Not Reusing Rear Window Glass

WARNING: This page is about a different car, the 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

For the areas of the sealant that are difficult to cut, use the SST (piano wire) and follow the procedure under "Reusing Glass."

Use the tool like that shown in the figure, and insert the blade into the sealant.
Pull through the sealant around the edge of the glass.
Remove the rear window glass.

Fig 1: Removing Sealant Around Edge Of Glass
Courtesy of MAZDA MOTORS CORP.