I have had my O roadster in twice for this. The service panel reads HI on the readout. This pops up every now and then. The oil level is fine and my service guy said they can not find the reason. The readout comes and goes with a beep. I can push the reset and it will go off. Is it a sensor problem ? Every time I want to show the service group it leaves the screen. I wan to keep this car a long time and so not want to find out I should have done something else.

 

As long as the level is fine on the dipstick you are safe. If you continue to get that warning there is probably something going on with the sensor.

If the level is too high on the dipstick I recommend purchasing an oil extractor to suck some oil out.