Will tire pressure light come on if overinflated?
TPMS is an electronic system inside the tire that monitors the air pressure in your tires. If your tires are under- or over-inflated, the TPMS activates a warning light on your dashboard. If you have to change a tire, don’t be alarmed when you see the TPMS light illuminate or flash after you install the spare.
Why does my tire pressure light keep coming on when it’s cold?
It’s not due to air escaping, but rather the air inside the tire condenses, taking up less space when it’s cold. This is temporary, because driving will heat up the tire and increase the tire’s pressure. This is what triggers the sensing transmitters inside your tires to illuminate your TPMS dash light.
When does the low tire pressure light turn off?
The low tire pressure light, also know as the TPMS system, on your car should turn off when you have filled your tires to the proper pressure, or “PSI.” Sometimes, it just doesn’t work though.
Why is my TPMS warning light on my spare tire?
Don’t Forget The Spare. 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 to know if your spare tire is low?
I have a light staying on at the dash. Its the low tire pressure light. I added a little air to all the tires, although none were low. I have about 35psi on them now and the light stays on. I checked the book and its says to check the tires for low air…including the spare tire?? How the hell would it know if the spare is low?
What does the tire pressure light look like?
When the car starts, the TPMS light will normally illuminate for a second or two. This indicator often looks like a tire viewed from the front with an exclamation point inside it. Sometimes it will simply say “TPMS”.