TPMS Light Reset: Where the Button Is and What to Do
You added air, the tires look fine, and the yellow tire light is still on. Or you went looking for a reset button and cannot find one. These are the questions we hear most about the TPMS light, with plain answers and a note on when a reset is not the fix.
How Do I Reset the Low Tire Pressure Light?
Treat the reset as the last step, not the first.
- Step 1: Check the pressure in all four tires with a gauge, with the tires cold.
- Step 2: Set each tire to the pressure on the sticker in the driver door jamb, not the number molded into the tire sidewall.
- Step 3: Follow the reset procedure in your owner's manual if your car has one. If it does not, drive the car normally for a short while, since many systems clear on their own.
- Step 4: Watch whether the light stays off.
If the light comes back, a reset did not fix anything. A tire that keeps losing air has a leak that needs to be found, and a light that returns with good pressure can point to a sensor or system fault. Resetting a light over a real problem only hides the warning.
What Does Service Tire Monitor System Mean?
On some vehicles this message appears on the dashboard instead of, or along with, the tire light. It generally means the monitoring system itself has a problem, not that a tire is low. Common reasons include a sensor that is not reporting, a sensor that has stopped working, or a fault in the system that reads the sensors. Adding air will not clear it.
Some vehicles also need the system to learn the tire positions after a rotation or a tire change, and your manual says whether yours does. If the message appears right after tire work, mention it when you book.
Is a Solid Light Different From a Flashing One?
Yes. On most vehicles, a solid light means at least one tire is low. A light that flashes for a short time at startup and then stays on usually points to a fault in the system itself. Behavior varies, so your manual is the reference. We cover this in detail, including why the light often comes on during the first cold mornings, in TPMS light: solid vs. flashing and what to do.
When Should I Book a Visit?
Book when any of these is true:
- The light returns: it comes back after you set all four tires to the right pressure.
- Flashing or a message: the light flashes at startup and then stays on, or you see a service tire monitor message.
- One tire keeps losing air: that tire needs to be inspected.
- After tire work: the light came on right after tire work or a rotation.
- A visibly flat tire: do not drive on it.
We offer TPMS service and can check the pressures and the system in the same visit. See TPMS Repair or book online. Ask when you book about anything specific to your vehicle.
Frequently Asked Questions
- Why is my TPMS light still on after I added air? Some systems need a short drive or a reset step before the light goes out. If the light stays on, one of the tires may still be off, a tire may have a slow leak, or the system may have a sensor fault. Check all four tires cold against the door jamb sticker first.
- Can I drive with the TPMS light on? A solid light means at least one tire is low, so check the pressure soon. If a tire looks visibly flat, do not drive on it, because a very low tire can be damaged beyond repair.
- Does the TPMS light come on in cold weather? It can. Air contracts as it cools, so pressure falls when the temperature drops. Our post on the TPMS light on a cold morning explains it.
- Will new tires or a rotation affect the TPMS light? It can on some vehicles, which may need the system to learn the tire positions. Your owner's manual says whether yours does. Ask when you book.
- Does a reset fix a bad TPMS sensor? No. A reset tells the system to start over from the current pressures. It does not repair a leak or replace a failed sensor.
Keep reading
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