Chrysler is recalling 400,000 Dodge Caravans and Chrysler Town & Country minivans over concerns that road salt may corrode sensors, preventing air bags from properly deploying. Chrysler told the government, “brass brushings on the sensors could corrode and crack on the front air bags, allowing water to enter the sensor and causing it to fail.” Were that to happen, the air bag warning light would illuminate, meaning you should try really hard not to crash.