I observed the ovr heat warning written on audio system of my city aspire 1.5 2015. It remained parked under the sun for quite some time. The sign didn't go away until I switched off the car and started again .... is it something to worry about?
Yes, it is.
Must be warning of the navigation system of the car. Few elec hv warning sensors related to heat jst lik iphone etc. So jst let it cool down b4 u use it coz hot wires n connectors can effect the equipment