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  • New Listing
    • 55,550 miles
    • 18 City / 26 Hwy MPG
    • CarMax (In-stock online)
    • Transfer available from CA to IL*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Buena Park, CA / 1,705 miles away from Naperville, IL

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    21 Combined MPG (18 City/26 Highway)

    Listing Information:

    VIN: 1G6KT5R67KU132806
    Stock: 27615012
    Certified Pre-Owned: No

    • 38,980 miles
    • 3 accidents, 1 owner, personal use
    • 18 City / 26 Hwy MPG
    • Sheffield Motors (61 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Kenosha, WI / 61 miles away from Naperville, IL

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/26 Highway)

    Listing Information:

    VIN: 1G6KN5R6XKU132146
    Stock: 132146
    Certified Pre-Owned: No
    Listed since: 05-11-2025

  • Price Drop
    $34,988
    great price
    $4,375 below market
    • 73,384 miles
    • 1 accident, 3 owners, personal use
    • 18 City / 27 Hwy MPG
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in New Port Richey, FL / 980 miles away from Naperville, IL

    High Demand,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Brake Assist,Chrome Wheels,Entertainment System,Heated Seats,Heated Steering Whe...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KE5RS1LU106078
    Stock: LU106078P
    Certified Pre-Owned: No

  • $29,997
    great price
    $3,545 below market
    • 46,747 miles
    • 1 accident, 3 owners, personal use only
    • 18 City / 27 Hwy MPG
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Wesley Chapel, FL / 985 miles away from Naperville, IL

    High Demand,Rare Find,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Heated Seats,Keyless Start,Lane Keeping Assist,Leather Seats,Navigatio...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KB5RS9LU101414
    Stock: C101414A
    Certified Pre-Owned: No

  • New Listing
    $37,435
    fair price
    $1,065 above market
    • 62,287 miles
    • No accidents, 1 owner, personal use
    • 18 City / 27 Hwy MPG
    • Driscoll Cadillac (63 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Pontiac, IL / 63 miles away from Naperville, IL

    2020 Cadillac CT6 3.6L Premium Luxury Recent Arrival. 18/27 City/Highway MPG Bluetooth, Backup Camera, Navigation System, Sunroof/Moonroof, Leather Se...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KE5RS7LU100043
    Stock: 3934
    Certified Pre-Owned: No
    Listed since: 02-14-2025

    • 56,432 miles
    • No accidents, 3 owners, corporate fleet vehicle
    • 18 City / 27 Hwy MPG
    • Cadillac of Naperville (5 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Naperville, IL / 5 miles away from Naperville, IL

    * 2020 CADILLAC CT6 PREMIUM LUXURY* CARFAX CERTIFIED* LONG SERVICE HISTORY AT OUR DEALERSHIP* FINEST EXAMPLE ANYWHERE- MUST SEE IN PERSON* FLAWLESS SE...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KE5RS0LU101423
    Stock: M7709
    Certified Pre-Owned: No
    Listed since: 04-02-2025

    • 53,342 miles
    • No accidents, 1 owner, personal use only
    • 18 City / 27 Hwy MPG
    • Gulliver USA (28 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Arlington Heights, IL / 28 miles away from Naperville, IL

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KB5RSXLU106248
    Stock: 250645
    Certified Pre-Owned: No
    Listed since: 05-25-2025

  • New Listing
    • 38,978 miles
    • No accidents, 1 owner, personal use
    • 18 City / 27 Hwy MPG
    • Genesis of Merrillville (47 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Merrillville, IN / 47 miles away from Naperville, IL

    **Please contact us directly to schedule an appointment for viewing vehicles in-person. This is to ensure the vehicle is on-site & available for you u...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KE5RS1LU100250
    Stock: G15867A
    Certified Pre-Owned: No
    Listed since: 06-21-2025

Showing 43 - 50 out of 50 listings

Consumer Reviews for the Cadillac CT6

Read recent reviews for the Cadillac CT6
Overall Consumer Rating
3.8 out of 5 stars32 Reviews
Write a vehicle reviewSee all 32 reviews
  • 5 star
    (41%)
  • 4 star
    (22%)
  • 3 star
    (16%)
  • 2 star
    (19%)
  • 1 star
    (3%)
3 out of 5 stars

Fighting with GM is not easy

m300michael, 11/14/2017
2017 Cadillac CT6 Premium Luxury 4dr Sedan AWD (3.0L 6cyl Turbo 8A)
I am having issue that involves the transmission on this vehicle. On occasion the transmission shifts/lurches so hard that it feels like the vehicle was struck from the rear. I did take the vehicle in for service and dealership stated that they upgraded the computer and the problem should not re-occur. Wrong! The same issue has occurred several more times and one time my grandkids … were in the vehicle and it actually scared them when the vehicle lurched. Reading other reviews involving the Cadillac CT6 shows that I am not alone with this issue. I know that there is no perfect vehicle available on this planet but, what I fear is that the lurching may occur and cause an accident or transmission will not last long and will need to be replaced (hopefully, while under warranty). This transmission issue is still an issue, as I have taken the vehicle back to the dealership and the dealership cannot "duplicate" the hard shift. Interesting fact is that every single person that has been in my vehicle has felt this problem and I have had it occur before and after taking the vehicle for service. No more review necessary. GM repurchased this vehicle as of 11/15/2018 due to the issue with the transmission and their inability to either replace or repair it.
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Used 2019 Cadillac CT6 in Naperville, IL Values

Estimated values
2019 Cadillac CT6 Platinum 4dr Sedan AWD (3.0L 6cyl Turbo 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$35,303$36,901$38,340
Clean$34,282$35,793$37,146
Average$32,582$33,947$35,157
Rough$30,371$31,547$32,571

The average list price of a used 2019 Cadillac CT6 in Naperville, Illinois is $36,594. The average mileage on a used Cadillac CT6 2019 for sale in Naperville, Illinois is 53,213. Based on the average mileage of 53,213 for used 2019 Cadillac CT6 for sale in Naperville, IL and using an average vehicle condition rating, which means the vehicle may have a few mechanical and/or cosmetic problems and may require a considerable amount of reconditioning, we appraise the average trade-in value of a used Cadillac CT6 2019 in Naperville, Illinois to be $32,582.

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