Peugeot 3008 Hybrid Transmission Problems

That sounds rough. I had similar transmission problems with my 2016 Volvo XC60, but without the hybrid part. Shifting problems, emergency mode... the works! It turned out to be a faulty TCM – that's the Transmission Control Module. Did you try resetting the error memory? Sometimes that works.

Thanks. I already reset the error memory, but it didn't work. The error returns immediately. Was the behaviour identical, especially the paddle shifters and gear slippage?

Yep, that's a classic sign that the TCM is having issues. Paddles stopped responding, and the shifts felt super rough – almost like the transmission was fighting itself. Since you've already tried resetting the codes and it's still acting up, I’d seriously consider going to a workshop. They can properly diagnose the control unit and see if it needs replacing or reprogramming.

I appreciate the advice. I suspected a control unit issue, and your experience reinforces that. I visited the workshop, and you were right. The defective transmission control unit was replaced. The final bill was 1000€. Everything works now. Thanks again!