A vehicle that fails to make sufficient sound may result in pedestrians being unaware of an approaching vehicle, increasing the risk of injury.

The pedestrian alert sound system may not produce a sufficient change in volume between the vehicle being stopped and moving at low speeds. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 141, "Minimum Sound Requirements for Hybrid and Electric Vehicles."

What to do: Book it in at your next service. There is no deadline and no charge.