The rear armrest in the center of the rear seatback can be used (no occupant in the center seat) or placed upright.

WARNING
Never put your hands and fingers around the moving parts of the seat and armrest:
Putting your hands and fingers around the moving parts of the seat and armrest is dangerous as they could get injured.
Split Folding
Head RestraintsMazda 6 Owners Manual: Wheel hub bolt replacement
1. Remove the hub bolt using the SSTs.
Note
If the dust cover interferes with the wheel hub bolt and the wheel
hub bolt cannot be removed, tap the part shown in the figure with a chisel
lightly and bend the processing point back to the steering knuckle side.
2. Install the hub bolt i ...
Mazda 6 Owners Manual: General procedures
PRECAUTION (FRONT AND REAR AXLE)
Wheel and Tire Removal/Installation
1. The removal and installation procedures for the wheels and tires are not
mentioned in this section. When a wheel is removed, tighten it to 88-118 N·m
{9.0-12.0 kgf·m, 65.0-87.0 ft·lbf}
Brake Line Disconnection/Connecti ...