If you wish to detail the engine compartment - ie quick wash,
I take it for safety reasons the high voltage battery will have to be shut down?
Using the GM procedure.
Having the car OFF with no transmiters inside the vehicle, PULLING the manual disconnect
in the centre console and waiting 5 minutes - However this does NOT garantee the power is really disconnected as one of the contactors in the main battery MAYBE stuck ON !
* So is there any other wayto make sure the voltage has dropped from the 380V to the recommended 3V WITHOUT taking the enginge heat sheild of to disconnect the power connectors to the gearbox/electric motors ?
PS Wear the GM recommended safety glasses and high voltage leather gloves, 1 hand for working prefered
otherwise it may the last time you work on a Volt. - It's going to be interesting if local Australian dealership let their apprentices loose on Volts as it could be a case of natural selection.
Every fuel source has it's own dangerous petrol - lpg and locally we have had plenty of Darwin award type people who were not alive to collect there respective trophies by blowing themselves up, I wonder if electric powered cars have caused similar yet ...?