Tyre Pressure Monitor

[gh2]

Hi guys,

On my way home tonight my TPM light came on. I pulled over and there it wasn't obvious which tyre was triggering the light.

So I drove to Tesco (luckly the next junction) to check the pressures and only one tyre was 1 PSI out so decided to drive home carefully. At home now, all tyres look ok.

Do you think I should reset the system and put it down to an over enthusiastic sensor or leave it as it is and take it to the garage?

Cheers
G

 

[matthab]

Mine did this when I hit a rather large pot hole. Checked it all and no issues, just reset it and carried on.

It did go off a couple more times which i then discovered a nail in one Tyre.

 

[LJA]

Yes, I'd check all the tyres make sure they're the correct pressure which you did,
Then hold the button down to reset. If it keep coming on, it would appear to be a faulty sensor.

 

[DEAN0]

Just for information - the tyre pressure monitor does not monitor actual tyre pressure.

It uses the ABS sensors to measure wheel speed.

If a wheel starts turning faster than the others it assumes the pressure has gone down and puts the tyre pressure light on.

Keep an eye on the tyre pressures for a day or two and reset the system when yr happy the tyres are all ok.

 

[gh2]

Thanks guys, I'll have another look in the morning. If all the tyres look ok, I'll reset the system and put it down as a blip!

 

[LJA]

Mine was set off on a rough patch of the A1 near that power station

 

[Jay1990]

Also doing max of car for x amount of miles will set it off(thinking higher pressure aswell as lower pressure).... So Ihear...

Jay

 

[gh2]

Thanks everyone. I left the car overnight and all the tyres looked fine in the morning, so I reset the system.

 

[Matt17121991]

Thanks everyone. I left the car overnight and all the tyres looked fine in the morning, so I reset the system.

How do you reset the system? My light is on too

 

[LJA]

Put correct pressure in then hold down the Tyre monitor button for like 10 seconds and it'll disappear!

 

[Matt17121991]

Mine could be a different light then? Where is this light? lol

 

[LJA]

It's the (!) yellow light with a zig zag under the exclamation mark! The button is next to the ESP button to reset it and the light is on the dials

 

[Matt17121991]

That's the light I have so it is that! I cant see a button next to the ESP though unless i'm being blind/stupid or both!

 

[DEAN0]

Put correct pressure in then hold down the Tyre monitor button for like 10 seconds and it'll disappear!

I was told that this should be done when driving on a straight piece of road - not when stationary.

 

[LJA]

Mate this was serious dedication going out in the rain for this!

The SET button next to ESP

 

[matthab]

The system should reset when stationary when both tyres have match pressure. Holding the button for 10 seconds should do it, you will hear a bong after.

When my tyre was so low, I tried resetting it and refused too. It wasnt till I added some air it went out. I then discovered the nail.

 

[DEAN0]

The system should reset when stationary when both tyres have match pressure. Holding the button for 10 seconds should do it, you will hear a bong after.

When my tyre was so low, I tried resetting it and refused too. It wasnt till I added some air it went out. I then discovered the nail.

I can't see how a system that has no pressure sensors in the wheels can detect low pressure when it is not moving.

 

[gh2]

Resetting the system when it is stationary presumably just clears the memory. It will sense incorrect pressure again once you start driving.

 

[Biker]

I agree with Deano, the system uses the ABS sensors so the car must have to be in motion before you can reset the system.

 

[Matt17121991]

Mate this was serious dedication going out in the rain for this!

The SET button next to ESP

Thank you!! haha I'll look after work