Last week the remote locking on my aging Ford Focus gave up the ghost; the manual locks still worked but the key fob no longer activated, all of which pointed to a simple flat battery in the key fob.
Normally the batteries in the key fob will last several years so it's likely (as in my case) that many Ford owners will not have needed to change the battery - hence a quick pictorial guide as it's not always obvious how it's done.
How to change the battery in a Ford Focus 2002 key fob
Step one: You'll need your key without its keyring (not essential but makes life easier) and a small, flat-bladed screwdriver.
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