Asger Risom
A Chinese automaker has patented a voice-controlled toilet hidden under a car seat, highlighting how far in-car convenience features could evolve—even if the idea never reaches production.
A new patent filing is raising eyebrows in the auto industry, hinting at how far in-car convenience could go.
From karaoke systems to massage seats, carmakers have been adding increasingly unusual features—but this latest idea may be the most unconventional yet.
A surprising concept
Chinese automaker Seres has patented an in-car toilet system that can be controlled by voice command, according to a government database cited by AFP.
The design places the toilet discreetly beneath a vehicle seat, allowing it to be deployed when needed.
Users could activate it either manually by adjusting the seat or by saying a command such as “activate toilet function.”
Built for long journeys
According to the patent filing, the feature is intended for scenarios like long-distance travel, camping, or overnight stays inside the vehicle.
Engineers behind the concept say it aims to meet basic needs without requiring drivers to stop.
The system includes ventilation and an exhaust mechanism designed to direct odors outside the vehicle.
How it works
Waste would be stored in a dedicated tank that requires periodic emptying.
The toilet also features a heating system that evaporates liquid waste and dehydrates solids, helping manage hygiene and storage.
Seres noted in the filing that integrating the unit under a sliding seat helps maximize cabin space.
Part of a broader trend
While toilets are not new in larger vehicles like campers and vans, integrating them into standard passenger cars—especially electric vehicles—marks a new step.
Chinese automakers have been pushing boundaries with features aimed at comfort and entertainment to stand out in an increasingly competitive EV market.
These have included everything from built-in refrigerators to karaoke systems.
Will it hit the road?
For now, the idea remains theoretical.
Seres has not announced any plans to launch a production vehicle with the feature, and it is unclear whether such a design will move beyond the patent stage.
Still, the concept highlights how carmakers are rethinking what a vehicle can offer—especially as cars become more like living spaces than just modes of transport.
Sources: AFP, Digi24
