How to auto-open the product description accordion tab in Dawn theme?

Store Design
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Topic summary

A user seeks code to automatically expand the product description accordion tab on their Shopify Dawn theme product pages. Currently, the accordion remains closed by default, but they want it open by default.

Key Details:

  • The accordion contains product description content from block settings
  • They’ve replaced liquid code in the main-product template
  • A product page URL and screenshot were provided to illustrate the current closed state

Status: The question remains unanswered with no solutions or code snippets provided yet.

Summarized with AI on November 10. AI used: claude-sonnet-4-5-20250929.
1

https://milkymotorsports.com/products/mpimpi-do-h60-vgj-g

Can someone please advise the code needed to auto-open the product description accordion tab on my product pages? I want the tab to be opened by default, currently it’s closed by default.

Be aware that on main-product.liquid I replaced:

block.settings.content with product.description

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wo_0-1712635580287.png
wo_0-1712635580287.png726×218 13.3 KB

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