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47 listings
  • 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
    $3,408 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

  • Selling or trading in?

    Know what your car is worth while you shop for your next vehicle.

    See my car’s value
    • 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

  • 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 - 47 out of 47 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 2020 Cadillac CT6 in Naperville, IL Values

Estimated values
2020 Cadillac CT6 Premium Luxury 4dr Sedan AWD (3.6L 6cyl 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$34,981$36,366$37,714
Clean$34,105$35,405$36,665
Average$32,644$33,803$34,917
Rough$30,746$31,721$32,645

The average list price of a used 2020 Cadillac CT6 in Naperville, Illinois is $36,042. The average mileage on a used Cadillac CT6 2020 for sale in Naperville, Illinois is 55,566. Based on the average mileage of 55,566 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 $32,644.

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