Tire Pressure Monitoring System (TPMS) Warning Light

Service Soon

What it generally indicates

Indicates one or more tires are significantly under-inflated. On most vehicles, if the light flashes for about a minute at startup and then stays on, it's signalling a fault in the TPMS system itself rather than low pressure.

Possible causes

A puncture or slow leak, a drop in outside temperature (which lowers tire pressure), or — for a system fault — a failing TPMS sensor or sensor battery.

Whether continued driving may be risky

Driving on a significantly under-inflated tire increases the risk of a blowout and affects handling and fuel economy. Check tire pressures as soon as safely possible.

What a technician may inspect

Check all tire pressures with a gauge, ideally when the tires are cold, against the values on the tire placard (usually on the driver's doorjamb) — not the maximum printed on the tire itself. Check the spare too if it has a sensor. If a tire keeps losing pressure, have it inspected for a puncture.

Related vehicle systems

Suspension

This is general guidance, not a diagnosis — your owner's manual is the final word for your specific model, and a qualified technician should confirm the actual cause.