Used Hyundai Ioniq 5 Body Control Module

The Hyundai Ioniq 5 is a pure battery-electric vehicle built on Hyundai's E-GMP platform, and it does not use a traditional Body Control Module (BCM) in the way that conventional petrol or diesel cars do. Its body and electrical functions are managed by a network of dedicated controllers integrated into the EV architecture, rather than a single centralised BCM as found on older Hyundai models. If you are trying to resolve a fault with lighting, locking, windows or another body electrical system, you are most likely looking for a specific module such as a Body Domain Controller, a Smart Junction Box, or a similar EV-specific unit — your breaker will be able to identify the correct part against your registration.

Because the Ioniq 5 distributes body electrical control across several dedicated modules rather than one BCM, the correct part depends entirely on which system has failed — for example, the Smart Junction Box controls many body electrical functions and is the closest equivalent to a traditional BCM. Describe the fault you are experiencing to your breaker and quote your full registration, so they can identify the exact module number from their donor vehicle. Searching for 'Smart Junction Box Hyundai Ioniq 5' or 'Body Domain Controller Hyundai Ioniq 5' is likely to be more productive than searching for a BCM.

The Ioniq 5 was launched in the UK in 2021 and received a facelift for the 2024 model year, bringing updates that included changes to vehicle electronics and software architecture. Because of this, a module from a pre-facelift car (2021–2023) and one from a post-facelift car (2024 onwards) are unlikely to be interchangeable — always confirm against your exact registration with the breaker. Even within the same generation, software calibration tied to the specific vehicle's VIN means any replacement module will almost certainly require programming after fitting.

Trim level — whether Standard Range, Long Range, N Line, or Ultimate — is unlikely to change the fundamental body control modules on the Ioniq 5, but drivetrain layout (rear-wheel drive versus dual-motor all-wheel drive) may affect certain control units, so always confirm the exact variant with your breaker. That said, because these modules are software-calibrated to the individual vehicle, the match needs to be made against your registration rather than just your trim name. Your breaker will be able to cross-reference the part number from their donor vehicle to ensure it is the correct unit for your car.

The Ioniq 6 shares Hyundai's E-GMP platform with the Ioniq 5, so there may be some engineering commonality, but the specific module part numbers, software calibration and connector configurations differ between models and cannot be assumed to be interchangeable. The Kona Electric uses a different platform entirely, making cross-fitment even less likely. Always quote your registration to the breaker and ask them to match the exact part number from their donor vehicle — do not assume platform sharing means the modules are compatible.