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Thanks for popping by the forums @Jim0! You can use the option "Shutdown" on your Surge settings or you can charge your Surge while driving. That will help you to avoid your tracker detects extra steps while driving. And in case, you do get some steps, you can delete them by adding a "Driving" activity on your Dashboard.
Hope this helps, keep enjoying the Forums you're always welcome! 
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Community Moderator Alumni are previous members of the Moderation Team, which ensures conversations are friendly, factual, and on-topic. Moderators are here to answer questions, escalate bugs, and make sure your voice is heard by the larger Fitbit team. Learn more
Hope you’re having a great day @Jim0. Hope this works for you! 
I encourage your to take a moment to visit our Discussions board where you will find other members sharing their experiences and tips. This is a really good way to stay motivated towards your goals
Let me know if you need anything else!
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