
WARNING: This vehicle may have
more than one battery. Removing the
battery cables from only one battery
does not disconnect your vehicle
electrical system. Make sure you
disconnect the battery cables from all
batteries when disconnecting power.
Failure to do so may cause serious
personal injury or property damage. WARNING:
For vehicles with
Auto-Start-Stop the battery requirement
is different. You must replace the battery
with one of exactly the same
specification.
The battery is in the engine compartment.
See
Under Hood Overview (page 258).
Your vehicle has a maintenance-free
battery. It does not require additional
water during service.
If the vehicle battery has a cover and vent
hose, make sure you correctly install it after
cleaning or replacing the battery.
For longer, trouble-free operation, keep the
top of the battery clean and dry and the
battery cables tightly fastened to the
battery terminals. If any corrosion is
present 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.
We recommend that you disconnect the
negative battery cable terminal from the
battery if you plan to store your vehicle for
an extended period.
Note: If you only disconnect the negative
battery cable terminal, make sure it is
isolated or placed away from the battery
terminal to avoid unintended connection or
arcing. If you replace the battery make sure it
matches the electrical requirements of
your vehicle.
If you disconnect or replace the battery
and your vehicle has an automatic
transmission, it must relearn its adaptive
strategy. Because of this, the transmission
may shift firmly when first driven. This is
normal operation while the transmission
fully updates its operation to optimum
shift feel.
Battery Management System
(If
Equipped)
The battery management system monitors
battery conditions and takes actions to
extend battery life. 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 may appear in the information
displays to alert you that battery
protection actions are active. These
messages are only for notification that an
action is taking place, and not intended to
indicate an electrical problem or that the
battery requires replacement.
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.
271
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Maintenance

CLEANING THE WINDOWS AND
WIPER BLADES
Car wash chemicals and environmental
fallout can result in windshield and wiper
blade contamination. Dirty windshield and
wipers will result in poor windshield wiper
operation. Keep the windshield and wiper
blades clean to maintain windshield wiper
performance.
To clean the windshield and wiper blades:
•
Clean the windshield with a
non-abrasive glass cleaner. When
cleaning the interior of the windshield,
avoid getting any glass cleaner on the
instrument panel or door panels. Wipe
any glass cleaner off these surfaces
immediately.
• For windshields contaminated with
tree sap, chemicals, wax or bugs, clean
the entire windshield using steel wool
(no greater than 0000 grade) in a
circular motion and rinse with water.
• Clean the wiper blades with isopropyl
rubbing alcohol or windshield washer
concentrate.
Note: Do not use razor blades or other
sharp objects to clean or remove decals
from the inside of the heated rear window.
The vehicle warranty does not cover
damage caused to the heated rear window
grid lines.
CLEANING THE INTERIOR WARNING: Do not use cleaning
solvents, bleach or dye on the vehicle's
seatbelts, as these actions may weaken
the belt webbing. WARNING:
On vehicles equipped
with seat-mounted airbags, do not use
chemical solvents or strong detergents.
Such products could contaminate the
side airbag system and affect
performance of the side airbag in a crash.
For fabric, carpets, cloth seats and seats
equipped with side airbags:
• Remove dust and loose dirt with a
vacuum cleaner.
• Remove light stains and soil with
Motorcraft Professional Strength
Carpet & Upholstery Cleaner.
• If grease or tar is present on the
material, spot-clean the area first with
Motorcraft Spot and Stain Remover. In
Canada, use Motorcraft Multi-Purpose
Cleaner.
• If a ring forms on the fabric after spot
cleaning, clean the entire area
immediately (but do not oversaturate)
or the ring will set.
• Do not use household cleaning
products or glass cleaners, which can
stain and discolor the fabric and affect
the flame retardant abilities of the seat
materials.
Mirrors
Do not clean the housing or glass of any
mirror with harsh abrasives, fuel or other
petroleum or ammonia-based cleaning
products.
294
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Vehicle Care

CLEANING THE INSTRUMENT
PANEL AND INSTRUMENT
CLUSTER LENS
WARNING: Do not use chemical
solvents or strong detergents when
cleaning the steering wheel or
instrument panel to avoid contamination
of the airbag system.
Note: Follow the same procedure as
cleaning leather seats for cleaning leather
instrument panels and leather interior trim
surfaces. See
Cleaning Leather Seats
(page 295).
Clean the instrument panel and cluster
lens with a clean, damp and soft cloth,
then use a clean, dry and soft cloth to dry
these areas.
• Avoid cleaners or polishes that increase
the gloss of the upper portion of the
instrument panel. The dull finish in this
area helps protect you from
undesirable windshield reflection.
• Do not use any household cleaning
products or glass cleaners as these
may damage the finish of the
instrument panel, interior trim and
cluster lens.
• Wash or wipe your hands clean if you
have been in contact with certain
products such as insect repellent and
suntan lotion to avoid possible damage
to the interior painted surfaces.
• Do not allow air fresheners and hand
sanitizers to spill onto interior surfaces.
If a spill occurs, wipe off immediately.
Your warranty may not cover these
damages.
If a staining liquid like coffee or juice has
been spilled on the instrument panel or on
interior trim surfaces: 1. Wipe up spilled liquid using a clean,
soft cloth as quickly as possible.
2. Use Motorcraft Premium Leather and Vinyl Cleaner or a commercially
available leather cleaning product for
automotive interiors. Test any cleaner
or stain remover on an inconspicuous
area.
3. Alternatively, wipe the surface with a clean, soft cloth and a mild soap and
water solution. Dry the area with a
clean, soft cloth.
4. If necessary, apply more soap and water solution or cleaning product to
a clean, soft cloth and press it onto the
soiled area. Allow this to set at room
temperature for 30 minutes.
5. Remove the soaked cloth, then with a clean, damp cloth, use a rubbing
motion for 60 seconds on the soiled
area.
6. Dry the area with a clean, soft cloth.
CLEANING LEATHER SEATS
(IF
EQUIPPED)
Note: Follow the same procedure as
cleaning leather seats for cleaning leather
instrument panels and leather interior trim
surfaces.
For routine cleaning, wipe the surface with
a soft, damp cloth and a mild soap and
water solution. Dry the area with a clean,
soft cloth.
For cleaning and removing stains such as
dye transfer, use Motorcraft Premium
Leather and Vinyl Cleaner or a
commercially available leather cleaning
product for automotive interiors.
Note: Test any cleaner or stain remover on
an inconspicuous area.
295
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Vehicle Care

Car Wash
See: Cleaning the Exterior............................... 291
See: Cleaning the Exterior - Mach 1.............291
Catalytic Converter.......................................161
On-Board Diagnostics (OBD-II).................... 162
Readiness for Inspection and Maintenance (I/M) Testing.................................................... 162
Center Console..............................................146 Locking Storage Bin........................................... 146
Changing a Bulb
...........................................275
LED Lamps........................................................... 275
Replacing Reverse Lamp Bulbs.................... 275
Changing a Fuse
..........................................254
Fuses...................................................................... 254
Changing a Road Wheel
...........................328
Dissimilar Spare Wheel and Tire Assembly
Information..................................................... 328
Tire Change Procedure.................................... 329
Changing the 12V Battery
.........................270
Battery Management System........................ 271
Remove and Reinstall the Battery...............272
Changing the Engine Air Filter - 2.3L EcoBoost™/5.0L......................................263
Changing the Engine Air Filter - 5.0L, Mach 1
...........................................................262
Changing the Vehicle Wi-Fi Hotspot Name or Password..................................364
Changing the Wiper Blades
.....................274
Checking MyKey System Status...............65
Checking the Wiper Blades
......................274
Child Restraint and Seatbelt Maintenance.................................................46
Child Restraint Positioning..........................37
Child Safety......................................................25 General Information............................................ 25
Cleaning Leather Seats.............................295
Cleaning Products......................................290 Materials............................................................... 290
Cleaning the Convertible Top
.................298
Cleaning the Engine....................................293
Cleaning the Engine - Mach 1..................293
Cleaning the Exterior...................................291 Cleaning the Exterior Lamps......................... 292
Cleaning the Exterior Precautions...............292
Exterior Chrome Parts...................................... 292
Exterior Plastic Parts........................................ 292
Stripes or Graphics............................................ 292
Underbody............................................................ 292Under Hood..........................................................
292
Cleaning the Exterior - Mach 1.................291 Washing Your Vehicle........................................ 291
Cleaning the Instrument Panel and Instrument Cluster Lens........................295
Cleaning the Interior...................................294 Mirrors.................................................................... 294
Cleaning the Wheels..................................296
Cleaning the Windows and Wiper Blades...........................................................294
Clearing All MyKeys.......................................64
Clearing the Garage Door Opener..........143
Climate..............................................................411 Accessing Rear Climate Controls.................413
Accessing the Climate Control Menu...........411
Directing the Airflow........................................... 411
Rear Climate Control Lock Indicator...........413
Setting the Blower Motor Speed...................411
Setting the Temperature.................................. 411
Switching Auto Mode On and Off.................411
Switching Dual Zone Mode On and Off........................................................................\
412
Switching Maximum Air Conditioning On and Off............................................................... 412
Switching Maximum Defrost On and Off........................................................................\
412
Switching Rear Auto Mode On and Off........................................................................\
413
Switching Recirculated Air On and Off........................................................................\
413
Switching the Air Conditioning On and Off ........................................................................\
. 411
Switching the Climate Controlled Seats On and Off............................................................... 412
Switching the Climate Control On and Off........................................................................\
412
Switching the Heated Exterior Mirrors On and Off............................................................... 412
Switching the Heated Rear Window On and Off........................................................................\
412
Switching the Heated Seats On and Off........................................................................\
412
Switching the Heated Steering Wheel On and Off............................................................... 412
Switching the Heated Windshield On and Off........................................................................\
412
Switching the Rear Climate Controlled Seats On and Off........................................... 413
515
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Index