2015 Ford Taurus Owner Manual Printing 1 - Page 301

300 Maintenance instrument cluster or center stack display to alert the driver that battery protection actions are active. See the Information displays in the Instrument Cluster and Entertainment Systems chapters for more information. These messages are only for notification that an action is taking place, and do not necessarily indicate that an electrical problem exists or that the battery requires replacement. Electrical accessory installation To ensure proper operation of the BMS, any electrical devices that are added to the vehicle should not have their ground connection made directly at the negative battery post. A connection at the negative battery post can cause inaccurate measurements of the battery condition and potential incorrect system operation. Note: Electrical or electronic accessories added to the vehicle by the dealer or the owner may adversely affect battery performance and durability and may also affect the performance of other electrical systems in the vehicle. When a battery replacement is required, the battery should be replaced with a Ford recommended replacement battery that matches the electrical requirements of the vehicle. After battery replacement, or in some cases after charging the battery with an external charger, the BMS requires eight hours of vehicle sleep time (key off with doors closed) to relearn the new battery state of charge. Prior to relearning state of charge, the BMS may disable electrical features (to protect the battery) earlier than normal. CHECKING THE WIPER BLADES Run the tip of your fingers over the edge of the blade to check for roughness. Clean the wiper blades with washer fluid or water applied with a soft sponge or cloth. 2015 Taurus Owners Guide gf, 1st Printing, April 2014 USA (fus)