Get Maintenance -> Changing the 12V Battery Guide for Ford Focus 4 Door Third generation(2010-2017)

Maintenance

Your vehicle has a Motorcraft®

WASHER FLUID CHECK

maintenance-free battery which normally

does not require additional water during

its life of service.

When adding fluid, use a mixture of washer

fluid and water to help prevent freezing in

cold weather and improve the cleaning

capability. For information on fluid dilution,

refer to the product instructions.

Note: If your vehicle's battery has a cover

or shield, make sure it is reinstalled after the

battery has been cleaned or replaced.

Note: The reservoir supplies the front and

Note: See an authorized dealer for low

voltage battery access, testing, or

replacement.

rear washer systems.

CHANGING THE 12V BATTERY

When a low voltage battery replacement

is necessary, see an authorized dealer to

replace the low voltage battery with a Ford

recommended replacement low voltage

battery that matches the electrical

requirements of the vehicle.

WARNINGS

Batteries normally produce explosive

gases which can cause personal

injury. Therefore, do not allow

flames, sparks or lighted substances to

come near the battery. When working near

the battery, always shield your face and

protect your eyes. Always provide correct

ventilation.

To ensure proper operation of the battery

management system (BMS), do not allow

a technician to connect any electrical

device ground connection directly to the

low voltage battery negative post. A

connection at the low voltage battery

negative post can cause inaccurate

When lifting a plastic-cased battery,

excessive pressure on the end walls

could cause acid to flow through the

vent caps, resulting in personal injury and

damage to the vehicle or battery. Lift the

battery with a battery carrier or with your

hands on opposite corners.

Keep batteries out of reach of

children. Batteries contain sulfuric

acid. Avoid contact with skin, eyes or

clothing. Shield your eyes when working

near the battery to protect against possible

splashing of acid solution. In case of acid

contact with skin or eyes, flush

measurements of the battery condition

and potential incorrect system operation.

Note: If a person adds electrical or

electronic accessories or components to the

vehicle, the accessories or components may

adversely affect the low voltage battery

performance and durability and may also

affect the performance of other electrical

systems in the vehicle.

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.

immediately with water for a minimum of

15 minutes and get prompt medical

attention. If acid is swallowed, call a

physician immediately.

Battery posts, terminals and related

accessories contain lead and lead

compounds. Wash hands after

handling.

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Focus (CDH) Canada/United States of America, HM5J 19A321 AA enUSA, Edition date: 201608, First Printing

Maintenance

When a battery replacement is required,

9. Drive the vehicle at least 12 mi (20 km)

to completely relearn the idle and fuel

trim strategy.

Note: If you do not allow the engine to

relearn the idle and fuel trim strategy, the

idle quality of your vehicle may be adversely

affected until the engine computer

eventually relearns the idle trim and fuel

trim strategy.

Make sure that you dispose of old batteries

in an environmentally friendly way. Seek

advice from your local authority about

recycling old batteries.

the battery should only be replaced with

a Ford recommended replacement battery

that matches the electrical requirements

of the vehicle.

Because your vehicle’s engine is

electronically-controlled by a computer,

some engine control settings are

maintained by power from the low voltage

battery. Some engine computer settings,

like the idle trim and fuel trim strategy,

optimize the driveability and performance

of the engine. Some other computer

settings, like the clock and radio station

presets, are also maintained in memory by

power from the low voltage battery. When

a technician disconnects and connects the

low voltage battery, these settings are

erased. Complete the following procedure

in order to restore the settings:

CHECKING THE WIPER

BLADES

1. With the vehicle at a complete stop,

set the parking brake.

2. Shift into park (P).

3. Switch off all accessories.

4. Fully press the brake pedal and start

the vehicle.

E142463

5. Run the engine until it reaches normal

operating temperature. While the

engine is warming up, complete the

following: Reset the clock. See Audio

System (page 282). Reset the power

windows bounce-back feature. See

Windows and Mirrors (page 81).

Reset the radio station presets. See

Audio System (page 282).

6. Allow the engine to idle for at least one

minute. If the engine turns off, press

the accelerator pedal to start the

engine.

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.

CHANGINGTHEFRONTWIPER

BLADES

Note: If streaks or smears appear on the

windshield, clean the windshield and the

wiper blades. If that does not resolve the

issue, install new wiper blades.

7. While the engine is running, press the

brake pedal and shift into neutral (N).

8. Allow the engine to run for at least one

minute by pressing on the accelerator

pedal.

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Focus (CDH) Canada/United States of America, HM5J 19A321 AA enUSA, Edition date: 201608, First Printing

Maintenance -> Changing the 12V Battery for Your Ford Focus 4 Door Third generation(2010-2017)

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