The encyclopedia · Product & Design · Product decision · 2025
Volkswagen recalled 44,000 ID.4 EVs because the high-voltage battery could overheat
The 2023–2025 ID.4 used high-voltage battery modules that, in rare cases, could experience thermal propagation and catch fire.
Volkswagen · 2026-01
What happened
In January 2026, Volkswagen filed a recall with NHTSA for 43,881 ID.4 electric vehicles from model years 2023 to 2025. The high-voltage battery modules, supplied by SK On through SK America, could in rare cases experience thermal propagation and overheat, increasing fire risk.
The recall remedy involved installing new Self Discharge Detection software, running a battery health check and replacing individual modules if necessary. Volkswagen had previously recalled some ID.4 vehicles for similar battery issues, indicating a persistent problem in the supplier relationship.
For Volkswagen, still rebuilding trust after Dieselgate, another large safety recall underscored the risks of scaling EV production around a single battery supplier without enough margin for error in thermal management.
Why it happened
- The battery modules from SK On had a latent defect that only surfaced after vehicles were in customer hands.
- Volkswagen's thermal-management and battery-monitoring systems did not detect the risk before deployment.
- The company relied heavily on a single supplier for a critical EV component, concentrating the risk.
- Earlier related recalls suggest the feedback loop between field data and supplier engineering was too slow.
The lesson
An EV is only as safe as its battery module — scaling production before the thermal behaviour is proven across all real-world conditions creates recall risk.
Aftermath
Volkswagen rolled out the recall remedy through dealers. The incident added to scrutiny of EV battery safety and supplier accountability.
Sources
- NHTSA Part 573 Safety Recall Report 26V030
- Volkswagen recalls more than 44,000 EVs for battery fire risk — WardsAuto
- VW, Volvo, Ford issue high-voltage battery fire recalls on EVs and PHEVs — Autobody News
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