Problem with Tire sensors on 4Runner?

When "going off," does that mean that you are getting a low tire pressure warning?

Assuming that you verified tire pressure with a good tire pressure gauge, did you also check the spare tire?

Yes, the tire sensor warning light is coming on. Yes, the spare has the correct amount of air also.

To answer your original question, yours is the first post I recall reading regarding a low pressure warning system that uses actual air pressure sensors. Some systems use the ABS speed sesnors that turn on a light if it detects a speed differential due to an underinflated tire.

Were the sensors replaced at a Toyota dealership? After the sensors were replaced, did the system work correctly for a while or did the light come on right away? I assume that the shop that replaced the sensors offers some kind of warranty on the repair so you should be able to bring it back if it is still within the warranty period, which I believe is 12 months/12,000 miles or the balance of the 36 month/36,000 original vehicle warranty, whichever is longer.

I can only think of 6 things that would make the tire pressure warning light come on.

See:

and

also:

I am having this problem as well. 06 4runner, barely 8 months old. low pressure signal went on, i checked the tire and it was low, so i changed out the spare. light went away. few days later, came back on, and i checked all the tires and they are all at 35psi. going to dealer later to check it out.

"Anonomouse" wrote: > Has anyone else had problems with the tire sensors on the 2004 > 4runner? > > Mine keeps going off and i've had them replaced, but it hasn't > solved my > problem.

There is a TSB on an updated Tire Pressure Sensor for 2005 and 2006 Tundras, perhaps the condition is similar to the 4Runner.