I have a 2003 Chevy Z71 Silverado, recently replaced pads all the way around. Afterwards, I am having soft pedal in the mornings when I back out/down driveway in the morning. The pedal/stopping power does build up after I pump the brake pedal and stays until the next day!!!!
No brake errors indicated on the DIC.

Air in the lines???

Did you use OEM pads?

No - you think the pads are my problem???????????

Sounds more like air in the lines. Did you bleed them? If so, try bleeding them again.

That is more what I thought - will do and let you know results. Thanks!!!!!