I've experienced the same issue maybe a dozen or so times since buying my 2022 3LT in May. There's another thread on the issue here - 2020 Chevy Blazer RS Camera not working | 2019 Chevy Blazer Forum. I'm a bit surprised there aren't more people reporting this issue. But, then again, people who join forums like this usually make up a very small percentage of people who own that particular vehicle. I haven't scheduled a visit to the dealership yet because it happens so infrequently, but I definitely need to take it in.