One zone fills the screen at a time. Read it, pocket the phone, do the check with both hands, then tap All good here to move on. If something is wrong, tap that item instead and add a severity, a note and a photo.

Everything stays on this phone. Nothing is uploaded. Tip: use your browser's Add to Home Screen so it opens like an app and works with no signal.

Pre-trip inspection resources covers the full walkaround, and air brake test steps covers all nine in-cab checks with the psi numbers.