Denza, the luxury arm of BYD, has announced an over-the-air software update designed to improve off-road control and ease of use when towing.

The plug-in hybrid B5 (below) and B8 (main) off-roaders will start receiving the version 1.1.0 software update free of charge as of this week.

Towing functionality for the Denza B5 is improved via a new, dedicated towing mode switch in the infotainment display, and cruise control compatibility while using towing mode, designed to improve fatigue management and comfort on longer trips.

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Trailer weight selection is also added, allowing owners to input the details of their trailer, from which Denza claims the vehicle can adjust performance parameters and make changes to related electronic safety and stability systems.

The larger Denza B8 gains the same cruise control in towing mode functionality, and a dynamic range estimation to more accurately portray remaining electric and overall range based on driving conditions.

 Off-road functionality has been improved through changes to traction control management and control software updates to wheel speed and electric motor torque management, some of which were validated from runs up Queensland’s challenging Beer O’Clock Hill off-road course during testing earlier in the year.

In-cabin changes include the addition of an available driver password lock as an additional security feature and changes to the power-folding seats.

The electrically-operated second-row seats in the B5 and B8, and third row in the B8, feature improved resistance detection, designed to stop the folding motion when an occupant or object is detected, preventing possible injury.

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Since launching in Australia in late 2025, Denza has expanded its dealer network to 12 sites across the country.

Year-to-date sales to the end of April show 729 B5s delivered, ahead of closest rival, the GWM Tank 500 on 411 sales, but behind off-road focused Large SUV rivals like the Ford Everest (7081) and Toyota LandCruiser Prado (6385).

The larger, more expensive Denza B8 has recorded 394 sales, against key rivals like the Nissan Patrol (1785) and Toyota LandCruiser (3867).