A family of Microsoft word processing software products for creating web, email, and print documents.
If the template was properly formatted, this would be paragraph shading in the heading styles.
Work with a copy.
Select the paragraph with the shading that you do not want.
On the Home tab in the Paragraph Group is a little window icon for borders. Click on it and hold it down. At the bottom should be Borders and Shading.... Click on that, then click on the tab at the top of the dialog box that pops up, for Shading.
Pick "No Shading." Make sure that the Apply to box says "Paragraph."
Then, right-click on the Style being used and update it to match formatting.
I agree with Stefan that if you can give us a link to a document with the problem we could help you more easily.
The following link tells how to do this.
Why a sample file is important for troubleshooting - - - - - - - and how to do it.