General Motors is rolling out a massive new software enhancement for its semi-autonomous Super Cruise driver assist system.
The enhancement was outlined this month via Service Update N232427510 and covers all Super Cruise-enabled vehicles produced between the 2018 and 2024 model years, including all four of GM’s U.S. brands.
For those readers who may be unfamiliar, the GM Super Cruise system allows drivers to remove their hands from the steering wheel while traveling on compatible highways, relying on LiDAR and real-time GPS to autonomously steer, accelerate, and brake. Drivers are monitored to ensure that they can retake the wheel, if needed.
The system originally launched with the 2018 Cadillac CT6, and can now be found across a vast swath of GM nameplates. This latest update applies to a broad list of GM vehicles across the Buick, Cadillac, Chevrolet, and GMC brands, including (relevant model years listed in parentheses):
Buick
- Envision (2024)
Cadillac
- CT4 (2021–2024)
- CT5 (2021–2024)
- CT6 (2018–2020)
- Escalade (2021–2024)
- Escalade ESV (2021–2024)
- Lyriq (2023–2024)
- XT6 (2022–2024)
Chevrolet
- Blazer EV (2022–2024)
- Bolt EUV (2022–2023)
- Equinox EV (2024)
- Silverado EV (2024)
- Silverado 1500 (2022–2024)
- Suburban (2023–2024)
- Tahoe (2023–2024)
- Traverse (2024)
GMC
- Acadia (2024)
- Hummer EV Pickup (2022–2024)
- Hummer EV SUV (2024)
- Sierra 1500 (2022–2024)
- Yukon (2023–2024)
- Yukon XL (2023–2024)
Updates can be installed either wirelessly over-the-air (OTA) or through dealer programming using GM’s Service Programming System (SPS). Affected components include the Engine Control Module (ECM), and either the Drive Motor Control Module or Hybrid Powertrain Control Module (HPCM2, specific to Bolt EUV). No physical parts are required for the install. Install times range between 0.2 to 0.4 hours, depending on module and procedure in question. Customers with eligible Super Cruise-enabled vehicles are encouraged to check with their local dealer to ensure that their Super Cruise system is updated with the latest improvements.
Notably, GM has may expand Super Cruise coverage to cover upwards of 1.2 million miles of North American roads by the end of the year. That said, the recent service bulletin doesn’t specify whether or not the related enhancements expand Super Cruise’s road coverage.
Comments
I wish GMAuthority would document the differences in road coverage for the various versions of supercruise.
it’s quite funny that the 2024 Envision made the list here. in the notice sent to dealers, it included a VIN list that had 24 Envisions on it. As we all know they ended up cancelling super cruise for 2024 Envision before SORP. But since there are real VIN’s it proposes the question… are there actually 2024 Envisions on the road right now, or within GM HQ that have Super Cruise?
They have a list a mile long of infotainment system failures in current models and they fix this FIRST? Brain transplants needed, stat!
Right, because they only have one developer working on everything /s
No updates available for the C8…………Grrrrrrr
I’ve said it before. How could ANYONE ever want a car that drives itself. I find the whole concept absolutely ridiculous. What possible need did this fulfill. Vehicle manufacturers NEED to fulfill the actual needs of drivers. Safe, reliable, durable, well styled and void of all gadgets/distractions. Oh, and most important, more affordable.
I love mine, but I drive 40k a year, so its a relief to take your hands off the wheel for a min
I understand your frustration, however please understand that in this specific case, you are in the minority. Many customers/consumers are looking for vehicles that do things for them, and provide the latest and greatest tech, both in safety and features.
Skepticism about self-driving tech is understandable—cruise control faced similar doubts when it debuted. Drivers back then managed speed manually and saw no need for automation. Yet, cruise control proved transformative, easing fatigue, boosting fuel efficiency, and stabilizing speeds—benefits now widely appreciated.
GM’s SuperCruise advances this idea, delivering hands-free driving on compatible highways while prioritizing safety and reliability. Using high-precision cameras, radar, and GPS, it manages steering, acceleration, and braking, reducing stress and distractions on long drives. SuperCruise reacts to hazards faster than a human, enhancing safety without replacing the driver. It’s like cruise control for a new era, elevating the driving experience.
Integrated into stylish, durable GM vehicles like Cadillac and Chevy, SuperCruise balances cutting-edge tech with affordability and practicality. Just as drivers didn’t foresee needing cruise control, SuperCruise’s benefits—smoother, safer, more effortless drives—become clear once experienced.
Think of SuperCruise as autopilot for your road trip, simplifying long hauls while keeping you in control. My experience with advanced driver-assistance systems (SuperCruise, Tesla FSD, Rivian Driver+) confirms their value: unmatched comfort, safety, and efficiency. Driving without them now feels outdated, and I wouldn’t consider a vehicle without such tech.
Does anyone have any details on what exactly is ‘enhanced’?
P.S. Here is the service update https://static.nhtsa.gov/odi/tsbs/2025/MC-11017332-0001.pdf
buick envision never had super cruise
Jeremy. Great explanation. Thanx. My fear is how folks will “use” that tech. As perfect as it “seems” to be there will always be situations that will arise and folks will, most definitely, be too busy on their cell phone or their laptop to help overcome the situation which will inevitably cause bad things to happen. Even one death is too many. I’m not, yet, sure it fulfils a need. NOBODY needs to pay attention to anything other than their own safety, and of others, while driving. Every sensor WILL inevitably fail.
Those things you mention, being on the cell phone or a laptop are just not possible with Supercruise. It has a camera that monitors the operator for these types of distractions or for looking down or away from the road for too long and disengages the system when the driver is inattentive. Actually, I find the onboard nanny to be a little bit over zealous in this regard. If I scratch my nose too long it will put me in the penalty box as it thinks I’m talking on an “invisible” Cell phone.
Disengaging the system while the driver is distracted. Mmmmm! Hope the system sounds a 100 Db warning shot to “wake up” the driver. Sounds (Ha Ha) like it’s a little better designed than I expected, BUT, If you’re not supposed to be doing anything else, why don’t you just drive the car yourself ????? Again. What NEED does it actually fulfill?