How Soon Do I Need to Fill My Tires if My TPMS Warning Light Turns on?

If the TPMS warning turns on, you should safely pull off the road and check your tire pressure. If possible, take your vehicle to the closest air station and fill your tires to factory specifications. Try to limit your driving as much as possible until you can find a place to pump air into your tires. Remember, the tire pressure warning light turns on if one or more of your tires are underinflated by 25% or more. Driving on underinflated tires is not only dangerous, but can increase the tread wear on your tires, and reduce your vehicle's fuel economy.