The Accoustic Vehicle Warning System by Forvia. Compact sound module for safer EV interiors

Accoustic Vehicle Warning System by Forvia is tucked behind the front grille, but you really notice it when an otherwise silent electric SUV glides past a crosswalk and emits a clear synthetic hum instead of rolling in total silence. The small module looks like a rugged speaker, yet product manager Marie Dubois describes it as an "acoustic safety layer" for EV interiors and exteriors.

Compact module for EV safety

Faurecia, now part of Forvia, developed the Accoustic Vehicle Warning System (AVAS) to help carmakers comply with regulations that require electric vehicles to emit a warning sound at low speeds so pedestrians can hear them approaching. The company positions the module as a compact, automotive-grade audio unit that can be integrated behind bumpers or grilles while connecting to the vehicle’s interior electronics.

The sound generator supports customizable acoustic signatures, meaning each car brand can tune the artificial engine noise to match its design language without being overly intrusive. Engineers adjust frequency ranges and volume levels so the tone cuts through city background noise but does not dominate the cabin at moderate speeds.

How the warning sound is tuned

On Forvia’s technical material, the AVAS unit is described as a robust loudspeaker system with dedicated electronics tailored for electric and hybrid vehicles. It generates a synthetic sound at speeds typically below 20 to 30 km/h, the range in which tire and wind noise are still low and pedestrians rely mainly on acoustic cues. Calibration teams record audio samples in real traffic, then refine the tone so it is audible through the interior insulation and exterior ambient sound without becoming shrill.

Chief technology officer Christophe Aufrère has repeatedly emphasized that Forvia’s smart cockpit strategy includes audio and acoustic technologies alongside displays and interior lighting. In this context, AVAS acts as a bridge between exterior safety requirements and interior electronics, using existing control units and wiring harnesses. Carmakers can integrate the module as part of a broader sound design, from subtle startup tones to brand-specific driving soundscapes.

Regulatory backdrop and market demand

Regulations in the European Union and other major markets make acoustic warning systems mandatory for new electric cars, which has created steady demand for modules like Forvia’s. Guidelines often specify minimum sound levels and frequency bands, forcing suppliers to design systems that are not only pleasant but also measurable during type approval tests. As more cities restrict combustion engines, the number of quiet EVs on the road rises, increasing the practical importance of AVAS hardware.

Forvia’s automotive-grade casing and mounting options allow the module to be placed near vulnerable road users’ typical hearing zones, for example close to the front bumper at pedestrian height. That physical placement, combined with tuned frequency content, helps ensure that a child stepping off a curb hears the vehicle earlier than they might with just rolling tire noise. The company also notes that the unit can be upgraded as software evolves, supporting new sound signatures through updates.

Where AVAS sits in Forvia’s portfolio

The Accoustic Vehicle Warning System is part of Forvia’s broader electronics and cockpit portfolio, which includes audio systems, connectivity modules and interior lighting. While not as prominent as full infotainment displays, the AVAS module contributes to the supplier’s positioning as a complete interior and safety solution partner for OEMs. In its presentations, Forvia outlines a strategy linking safety, comfort and style, and AVAS falls squarely into the safety branch.

Because the module is designed for integration with existing car audio and control units, it helps carmakers contain engineering complexity when adding regulatory-compliant warning sounds. Suppliers such as Forvia typically deliver these components in combination with dashboards and other interior parts, letting OEMs source more of the sound and trim package from a single partner. For investors watching Forvia stock on Euronext Paris, products like AVAS represent recurring content on future EV platforms.