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48 listings
    • 80,261 miles
    • No accidents, 1 owner, personal use only
    • 18 City / 26 Hwy MPG
    • Marengo Auto Group (40 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Marengo, IL / 40 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/26 Highway)

    Listing Information:

    VIN: 1G6KE5R69HU185719
    Stock: 6933
    Certified Pre-Owned: No
    Listed since: 08-27-2025

    • 88,925 miles
    • No accidents, 2 owners, personal use
    • 18 City / 26 Hwy MPG
    • Crest Cadillac (90 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Brookfield, WI / 90 miles away from Naperville, IL

    2017 Cadillac CT6 3.0L Twin Turbo Luxury 18/26 City/Highway MPG The Crest Cadillac Staff is proud to offer first rate reconditioning on all our used v...

    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/26 Highway)

    Listing Information:

    VIN: 1G6KE5R60HU187164
    Stock: GMF514A
    Certified Pre-Owned: No
    Listed since: 07-02-2025

    • 59,507 miles
    • No accidents, 1 owner, personal use only
    • 18 City / 26 Hwy MPG
    • BMW of Barrington (24 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Barrington, IL / 24 miles away from Naperville, IL

    Red Horizon Tintcoat 2019 Cadillac CT6 3.0L Twin Turbo Platinum Active Rear Steering, Adaptive suspension, Apple CarPlay/Android Auto, Auto High-beam ...

    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/26 Highway)

    Listing Information:

    VIN: 1G6KT5R6XKU143668
    Stock: 158175BA
    Certified Pre-Owned: No
    Listed since: 08-27-2025

    • 76,873 miles
    • No accidents, 2 owners, personal use
    • 18 City / 26 Hwy MPG
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Farmington Hills, MI / 247 miles away from Naperville, IL

    Rare Find,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Cooled Seats,Heated Seats,Heated Steering Wheel,Keyless Start,Lane Keeping Assist,...

    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/26 Highway)

    Listing Information:

    VIN: 1G6KN5R62HU190535
    Stock: HU190535P
    Certified Pre-Owned: No

  • New Listing
    • 121,150 miles
    • 22 City / 30 Hwy MPG
    • Chicago Motor Credit (30 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in South Holland, IL / 30 miles away from Naperville, IL

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    25 Combined MPG (22 City/30 Highway)

    Listing Information:

    VIN: 1G6KA5RX8HU206533
    Stock: 206533
    Certified Pre-Owned: No
    Listed since: 08-21-2025

  • New Listing
    $23,999
    fair price
    $842 above market
    • 98,583 miles
    • No accidents, 2 owners, personal use only
    • 18 City / 27 Hwy MPG
    • I-80 Auto Sales (27 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Hazel Crest, IL / 27 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: 1G6KB5RS5KU142329
    Stock: 142329
    Certified Pre-Owned: No

  • New Listing
    Stock photo**
    • 64,577 miles
    • 1 accident, 1 owner, personal use only
    • 18 City / 26 Hwy MPG
    • Elgin Hyundai (16 mi away)
    • Home delivery*Five Star Dealer
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Bartlett, IL / 16 miles away from Naperville, IL

    Recent Arrival! 2019 Cadillac CT6 4D Sedan 3.0L Twin Turbo SportCARFAX One-Owner. 18/26 City/Highway MPGBUY YOUR NEXT PRE-OWNED VEHICLE WITH CONFIDENC...

    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: 1G6KN5R62KU143531
    Stock: G2314A
    Certified Pre-Owned: No
    Listed since: 09-17-2025

  • New Listing
    Stock photo**
    • 46,249 miles
    • 1 accident, 1 owner, personal use
    • 18 City / 27 Hwy MPG
    • Rizza Buick GMC (21 mi away)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Tinley Park, IL / 21 miles away from Naperville, IL

    Odometer is 31212 miles below market average! 18/27 City/Highway MPGWe price all of our vehicles at or below fair market value making them some of the...

    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: 1G6KD5RS9KU139086
    Stock: 24024T
    Certified Pre-Owned: No
    Listed since: 09-20-2025

  • New Listing
    $29,590
    good price
    $3,629 below market
    • 47,728 miles
    • No accidents, 1 owner, personal use
    • 18 City / 27 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Atlanta, GA / 588 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: 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: 1G6KG5RS7JU152375
    Stock: 2003876776
    Certified Pre-Owned: No
    Listed since: 07-10-2025

  • New Listing
    $9,950
    fair price
    $13 above market
    • 179,914 miles
    • No accidents, 4 owners, personal use
    • 18 City / 27 Hwy MPG
    • Car and Drive Motorsports (24 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Midlothian, IL / 24 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: 1G6KD5RS3JU101416
    Stock: C101416
    Certified Pre-Owned: No
    Listed since: 09-19-2025

  • Stock photo**
    $24,995
    fair price
    $169 below market
    • 93,035 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 18 City / 27 Hwy MPG
    • CarNeeD (29 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Northbrook, IL / 29 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: 1G6KG5RS5JU151984
    Stock: ND2904
    Certified Pre-Owned: No
    Listed since: 09-11-2025

  • $26,990
    fair price
    $803 below market
    • 74,519 miles
    • 1 accident, 2 owners, personal use only
    • 18 City / 27 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Oklahoma City, OK / 667 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: 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: 1G6KG5RS3JU134472
    Stock: 2003915518
    Certified Pre-Owned: No
    Listed since: 07-25-2025

    • 52,138 miles
    • No accidents, 2 owners, personal use
    • 18 City / 26 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Dallas, TX / 780 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: 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/26 Highway)

    Listing Information:

    VIN: 1G6KH5R68JU100611
    Stock: 2003984125
    Certified Pre-Owned: No
    Listed since: 09-02-2025

  • Price Drop
    $35,590
    fair price
    $458 above market
    • 53,286 miles
    • No accidents, 2 owners, personal use
    • 18 City / 26 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Cincinnati, OH / 266 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: 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/26 Highway)

    Listing Information:

    VIN: 1G6KP5R63JU120493
    Stock: 2004047991
    Certified Pre-Owned: No
    Listed since: 09-12-2025

  • New Listing
    $34,590
    fair price
    $556 below market
    • 52,910 miles
    • 2 accidents, 2 owners, corporate fleet vehicle
    • 18 City / 26 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Tampa, FL / 1,008 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:

    21 Combined MPG (18 City/26 Highway)

    Listing Information:

    VIN: 1G6KP5R63JU134748
    Stock: 2003879439
    Certified Pre-Owned: No
    Listed since: 08-18-2025

  • New Listing
    $32,998
    fair price
    $1,015 above market
    • 17,174 miles
    • 18 City / 27 Hwy MPG
    • CarMax (In-stock online)
    • Transfer available from WA to IL*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Spokane Valley, WA / 1,478 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: 1G6KD5RS2JU128154
    Stock: 27862652
    Certified Pre-Owned: No

    • 45,963 miles
    • No accidents, 2 owners, personal use only
    • 18 City / 27 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Phoenix, AZ / 1,420 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: 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: 1G6KD5RS9JU125719
    Stock: 2003810549
    Certified Pre-Owned: No
    Listed since: 07-02-2025

  • New Listing
    • 34,885 miles
    • 2 accidents, 2 owners, personal use
    • 18 City / 27 Hwy MPG
    • Patrick Volvo Cars (18 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Schaumburg, IL / 18 miles away from Naperville, IL

    on this vehicle:DESIRABLE FEATURES: This used 2018 Cadillac CT6 3.6L Luxury features: Android Auto, Apple CarPlay, Navigation, Heated Seats, Bluetooth...

    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: 1G6KD5RS1JU111085
    Stock: P7752A
    Certified Pre-Owned: No
    Listed since: 09-17-2025

  • New Listing
    Stock photo**
    • 47,049 miles
    • 1 accident, 2 owners, personal use
    • 18 City / 27 Hwy MPG
    • Rizza Buick GMC (21 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Tinley Park, IL / 21 miles away from Naperville, IL

    18/27 City/Highway MPGWe price all of our vehicles at or below fair market value making them some of the best values online. Why do we do this? To mak...

    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: 1G6KB5RS6LU105405
    Stock: 11533P
    Certified Pre-Owned: No
    Listed since: 09-20-2025

  • New Listing
    • 49,625 miles
    • No accidents, 1 owner, personal use
    • 18 City / 27 Hwy MPG
    • Motor Werks Cadillac (24 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Barrington, IL / 24 miles away from Naperville, IL

    Elevate your driving experience with this stunning 2019 Cadillac CT6 3.6L Luxury. This exceptional vehicle is the embodiment of luxury, performance, a...

    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: 1G6KB5RS5KU140936
    Stock: CPA6898
    Certified Pre-Owned: No
    Listed since: 09-18-2025

  • New Listing
    • 71,367 miles
    • No accidents, 2 owners, personal use
    • 18 City / 26 Hwy MPG
    • CarMax (In-stock online)
    • Transfer available from FL to IL*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Jacksonville, FL / 874 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: 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/26 Highway)

    Listing Information:

    VIN: 1G6KN5R60KU144015
    Stock: 27567028
    Certified Pre-Owned: No

Showing 22 - 42 out of 48 listings

Consumer Reviews for the Cadillac CT6

Read recent reviews for the Cadillac CT6
Overall Consumer Rating
4.4 out of 5 stars25 Reviews
Write a vehicle reviewSee all 25 reviews
  • 5 star
    (72%)
  • 4 star
    (16%)
  • 3 star
    (4%)
  • 2 star
    (0%)
  • 1 star
    (8%)
1 out of 5 stars

Terrible Service

Robert J. Tarte, 08/29/2018
2016 Cadillac CT6 Premium Luxury 4dr Sedan AWD (3.6L 6cyl 8A)
The electronics are terrible and Cadillac and GM customer service is terrible. My vehicle,e has been at the dealer for 3 weeks. 2 parts have been replaced and the vehicle now cannot be programmed. It took 12 days for a part to be shipped despite my request for overnight shipping. Cadillac told me that they have their processes. GM told me that they have their protocol. Thus, 12 … days to ship a defective part. My dealer told me that they are attempting to get authorization for a new vehicle but GM. wants to send. Yet another part. There is a question whether the part is even available,but GM protocol is the most important thing to GM,not a satisfied customer. After 7 Cadillacs, there will not be a number 8. It is a shame, because the CT 6 is a beautiful car. GM has not changed since the bankruptcy and probably never will. Do not buy a Cadillac.On Sept.4 after 27 days, vehicle finally fixed. Hopefully, GM will offer some compensation for my inconvenience and time spent attempting to resolve the matter.
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Used 2017 Cadillac CT6 in Naperville, IL Values

Estimated values
2017 Cadillac CT6 Luxury 4dr Sedan AWD (3.0L 6cyl Turbo 8A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$18,102$22,406$25,699
Clean$17,443$21,560$24,695
Average$16,345$20,151$23,022
Rough$14,917$18,319$20,848

The average list price of a used 2017 Cadillac CT6 in Naperville, Illinois is $28,324. The average mileage on a used Cadillac CT6 2017 for sale in Naperville, Illinois is 69,320. Based on the average mileage of 69,320 for used 2017 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 2017 in Naperville, Illinois to be $16,345.

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* Delivery of any kind does not apply to Alaska and Hawaii. Contact the dealer for delivery details, restrictions and costs.