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How to Replace the Battery in a Honda Civic Car Key?

1 Answers
AaronAnn
08/31/25 2:00am
To replace the battery in a Honda Civic car key, follow these steps: 1. Pull out the mechanical key and locate the battery compartment's latch position. 2. Keep the key facing upwards, use your fingers to pry open the gap between the key halves to open the key. 3. Remove the old battery, replace it with a new one, and reassemble the key by following the steps in reverse. Taking the 2021 Honda Civic as an example, it is a compact car with body dimensions of: length 4517mm, width 1799mm, height 1434mm, and a wheelbase of 2700mm. The 2021 Honda Civic features a MacPherson strut front suspension and a multi-link rear suspension. It is equipped with a 1.5T turbocharged engine, delivering a maximum horsepower of 177PS, maximum power of 130kW, maximum torque of 220Nm, and is paired with a CVT continuously variable transmission.
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