- Max Verstappen joked he has “installed antivirus” to avoid a repeat of the 2026 wet-weather software glitch that stalled cars in Malaysia.
- The FIA resolved a lock-down bug triggered by 250kW wet-race rules through software updates deployed in Sepang, Singapore, and tested in Austin.
- With rain forecast for the Sao Paulo Grand Prix, Verstappen aims to capitalize on his historic success at Interlagos amid tight front-running competition.
Formula 1’s transition to the 2026 power unit regulations faced an unexpected hurdle during its initial run in wet conditions, creating dramatic delays and an urgent technical response. As the paddock arrives at the Autódromo José Carlos Pace for the Sao Paulo Grand Prix under the threat of rain, drivers and technical teams remain vigilant following a high-profile engine software bug that crippled half the field earlier in the season.
Software Glitches and the Wet-Weather Engine Dilemma
The first wet race for Formula 1’s 2026-specification cars encountered severe setbacks at the Sepang International Circuit. During formation laps behind the safety car, nearly half the grid came to an unexpected standstill. Investigations quickly traced the failure to a software bug associated with the mandatory 250kW output restrictions imposed by the FIA for wet-weather competition. In the slowest segments of the track, the flaw triggered a safety lock-down across the electric motors. Because the hybrid systems could not deliver the electric power required to mitigate turbo lag, drivers were left stranded with zero response when pressing the throttle.
Race officials acted rapidly in Malaysia to salvage the event, lifting power unit restrictions across problematic minisectors. The FIA then delivered updated software patches to power unit manufacturers and teams within roughly 20 minutes, allowing teams to recalibrate their engine maps and start the race. The identical contingency measure was employed during the Singapore Grand Prix, paving the way for targeted physical testing during practice at the United States Grand Prix in Austin.
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At the Circuit of the Americas, the governing body released a formal update regarding its low-grip system trials:
“As part of the ongoing refinements to the Power Unit software for low grip mode, the FIA together with the teams and Power Unit manufacturers will run a simulation at the end of FP1, with cars running on low grip mode, using specific driver inputs during the in-lap to test additional software protections. This will mean that cars will be running for a short distance at low speed at Turn 15 at the end of the session.”
FIA single-seater director Nikolas Tombazis confirmed the oversight originated because the regulator lacked adequate wet-weather testing opportunities with the new 2026 machinery prior to race conditions. While Tombazis guaranteed that this precise bug would not return, he acknowledged that unforeseen glitches can never be entirely eliminated from complex modern powertrains.
Verstappen Lightens the Mood Ahead of Interlagos Weather Risks
Forecast models for Sao Paulo suggest precipitation could heavily impact running at Interlagos. During the official FIA press conference, drivers were queried about their trust in the software fixes following the Sepang disruption. Three-time Interlagos winner Max Verstappen deflected the tension with humor, stating: “I have installed antivirus in my car, so I’ll be fine!”
When Racing Bulls driver Arvid Lindblad voiced optimism that the underlying technical problem had been permanently rectified, the Red Bull Racing driver quipped: “You’ll be on the same software, mate, so don’t worry!”
Verstappen approaches the Brazilian venue with an outstanding wet-weather pedigree. The Dutch driver surged from the pitlane to the podium last year and mounted an iconic drive to victory from 17th on the grid in 2024, striking a critical blow against Lando Norris’s championship chase. His rain-mastery at Interlagos dates back to his display in 2016, highlighted by a bold outside pass on Nico Rosberg.
Reflecting on the venue’s history and dynamic weather conditions, Verstappen stated:
“It’s a fantastic track and good for racing. And yeah, it has had some crazy races at times, also for me. Winning from starting up front or winning after coming from the back with rain races and stuff like that. It’s looking like there’s a chance of rain again, so that’s exciting.”
Despite claiming victories in three of the past four Grands Prix, the Red Bull driver stopped short of proclaiming himself the outright favorite, pointing out the razor-thin margins separating the top contenders and Ferrari’s superior pace in Austin:
“It’s difficult to say anything for this weekend, because I think the gaps are so tight up front that sometimes it just comes down to nailing the setup or the deployment, all these kind of things.”
“The last few years, I think Brazil has always been a sprint event. So now I guess we have a little bit more time to set up the car, which might be good or might be bad. I don’t know, but we’ll just see how it goes.”
Why This Matters
The 2026 technical regulations place unprecedented emphasis on hybrid energy management, increasing the role of software calibration in wet-weather driveability. The Sepang shutdown underscored the operational risks of introducing complex energy restrictions without extensive wet baseline testing. With rain frequently upending race strategies in Sao Paulo, the FIA’s targeted revisions face their truest operational test. A clean, uninterrupted wet race at Interlagos would prove that both the governing body and engine suppliers have successfully ironed out the initial vulnerabilities of Formula 1’s modern hybrid systems.
Frequently Asked Questions
What caused the cars to stop during the wet race in Sepang?
The stoppage occurred due to a software error tied to the 250kW wet-weather limit mandated by the FIA. The coding flaw forced electric motors into an automatic lock-down state in slow corners, leaving engines without sufficient electric assistance to compensate for turbo lag when drivers applied the throttle.
How did the FIA resolve the software issue before Sao Paulo?
The FIA initially lifted the restrictions across specific corner sectors and transmitted software updates directly to engine manufacturers in Malaysia and Singapore. The federation then executed dedicated low-grip simulation tests at Turn 15 during FP1 in Austin to ensure defensive code protections prevent lock-down recurrences.
What makes Max Verstappen’s wet record at Interlagos notable?
Verstappen has achieved three victories at the circuit, often from disadvantaged track positions. His most prominent wet drives at Interlagos include recovering from 17th on the grid to win in 2024, securing a podium from a pitlane start, and his breakthrough wet-weather drive past Nico Rosberg in 2016.
