It is possible for the color of your grid to change even if you have not made modifications to the color from the Grid properties:
This could cause your model elevation and/or section views to have an unusual setup
This change happens after changing the plane switch from View to Work plane at the Select-snap-plane toolbar at the bottom right of your screen as seen on #12 of Getting familiar with the user interface. Many times users change it without noticing it.
To resolve, simply change the option from Work plane back to View plane.
Keep in mind that the color of the grid may not always be red, as someone else in your company could have changed the advanced option XS_GRID_COLOR_FOR_WORK_PLANE. However, the (model) views will still not adhere to traditional elevation or section settings as shown in the images above.
To further understand the Work plane option visit Shift the work plane.