2018 Legacy Tire Pressure Monitoring System

[billcon]

2018 Legacy Premier. Tire Pressure Monitoring System...alarm light on dash illuminated and tire pressure readings are blank. Cannot find any fuse (but not sure if there is one).

 

[bmart]

Are actual tire pressures okay? Perhaps just sensors. They don't last forever.

 

[billcon]

Are actual tire pressures okay? Perhaps just sensors. They don't last forever.

Tire pressures are good, 35 - 36 PSI. I expect you are right about the sensors. I don't know if just one bad sensor will cause what I am seeing...can't tell from the manual.

 

[Dick Foster]

Tire pressures are good, 35 - 36 PSI. I expect you are right about the sensors. I don't know if just one bad sensor will cause what I am seeing...can't tell from the manual.

At that age, it would be wise to simply replace them all. Any tire place can either replace batteries or sensors. Don't forget the spare. Batteries have a limited lifespan, used or not.

 

[billcon]

At that age, it would be wise to simply replace them all. Any tire place can either replace batteries or sensors. Don't forget the spare. Batteries have a limited lifespan, used or not.

I didn't even know the sensors have batteries. Thanks for the response!

 

[Dick Foster]

Yeah they do but most places want to sell you new sensors. The sensor only comes on after a few tire rotations, then powers down when the tire stops rotating. That's how the batteries can last along as they do.

 

[billcon]

Are actual tire pressures okay? Perhaps just sensors. They don't last forever.

Yeah they do but most places want to sell you new sensors. The sensor only comes on after a few tire rotations, then powers down when the tire stops rotating. That's how the batteries can last along as they do.

Great advice! Thanks so much!