See also:

Tire balancing
A tire that is out of balance may affect handling and tire wear. The tires on your Hyundai were balanced before the car was delivered but may need balancing again during the years you own the car. ...

Removal and installation (If Installed)
To remove the headrest, raise it as far as it can go then press the release button (1) while pulling upward (2). To reinstall the headrest, put the headrest poles (3) into the holes while pressin ...

Suspension Mounting Bolts
Check the suspension connections for looseness or damage. Retighten to the specified torque. ...