AAA warns: don't start vehicles exposed to salt water Play

Salt water splashed onto sections of Pacific Coast Highway in eastern Malibu Friday, and at least one concrete dip — at Zuma Beach — was full of salt water.

The "Arizona Crossing" between Westward Beach Road and the Zuma Beach entrance station, used by vehicles leaving the big parking lots, was flooded with standing water at high tide. A reporter dipped his finger in it. It was salty.

That prompts a warning from mechanics at the Automobile Club of Southern California: do not attempt to start or drive vehicles exposed to salt water, which can cause extensive damage even after the water recedes.

AAA's manager of automotive services told the Orange County Register: "Do not attempt to drive your vehicle if any part of the undercarriage has touched salt water."

Salt can damage a vehicle's electrical systems and sensors. That can cause problems with electronic braking systems, engine controls and dashboard warnings.

The warning applies to all engines — gas, hybrid and electric. The damage can show up days after exposure to salt water, as corrosion can take time.

Salt water exposure should be treated as a safety issue, rather than simply a potential repair problem. AAA says that if salt water reaches a high-voltage battery, or anything connected to one, it can create a risk of electrical shorts, shock or fire. All electric vehicles have their motors right next to their tires.

Any car — gas or electric — that is suspected of being exposed to salt water should not be driven or charged until it has been evaluated by a qualified professional, according to advice given by the automobile association.

This story is based on original reporting by the Orange County Register.