A software calibration error in the Engine Electronic Control Unit (ECU) causes incorrect IUPR (In-Use Performance Ratio) values, which may delay the malfunction indicator (MIL) warning. As a result, the vehicle could exceed emission limits before the driver is alerted.
The Toyota Proace and Proace Verso vehicles affected by this recall were manufactured between 2022 and 2025.
Toyota recall code: CI25-040
Affected models: Proace, Proace Verso
Vehicle numbers (worldwide): n/a
Source: Alert 47/2025: SR/04074/25
