I have an 04 Silverado Z-71. I decided to replace the brake pads and after replacing them the rear brakes were locked up. I didn’t realize they were locked at first so I drove it for several miles until I finally realized something wasn’t right. I saw many people had posted that this issue happened a lot and you might as well replace the rear calipers, which I did. After bleeding the brakes, now the parking brake light stays on in the dash and it is also saying service brake system. The brakes seem to be working fine but I don’t know why the lights are on. I am wondering if it has something to do with me driving it for a little while with the rear calipers now releasing. I checked the codes but nothing is showing up. Any ideas??

I topped the fluid off before I bled the brakes and after. I will check the parking brake but it was never engaged during this whole process. I will try bleeding them again, maybe that will help, thanks