Re: Adaptive Cruise Control Disengaging
I am having the same issue in my 2018 Premier with 26,000 miles. I purchased the car almost 2 months ago and after about a week the cruise would intermittently not work. Sometimes it would say "Adaptive Cruise Control Unavailable" and other times it would work for about 3 seconds then say "Adaptive Cruise Disengaging". Sometimes you could wait a minute and turn it back on. Other times it wouldn't work the rest of the trip. I feel it is not weather related, as the cruise has worked on rainy clouded crappy days, but hasn't worked on clear days when the car is clean. Car is kept in the garage and weather has not been over 80 degrees, so I know it is not any sensor getting too hot.
I can't seem to find any similarities to why this is re-occurring... it is totally random. One day it works, next day it doesn't. Originally I took the car in to have them look at it but the dealer could not repeat the issue and the cruise worked every time they tried it. However, last week the cruise did not work for a couple days so I took it in and now they are working on it. Now they have had it for 4 business days and still cannot figure it out. The last I spoke with them they said there may be some kind of low voltage issue. They thought they found a ground wire that was loose so they tightened that up, but the cruise still did not work when they test drove it.
I would concur with the comment above and saying it seems like nobody has a clue as to why this is occurring. It seems like my dealer and GM are lost.
So at the moment I'm still waiting to hear back from the dealer and driving a loaner Chevy Trax. Can't wait to get the Malibu back. This is frustrating to say the least!
Edit: I forgot to mention they have already replaced the long range sensor and some kind of cruise control module. Both did not fix the issue.