Tyre pressure sensors recalibrate?

I noticed having bought a decent tyre pressure gauge the tyre pressure sensors in the car are always showing 2 psi more than what's on the gauge. Is this just the normal tolerance or do the TPMS sensors need recalibrating every once in a while?

Previously I was assuming the sensors in the car were correct so set my tyres to what it said. Any thoughts? Anyone else noticed anything?

I wouldn't be too stressed about it, as long as they're consistent in the readings you're getting. I just wish we could change the warning pressure...

S550GTRed5 said:

I noticed having bought a decent tyre pressure gauge the tyre pressure sensors in the car are always showing 2 psi more than what's on the gauge. Is this just the normal tolerance or do the TPMS sensors need recalibrating every once in a while?

Previously I was assuming the sensors in the car were correct so set my tyres to what it said. Any thoughts? Anyone else noticed anything?

Click to expand...

How you see the pressures on the instrument panel?

S550GTRed5 said:

I noticed having bought a decent tyre pressure gauge the tyre pressure sensors in the car are always showing 2 psi more than what's on the gauge. Is this just the normal tolerance or do the TPMS sensors need recalibrating every once in a while?

Previously I was assuming the sensors in the car were correct so set my tyres to what it said. Any thoughts? Anyone else noticed anything?

Click to expand...

How do you see the pressures on the instrument panel?

car said:

How do you see the pressures on the instrument panel?

Click to expand...

Engine Info -> Press up.

Double check it's enabled somewhere in the settings.

w0rt3x said:

Engine Info -> Press up.

Double check it's enabled somewhere in the settings.

Click to expand...

Thx very much. Been trying for a while to see that. I wish we could have all the info on the main panel all the time.:cheers:

Thanks for the replies apologies for not posting sooner Chris. It just looks as though the PSI in the car is just a couple PSI more than what it is, good to know for future type pump ups.

I've just been having issues with one of my rears picked up a puncture had it repaired then it started to leak again. Got it fixed again so probably just a bit paranoid. Not impressed with these pirellis overall but obviously all tyres are susceptible to punctures however

I got a person at the dealership service dept. deflating my tyres and setting them to correct pressures. Keep in mind you will need to reset (calibrate) the sensors straight after the pressure has changed. It was showing +-1 PSI, so pretty accurate, as soon as you re-calibrate it.

w0rt3x said:

Engine Info -> Press up.

Double check it's enabled somewhere in the settings.

Click to expand...

Thanks for the tip; why the heck did they put it under Engine Info !!!!! :doh:

I spend ages looking for how to check tyre pressures. The pathetic owners manual didn't help, other than how to re-set the pressures.

***EDIT: to reset the tyre pressure monitor, on a GT at least, go to the information display through the buttons on the left had side of the wheel.

Push left arrow < to select 'driver assist'

Press 'ok'

Select 'Tyre Monitor'

Push right arrow > (from memory)

Press and HOLD 'OK' until it says complete.

I believe that you should do the re-set when the tyres are cold. w0rt3x might know more.

It is in a breakout box on page 180 of the manual, incorrectly described as how to check the tyre pressures.

Pretty slack of the people responsible for the manual not to run a spell checker over it be before publishing it. I tired of seeing tyre spelt both 'tire' and 'tyre'.

w0rt3x said:

I got a person at the dealership service dept. deflating my tyres and setting them to correct pressures. Keep in mind you will need to reset (calibrate) the sensors straight after the pressure has changed. It was showing +-1 PSI, so pretty accurate, as soon as you re-calibrate it.

Click to expand...

How do you reset?

Thanks for the info, i didn't even know you could reset it by holding down OK. Makes sense though being the same as the fuel reset. I'll give it a go