KIA Rio_Rio5 2005 - Manual (Page 208)

During tire rotation, check the tires for correct balance.
Check for uneven wear and damage. Abnormal wear is
usually caused by incorrect tire pressure, improper
wheel alignment, an out-of-balance condition, severe
braking or severe cornering. Look for bumps or bulges
in the tread or side of tire. Replace the tire if you find
either of these conditions. Also, replace the tire if you
can see fabric or cord. After rotation, be sure to bring
the front and rear tire pressures to specification and
check lug nut tightness.
Disc brake pads should be inspected for wear
whenever tires are rotated.
Maintenance
7-36
Tire Replacement
If the tire is worn evenly, a tread wear indicator will
appear as a solid band, 12.7 mm wide (1/2 inch) across
the tread. This shows there is less than 1.6 mm (1/16 inch)
of tread remaining on the tire. Replace the tire when
this happens.
Do not wait for this band to appear across the entire
tread before replacing the tire.
✻ ✻
NOTICE
Rotate radial tires that have an asymmetric tread
pattern from front to rear only and not from right
to left.
AS2B07023
Tread wear indicator
New tread Worn tread
RIO ENG CNA 7-2.qxd 7/29/05 5:18 PM Page 36