I've no idea why it would affect it. It was a suggestion earlier in the thread. I can press the ELD switch after the message and it seems to enable and disable it. I think personally it may have more to do with sticking brakes ( mine squeak when reversing and after I move off from stand still). I can't believe a modern car has brakes that behave like this. My abarth had squeaks when reversing after 30,000 miles from the rear brakes and ended up with new pads to fix it.
The panda has been doing it since almost new :-(
Oh yes, mine went in for 'owl noises' on reversing too.....they said its resonance from the rear brakes due to defective pads. They are getting permission from fiat to replace under warranty as the car has only done 2600 miles. .....watch this space!