SOFTWARE UPDATE

BYD SEALION 7 software update 3.0.1: owner guide

SEALION 7 3.0.1 adds phone-navigation information on the HUD where fitted, adjustable notification volume and charging-route preferences for cars using HERE Map. After updating, check the notification volume and enable the route planner if you want it to add charging stops.

Phone navigation on the HUD

Cars equipped with a head-up display can show navigation information from Android Auto and Apple CarPlay on it. The release also refines the HUD presentation of Blind Spot Detection.

Charging-route preferences with HERE Map

The new charging-route feature is off by default. In the navigation settings, open Settings → SOC Settings → Charging Route Planner. Enable Automatically add charging stations, choose the battery-charge targets for arriving at and leaving a charging station, then select Apply. The illustrated screen also has Reset.

This feature requires HERE Map. BYD notes an approximate 10% power-level deviation in its example, so the route’s predicted charge is a planning estimate rather than an exact arrival reading.

Notification volume and daytime lights

For prompt volume, the illustrated screen shows Vehicle → Notifications → Vehicle Prompt Volume with Low, Mid and High; Low is the default.

While parked, open the My Vehicle screen to use the new Daytime Running Light switch.

Other refinements

Danish, Dutch and Swedish BYD Assistant voice packages.
Seat-ventilation operation.
Automatic headlights at night.
Battery preheating during charging in cold conditions.
Connection stability in weak-signal areas.
App-store layout: popular search terms wrap to the screen width and app details support landscape presentation.
Assistance voice prompts, including removal of selected spoken DOW, ACC and ICC messages. This is a change to the spoken prompts, not a claim that the underlying assistance functions are removed.

Release details

BYD Europe Service identifies this release as SEALION 7 V3.0.1, announced on 30 September 2025 with staged European rollout. This guide now follows that exact announcement. The separate BYD Denmark archive labels its September entry 3.0.0; use your car’s full package and notice when comparing those labels.

Park on a flat surface and select P for the time shown in the vehicle’s update prompt.
Ensure a stable network signal and battery charge above 20%; close the doors and bonnet.
Stop battery charging or discharging, disconnect external OBD equipment and leave Transport Mode.
Start or schedule the update through the car’s screen. Safety note: leave installation uninterrupted even if the screen briefly goes black, running lights illuminate or warnings appear; interrupting it can cause installation failure.
Wait for the completed-update message; BYD says the car can be locked and left during installation.
Check notification volume, phone navigation on the HUD where fitted, and HERE charging-route preferences if you use that map. Normal controls should be available after completion.

If the update fails

If installation reports a failure or a warning persists afterwards, follow the on-screen message and contact a BYD dealer or BYD Customer Service. Give them the full system version and exact error, and ask them to check the failed package and recovery required. If only the version label differs, ask them to identify the release for that full package.