Hi...2009 Forester Tire Pressure Monitoring System Issues

[Cahvah]

Hi, 

I got my 2009 Forester in April.  Since I got it I have had problems with low tire pressure on 2 tires.  My local mechanic replaced the valves and sensors, and within 40 miles the indicator light started flashing for 30 seconds then going off,  On the  way back to the mechanic it flashed for 30 seconds and stayed on.  He recalibrated everything, rode it for 10 minutes, and said the computer was recognizing the sensors.  On my way home it started flashing and stayed on again.  Every time I start it up now it flashes and stays on or just stays on.  I live in north/central Mass, and the temperature has turned very cold.  Is the temperature the problem?  Any advice will be appreciated.

Thanks!

[golucky66]

When you being it to the shop with the light on, he can pull DTCs from the TPMS module. In which case that would inform him as to why the light keeps coming on.

 

Rarely the module is actually bad, but it is a possibility.

[Cahvah]

When you being it to the shop with the light on, he can pull DTCs from the TPMS module. In which case that would inform him as to why the light keeps coming on.

 

Rarely the module is actually bad, but it is a possibility.

Thanks, golucky66.  It sounds like I might have to bring it to a dealership.  

[golucky66]

It's not a "dealership" thing. Any shop that actually spends the money to keep up to date TPMS tools can investigate the light.

Though I'd imagine the dealership should be able to.

 

Before you spend the money bringing the car to the shop, get a tire pressure gauge and set your tire pressures according to the sticker in your drivers door. This way YOU can verify the light isnt coming on due to low pressure (which is very possible in these 10 degrees or less nights.

[Cahvah]

It's not a "dealership" thing. Any shop that actually spends the money to keep up to date TPMS tools can investigate the light.

Though I'd imagine the dealership should be able to.

 

Before you spend the money bringing the car to the shop, get a tire pressure gauge and set your tire pressures according to the sticker in your drivers door. This way YOU can verify the light isnt coming on due to low pressure (which is very possible in these 10 degrees or less nights.

Thanks again...will do!!!  II've been checking tire pressure regularly with the problem I've had, and will check again.