Rear Bumper Reinforcement Removal/Installation

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery cable.
Remove the trunk side trim. (See TRUNK SIDE TRIM REMOVAL/INSTALLATION .)
Remove the rear bumper. (See REAR BUMPER REMOVAL/INSTALLATION .)
Remove in the order indicated in the table.

Fig 1: Rear Bumper Reinforcement Removal Sequence (Torque Specs)
Courtesy of MAZDA MOTORS CORP.
Install in the reverse order of removal.