2015 Ford F150 SuperCrew Cab Owner Manual Printing 1 - Page 312

Maintenance Note: If your battery has a cover/shield, make sure it is reinstalled after the battery has been cleaned or replaced. Note: Battery posts, terminals and related accessories contain lead and lead compounds. Wash hands after handling. Note: Electrical or electronic accessories or components added to your vehicle by the dealer or the owner may adversely affect battery performance and durability. Your vehicle is equipped with a Motorcraft maintenance-free battery which normally does not require additional water during its life of service. For longer, trouble-free operation, keep the top of the battery clean and dry. Also, make certain the battery cables are always tightly fastened to the battery terminals. If you see any corrosion on the battery or terminals, remove the cables from the terminals and clean with a wire brush. You can neutralize the acid with a solution of baking soda and water. It is recommended that the negative battery cable terminal be disconnected from the battery if you plan to store your vehicle for an extended period of time. Because your vehicle's engine is electronically controlled by a computer, some control conditions are maintained by power from the battery. When the battery is disconnected or a new battery is installed, the engine must relearn its idle and fuel trim strategy for optimum driveability and performance. Flexible fuel vehicles (FFV) must also relearn the ethanol content of the fuel for optimum driveability and performance. To begin this process: 1. With your vehicle at a complete stop, set the parking brake. 2. Put the gearshift in P(Park), turn off all accessories. 3. Start the engine. Run the engine until it reaches normal operating temperature. 4. Allow the engine to idle for at least one minute. 5. Turn the air conditioning on and allow the engine to idle for at least one minute. 6. Release the parking brake. With your foot on the brake pedal and with the air conditioning on, put your vehicle in D (Drive) and allow the engine to idle for at least one minute. • If you do not allow the engine to relearn its idle trim, the idle quality of your vehicle may be adversely affected until the idle trim is eventually relearned. 7. Drive your vehicle to complete the relearning process • Your vehicle may need to be driven 10 miles (16 kilometers) or more to relearn the idle and fuel trim strategy along with the ethanol content for flexible fuel vehicles. • For flexible fuel vehicles, if you are operating on E85, you may experience poor starts or an inability to start the engine and driveability problems until the fuel trim and ethanol content have been relearned. If the battery has been disconnected or a new battery has been installed, the clock and radio settings must be reset once the battery is reconnected. Always dispose of automotive batteries in a responsible manner. Follow your local authorized standards for disposal. Call your local authorized recycling center to find out more about recycling automotive batteries. 309 F-150 (), enUSA, First Printing