Nissan's Server Went Down in China, and Owners Got Locked Out of Their Own Cars

Multiple Dongfeng Nissan owners posted on Chinese social media on August 23 that the Nissan Connect app had suddenly crashed, dropping connections, timing out and refusing logins.

For owners who had gone all-in on the phone-as-key setup, the result was immediate, doors would not unlock and cars would not start, leaving them standing outside their own vehicles on a weekend afternoon.

Dongfeng Nissan issued an apology later that day, blaming a power failure in the server room and saying the app login and remote control functions were down while engineers worked on repairs.

The company stressed that the outage does not affect normal driving and advised owners to carry their physical keys, with dealer hotlines available for emergencies.

The awkward part deserves spelling out. The cars were fine, the cloud was not. Owners holding an old-fashioned key fob simply drove away, while those who had moved their keys entirely into their phones had to wait for a server room to get its electricity back. This has happened before, since a 2021 Tesla app outage locked American owners out of their cars and earned a personal apology from Elon Musk.

Phone keys are supposed to work over local Bluetooth, yet many brands route authentication through the cloud anyway, turning a server hiccup into a locked door. It has been a rough week for Nissan in China, coming off a 58.7% July sales collapse, and now a weekend of annoyed owners. For the whole industry, the lesson is free, anything that opens or starts a car should treat the cloud as a backup, never as the only key.