BYD Seal Software and Driver Assistance (ADAS) Quirks

Q: What are the most common software and safety system complaints on the BYD Seal?

A: The most frequent complaints from UK drivers center around the Advanced Driver Assistance Systems (ADAS). Because the vehicle is calibrated to strict global safety rules, the systems can feel overly sensitive on narrow, winding UK roads.

• Over-Intrusive Lane Keep Assist (LKA): Many owners note that the steering wheel assistance can feel “jerky” or heavy-handed, occasionally fighting the driver when navigating tight country lanes or passing parked cars.
• Aggressive Speed Limit Warnings: The traffic sign recognition system can misread UK side-road speed signs (e.g., reading a 20mph slip-road sign while you are on a 40mph main road), resulting in frequent audio alerts.
• The Fix: Most of these alerts can be muted via the 15.6-inch touchscreen before setting off. BYD has rolled out several Over-The-Air (OTA) software updates that have significantly smoothed out the steering intervention and reduced false alarms compared to early 2023/2024 build models.