'Software bug' that triggered F1's Malaysia chaos explained

Key Points:

• A software bug in the energy management system caused multiple Formula 1 cars to stall during the formation laps at the Bahrain Grand Prix in Malaysia, leading to a 45-minute race delay and driver complaints about the sport's complexity.
• The issue arose from a mandated 250kW power limit in rain-affected conditions, combined with low speeds and specific circuit sectors, triggering a 60-second emergency lockdown that cut engine power and prevented cars from restarting.
• The FIA quickly developed and distributed updated software to remove the power limit in affected sectors, allowing cars to circulate and the race to eventually start; this fix was a rushed but necessary response under time pressure.
• The bug was not detected earlier due to limited wet-weather testing of the new 2026 cars, as most testing occurred in dry conditions and did not replicate the extremely low speeds seen on the formation lap.
• FIA officials acknowledged the complexity of hybrid power units and the collaborative nature of the software development, committing to a full review to prevent recurrence, though they admitted that while this specific issue is unlikely to reoccur, other glitches cannot be entirely ruled out.