I have a 2019 Silverado new style with 25000 km on it. I was on a 3 hour drive and engine light came on but know affect on performance. I stopped for fuel, truck started up and light still on. The next day I went out to move my truck and light was off but I took it into the dealer to get checked out. It turned out to be the fuel pump module code and they said they are going to replace it.