ABS & Brake light on display

What is your question?

My wife recently advised me the ABS and Brake light have been on her display each time she starts the vehicle and remains on. The P-brake is off, seems to be braking fine, really not sure if ABS is working or not. Brake fluid if fine, brakes are fairly new. I heard it may be either the P-brake release switch, or the ABS brake sensor. Not sure where to begin troubleshooting. any help would be greatly appreciated.