Software
4 article(s) on «Software». Most serious issues first.
Firmware and forced updates over SIM
The update notification arrives over the built-in SIM, but the firmware package itself downloads only over Wi-Fi. What pulling the SIM actually achieves, why updates hang for months and what it takes to unstick them.
The Tesla API went paid: what actually broke in Teslamate in June 2026
On 13 June 2026 the chats picked up the news of a paid Fleet API subscription, around 10$ a month. Overnight into 14 June half the owners lost Teslamate to a 403 error, and the two events were tied together on the spot. The post-mortem showed a different cause: Tesla’s authorisation server stopped letting in clients with an old TLS handshake. A client-side fix closed it within a day and nobody had to pay.
Replacing Tesla control modules: why nothing works without VIN pairing
Every Tesla control module, from the BMS to the airbag module, is paired to the VIN of a specific car. You can't just 'plug in' a new or used module: without the pairing procedure errors pile up, all the way to the car refusing to drive. Which modules require pairing, how a used module differs from a new one (unpairing from the previous car, 3-6 h) and what the procedure looks like.
Tesla keys: Key Card, Phone Key and the fob, the 19-key limit, pairing and losing all keys
How the three Tesla key types work (NFC card, phone over Bluetooth, fob), why up to 19 keys can be paired to one car, how keys tie into driver profiles, and what to do if ALL keys are lost: restoring access via the immobilizer with proof of ownership. Plus the mandatory step after buying used.