mine is only that bad because I was in the car for like almost 2 hours with it on, and it dropped from 20mpg average

 

yeah...or at least since the last time it was reset

 

I also do that, that means that the TPMS are not working. When its on constantly that means it needs to be activated or replaced.

When i switch my stock wheels back on the light turns off within a few miles because all of my tpms work. As for my summer wheels the light is always on because the TPMS are out of battery.

I recommend you try the paperclip trick or go to a belle tire and ask them to reset it for you.

 

Why does everyone keep saying that if the light remains on, then your system is malfunctioning???

On my car, if I have a tire with low pressure, the light comes on and remains illuminated steadily (not blinking/flashing) until I air up the tire; that's been normal operation for mine so I don't think it means that the system is broken.

 

^+1, i dont have oem tpms so mine stays on as well

 

inflate your tires and leave the car off while doing so... once you start up your ride it should go away if its just an issue with low air.

 

+1 , mine works perfectly the same way, when my front right tire drops to 18 psi every other day, the tpms is sure to notify me, but when i refill it turns off in less than a mile

 

When my tires developed slow leaks I consistently had this light go on (nearly once a week for several months), and sure enough the tire pressures were low in 2/4 tires. Taking down the tires, removing the rim corrosion and adding sealant prior to remounting tires = light is gone x 3 months.

 

Looks like you pulled that shot while driving down the road and turning, at least you used your turn signal though. Just kidding with ya.

 

Rtmfm!

 

is it bad to drive with the light on?

 

nope since some people dont even have tpms

but if you do have tpms your tires pressure is either high or low depending on the temperature or if you suck at inflating your tires to the proper psi levels

 

^+1
Many of us that put on snow wheels/tires (without monitors) have that light on for 5-6 months. No problems. The light goes out when we put our summer (with monitors) wheels back on.

 

what is the proper tire pressure? my light started flashing then stayed on the other day. tire pressure was around 42 in each tire.

 

It's listed on a sticker on the drivers door jam.
Should be around 33-34psi.
Check them and fill them when the tires are cold.