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What might be the reason for a malfunctioning Toyota Highlander keyless entry system?
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★ Top Answer
The most common reason why the keyless entry is not working on a Toyota Highlander is likely due to a dead battery in the key fob. Before jumping to conclusions, it's a good idea to check if the issue is with the remote itself or something else. If another key fob works, then it's probably just a matter of replacing the battery in the remote. You can find a suitable 3-volt lithium battery for most Highlander models at a reasonable cost, rather than needing to purchase a new key fob.
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An issue with a Toyota Highlander keyless entry not functioning could be a sign of a problem with the remote, such as damaged battery connections.
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