Home ยป Cadillac CT6 Won’t Be Eligible For Full Super Cruise Update

Cadillac CT6 Won’t Be Eligible For Full Super Cruise Update

Cadillac CT6 Won’t Be Eligible For Full Super Cruise Update

Cadillac recently announced that it is expanding the amount of roads compatible with its Super Cruise advanced hands-free driver assistant, which will soon cover over 400,000 miles of North American roads. While the Cadillac Escalade will receive the full scope of the massive update, the Cadillac CT6 will only receive a fraction of it.

As part of Cadillac parent company’s, General Motors, plans to increase the amount of roads compatible with Super Cruise, the Cadillac CT6 will receive an upgrade that will only add 20,000 miles of eligible highways. That’s because the luxury sedan does not have the software necessary to accept the full upgrade, as it wasn’t built on the Global B electrical vehicle architecture, and its current platform is unable to support the full, 400,000 mile Super Cruise expansion. The Cadillac XT6 is also faced with a similar issue, as it will also receive a much smaller Super Cruise expansion due to its outdated electrical architecture. 

As a reminder, Super Cruise (production code UKL) allows drivers of an equipped vehicle to take their hands off the steering wheel and feet off the pedals on compatible roads.

The 2020 model year was the last for the Cadillac CT6 sedan in North America before it was discontinued. For its final model year, the CT6 was available with one of two engines. The first was the naturally aspirated 3.6L V6 engine (production code LGX), rated at 335 horsepower and 284 pound-feet of torque. The second was twin-turbocharged 4.2L V8 engine (production code LTA) gasoline engine. Otherwise known as the Blackwing engine, the LTA produced 550 horsepower and 640 pound-feet of torque, while a detuned version of the LTA offered in the CT6 Platinum made 500 horsepower and 574 pound-feet of torque.

Under the skin, the Cadillac CT6 rode on the Omega platform. Production for the North American markets took place at the GM Detroit-Hamtramck plant, now known as GM Factory Zero.

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Written by
Alexandra is a Colorado-based journalist with a passion for all things involving horsepower, be it automotive or equestrian.


  1. I just paid for the Super Cruise subscription on my 2017 and 2020 CT6’s. Thus really is a fault on GM’s part. Being in IT and a software developer and supporter for over 40 years, I am sure there is a way to update the current software. GM just doesn’t want to spend any development money in the US. It all goes to China…let’s see how that goes when China blows up in their face and takes over everything.

  2. I have a 2020 CT6 Platinum with Blackwing engine and Super Cruise. Very disappointed I can’t get updated Super Cruise with Lane Change function and extra miles. When I bought the CT6 I was told additional miles would be added, the dealer neglected to add “but not for your car!”

  3. The biggest problem GM has is letting that half wit Barra run that co. Maybe she should go back to HR where she had been previously

  4. I couldn’t agree with you more on this topic. Just another way GM/Cadillac continues to not support it’s vehicle development. GM/Cadillac develops amazing technology, like Super Cruise, the Omega chassis, and the Blackwing engine, then either drops them, or no longer improves the technology.

    Why should anyone have have faith in Cadillac or want to buy their product. The Celestiq will be gone in a few years, if it lasts that long. The CT4, and CT5 will not be replaced. In 10 years all Cadillac will have is a few electric SUV’s and that’s it. Have you seen any long range plan for a future Cadillac line-up of vehicles.

    When I renewed my Super Cruise on my two CT6 (2018,2020)vehicles it was $250.00 for each vehicle, on top of $350.00 each for OnStar.

    Cadillac/GM will continue to not support these vehicles. The CT6 is the best all original Cadillac in over 50 years and they dropped it after 5 years and all they have is this horrible line-up of nothing really CADILLAC….

    It is sad when dealers lose faith in the product that they built on. My Cadillac dealer started in 1947 with a Cadillac franchise, today they have 10 others, Lexus is their “bread and butter” and Cadillac at the bottom below Volvo, Volkswagen, even Ford, and Chevy……So sad!

  5. This is why I am keeping my old 2008 DTS Performance, and not upgrading to a newer Cadillac. I also drive a 1977 Cadillac Eldorado, and I really don’t like the direction Cadillac has been going. If I want a truck I’ll buy a GMC, otherwise Cadillac is not making any new vehicle that I would actually want. I Guess I’m from the old school, when Cadillacs were big luxury cars.


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