What should you use to signal a lane change while driving a commercial vehicle?

Using turn signals to signal a lane change while driving a commercial vehicle is essential for safe operation on the road. Turn signals are specifically designed to indicate your intention to other drivers, allowing them to anticipate your actions. This is especially important for larger vehicles, like those covered under CDL Class A, which have larger blind spots and take longer to maneuver.

When you activate your turn signal before a lane change, it communicates your intent to other road users, promoting a safer driving environment. Failure to use turn signals can lead to confusion among drivers around you, increasing the risk of collisions. Thus, it's crucial to always signal your intentions to enhance safety for yourself and others on the road.

Other signals, such as brake lights, indicate that a driver is slowing down or stopping, while hazard lights warn of an emergency situation or a temporary hazard. The horn is typically used to alert other drivers to danger but is not an appropriate method for indicating lane changes. By using turn signals, you ensure clarity in your maneuvers while driving a commercial vehicle.