How do I know if I have run-flat tires?
Run-flat tires are a type of tire that can continue to function even after a puncture or blowout, allowing you to drive to a safe location for a tire change. Identifying if your vehicle has run-flat tires is important for understanding their capabilities and maintenance requirements. Here's how you can tell if your tires are run-flat.
Inspect the Tire Sidewall
The easiest way to identify run-flat tires is to look for specific markings on the tire sidewall. Run-flat tires will typically have one of the following designations printed on the sidewall:
- RFT - Stands for "run-flat tire"
- ROF - Stands for "reinforced" or "run-on-flat"
- ZP - Stands for "zero pressure"
In addition to these markings, run-flat tires may also have a slightly thicker sidewall compared to standard pneumatic tires.
Check the Vehicle Manufacturer
Many vehicles that come equipped with run-flat tires will have this information clearly stated in the owner's manual or on a placard inside the driver's side door jamb. Some common vehicle models that offer run-flat tires as standard or optional equipment include:
- BMW
- Mercedes-Benz
- Lexus
- Cadillac
- Infiniti
If your vehicle is from one of these manufacturers, there's a good chance it has run-flat tires installed.
Inspect the Tire Pressure Monitoring System (TPMS)
Run-flat tires often require a specialized TPMS that can detect when a tire has lost pressure and alert the driver. If your vehicle's TPMS has a "flat tire" or "low pressure" warning light that illuminates even when the tire appears inflated, this could be an indication that you have run-flat tires.
Knowing whether your vehicle is equipped with run-flat tires is important for proper maintenance and safety. By inspecting the tire sidewall, checking your vehicle manufacturer, and observing the TPMS, you can easily identify if your tires are the run-flat type.
