2015 Ford Fusion Owner Manual Printing 1 - Page 257

Maintenance Vehicles driven year-round in non-extreme climates should use prediluted engine coolant for optimum cooling system and engine protection. When Fail-Safe Mode Is Activated WARNINGS Fail-safe mode is for use during emergencies only. Operate your vehicle in fail-safe mode only as long as necessary to bring your vehicle to rest in a safe location and seek immediate repairs. When in fail-safe mode, your vehicle will have limited power, will not be able to maintain high-speed operation, and may completely shut down without warning, potentially losing engine power, power steering assist, and power brake assist, which may increase the possibility of a crash resulting in serious injury. Never remove the coolant reservoir cap while the engine is running or hot. You have limited engine power when in the fail-safe mode, so drive your vehicle with caution. Your vehicle will not maintain high-speed operation and the engine will operate poorly. Remember that the engine is capable of automatically shutting down to prevent engine damage. In this situation: 1. Pull off the road as soon as safely possible and switch off the engine. 2. Tow your vehicle to an authorized dealer. 3. If this is not possible, wait a short period for the engine to cool. 4. Check the coolant level and add if low. 5. Re-start the engine and drive your vehicle to an authorized dealer. Note: Driving your vehicle without repair increases the chance of engine damage. See an authorized dealer as soon as possible. What You Should Know About FailSafe Cooling If the engine coolant supply is depleted, this feature allows the vehicle to be driven temporarily before incremental component damage is incurred. The fail-safe distance depends on outside temperatures, vehicle load and terrain. How Fail-Safe Cooling Works If the engine begins to overheat, the engine coolant temperature gauge will move to the red (hot) area and: A high engine temperature message will appear in the information display. The service engine soon indicator will light. If the engine reaches a preset over-temperature condition, the engine will automatically switch to alternating cylinder operation. Each disabled cylinder acts as an air pump and cools the engine. When this occurs, your vehicle will still operate. However: • The engine power will be limited. • The air conditioning system will be disabled. Continued operation will increase the engine temperature and the engine will completely shut down, causing steering and braking effort to increase. Once the engine temperature cools, the engine can be re-started. Take your vehicle to an authorized dealer as soon as possible to minimize engine damage. 254 Fusion/Mondeo (CC7), enUSA