termite

Just changed tires and wheels using aftermarket TPMS sensors. Car reads them and accurately displays pressure on all four. Reset the system to that pressure and then the madness began. As I drive and the tires heat up, I get a message showing 2 lbs difference between front and back and the soft warning goes off. Reset to the higher pressure and it lasts a few miles then goes off again...can’t figure out what the issue is, as it worked perfectly with the snow tires on that the car came with. Multiple resets have not cured the issue. 35 front and 37 back....suggestions?

Plutoe

Yea get real sensors!!

termite

Very helpful....

belarus27

Sad to agree but you most likely will need new sensors
ive seen this with aftermarket sensors esp. Schrader.

got new ones from MBZ and now all is good.

termite

eBay seller was very helpful and it turns out that once I inflated to the gas door sticker pressure, the problem was solved. I could decrease it after that, but the car had to see the sensors at that pressure to synchronize. Turned out to be a great alternative to OEM.

KEY08

That makes absolutely no sense at all, but if setting to factory psi solved all of your problems with these sensors syncing up then I just learned something new.

termite

Made no sense to me either but it worked immediately...go figure.