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How to Replace the Key Battery in the 2021 Honda Passport

Model: Honda Passport YF7, YF8 - Years 2019-2026
Part: Key

This guide is for all 2021 Honda Passport owners who want to replace the battery inside the smart key. First, remove the physical emergency key and use a flathead screwdriver to take off the back cover to access the dead battery you intend to replace. Once the back cover is removed, locate the old battery and replace it with a new, compatible one. Finally, reattach the cover and insert the emergency key back inside.

Updated on 29 July 2026 by ScegliAuto

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