Volvo 2007 S80 Owner's Manual page 219

Self supporting run flat tires
Certain models equipped with the Tire Pressure Monitoring System (TPMS) can also be equipped with self supporting
run flat tires.
Tires of this type have specially reinforced sidewalls that make it possible to continue driving in the event of a drop in
inflation pressure. Tires of this type are mounted on special rims.
NOTE
Self supporting run flat tires are only available in conjunction with TPMS.
If a self supporting run flat tire should lose inflation pressure, the yellow TPMS warning symbol (
instrument panel lights up to alert the driver, and a message will be shown in the text window in the instrument panel.
If this occurs, reduce vehicle speed to a maximum of 50 mph (80 km/h). The vehicle can be driven approximately 50
miles (80 km), or somewhat farther if the vehicle is not heavily loaded. The tire should be replaced as soon as
possible.
Hard braking and sudden steering maneuvers should be avoided.
In certain cases, it may be difficult to see which self supporting run flat tire is defective. To determine which tire is
damaged, check the inflation pressure of all four tires.
WARNING
Only specially trained persons should mount self supporting run flat tires.
If self supporting run flat tires are mounted, the vehicle must be equipped with a Tire Pressure Monitoring
System.
After a low pressure warning has been displayed, do not exceed 50 mph (80 km/h).
Avoid severe cornering and hard braking, and minimize the distance traveled before replacing the self supporting
run flat tire.
Self supporting run flat tires cannot be repaired. They must be replaced if damaged or punctured.
226
06 Maintenance and specifications
Wheels and tires
Tire designations
) in the