(_!_) SET light came on?

[alexperkins]

The tyre pressure monitor is your friend

Use it so when your missus has a flat, she notices a light and then phones you

Thats if i was to let the missus drive the car 

[Richn83]

It uses the ABS sensors in the wheel to detect the rolling radius of the wheels in revolutions per minute. If these increase/decrease, it deems there is a lower pressure tyre, thus enabling the sensor - rather clever little system

....Doubtless a silly question, but where are these ABS sensors? They're not actually fitted on the wheel itself (as my TyreSure wireless sensors are).

Its the same ABS sensor used for the braking system robin so they are on the hub area not the wheel, and its nothing like your system, that is a proper system with accurate continually data this is a simple your rotational circumference of one wheel varies from a logged figure something is wrong with one of your wheels warning light.

Rich beat me to the sensor question, its a basic system to comply with laws.

[vRStu]

The combination of the teeth or in the case of the one above, phonic wheel, and the ABS sensor will produce a sinusoidal waveform which is monitored by the ABS controller. If the wheel stops moving, the waveform is disrupted and the controller will assume that the wheel has stopped (locked) and will release the brake of the affected wheel until movement is again detected.

Other things on the car such as the Speedo, Sat Nav and in this case TPM will also use that signal combined with’knowledge’ of the rolling radius of the wheel to produce a speed signal. In the case of the TPM it can determine that if the rolling radius changes that the size of the wheel/tyre assembly has changed and will assume flat tyre.

So in this instance not as accurate as the transmitter system used in your car Robin, and indeed some cars will have sensors attached to the wheel inside the tyre.

[RedRobin]

So in this instance not as accurate as the transmitter system used in your car Robin, and indeed some cars will have sensors attached to the wheel inside the tyre.

....Except that currently one of my TyreSure sensors failed and the replacement they sent me also appears to have failed and I'm expected to pay each time for the refitting which involves tyre off, sensor replaced, tyre on, whole rebalanced - I love the TyreSure system but am not a happy bunny with their UK distributor! They're also charging my supplier for the replacement sensors! 

[vRStu]

That's a shame mate, you were so complimentary of their product before but poor customer service cannot be accepted.

[bodger00]

The tyre pressure monitor is your friend

Use it so when your missus has a flat, she notices a light and then phones you

Thats if i was to let the missus drive the car 

Thats probably a good idea Alex If changing the wheel, she would then have to know how to use a jack..........



or


Improvise


 

[jbc]

I've had this light come on when I've changed tyres. Because it's calculating rolling radius through the ABS sensor to work out if the tyre is flat any sudden change in the radius of your wheel/tyre combo is likely to set it off, such as changing tyres/wheels or if you've got a very heavy right foot and worn the tyres down quickly!!

As long as you know nothing is wrong just press and hold the button to reset - but do this when the tyres are warm and the car is travelling at a reasonable speed so that it can "re-read" the correct rolling radius to compare with in the future.

[RedRobin]

That's a shame mate, you were so complimentary of their product before but poor customer service cannot be accepted.

....I'm still very complimentary about the TyreSure product itself and also the excellent customer service from the retailer Revolution247 in Gateshead (too far away for me to travel to accept their invitation to do the work free of charge up there).. It's the UK distributor I'm very unhappy with - They import all sorts of products and it's just money for boxes on shelves as far as they're concerned. Out of principle I'm going to take this as far as I can and make a lot of noise.