Your car's warning light, explained before the tow truck
PITCHED AT THE SAN FRANCISCO NIGHT ON 4 NOVEMBER 2026
Most drivers have no engineering sense of the car they rely on, so when a light comes on the choice is a mechanic they must trust blindly or a friend who happens to know cars. Raste reads the operating data a modern vehicle already produces on every drive, looks for early signs of trouble, and gives a plain-language next step, so a small problem is fixed before it becomes a breakdown.
A warning light leaves a driver with three questions, what is wrong, how urgent is it and what should I do, and no good way to answer any of them. So problems are found late, when the engine has lost power or the car is already on the shoulder, and a repair that would have been modest if caught early becomes a rebuild. The car knew earlier: a modern vehicle's control units produce a stream of health data on every drive that almost nobody reads.
Raste reads it. The app monitors the vehicle's operating data, interprets the changes that signal a developing fault and translates them into clear next steps, with an overall status, a vehicle health view, driving behaviour and an assistant to ask what a new sound or smell might mean. The beachhead is used cars and the people who drive them, with fleets and vehicle manufacturers as the licensing path. Co-founded by Ashish Ranjan, whose engineering career ran from nuclear reactors at India's Department of Atomic Energy and rockets at ISRO to cars at Lucid, and Komal Taya.
These founders pitched at the same startup events. The room is usually the reason people find each other.