Whoever disabled it didn’t do their due diligence, because if the car were to hit someone blind without the pedestrian warning sound they would liable for consequences. They’re required for any hybrid or electric car traveling at low speeds (below 20 mph). To answer your question the previous owner probably just unplugged the speaker so you’d just have to find out where it is on the Avalon and plug the connector back in.
Whoever disabled it didn’t do their due diligence, because if the car were to hit someone blind without the pedestrian warning sound they would liable for consequences. They’re required for any hybrid or electric car traveling at low speeds (below 20 mph). To answer your question the previous owner probably just unplugged the speaker so you’d just have to find out where it is on the Avalon and plug the connector back in.