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Used 2020 Cadillac CT6 Consumer Reviews

4.2 out of 5 stars
54 reviews

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We have a limited number of reviews for the 2020 CT6, so we've included reviews for other years of the CT6 since its last redesign.

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Pros
Cons
2 out of 5 stars

OLD GRAY MAYER AINT WHAT SHE USED tO BE

Mr TV, 02/06/2017
2017 Cadillac CT6 Premium Luxury 4dr Sedan AWD (3.6L 6cyl 8A)
19 of 27 people found this review helpful

Ride is awful for a Caddy. Low profile tires is the culprit. hit a curb, no tire scrape just grinding of the very expensive wheel. It happened with my 2013 XTS and the CT6 with same type of low tire will cause the same problem in addition to causing a bumpy ride. The smoooth Caddy ride generated a lofty reputation. It is sad that it is being abandoned due to wrong tire height is being used.

Safety
3 out of 5 stars
Technology
3 out of 5 stars
Performance
2 out of 5 stars
Interior
3 out of 5 stars
Comfort
1 out of 5 stars
Reliability
2 out of 5 stars
Value
2 out of 5 stars
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5 out of 5 stars

Best EVER, The end of an Era...

JB, 07/11/2022
updated 01/16/2025
2018 Cadillac CT6 Premium Luxury 4dr Sedan AWD (3.6L 6cyl 8A)
3 of 3 people found this review helpful

My 2000 Cadillac DHS had 327000 miles so I upgraded and bought this new CT6 premium luxury in 2018 with Super Cruise! Now I travel 200 or more miles at a time in complete comfort without touching the steering wheel. Last Full-Size Sedan they made. Only available NEW in China Now! 30mpg

Safety
5 out of 5 stars
Technology
5 out of 5 stars
Performance
5 out of 5 stars
Interior
5 out of 5 stars
Comfort
5 out of 5 stars
Reliability
5 out of 5 stars
Value
5 out of 5 stars
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5 out of 5 stars

Last chance at a big Cadillac sedan

Chuck W, 01/08/2021
updated 07/19/2024
2018 Cadillac CT6 Luxury 4dr Sedan AWD (3.6L 6cyl 8A)
3 of 3 people found this review helpful

My wife and I have driven Cadillacs since 1987 when we bought a used 1982 El Dorado. We have owned everything including three Sedan DeVilles, a Fleetwood, three Seville SLSs, two DTSs, an Allante, an XTS and now a CT6. We bought the CT6 at the end of 2018 with 3K miles on it. Near-new Cadillacs used to be real bargains price-wise. We have driven the CT6 less than a thousand miles per month. It is an impressive-looking car in its Midnight Sky Metallic paint. It is quiet and comfortable. We don't drive aggressively so the standard 3.6 Liter V6 is okay, but I would prefer to have a V8 in my luxury car. It is much more enjoyable than the 2017 XTS Premium we owned for a year.The V6 has plenty of power but it sounds wimpy compared to the Northstar V8 in our 2010 DTS. The CT6 had zero problems for the first two years and then the transmission problem reared its head. The problem was fixed under warranty. Some irritating things about the CT6 are the too shallow trunk and a poorly placed power window switch. I can't get my rollator walker in without taking the seatback bar off and the power window switch for the driver's side front window is too far forward of where your hand rests. The result is that you mistakenly lower the rear window by mistake. Overall, the CT6 is as good as it gets for a big Cadillac sedan. Subjectively, I would say it is not as quiet or comfortable as the DTS was. Cadillac is chasing another demographic these days. I hope they don't totally forget about mature folks who want a sedan with a smooth, quiet ride and lots of style. 2023 Update. With the exception of the transmission software issue which was fixed under warranty, the CT6 has been trouble free through four and a half years and 55k miles until something broke in the drivers seat. It required replacement of the entire lower seat frame and all the motors it contains because it is serviced as a single unit. Car is driven by my wife who is a small lady. Have never had a driver's seat give out like this. With the dealers $199 an hour labor included, it cost us $1500. It took three weeks to get the part and make the repair, but the dealer provided a courtesy car (2023 XT4) at no cost. Not happy, but glad to have the quiet, comfortable CT6 back. 70,000 mile update: The transmission problem returned with a vengeance. The "fix" was a $700 transmission flush. Keep in mind if you are considering a Cadillac that has the 8-speed transmission that they do not appear to be reliable.

Safety
5 out of 5 stars
Technology
4 out of 5 stars
Performance
5 out of 5 stars
Interior
4 out of 5 stars
Comfort
4 out of 5 stars
Reliability
4 out of 5 stars
Value
4 out of 5 stars
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5 out of 5 stars

Roosevelt Review

Roosevelt 's Review, 04/01/2020
updated 04/01/2021
2017 Cadillac CT6 Luxury 4dr Sedan AWD (3.6L 6cyl 8A)
3 of 3 people found this review helpful

It is not the classic Cadillac. It is very sporty, high tech-which I love, but definitely Cadillac top of the line.

Safety
5 out of 5 stars
Performance
5 out of 5 stars
Interior
5 out of 5 stars
Comfort
5 out of 5 stars
Reliability
5 out of 5 stars
Value
5 out of 5 stars
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3 out of 5 stars

A/C not good

Sandy, 06/03/2020
2017 Cadillac CT6 Premium Luxury 4dr Sedan AWD (3.0L 6cyl Turbo 8A)
3 of 3 people found this review helpful

I like this car a lot, but in Texas the air conditioner just doesn't work. I have had it in the shop four times and they always tell me there's nothing wrong with the air conditioner......and then they say that I need to have the windows ceramic coated. Soooo, if it works correctly why would I need coating? If it sits outside while I am visiting my family, it takes about 30 minutes to cool down, and usually it never cools down enough especially for people in the backseat. I think I will go to Mercedes next as I never had a problem with that brand.

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