I have a 2014 Buick Encore. Last night, the same issue that has happened to me three previous times in the past year happened a fourth time. After I turn the car off, the fan will continue to run after I’ve gotten out of the vehicle. The first time it happened, I must not have noticed it, so it completely drained my battery. I had to have the battery replaced, and a new fan relay switch put in. A couple months later, same exact thing happened again. Again, they replaced the fan relay switch. A couple months later it happened a 3rd time, I went back and lit them up and said they better find the underlying issue that is causing the relay switch to short 3 times. This time, they replaced the entire fuse box, which seemed to fix the problem because it has been a few months with no issues. Well, last night, it happened again. I came home, got out of my car, fan still running. This time, I disconnected the battery cable so it won’t drain my battery.
This has become VERY frustrating. The same issue now four times in the past year. I don’t understand what would cause this to happen.