AVAS

abbreviationStandard termAutomotive

The acoustic vehicle alerting system emits artificial noise to warn pedestrians of quiet electric cars.

AVAS is a safety mandate for electric and hybrid vehicles traveling at low speeds. Because electric motors produce almost no mechanical noise, exterior waterproof speakers broadcast a continuous synthetic hum or frequency-shifting tone. This alerts visually impaired pedestrians and cyclists to the vehicle's approach before tire and wind noise become prominent at higher speeds.

Heard on the job

The customer hit a massive puddle and shorted out the front AVAS speaker, so the car is completely silent in parking lots now.

Also heard as

  • acoustic vehicle alerting system
  • pedestrian warning system