Subaru TPMS Light Service 

TPMS Light Overview

Ignoring the TPMS warning light is somewhat akin to playing Russian Roulette. Some people gamble that since the temperature had dipped a bit lower than usual the night before, the fact that the TPMS icon is staying illuminated after starting the car is simply a matter of the tire's air contracting due to the cooler temps. So they resolve to refill it to its correct air pressure the next time they happen to be passing a gas station that has an air pump. This might very well be the case, especially if you have not checked your tires since spring since tires tend to lose a pound or two of air per 10-degree drop in temperature. That means your tires were probably on the cusp of being low enough on-air to activate the Tire Pressure Monitoring System (TPMS), and thus the illuminated yellow icon.  And since this is often the case in Topeka, Manhattan, and Junction, KS, the driver wins. But if it's signaling that the tire leaks, they lose. Which camp would you fall into?

How the Tire Pressure Monitoring System Works

There are two types of TPMS, direct and indirect.

  • If your vehicle has a direct system, it has a sensor located in the wheels that measure each tire's air pressure. If that pressure should fall below twenty-five percent of the tire's recommended air pressure, it will trigger the monitoring system, which, in turn, will cause the warning light on the dashboard to come on.
  • If your vehicle has an indirect system, it works a bit differently. It depends on the anti-locking brake system (ABS) to monitor each tire's speed, and if the speed of one is different than the others, it will trigger the TPMS, and the light will come on.

What to Do if Your TPMS Remains On

Whether direct or indirect, you will know that at least one tire needs air, but you won't know which. For this reason, you should always carry a tire gauge in your vehicle so you can measure all the tires and find out which it is. You may even discover that all four tires need air. It's also crucial that you know the manufacturer's recommended pressure for each of your tires. 

If you own a Subaru, you can look it up in your Subaru Owner's Manual, or you can ask the service manager at Briggs Subaru of Topeka next time you bring your vehicle in for a service. And you may need to write it down because if you're a regular customer, you won't be needing it soon. One of our certified technicians will keep your tires inflated to the recommended level as part of each maintenance service.

Schedule Service

Briggs Subaru of Topeka

3115 S Kansas Ave
Directions Topeka, KS 66611

  • Sales: (785) 246-7610
  • Service: (855) 997-8249
  • Parts: (785) 267-2390

Service Hours

  • Monday 7:00am - 6:00pm
  • Tuesday 7:00am - 6:00pm
  • Wednesday 7:00am - 6:00pm
  • Thursday 7:00am - 6:00pm
  • Friday 7:00am - 6:00pm
  • Saturday 8:00am - 4:00pm
  • Sunday Closed
Briggs Subaru of Topeka, KS