A steady tire pressure warning light usually means one or more tires are underinflated, while a flashing light often indicates a system malfunction or a sensor issue.
When your tire pressure monitoring system (TPMS) light illuminates, it's important to assess the situation promptly. A steady light suggests you should immediately check your tire inflation levels and add air if necessary. If the light continues to stay on after inflating the tires to the recommended pressure, or if it flashes, it could signal a problem with the TPMS sensors themselves or another component of the system. Driving with underinflated tires can lead to poor handling, increased fuel consumption, and accelerated tire wear. A flashing light, in particular, warrants a closer inspection by a professional to diagnose the specific issue.
This information is for general guidance; always consult your vehicle's owner's manual and a qualified mechanic for specific diagnoses and repairs.
Can a flashing TPMS light mean I have a flat tire?
While a flashing TPMS light primarily signals a system malfunction, it's still wise to perform a quick visual inspection of all your tires. In rare cases, a very rapid pressure loss might trigger a flashing light before it becomes a steady one, or the system might be confused by a severely damaged tire. However, the standard indication for a flat or critically low tire is a steady, illuminated TPMS light. If the light is flashing, the most probable cause is a problem with the TPMS hardware or sensors, and you should seek professional inspection.