Front Seat Back Frame Removal/Installation

WARNING:

Handling a front seat equipped with a side air bag improperly can accidentally operate (deploy) the air bag, which may seriously injure you. Read the service warnings/cautions in the Service Information before handling the front seat (side air bag integrated). (See AIR BAG SYSTEM SERVICE WARNINGS [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .) (See AIR BAG SYSTEM SERVICE CAUTIONS [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)
If the sliding mechanisms on both sides are not locked after assembling the front seat, the front seat will operate accidentally while the vehicle is driven, which could result in serious injury. After assembling the front seat, shake it up and down and verify that the sliding mechanism on the both sides are locked.

CAUTION:

After the front seat has been removed, if the slider lever is operated and the front seat is reinstalled with the left/right slide positions deviated, the adjuster unit could be damaged. After removing a front seat, do not operate the slider lever. (With manual seat)

Courtesy of MAZDA MOTORS CORP.

Verify that there are no malfunctions in the forward/back slide of the seat and in the adjuster unit after installing a front seat.
When performing the procedure with a front seat removed from the vehicle, perform the procedure on a clean cloth so as not to damage or soil the seat.
1. Disconnect the negative battery terminal and wait for 1 min or more. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
2. Remove the following parts:
  1. Head restraint
  2. Front seat (See FRONT SEAT REMOVAL/INSTALLATION .)
  3. Front seat side cover (See FRONT SEAT SIDE COVER REMOVAL/INSTALLATION .)
  4. Front seat back trim (See FRONT SEAT BACK TRIM REMOVAL/INSTALLATION .)
  5. Side air bag module (See SIDE AIR BAG MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)
3. Remove the bolts.
  
  Fig 1: Front Seat Back Frame And Bolts With Torque Specification
  Courtesy of MAZDA MOTORS CORP.
4. Install in the reverse order of removal.
5. When the passenger's seat is replaced with a new one, perform the occupant classification sensor calibration using the M-MDS. (See OCCUPANT CLASSIFICATION SENSOR CALIBRATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)