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Tyre pressure sensors issue

Michael Bunce

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I have just bought a XF on a 67 plate with just 10k on the clock. As it was being delivered the TPMS system fault warning light came on, As the driver was only a few miles short of the 138 mile delivery destination I opted to take the car, the dealer would send a set of 4 new TPMS valves and pay to have them fitted by my local KwikFit, which I did today. All was well until I had driven 8 miles, but then the TPMS light came on again. How can I reset it? According to the vehicle status menu all I can find is two settings: TPMS light load or TPMS heavy load.

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There are a few different ways to reset the TPMS sensor that you can try before heading in for a service appointment at your local authorized service center. Test these methods out below!

  • Drive at or above 50 mph to reset the sensor for 10 minutes. This can cause your sensor to reset the next time you turn on the car.
  • Start with the vehicle off, then turn the key to the “On” position without starting the engine. Locate the tire pressure monitor reset button beneath the steering wheel. Hold the TPMS reset button until the tire pressure light blinks 3 times, then release.
  • Inflate all tires to 3 PSI over the recommended amount, then deflate them completely. Once they’re all deflated, reinflate to the recommended tire pressure. If you are using a spare tire, it may have a sensor as well so be sure to do the same with that one.
  • Turn the vehicle off and disconnect the positive battery cable with a wrench. Turn the car on and honk the horn for about three seconds. This will discharge any power still stored in the vehicle. Then reconnect the battery.

this is from the hand book 

I would also check they have put the correct tyre pressure 

in vehicle info tyre pressure it tells you actual and recommended mine is 3psi down and no warning lights so best get them pumped up 😂 



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Thanks for that, but the issue goes deeper. I found that when my local tyre fitter put in the TPMS sensors there were only rubber valves in the tyres. It seems that the previous owner was aware of a fault that couldn't be cleared by replacing the sensors and had resorted to putting in rubber valves, resetting the system and carefully driving to the dealer at under 30 mph to prevent the system detecting the fault. That's why the fault only showed up when the car was driven down the M6 by the delivery driver. The dealer now promises to do whatever is needed, even if the whole car needs reprogramming.

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The car legally requires TPMS so yes, very much down to the dealer. A case of the dealer being shafted by the seller which is why trade in and retail price have such a gap.

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