Rear Bumper Reinforcement Removal/Installation

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
Remove the following parts:
1. Rear package tray (See REAR PACKAGE TRAY REMOVAL/INSTALLATION .)
2. Trunk covering (See TRUNK COVERING REMOVAL/INSTALLATION .)
3. Trunk board (See TRUNK BOARD REMOVAL/INSTALLATION (US) .)
4. Trunk end trim (See TRUNK END TRIM REMOVAL/INSTALLATION .)
5. Trunk side upper trim (See TRUNK SIDE UPPER TRIM REMOVAL/INSTALLATION .)
Partially peel back the trunk side trim. (See TRUNK SIDE TRIM REMOVAL/INSTALLATION (US) .)
Remove the following parts:
1. Trunk side insulator (See TRUNK SIDE INSULATOR REMOVAL/INSTALLATION .)
2. Rear combination light (See REAR COMBINATION LIGHT REMOVAL/INSTALLATION .)
3. Rear over fender (See REAR OVER FENDER REMOVAL/INSTALLATION .)
4. Rear splash shield (See SPLASH SHIELD REMOVAL/INSTALLATION .)
5. Rear bumper (See REAR BUMPER REMOVAL/INSTALLATION (US) .)
  CAUTION:
  - Remove the rear bumper reinforcement installation nuts using two people, one person supports the rear bumper reinforcement. If all the rear bumper reinforcement installation nuts are removed without supporting the rear bumper reinforcement, it may fall off and be damaged.
Remove the nuts shown in the illustration.

Fig 1: Rear Bumper Reinforcement Nuts With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Remove the rear bumper reinforcement in the direction of the arrow shown in the illustration.
Install in the reverse order of removal.
Perform the rear side radar sensor aiming adjustment. (with rear side radar sensor) (See FRONT SIDE/REAR SIDE RADAR SENSOR AIMING .)