Escape Fault Memory Lock Active

Sounds like your ECU is acting up. A memory lock suggests the computer system isn't happy. It's like when your phone freezes and needs a reboot, but in this case, the car's brain is locking up certain functions. Have you checked the battery voltage and the alternator output? A weak battery can cause all sorts of weird electrical gremlins.

Thanks for the quick response! I checked the battery voltage, and it seems okay at around 12.5V with the engine off. I haven't checked the alternator output yet. Where exactly should I measure that, and what values should I be looking for? Also, could a faulty ground connection cause this kind of issue?

12.5V at rest is decent, but you need to see what the alternator is pushing out while the engine's running – should be between 13.5 and 14.5V. Measure at the battery terminals. A bad ground absolutely can cause this. Think of it like a leaky pipe; the electricity isn't flowing smoothly. Given the 'memory lock' error, and your checks so far, taking it to a workshop for a proper ECU diagnostics check might be your best bet. They have the tools to dig deeper than we can here.

Thanks for the advice! I checked the alternator output and it was a bit low. Took it to the shop as suggested. Turns out, there was indeed an undervoltage issue and the computer needed to be reset and reprogrammed. Cost me 240€, but at least it's fixed now!