Ford Focus Owner's Manual page 256

256
WARNING: Battery posts, terminals and related accessories
contain lead and lead compounds. Wash hands after handling.
Your vehicle is equipped with a Motorcraft maintenance-free battery
which normally does not require additional water during its life of service.
Note: If your battery has a cover/shield, make sure it is reinstalled after
the battery has been cleaned or replaced.
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.
To ensure proper operation of the battery management system (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 or components 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 only be
replaced with a Ford recommended replacement battery that matches
the electrical requirements of the vehicle.
When the battery is disconnected or a new battery installed, the
automatic transmission must relearn its adaptive strategy. As a result of
this, the transmission may shift firmly when first driven. This operation is
considered normal and will fully update transmission operation to its
optimum shift feel.
If the battery has been disconnected or a new battery has been installed,
the clock and the preset radio stations must be reset once the battery is
reconnected.
Note: 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.
2013 Focus (foc)
Owners Guide gf, 1st Printing
USA (fus)
Maintenance