Guides · How to Check Tire Pressure
TPMS Light Blinking
A blinking TPMS lamp can mean a sensor or system fault. Measure the tires anyway, then follow the owner manual.
Short answer
If the tire pressure light blinks for about a minute and then stays on, many vehicles are reporting a TPMS fault, not only low air. Measure every tire first. A blinking lamp does not prove the tires are safe.
A solid lamp is usually low pressure. A blink-then-solid pattern is often a dead sensor, a sensor that was not relearned after a tire change, or a system that lost communication. The owner manual for that car defines the exact pattern.
Winter wheel swaps and cheap sensors cause a wave of blinking lights. The tires can still be low at the same time. Always gauge before you book a module replacement.
After pressures match the label, some cars need a relearn drive or a reset procedure. If the lamp still blinks, follow the manual. Do not disconnect the battery as a first fix.
Step-by-step
- 1Watch whether the lamp blinks, then stays on.
- 2Measure all tires against the door label.
- 3Inflate or inspect before any reset.
- 4If pressures are correct, follow the manual's sensor or relearn steps.
- 5If a recent wheel change happened, tell the shop before they replace parts.
Common mistakes
Ignoring the tires because it 'must be a sensor' Sensors fail. Tires also go low.
Clearing the light with a scan tool only The fault returns if the cause remains.
Resetting a low tire You hide the warning.
Safety notes
A blinking lamp plus a soft tire is still a pressure emergency. Measure first.
FAQ
How long does a typical blink last? Often about 60 seconds, then solid. Check your manual.
Will the light go out after I fill? Only if low air was the whole problem.