A forthcoming update for General Motors Super Cruise will add 70,000 miles of roadway to the semi-autonomous system’s memory.
When the update arrives later this year, Super Cruise will be available to use on more than 200,000 miles of divided highway in the United States and Canada. The system currently has about 130,000 miles worth of road stored in its memory bank.
In addition to the massive mileage expansion, which will nearly double the roadway coverage of Super Cruise, the software update will also include enhancements to the Driver Attention System and other miscellaneous performance improvements.
Unfortunately, this update isn’t a simple over-the-air download for 2018 and 2019 model year Cadillac CT6 owners. To enable the expanded functionality, an unspecified enhancement must be made to the Super Cruise system at Cadillac dealers. It is not clear what this will cost.
“Following the completion of the system enhancement (at dealers), the new, additional map miles will be sent to customer vehicles over the air throughout the summer and fall,” the automaker said in a statement.
2020 model year Cadillac CT6s with Super Cruise will come with the updated system from the factory.
GM says this update also includes changes that will allow it to increase the availability of Super Cruise. The semi-autonomous hands-free system is only available on the CT6 currently, although it will also be offered on the upcoming Cadillac CT5 and CT4 sedans.

Cadillac CT4-V Interior
The automaker claims CT6 customers have already travelled more than 2.5 million miles via Super Cruise.
“We are constantly working to make Super Cruise the most beneficial system for our customers,” said Mario Maiorana, Super Cruise chief engineer. “Expanding our offering of compatible highways will allow people the ease and convenience of traveling hands-free more often.”
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Comments
I can understand GM not wanting to pay AT&T for a gigabyte or two of data being fed over OnStar. I can forgive that Global A may not even have a USB or Ethernet/IP throughput to handle that even if it was.
But why the bleep can’t I plug in a USB stick into the Super Cruise module? I won’t buy a Super Cruise car that requires me to go to the dealer, because that means they won’t add features when appropriate – they’ll add them when it pencils out and they think dealers/drivers will pay.
They don’t have a history of adding features to existing vehicles. My 2018 Bolt has OTA updates, there is a couple features the infotainment system in the 2019 has that would be a welcome upgrade, yet they have stated they won’t be making it available for the older vehicles. Really disappointing when OTA updates was a Marketed feature set.
Anyone living in a major city has seen the autonomous cars on the road where the vehicle is wired with a dozen cameras; but if you’ve seen these vehicles on intersections, you will notice that they have the same intelligence of possibly a 5-year old and uncertain of what to do when there are no streetlights and the vehicle has the right-of-way.. the human driver has to take control of the vehicle. These systems may have memorized the roads; but whether they really understand what to do is still an uncertainty as my most recent experience was just last week when the car froze and require human intervention.
At an intersection, that’s just 1 autonomous car with 30 other conventional cars. Of course it acted like a 5-year old; it was surrounded by non-autonomous cars who’s actions it could not anticipate or coordinate with.
Flip it around with 30 autonomous cars and 1 conventional car, and the autonomous cars would move like clockwork in tandem with one another; coordinating their actions and movement in a manner that no human drivers will ever be able to pull off.
I have a ct6 with supercruise. The system is phenomenal. I drive mostly highway so the car is essentially autonomous for me. Let’s you talk on phone easier, eat, talk to people in car, all better. I actually haven’t had a disengagement yet, but I’m in Boston so maybe it’s just those highwyays around. I assume I’ll get the car updated when I bring it in next for the oil change. I bought this car specifically for this feature.
I have a CT6 with Super Cruise. I love the car, however, I assume that I will have an argument with Cadillac if they are going to charge for the update, after all, I’ve only had the car for less than six months.
I Drive a 2018 CT6 with Super Cruise I purchased 12-6-18, I LOVE Super Cruise feature. Took it to dealership yesterday for Super Cruise update, additional miles, features. ehancements etc. All at No charge.
Love my CT6 with Supercruise. I was driving a final series Bentley Arnage and was waiting for Bentley to offer more safety features. I happened across the Supercruise system and bought the car sight unseen. It is quite amazing and worth the “downgrade” from the Bentley. Plus nobody stares at you constantly. Anyway I just discovered new roads in my area that are mapped. And they are divided highway but not limited access. They had cross roads and it disengages with notification before stoplights. And for those that are not Supercruise owners and say things like your going to wait til it’s basically perfect, then your loss. This has more safety built in than Tesla and others. Why beva hater of such an amazing system.
I took my CT6 into the dealership for the update. Afterwards at some point it received over the air updates and I am now accessing previously unavailable roads with “Super Cruise”)
I bought the vehicle in Dec, 2018 and so far everything works flawlessly. Love it!