Why is my tire pressure warning light on?
Tires will naturally lose 1-1.5 pounds of pressure each month, so if you haven’t been checking on them regularly, your warning light is probably on for a good reason. If it’s been five months since you last checked your tires, you could be running 7-8 psi below normal.
What does it mean when your TPMS warning light is on?
So check your tires carefully. If your vehicle has a TPMS, it’s probably monitoring the pressure in your spare tire. Therefore, if you get a low tire pressure warning light, and if you’ve checked all four tires that are touching the ground, than you might need to put some air in the spare.
How do I Turn Off the tire pressure light?
On Toyota applications, the reset procedure is fairly straightforward. Turn the key on (engine off), then press and hold the RESET button until the flashing TPMS warning light goes off. Or, if it is not flashing, hold the RESET button until the light flashes three times. Turn the key off.
What does low tire pressure but tires are fine mean?
As a result, this turns on the low tire pressure light but tires are fine, for a while but disappear once the tires are warmed. However, if it doesn’t turn off, measure the pressure of tires.
Can a tire pressure sensor trigger a warning light?
If you have an indirect TPMS system then you’re unlikely to see a light on the dash due to this, assuming of course that the pressure changes in all four tires equally. In the case of a vehicle with a direct TPMS system though, which measures the actual pressure inside your tire, such changes in temperature can very easily trigger a warning light.
Why does my TPMS light say low tire pressure?
So check your tires carefully. If your vehicle has a TPMS, it’s probably monitoring the pressure in your spare tire. Therefore, if you get a low tire pressure warning light, and if you’ve checked all four tires that are touching the ground, than you might need to put some air in the spare. Recommended tire pressure can be very confusing.
What to do when tire pressure light is on?
Turn the key on (engine off), then press and hold the RESET button until the flashing TPMS warning light goes off. Or, if it is not flashing, hold the RESET button until the light flashes three times. Turn the key off. But the relearn procedure is not complete until the vehicle is driven at 19 mph or faster for at least an hour.
How does temperature affect the tire pressure sensor?
In the case of a vehicle with a direct TPMS system though, which measures the actual pressure inside your tire, such changes in temperature can very easily trigger a warning light. A change of 10° F in ambient temperature will affect your tire pressure by about 1 psi.