 4.2L 8-cyl · 3.6L 6-cyl

2019 Cadillac CT6 vehicles on record

Other Cadillac CT6 model years

2019 Cadillac CT6 — frequently asked questions

Does the 2019 Cadillac CT6 have any safety recalls?

NHTSA lists 4 recall campaigns for the 2019 Cadillac CT6. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are done at no charge.

What are the most common problems with the 2019 Cadillac CT6?

Across all 17 owner complaints filed with NHTSA, the most-reported problem areas are power train, service brakes, electrical system.

What gas mileage does the 2019 Cadillac CT6 get?

The 2019 Cadillac CT6 has a U.S. EPA estimate of 28 mpg combined (24 city / 34 highway).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.