1. Verify that the joint shaft is not twisted or cracked.
2. Turn the joint shaft by hand and verify that the bearing rotates smoothly and freely.
Mazda 6 Service Manual: Height Adjustment
Adjust the head restraint so that the center is even with the top of the passenger's
ears.
To raise a head restraint, pull it up to the desired position.
To lower the head restraint, press the stopcatch release, then push the head
restraint down.
Front outboard seat
Rear outboard seat
...
Mazda 6 Service Manual: Rearview Mirror
WARNING
Do not stack cargo or objects higher than the seatbacks: Cargo stacked
higher than the seatbacks is dangerous. It can block your view in the rearview mirror,
which might cause you to hit another car when changing lanes.
Rearview mirror adjustment
Before driving, adjust the rearview mi ...