Toyota Proace, Proace City, Proace Verso Recall R/2025/315: Engine ECU Software Update Due To Insufficient On-board Diagnostics, Who Is Affected And What To Do
- Low
- How serious
- 20 Aug 2025
- Launched
- 6,117
- vehicles in the UK
- 5WB30 /CI25-027
- Manufacturer’s campaign code
Toyota recalled Proace, Proace City, Proace Verso vehicles built between 7 July 2017 and 16 December 2021. There is an issue where the Malfunction Indicator Lamp (MIL) may not activate in case of a fault in the Selective Catalytic Reduction (SCR) system and/or Diesel Particulate Filter (DPF). The dealer will carry out an update to the software of the Engine Electronic Control Unit. You won't usually pay for it.1
What’s Wrong
There is an issue where the Malfunction Indicator Lamp (MIL) may not activate in case of a fault in the Selective Catalytic Reduction (SCR) system and/or Diesel Particulate Filter (DPF).
DVSA's Original Wording
Concern: Engine ECU software update due to insufficient on-board diagnostics Defect: For affected vehicles there is an issue where the Malfunction Indicator Lamp (MIL) may not activate in case of a fault in the Selective Catalytic Reduction (SCR) system and/or Diesel Particulate Filter (DPF). Remedy: Carry out an update to the software of the Engine Electronic Control Unit
Contains public sector information licensed under the Open Government Licence v3.0.
The Risk
The recall notice describes the concern as: engine ECU software update due to insufficient on-board diagnostics.
The Fix
The dealer will carry out an update to the software of the Engine Electronic Control Unit. The fix is a software update, which usually takes under an hour at the dealer.
Are You Affected?
Proace, Proace City, Proace Verso built between 7 July 2017 and 16 December 2021 may be included. Toyota estimates 6,117 vehicles in the UK. Enter your registration to check, then confirm by VIN with Toyota, because not every car in the date range may be included.
Which Car Is It?
Choose the make and model so we can match recalls to your car.
What To Do Now
- Check your car by registration above, then by VIN with Toyota.
- Book with any franchised Toyota dealer, quoting the campaign code 5WB30 /CI25-027 or the DVSA reference R/2025/315. See how to get a Toyota recall fixed.
- Follow the letter's instructions until the repair is done. See can you drive a car with a recall?.
Related Recalls
| Launched | Vehicle and fault | Severity | Reference |
|---|---|---|---|
| Proace, Proace CityWater pump replacement on certain Toyota Proace and Proace City | Urgent | R/2026/200 | |
| Proace, Proace CityPotential defect of fuel supply rail on certain Toyota Proace and Proace City | Urgent | R/2026/017 | |
| Proace, Proace City, Proace City EV, Proace City Verso EV and 2 moreIn-Vehicle Infotainment ECU software update via OTA on certain Toyota Proace and Proace City | Low | R/2025/552 | |
| Proace, Proace VersoEngine control unit reprogramming due to IUPR calculation problem on certain Toyota Proace and Proace Verso models | Low | R/2025/489 | |
| Proace CityInconsistent Tyre pressure monitoring system alert on certain Toyota Proace City | Urgent | R/2025/447 |
This is one of 250 Toyota recalls in DVSA’s data. The Toyota recall launched before it was R/2025/313 on 18 Aug 2025, for faulty automatic emergency brake Proace Max. The one launched after it was R/2025/304 on 21 Aug 2025, for front suspension arm bolt replacement on certain Toyota Proace and Proace Verso. You can also see every Toyota recall, all recalls launched in 2025 and software recalls across every make.
Source: DVSA recall R/2025/315, launched 20 August 2025. Data updated 15 October 2026. How we grade urgency.
Sources
- The Code does not itself say repairs are free. GOV.UK guidance says "You will not usually have to pay for any repairs or parts under a safety recall." gov.uk Checked 15 Oct 2026.