Built in tyre pressure monitor on a Fiat

[Al n Val]

Another question

so i’d like to reduce the tyre pressures on my Ducato 2021 build, it has the built in pressure sensor/monitors in each of the 6 wheels and when I do, say 80 psi down to 65psi, I get the dashboard low pressure indicator lights.

Does anyone know how to reset/adjust the pressure sensors so I can run at 65psi or even if it’s possible without the dash board light coming on .

thanks

Al

 

[Happy Jack]

On my travels today I popped into 2 local well respected tyre dealers to discuss this issue.
The first one was adamant that they would not supply van tyres to fit on a camper van, even when I pointed out that the van tyres had a higher load and speed rating. They said it was company policy. I tried saying that I wanted to change to 3 peak snowflake all season tyres which are not available in camper tyres but he wouldn't budge.
The second dealer knew of the problem, but was more sensible. He would supply any tyre I wanted but suggested that I would be daft to scrap new tyres. His suggestion was to run the Michelin Agilis CP tyres at about 55 psi for my weight of PVC, should give reasonable ride and grip. He reckoned they were plain dangerous at 80 psi. His suggestion was to find someone to alter the TPMS, or put up with the warning light and return it to 80 if Fiat needed to look at it for servicing. Or get them to disable it and buy a Tyrepal system to comply with the law.
Lots to consider!

Must admit I don't know much about tpms. Think I don't have it on my 2016 Ducato, running my ordinairy van tyres at 50 front and 55 rear, first clue? When I switch ignition on, the warning light doesn't come on for the few seconds it's supposed to; second clue? Also going to try reducing one tyre pressure to 35 and go for a short low speed run to see what happens.
if no warning, then I havn't got tpms.
Would the warning light come on and is there a message with it on the dash of the tyre pressures are low and does the van need to be moving before the warning will activate.
Reason I'm asking, going from 15" to 16" soon and DON'T want tpms .
However and what I was coming to from my first sentance.
What is tyrepal and what law needs complying with?

 

[PeteandCher]

Must admit I don't know much about tpms. Think I don't have it on my 2016 Ducato, running my ordinairy van tyres at 50 front and 55 rear, first clue? When I switch ignition on, the warning light doesn't come on for the few seconds it's supposed to; second clue? Also going to try reducing one tyre pressure to 35 and go for a short low speed run to see what happens.
if no warning, then I havn't got tpms.
Would the warning light come on and is there a message with it on the dash of the tyre pressures are low and does the van need to be moving before the warning will activate.
Reason I'm asking, going from 15" to 16" soon and DON'T want tpms .
However and what I was coming to from my first sentance.
What is tyrepal and what law needs complying with?

Tyrepal is an aftermarket system which uses sensors on the valves, user configurable. The Fiat system uses sender's in the wheels so tyres have to come off to change batteries!
With regard to law, if it was fitted originally then it must work. Not working is a traffic offence and an MOT fail. Not sure when they started fitting them, but it's definitely on my 2024 Fiat.

 

[Happy Jack]

Tyrepal is an aftermarket system which uses sensors on the valves, user configurable. The Fiat system uses sender's in the wheels so tyres have to come off to change batteries!
With regard to law, if it was fitted originally then it must work. Not working is a traffic offence and an MOT fail. Not sure when they started fitting them, but it's definitely on my 2024 Fiat.

Thanks Pete, does what I describe sound like I will find out whether mine has tpms ?

 

[PeteandCher]

Thanks Pete, does what I describe sound like I will find out whether mine has tpms ?

Your tests sound good, with the latest digital dashboard it displays lots of info on mine but if you can't see a light when ignition on and they all come on to test, I would guess you haven't got it. As a last resort you could use the Homer Simpson approach and put a bit of black tape over the warning light!

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[Happy Jack]

Your tests sound good, with the latest digital dashboard it displays lots of info on mine but if you can't see a light when ignition on and they all come on to test, I would guess you haven't got it. As a last resort you could use the Homer Simpson approach and put a bit of black tape over the warning light!

Sounds good to me.