Q: When I back up, what kind of signal do I have to use? 

Same as when you are going forward! That way, the other road users around you may better understand where you plan to go.

If you are going straight, don’t signal.

If you are backing to the right, signal right.

If you are backing to the left, signal left.

🙂

And a tip from Drive Smart BC “…And make sure that your backup lights work! They signal everyone that you are going to back up.”