Recalls: BYD Sealion 7
Overview
OverviewManufacturers, or importers, issue recalls for defects or faults which have the potential to cause injury. Generally, manufacturers will inform the original buyers if their vehicle is subject to a recall and of the steps required to remedy the defect or fault. Please note that the recalls below (if any) are for Australian-delivered vehicles only. Furthermore, the number of recalls should not be taken as an indication of a model’s reliability or its safety more generally.
Recalls: BYD Sealion 7
No recall information is available for the BYD Sealion 7.
Problems and faults: BYD Sealion 7
Overview
OverviewThis section identifies potential problems, causes and fixes based on the experiences of owners and repairers, online sources and technical service bulletins. This information is provided solely for reference purposes and AustralianCar.Reviews recommends that only properly qualified persons carry out repairs or modifications. Furthermore, the number of items below should not be taken as an indicator of a model’s reliability or the frequency with which they may occur.
To report a problem or fault to the AustralianCar.Reviews team, please use the Contact Us form. Note that AustralianCar.Reviews does not offer advice on automotive problems or disputes; such enquiries will not receive a reply. For vehicles purchased from dealers after 1 January 2011, please see our Australian Consumer Law fact sheet.
2025-26 BYD Sealion 7: “Power Limited” propulsion system warnings
For 2025-26 BYD Sealion 7 vehicles, drivers may see a yellow “Power Limited” warning on the digital instrument cluster while driving, often at highway speeds. This is sometimes accompanied by a noticeable reduction in available torque and acceleration.
The fault is typically triggered by a software logic error in the Power Domain Control or a communication anomaly between the high-voltage battery sensors and the motor controller. It is rarely a physical hardware failure of the Blade Battery itself.
In many cases, stopping and restarting the vehicle (a “power cycle”) clears the temporary error. To permanently fix this problem, however, a BYD service centre needs to perform a firmware update to re-calibrate the sensor communication thresholds.
2025-26 BYD Sealion 7: audio system goes silent
For 2025-26 BYD Sealion 7 vehicles, owners have reported that the sound system sometimes goes silent – this affects not just the radio/music, but also critical safety sounds such as navigation prompts, parking sensor beeps, turn signal clicks, and speed limit warnings.
This is a known fault in the DiLink 5.0 software architecture, where the audio processing module hangs or fails to initialize upon vehicle start-up. It is often exacerbated by simultaneous Bluetooth and Wireless CarPlay/Android Auto connection attempts.
To deal this problem, owners can perform a hard reset by holding the physical power/volume scroll wheel on the centre console for approximately 10 seconds until the screen reboots. BYD has been rolling out Over-the-Air (OTA) updates (v1.2 and later) specifically to address this audio handshake error.
BYD Sealion 7: overly sensitive Fatigue Monitoring and ADAS interventions
For BYD Sealion 7 vehicles, owners have reported that the fatigue monitoring and Advanced Driver Assistance System (ADAS) are overly sensitive. Specifically,
- the Driver Monitoring System (DMS) may issue frequent, intrusive audible alerts for “fatigue” or “distraction”, even when the driver yawns, checks the side mirrors or wears certain types of polarised sunglasses; and
- the Lane Keep Assist (LKA) can be overly aggressive on narrow or poorly marked roads
To achieve high ANCAP safety ratings, the system’s sensitivity was tuned to a high baseline. Furthermore, the software was highly reactive to eye-lid positioning and head angle, often misinterpreting natural driving glances as signs of sleepiness.
While the sensitivity could be adjusted in the “Settings > ADAS” menu, these settings often reset to “Standard” when the car is started. Some owners have found that keeping the camera lens (on the A-pillar) clean reduces false positives).
BYD Sealion 7: “Rapidgate” (DC fast-charging thermal throttling)
While the BYD Sealion 7 supports high peak charging speeds (up to 230 kW) when using DC fast-charging, owners have found that the charging rate drops significantly – often to below 80 kW – once the battery exceeds 50 per cent State of Charge (SoC). This is even more pronounced during a second or third charging stop on a road trip.
Unlike some electric vehicles that use comprehensive liquid cooling throughout the battery pack, the BYD Sealion 7’s thermal management system can struggle to shed heat quickly enough during successive high-speed DC sessions. To protect the “Blade Battery” from heat degradation, the software aggressively throttles the intake power.
Owners can mitigate slow charging rates by pre-conditioning the battery via the navigation system and aiming to charge in the 10% to 50% SoC window (where the speeds are highest), rather than trying to charge to 80% or 100% at a fast charger.
BYD Sealion 7: interior rattles and durability of finishes
For early 2025 BYD Sealion 7 vehicles, there have been reports of ticking and plastic-on-plastic creaking noises from the dashboard and central infotainment mount. These rattles are usually caused by minor misalignments of the interior trim clips or a lack of damping material between the rotating screen housing and the dashboard. Dealers may be able to resolve these rattles by applying felt tape or silicone lubricant to the affected plastic junctions under warranty.
The “Piano Black” centre console trim is also susceptible to fine scratches from daily use. For this problem, some Australian owners apply an aftermarket clear protective film (PPF) or a “carbon fibre” style overlay to the centre console to prevent further scratching.
