The warning-light for TPM Tyre Pressure Monitor came on yesterday while driving on the motorway, and the message "Please check tyres" could be seen in the Maxidot.

However, the tyre pressure is perfect in all wheels, and the sign/warning will not come off (lights up every time the egnition is turned on).

Guess I will have to take the car to the local dealer tomorrow - but, does anybody have any idea what this could be?

Any ideas anyone?

Have you reset the system - press and hold the TPM button. About 3 secs.

Have you reset the system - press and hold the TPM button. About 3 secs.

+1, you need to reset it.

+ another one, it will then go out. The instructions are in the manual if the press and hold does not work.

Cold tyres, ignition on (engine off!), hold the tyre pressure button for 3sec and then you're good to go

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Bad case of flatulence.

Phil

Cold tyres, ignition on (engine off!), hold the tyre pressure button for 3sec and then you're good to go

First off I have not read the book but here is what I did and why and I did it. I rotated the wheels and the light came on so while driving I pressed and held the button until a chime sounded, remember I had not read the book and still haven't. The reason I did it that way was because it depends on reading the rolling diameter of the tyres and it can't possibly do that while it is standing still, makes sense to me. Now I must read the book and see what I was supposed to do.

First off I have not read the book but here is what I did and why and I did it. I rotated the wheels and the light came on so while driving I pressed and held the button until a chime sounded, remember I had not read the book and still haven't. The reason I did it that way was because it depends on reading the rolling diameter of the tyres and it can't possibly do that while it is standing still, makes sense to me. Now I must read the book and see what I was supposed to do.

If you read the book, you will see you should do as I suggested. ;-)

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Now I must read the book and see what I was supposed to do.

As SWMBO would say, why on earth are they called MANuals?!

Reset. Can't be done on the move. I have had the warning go off 3 times in the past year. Once was with a heavily laden caravan on tow which understandibly threw up and error. (Stop, check pressaures and reset system). The other two times I had a nail in a tyre!! I am very impressed with the system so far.

Didn't even know I had TPM in my Elegance. Had the car for 9 months, sadly hit many potholes, never checked my tyre pressures, and no warning yet. I assume all is well then. Definitely time to read the manual though, sure there are other gadgets I'm missing..

Not having a poke at anybody so please don't anyone take offence as it's a general comment, but I find this quite bizarre, not reading operation manuals and not checking stuff.

I have had people who have almost been boastful that the first time the bonnet was lifted or tyres & lights checked on their new company car was when it went in for first service after 15 or 18 thousand miles.

Having said all that, we had a factory demo to our fleet from a VAG group company, not Skoda name might have begun with A. This was a 60 thousand pound vehicle, limited 155mph top speed that had the TPM showing a problem. About 3 or 4 people drove it, all religiously not reading the manual, all trying and failing to reset it.

When I got the keys, first thing was to actually check the pressures, 3 tyres way up too high at 42, one just a tad over 20 vs required 32.

Our guys are all supposed to be qualified @ Advanced level 1/2 btw.

:just... gives... up...:

Not having a poke at anybody so please don't anyone take offence as it's a general comment, but I find this quite bizarre, not reading operation manuals and not checking stuff.

First off I am not offended and I did not read the book as I mentioned. Now I might explain why I did it, the tyre pressure monitor does not read pressure it measures what is called tyre roll out, the length that the tyre rolls out in one complete revolution and uses the abs speed sensors to do it. We tried to reset it at standstill or rather my technician son did and it failed twice after the wheels were rotated so I reasoned that as it measures tyre roll out the tyre should be rolling to be measured, that sounds sensible doesn't it?

It has not faulted since so I wonder why that would be if I did the wrong thing? How on earth can tyre roll out be measured if the vehicle is not moving? It can't be, simple as that. All I can think of is of it is set at standstill then the measurement must take place during the next time it is driven, it appears to have been successful with no further faults so I won't worry about it until it comes on again.

that sounds sensible doesn't it?

Yep it does.

My logic on this is that it must measure if the wheel speeds vary from wheel to wheel as measured by the sensors. It has to be very sensitive as a few psi down doesn't affect the rolling radius that much.

However these must vary all the time, going round corners and what have you. Presumably the system is able to differentiate between going round corners and driving straight, getting wheel spin, direction of steering, God only knows what else.

I assume, and the emphasis on the ass there is aimed firmly and squarely at myself in this, that the reset just zeroes everything, and then starts to build up data again from scratch, and that doing it when moving might just not set an accurate enough zero to detremine if one wheel is consistently out, if that makes any sense at all.

But I agree with your basic point, you try one thing and if it doesn't work, you try something else.

Which brings up something else that irritates the life out of me. Have mentioned above we get manufacturer demos onto the fleet. Amazing how many come without any manual included. Considering that they are effectively trying to get us to buy or lease quite a few vehicles there may be questions arising that could be answered by a squint in the book. The cynic in me thinks that this might stop them having further excuses to pick our brains and opinions.

Cars are just getting too complicated aren't they? Ok I'm not wanting to go back to the days of 500 mile service intervals, 1959 Minis for example, or reliability where before you went on your 3 hour drive to annual holiday the car had a full service beforehand whether one was due or not, and a sigh of relief was breathed when you got there, but things are getting too complicated for my comfort zone.

Apologies, I'll now get out of grumpy old fart mode.

Yep it does.

My logic on this is that it must measure if the wheel speeds vary from wheel to wheel as measured by the sensors. It has to be very sensitive as a few psi down doesn't affect the rolling radius that much.

Apologies, I'll now get out of grumpy old fart mode.

Dear Grumpy Old Fart,

Yes they are getting complicated and us grumpy old farts have to stick together . The only comment I can make to that is I like my toys and unfortunately toys tend to add complication. Now back to the subject of tyre pressure monitoring, each wheel has a sensor so is measured individually and the tyre roll out going around corners cannot vary as the case of the tyre cannot vary in length (diameter). I know at face value you would think a tyre carcass might change diameter but think about it a bit more and it is obvious that the length of roll out can't change to any substantial degree if at all. This fact is the very reason for the way I did it but I suspect you may be right in the fact that the system learns I am just puzzled why I could not stop it faulting. I think both methods work, Skoda just does not want the driver distracted while driving.

t works. Don't ignore it or you will regret it. I did, it cost me.

I was advised to check tyre pressures regularly (at least monthly ) and reset after each check, even if pressures OK. Has not gone on my car but my other half has a Polo with the same system. It went off after car had been standing for two weeks as we were away. Had a nail in tyre but had not fully deflated, so saved the cost of new tyre as it was in the centre of the tread and could be repaired

edited for spelling!

Edited 4 January, 201412 yr by Bristolf2b

I have had this happen a few times, after tyre fitment etc

 

Reset worked every time, stationary, press once, press then hold till light goes out

 

maybe i was lucky

 

john