Use this article if…
- Buttons trigger the wrong feature or jumpy volume - map/learning issues (general).
- MK4 → MK4 steering not responding. Re-learn cleanly → SWC pairing.
Quick answer
Wrong or “mixed up” buttons almost always mean the steering control map is wrong. Clear the SWC map completely, power-cycle, and learn keys again only in the supplier’s documented order.
Problem
- Steering buttons trigger the wrong function or act randomly.
Symptoms
- Volume up swaps to track skip.
- Single press registers as double.
- Behavior changes with engine running vs off.
Cause
- Double learning or overlapping profiles.
- Resistor ladder tolerance out of spec when cold.
- CAN translator on wrong vehicle firmware.
Fix Step-by-step
- Clear SWC map completely; power-cycle; learn keys in supplier order only.
- Verify no second device (old dongle) still paired to the same input.
- Update module firmware if the vendor provides a changelog matching your chassis.