[CazuaLLUK]

Hi,

So today I took of my car my OEM 400m rims and the original run flat tyres. I then installed a set of 19" replica 405 rims with non run flat tyres.

I checked pressures at the garage and all was fin, 20 mins in to my drive I got a warning says my right front tyre was flat/losing pressure.

I pulled over and I went in to my vehicle information, I did a tyre pressure check and reset the system and it now says all tyre pressures are fine and all 4 wheels show as green.

I was wonder by taking off my OEM wheels and tyres would this affect the sensor etc and was this why I got a false message.

I have been on 3 drives since and not a single error message/warning at all. Any help would be appreciated.

Thanks in advance.
Liam

[CHCCubs]

Assuming your car uses the FTM system we have here in Canada and not TPMS, then this is normal. I experienced the same thing the first time I put on my winter wheels, reset the system and all was fine. Now every time I do my seasonal wheel changeover I just reset the system before driving the car.

[CazuaLLUK]

Originally Posted by CHCCubs

Assuming your car uses the FTM system we have here in Canada and not TPMS, then this is normal. I experienced the same thing the first time I put on my winter wheels, reset the system and all was fine. Now every time I do my seasonal wheel changeover I just reset the system before driving the car.

Thanks, can you just explain what FTM & TPMS stand for?

[CHCCubs]

The Flat Tire Montoring (FTM) uses the ABS sensors to monitor the tires while the Tire Pressure Monitoring System (TPMS) uses sensors in the wheels to monitor the actual tire pressure.

[CazuaLLUK]

Originally Posted by CHCCubs

The Flat Tire Montoring (FTM) uses the ABS sensors to monitor the tires while the Tire Pressure Monitoring System (TPMS) uses sensors in the wheels to monitor the actual tire pressure.

Thanks, just been on 2 more drives and no issues. Must of been like you, just needed a reset of the system.

[MickAv8r]

pretty sure regardless any time you swap the wheels you have to reset because the sensors are new - the system needs to recalibrate, regardless of ftm or tpms.

[CazuaLLUK]

Originally Posted by MickAv8r

pretty sure regardless any time you swap the wheels you have to reset because the sensors are new - the system needs to recalibrate, regardless of ftm or tpms.

Thanks for your input!

[sickbg]

I have a full square set of 400Ms for sale if interested with factory installed Pirelli's PZERO all season. 60% tread left on them.