Tires: Service and Repair

TIRE PRESSURE ADJUSTMENT (WITH TPMS)

1. Use of a digital gauge is recommended for accurate measurement of the air pressure.
2. Tire pressure lowers gradually as time passes. Due to this, monthly air pressure inspection is recommended.
3. Perform tire pressure adjustment before driving. (When tires are cold.)
^ Tire pressure will increase after driving because the internal temperature of the tire is high. If tire pressure is adjusted to specifications when the internal temperature of the tire is high, tire pressure will decrease when the internal temperature of the tire decreases to the same level as ambient temperature. If the tire pressure is lower than the lower-limit pressure, the TPMS warning light may illuminate.
^ Even though the air pressure is adjusted to specifications, the indicated air pressure may be higher than the specified value when the internal temperature of the tire is higher than ambient temperature. (Example: Air pressure changes approx. 10 kPa (0.1 kgf/cm2, 1.5 psi) when the temperature changes 10°C (50°F))

Caution:
^ In an area or a season with varying temperatures, tire pressure will change due to ambient temperature change. If the tire pressure is lower than the lower-limit pressure due to low ambient temperature, the TPMS warning light may illuminate. Adjust the pressure when the TPMS warning light illuminates.
^ Do not tilt or use excessive side force when checking air pressure or inflating the tire with air. Which can provide enough leverage to easily bend or break the wheel unit.

^ To prevent damage to the valve area of the wheel unit or pressure loss during air pressure adjustment, use a type B tool with a round end as shown in the figure, not a type A tool.

REPAIR AGENT REMOVAL

Caution:
^ Be careful not to spill the repair agent from inside of the tire.

1. Remove the flat tire from the vehicle, and let the air out of the tire.





2. Remove the wheel unit nut and push the remaining part of the wheel valve into the tire (with TPMS). Cut the tire valve by the root and push the remaining part of the wheel into the tire (without TPMS).





3. Insert the hose through the valve and into the tire. Stand the tire up so that the hose end sinks into the repair agent.
4. Pump out the repair agent.

Note:
^ Place the tire on a higher stand than the pumping bottle. This will make the operation easier.

5. Repeat the pumping procedure, changing the position of the hose end, until there is no repair agent left in the tire.
6. Remove the tire from the wheel and pick the wheel unit pushed in at Step 2 out.
7. Wipe off the repair agent remaining on the wheel, wheel unit and tire.

Note:
^ Dispose of waste repair agent according to local disposal law.
^ The repair agent is composed of the following:
- Deproteinized natural rubber latex
- Emulsified adhesive resin
- Propylene glycol
^ The tire must be replaced with a new one and clean all tire repair agent off to the wheel.
^ Use compressed air to clean out TPMS style valve.