GM Service Manual Online
For 1990-2009 cars only

Optional Extended Mobility Tires (EMT) are capable of operating for limited distances at very low or zero tire inflation. Because of this capability, the Tire Pressure Monitoring System (TPMS) is standard with extended mobility tires. Check the inflation of the tires if the LOW/FLAT TIRE warning light is ON. Inspect the affected tire for possible repair or replacement if any of the following occurs:

    • Inspect the affected tire if the LOW/FLAT TIRE warning light reappears.
    • Inspect the affected tire if an EMT has been operated at a pressure significantly below 172 kPa (25 psi).

It is recommended that repair or replacement of extended mobility tires be made only by an authorized tire dealer. Extended mobility tires are designed to be used only with original equipment 17 inch wheel equipped with the low tire pressure warning system.