Tyre pressure light coming on every 2 weeks

[SuzyMcQ]

My 2015 Fiesta ECO Boost has had this problem for 3 years. My garage keeps resetting it but it keeps coming back. It's not the tyres but the sensors, you can't detect which one is faulty so all 4 have to be replaced they cost £25 each. My mechanic was so fed up with having my car in his garage he replaced all of them free of charge. Hooray! It worked. My car has been a pain since I got it, I am going back to Toyota when I can afford another car.

[anon]

There are some posters on here who complain about having to inflate tyres every two or three weeks. TPMS has made them lazy. Tyre pressures are a weekly check item in my world.

[Marky146]

I have exactly the same problem on mine. Fine if I leave it otrr just drive slowly, but on the motorway at speed it will come on after about 50 miles. rear offside down to 18psi. Centrifugal force must be pulling the valve over and letting it out.

I'm going to get the wheels refurbed this winter and have a new set of TMPS valves to go on ready. Should sort my problems for next Summer.  

 

[unofix]

4 hours ago, SuzyMcQ said:

you can't detect which one is faulty

Don't understand why not. With the Forscan software it will tell you which sensor is giving the alarm.

[Marky146]

If they've been trained properly then the car will tell you which is the problem. Mine did.