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Vehicle recallDVSA

Toyota BZ4X recalled over an electrical or software fault

Electrical or software fault

For affected vehicles due to the programming of the HVAC control ECU software under certain conditions such as a specific failure mode of the electrical compressor the HVAC system will enter a failsafe mode that suspends the heater operation of the system and affects defroster function.

Check your product

Only vehicles within the listed VIN ranges or build dates are covered. A franchised dealer can confirm from your VIN.

1 identifier listed for this notice.

  • BZ4X

    Build datesThe build or first registration date is on the V5C.
    • 02/11/2021 – 02/06/2025
    Manufacturer referenceThe manufacturer’s own campaign number. Quote it to the dealer.
    • 5GG46 (25SD-026)

What to do now

The defect is electrical or in the vehicle’s software.

  1. Enter your registration number on the GOV.UK recall checker, or ask a franchised dealer to check the VIN.
  2. Book the recall work with a franchised dealer for the make. Recall repairs are carried out free of charge.
  3. Make sure the DVLA has your current address, as recall letters go to the registered keeper.

Why it matters. Electrical and software faults can affect lights, warnings, cameras or driver assistance systems, and some can lead to a loss of function while driving.

Repairs and costs

You should not pay for a safety recall repair. Book it with a franchised dealer for the make and take your V5C or registration number.

If you have already paid for a repair to fix the same defect, ask the manufacturer whether it will reimburse you.

From the official notice

Published by the Driver and Vehicle Standards Agency (R/2025/372). Quoted as issued.

Summary

For affected vehicles due to the programming of the HVAC control ECU software under certain conditions such as a specific failure mode of the electrical compressor the HVAC system will enter a failsafe mode that suspends the heater operation of the system and affects defroster function.

Defect

For affected vehicles due to the programming of the HVAC control ECU software under certain conditions such as a specific failure mode of the electrical compressor the HVAC system will enter a failsafe mode that suspends the heater operation of the system and affects defroster function.

Remedy

Reprogram the HVAC control ECU and inspect the compressor .

Models

BZ4X

Open the DVSA notice

Questions

Why are Toyota BZ4X being recalled?

The defect is electrical or in the vehicle’s software. Electrical and software faults can affect lights, warnings, cameras or driver assistance systems, and some can lead to a loss of function while driving.

How do I know if my vehicle is affected?

Enter your registration number on the GOV.UK vehicle recall checker or ask a franchised dealer, who can check your VIN against the manufacturer’s campaign. The VIN ranges and build dates published by the DVSA are listed on this page.

What should I do now?

Enter your registration number on the GOV.UK recall checker, or ask a franchised dealer to check the VIN. Book the recall work with a franchised dealer for the make. Recall repairs are carried out free of charge.

Will the repair cost anything?

You should not pay for a safety recall repair. Book it with a franchised dealer for the make and take your V5C or registration number. If you have already paid for a repair to fix the same defect, ask the manufacturer whether it will reimburse you.

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