Thank you for your question and sorry for the delay in replying.
My name is Steve and I am a fully qualified vehicle technician with over 30 years in the trade, hopefully I can help.
From the information i have there is no connection between the screen and the parking system on your vehicle.
From your description I believe this may just be a coincidence. The parking sensors are activated when the vehicle drops down to parking speed and I would suspect that the fault is either with one of the front sensors or the wiring connection to the sensor. It is possible that water may have contaminated the plug and caused a short within the system.
It may just need the plugs on each sensor removing and drying out, or it may need a new sensor, hopefully this will be covered by your warrantwise policy.
I hope this answers your question but do please feel free to ask me any further details.
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