FORD 2015 Mustang - Manual (Page 224)

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.
Battery Management System (If
Equipped)
The battery management system (BMS)
monitors battery conditions and takes
actions to extend battery life. If excessive
battery drain is detected, the system may
temporarily disable certain electrical
features to protect the battery. Those
electrical accessories affected include the
rear defrost, heated/cooled seats, climate
221
Mustang (), enUSA, First Printing
Maintenance