Here’s something a lot of new drivers don’t think about: your GPS is just software. It doesn’t know if a sign changed, if a road is closed, or if a traffic officer is standing in the intersection waving you a different direction. It’s making educated guesses based on map data. And when it’s wrong and you follow it anyway, you’re the one holding the wheel.
Traffic law is clear on this. You’re required to follow road signs, signals, and the directions of traffic control officers — not your phone. The California Driver Handbook spells it out directly: if a traffic officer gives you an order, you follow it even if it conflicts with existing signs, signals, or laws. This principle is consistent across states. A GPS app ranks even lower than that. It has zero legal authority over how you drive.
So if your app says turn left and there’s a no-left-turn sign, you don’t turn left. If it routes you into an intersection while the light is red, you stop. If it tells you to make a move that causes a crash — you’re liable. Full stop. “My GPS told me to” is not recognized as a legal defense, and it won’t start now.
This also connects to something the Virginia DMV flags as a major distraction category: adjusting your GPS while driving. The Virginia Driver’s Manual lists messing with your navigation app while moving alongside cell phone use and other serious in-car distractions. If you need to reprogram it, pull over somewhere safe first.
The practical takeaway is simple. Use your GPS — it’s genuinely useful. But treat it like a suggestion from a friend who doesn’t have a driver’s license. They might know a shortcut, but they don’t know the rules of the road, and they’re not the one who gets the ticket or ends up in court. You do.