Not a problem in these cars. Presure washing doesn't really use very much water and this isn't the old days of having to cover up the distibuter and trying to keep the points dry. All the electronics are very well insulated, sealed and protected. BTW, I am not using a gas powered washer that can strip paint. I am using an electric one I bought at Lowes which has less pressure and won't hurt a thing. I also wash the whole car with it.