Tire Pressure Light On — What It Usually Means

How real visits for a TPMS light ended at independent shops across the US — the part actually replaced, how often, and what it cost when it was the only fix.

TPMS sensor

The single most common outcome — about a third of these visits when combined with the runner-up

TPMS sensor $125 – $764

typical cost when it was the only fix
(parts + labor)

The fix involved	Share of these visits*	Typical cost†	Median
TPMS sensor	35.5%	$125 – $764	$300
Other, rarer causes	smaller shares — sensor batteries, valve stems, slow leaks, the spare tire's sensor	varies	—

*Share of visits whose repair involved this part; combined repairs count toward each part, so shares overlap and don't add to 100%. †Middle half of real invoices when this was the only fix — parts + labor, all vehicle types.

Which one is yours? Listen first

Light in cold weather — Pressure drops about 1 psi per 10°F — the first cold morning of fall lights up dashboards everywhere.
One tire keeps dropping — A tire that needs air weekly has a slow leak — usually a nail or a corroding wheel bead.
Flashing light — A TPMS light that flashes at startup is reporting a sensor fault, not pressure.

What to expect from the shop

A light that stays on after inflating the tires is a sensor problem, usually a dead sensor battery — expect the shop to scan which one. One sensor is cheap; four is a set. If the light flashes at startup, it's the system itself, not a tire. A relearn procedure finishes the job.

About this data · How to use this brief

Vehicles all makes and models, US fleet
Data confidence High — large sample, stable shares
Records through July 2026, refreshed continuously
Source paid invoices from independent US repair shops

Take it to the shop. It tells you what the likely answers are and what each one should cost — so when the diagnosis comes back, you already know whether the number fits. Vehicle-specific price reports for the common fixes are on fixdozer.com.