2002 Ford Focus Owner Guide 4th Printing - Page 204

Driving DRIVING THROUGH WATER Do not drive quickly through standing water, especially if the depth is unknown. Traction or brake capability may be limited and if the ignition system gets wet, your engine may stall. Water may also enter your engine's air intake and severely damage your engine. If driving through deep or standing water is unavoidable, proceed very slowly. Never drive through water that is higher than the bottom of the hubs. Once through the water, always try the brakes. Wet brakes do not stop the vehicle as effectively as dry brakes. Drying can be improved by moving your vehicle slowly while applying light pressure on the brake pedal. Driving through deep water where the transaxle is submerged may allow water into the transaxle and cause internal transaxle damage. 204