Hi.
My car is going in to limp mode, and I have no idea what is causing it.

The error codes I have is:
P0578 - Cruise Control Multi-Function Input A Circuit
P2135 - Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation
U2023 - Vehicle Communication Network Fault
U1900 - CAN communication bus fault
C1750 - Accelerator Position Sensor Out of Range
B1300 - Power door lock circuit failure
B2477 - Module Configuration Failure
P0581 - Cruise Control Multi-Function Input A Circuit High

Any idea what to do?

 

Find a mechanic ?

Could be wiring issues, water ingress, faulty control modules...but the internet is unlikely to fix it.