If I drive through deep water (as during a flood), does that affect the lubricating grease in my car’s wheel bearings?

Driving through water that is deep enough to cover a car’s wheel bearings can cause contamination of the grease with water, or even wash the grease out of bearings.  After driving through deep water, the vehicle should be checked by a mechanic, and the wheel bearings should be relubricated if necessary.