Key Battery Replacement; Replacing the key battery- Page 469

2021 Mazda Mazda3 Hatchback Owners Manual

Table of Contents

When Driving
Customer Information and Reporting Safety Defects
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Key Battery Replacement

Key Battery Replacement

If the buttons on the transmitter are

inoperable and the operation indicator

light does not 

fl

ash, the battery may be

dead.

Replace with a new battery before the

transmitter becomes unusable.

CAUTION

Make sure the battery is installed

correctly. Battery leakage could occur

if it is not installed correctly.

When replacing the battery, be

careful not to touch any of the

internal circuitry and electrical

terminals, bend the electrical

terminals, or get dirt in the

transmitter as the transmitter could

be damaged.

There is the danger of explosion if

the battery is not correctly replaced.

Dispose of used batteries according

to the following instructions.

Insulate the plus and minus

terminals of the battery using

cellophane or equivalent tape.

Never disassemble.

Never throw the battery into 

fi

re or

water.

Never deform or crush.

Replace only with the same type

battery (CR2032 or equivalent).

The following conditions indicate that

the battery power is low:

A message, “Low Key Fob Battery.

Replace Battery” is displayed on the

multi-information display when the

ignition is switched OFF.

The system does not operate and the

operation indicator light on the

transmitter does not 

fl

ash when the

buttons are pressed.

The system's operational range is

reduced.

Incorrect battery replacement

operation may damage the key.

Replacing the battery at an Authorized

Mazda Dealer is recommended. If

replacing the battery by yourself,

follow the instruction.

Replacing the key battery

1. Remove the lower cover while

pressing the knob in the direction

of the arrow.

Maintenance and Care

Owner Maintenance

6-31

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2020-7-10 17:21:34

Detailed Information for 2021 Mazda Mazda3 Hatchback Owners Manual