HOW DOES THE BATTERY
MANAGEMENT SYSTEM WORK
If excessive battery drain is detected, the
system temporarily disables some
electrical systems to protect the battery.
Systems included are:
• Heated rear window.
• Heated seats.
• Climate control.
• Heated steering wheel.
• Audio unit.
• Navigation system.
A message could appear in the information
display to alert you that battery protection
actions are active. This message is only for
notification that an action is taking place,
and not intended to indicate an electrical
problem or that the battery requires
replacement.
BATTERY MANAGEMENT SYSTEM
LIMITATIONS
After battery replacement, or in some
cases after charging the battery with an
external charger, the battery management
system requires eight hours of vehicle sleep
time to relearn the battery state of charge.
During this time, your vehicle must remain
fully locked with the ignition switched off.
Note: Prior to relearning the battery state
of charge, the battery management system
could temporarily disable some electrical
systems.
Electrical Accessory Installation
To make sure the battery management
system works correctly, do not connect an
electrical device ground connection
directly to the battery negative post. This
can cause inaccurate measurements of
the battery condition and potential
incorrect system operation.
Note: If you add electrical accessories or
components to the vehicle, it could
adversely affect battery performance and
durability. This could also affect the
performance of other electrical systems in
the vehicle.
RESETTING THE BATTERY
SENSOR
When you install a new battery, reset the
battery sensor by doing the following:
1. Switch the ignition on, and leave the
engine off.
Note: Complete Steps 2 and 3 within 10
seconds.
2. Flash the high beam headlamps five
times, ending with the high beams off.
3. Press and release the brake pedal three
times.
The battery warning lamp flashes three
times to confirm that the reset is
successful.
RECYCLING AND DISPOSING OF
THE 12V BATTERY
Make sure that you dispose of
old batteries in an
environmentally friendly way.
Seek advice from your local authority
about recycling old batteries.
12V BATTERY –
TROUBLESHOOTING
12V BATTERY – WARNING LAMPS
If it illuminates when the green
ready to drive indicator is
activated, this indicates your
vehicle requires service. Have your vehicle
checked as soon as possible.
330
2022 Bronco (TG1) Canada/United States of America, enUSA, Edition date: 202109, First-Printing
Maintenance
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