SOFTWARE UPDATE
BYD ATTO 2 Comfort software update 2.3.0
ATTO 2 Comfort 2.3.0 changes the driver-monitoring shortcut and tidies up the screen wording, including the air-conditioning icon. After updating, try the revised shortcut while parked so its new action is familiar.
What changes
- The Driver Monitoring System (DMS) quick control is revised.
- Interface and text prompts are refined.
- The air-conditioning icon changes.
Which ATTO 2 package?
The August 2026 Comfort package is 49.1.6.2605092.1. Active and Boost use a separate 2.3.0 package, 13.1.33.2606100.1; their navigation changes are covered in the linked guide.
Install when your car offers it
Matching released EU updates apply to the matching UK car, as confirmed by UK owners. Offers are staged by VIN, so another owner receiving it first does not mean yours has a fault.
- Park where the car can remain unused for the duration shown in its update prompt.
- Read the car’s notice and match the model, edition, trim and complete package.
- Meet the battery and connection requirements shown by the car.
- Start or schedule the update through the vehicle’s own screen. Safety note: leave installation running as instructed; interrupting it or using unofficial firmware can leave the software unusable.
- Wait for the completed-update message.
- Check the DMS control and the revised A/C icon. The normal controls should be available again after completion.
If the update fails
If installation reports a failure or a warning remains after completion, follow the displayed message and contact a BYD dealer or BYD Customer Service. Give them the full installed version and exact error, and ask them to check the failed package and the required recovery. If the update simply has not appeared, wait for the vehicle notification unless a function is missing or the car reports a fault.
Related links
Source: BYD Europe Service release notice · BYD ATTO 2 release archive · BYD owner-manual library. Checked 22 October 2026.