In November 2025, a news report about the potential for Chinese-made new energy buses to be "halted with a single click" ignited widespread debate across Europe. According to Deutsche Welle, Norwegian transportation operator Ruter disclosed test results indicating that Chinese bus manufacturer Yutong Group holds access permissions to its bus control systems for software updates and diagnostic tasks. Ruter underscored that China has not misused these permissions; however, it acknowledged that, theoretically, the function could pose a risk of exploitation that might disrupt normal bus operations.

In response, Yutong Group clarified that the company strictly adheres to the laws and regulations of the regions where it operates. It further stated that vehicle data is stored in Germany and is encrypted, being used exclusively for vehicle maintenance, optimization, and after-sales service.

The controversy stemmed from safety tests conducted by Norway as part of its efforts to promote transportation electrification. These tests, carried out in underground mines, revealed that Yutong buses are equipped with remote software update capabilities, a feature not found in buses produced by the Dutch company VDL. Ruter announced that it will implement stricter safety protocols, develop firewalls to protect local control systems, and collaborate with relevant departments to establish cybersecurity requirements.