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32 listings
  • New Listing
    Stock photo**
    • 36,333 miles
    • No accidents, 2 owners, personal use
    • 6cyl automatic
    • Napleton Chevrolet St. Charles (12 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Saint Charles, IL / 12 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: 1G6KB5RS8LU111271
    Stock: P619
    Certified Pre-Owned: No
    Listed since: 05-06-2025

    • 75,011 miles
    • Frame damage reported, 2 owners, corporate fleet vehicle
    • 6cyl automatic
    • Driven Auto of Waukegan (42 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Waukegan, IL / 42 miles away from Naperville, IL

    Vehicle Overview Contact Sales Team at 8**-6**-8*** or i***@d*.net for more information. LOADED WITH VALUE! Comes equipped with: Cadillac Cue Info...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Issue reported

    Salvage Vehicle: No

    Frame Damage: Yes

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    22 Combined MPG (18 City/27 Highway)

    Listing Information:

    VIN: 1G6KD5RS9GU165971
    Stock: 7964
    Certified Pre-Owned: No
    Listed since: 02-14-2025

  • Price Drop
    • 25,546 miles
    • 1 accident, 2 owners, personal use
    • 6cyl automatic
    • CarMax (In-stock online)
    • Transfer available from FL to IL*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Ocola, FL / 935 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

    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: 1G6KB5RS8JU125698
    Stock: 26933159
    Certified Pre-Owned: No

  • New Listing
    • 23,582 miles
    • 6cyl automatic
    • CarMax (In-stock online)
    • Transfer available from MO to IL*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Saint Peters, MO / 244 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/27 Highway)

    Listing Information:

    VIN: 1G6KD5RS2JU152535
    Stock: 26895493
    Certified Pre-Owned: No

  • New Listing
    • 62,633 miles
    • 1 accident, 3 owners, corporate fleet vehicle
    • 4cyl automatic
    • Carvana (In-stock online)
    • Home delivery*
    • Bluetooth
    • Navigation
    • Leather Seats
    • Upgraded Headlights
    • Blind Spot Monitorin...
    Close

    Located in San Antonio, TX / 1,031 miles away from Naperville, IL

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    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:

    25 Combined MPG (22 City/31 Highway)

    Listing Information:

    VIN: 1G6KC5RX9GU153141
    Stock: 2003532378
    Certified Pre-Owned: No
    Listed since: 02-28-2025

  • Stock photo**
    $34,987
    fair price
    $1,884 below market
    • 20,171 miles
    • No accidents, 1 owner, rental vehicle
    • 6cyl automatic
    • Premiere Motorsports (14 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Plainfield, IL / 14 miles away from Naperville, IL

    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: 1G6KB5RS7KU130103
    Stock: KB5509B
    Certified Pre-Owned: No
    Listed since: 04-23-2025

  • $30,997
    great price
    $3,484 below market
    • 46,747 miles
    • 1 accident, 3 owners, personal use only
    • 6cyl automatic
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Wesley Chapel, FL / 989 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

  • Price Drop
    $39,990
    fair price
    $253 below market
    • 56,428 miles
    • No accidents, 3 owners, corporate fleet vehicle
    • 6cyl automatic
    • Cadillac of Naperville (2 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Naperville, IL / 2 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

  • $34,995
    good price
    $2,289 below market
    • 26,742 miles
    • 1 accident, 1 owner, personal use only
    • 6cyl automatic
    • Bentley Northbrook (31 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Northbrook, IL / 31 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/27 Highway)

    Listing Information:

    VIN: 1G6KB5RS3LU104566
    Stock: P13066
    Certified Pre-Owned: No
    Listed since: 04-26-2025

    • 66,695 miles
    • No accidents, 1 owner, personal use
    • 6cyl automatic
    • Cadillac of Naperville (2 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Naperville, IL / 2 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: 1G6KB5RS7LU100262
    Stock: M7692
    Certified Pre-Owned: No
    Listed since: 03-18-2025

    • 69,415 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 6cyl automatic
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Fort Worth, TX / 807 miles away from Naperville, IL

    CarFax No Accidents Reported,High Demand,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Brake Assist,Entertainment System,Heated Seats,Heat...

    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: 1G6KE5RS6LU100888
    Stock: 10503P
    Certified Pre-Owned: No

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Showing 22 - 32 out of 32 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 2020 Cadillac CT6 in Naperville, IL Values

Estimated values
2020 Cadillac CT6 Luxury 4dr Sedan AWD (3.6L 6cyl 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$30,096$33,832$37,456
Clean$29,342$32,938$36,414
Average$28,086$31,448$34,678
Rough$26,453$29,510$32,422

The average list price of a used 2020 Cadillac CT6 in Naperville, Illinois is $32,436. The average mileage on a used Cadillac CT6 2020 for sale in Naperville, Illinois is 46,300. Based on the average mileage of 46,300 for used 2020 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 2020 in Naperville, Illinois to be $28,086.

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