Pic. 1.131. Seat belt release button: 1 - button
Press the button located on the lock (pic. 1.131). If the belt does not retract fully onto the spool, pull the belt out again and check for kinks or twists in the webbing. Then put the belt on the reel, making sure that the strap does not twist.
Note. If the seat belt does not fully retract onto the inertia reel, check the webbing for sharp kinks or twists. If the buckle is OK and the belt still does not retract normally, have the retractable reel and seat belt checked by an Authorized Mazda Dealer.