4-3. Do-it-yourself maintenance
Replace or rotate tires in accordance with maintenance schedules
and treadwear.
■ Checking tires
Check if the treadwear indicators are showing on the tires. Also
check the tires for uneven wear, such as excessive wear on one
side of the tread.
Check the spare tire condition and pressure if not rotated.
New tread
Worn tread
Treadwear indicator
The location of treadwear indicators is shown by a “TWI” or “ ” mark,
etc., molded into the sidewall of each tire.
Replace the tires if the treadwear indicators are showing on a tire.