July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Removal Procedure

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

Remove the battery. Refer to BATTERY REPLACEMENT .
Remove the battery tray bolts.
Remove the battery tray.

Fig 1: Battery Tray
Courtesy of GENERAL MOTORS CORP.