Self-supporting run flat tires (SST)
Self-supporting run flat tires are available as optional equipment on certain models.
The vehicle must be equipped with one of the tire pressure monitoring systems if tires of this type are installed.
Tires of this type have specially reinforced sidewalls that make it possible to continue driving to a limited extent even though the tire has lost some or all of its inflation pressure. These tires are mounted on special rims (normal tires can also be mounted on these rims).
If an SST tire loses inflation pressure, the yellow TPMS symbol illuminates in the instrument panel and a text message is also displayed. If this happens, reduce speed to not more than 50 mph (80 km/h). The tire should be replaced as soon as possible.
Warning
- SST tires should only be mounted by service technicians who are familiar with tires of this type.
- SST tires may only be mounted on vehicles equipped with a tire pressure monitoring system.
- Do not drive faster than 50 mph (80 km/h) if the monitoring system indicates that a tire has lost inflation pressure.
- Do not drive farther than 50 miles (80 km) before replacing a damaged SST tire.
- Drive carefully and avoid e.g., hard braking or fast turns.
- SST tires must be replaced if they are damaged. A tire of this type cannot be repaired.