Tyres checked the previous evening with an accurate gauge.

Bowling down the M5, just passing  some slow heavies when

BING! the tyre pressure loss warning sounds.

The outfit is still as steady as a rock, I aim for the Portbury

Services, and find a space.

I run my hands over the tyres, inside tyre walls as well, move

the car forward and check again nothing obvious I check the

tyre pressures again (values differ due to being hot) all show

equal pressure. I check the caravan pressures as well while

I'm about it. Set off again, no further warnings but despite Reset

the warning light remains steadily on no flashing just a steady

light.

What a crap system, it cannot even tell you which tyre is faulty.

When you checked the pressures the day before, did you inflate or deflate any? If so, did you reset the TPMS? If not, then it detected a change in pressures from previous (generated by yourself) and warned you accordingly.

Set off again, no further warnings but despite Reset

the warning light remains steadily on no flashing just a steady

light.

What a crap system, it cannot even tell you which tyre is faulty.

If reset correctly the system has a fault, if you did have tyre damage any warning of that especially towing could be a lifesaver as todays cars do not show the early indications of a deflating tyre like cars of the past.

todays cars do not show the early indications of a deflating tyre like cars of the past.

 

My Tiguan would show which individual tyre has a problem.

 

What a crap system, it cannot even tell you which tyre is faulty.

 

I'm suprised it doesn't show which wheel is at fault.

 

My Vrs shows a picture of the car on the Radio and the offending wheel is highlighted in Red  ( Bolero Radio )

Good that you get a warning of possibly not having reset the TPMS after changing / adjusting tyres /pressures.

or a warning of a Faulty System, sensors on the car if the tyres are all correct.

Nothing altered as tyre pressures had remained unchanged since the last outing,

as had the caravan pressures, close to 200 miles.

 

The book says there would be a flashing light if the system was faulty, all I can think

is that one tyre temp. rose more quickly?

Lovely tyres fitted on the new car Goodyear Efficient Grip 2000+ miles

The system must be very sensitive but it would be nice if it indicated which

tyre was at fault.

Before returning home I increased the tyre pressures and Reset the system

then did around 100 miles solo car touring, no problems.

Edited 20 August, 20169 yr by gumdrop

Regarding the constant on warning light, could it be possible you pressed the button long enough to silence the alarm but not long enough to reset the system?

I imagine many owners would be mystified by the TPMS alerts.

Regarding the constant on warning light, could it be possible you pressed the button long enough to silence the alarm but not long enough to reset the system?

 

I do it every time if I have adjusted pressures, the alarm sounded just the once,

and the reset was read out to me by the Lioness, so was followed to the letter.

 

TPMS if it had a proper pictogram with each wheel and status displayed there

would be no room for doubt! I wish I had the full function unit

Edited 20 August, 20169 yr by gumdrop

I had a warning when one of the rear calipers was sticking slightly as the increase in temperature triggered the tpms off

I have a Tyre-Pal system fitted to my Yeti and caravan. This works well most of the time. The only problem is that the alarm goes off for the caravan when it is not on the back of the car(50 miles away) .It actually shows me low pressure on the N/S van tyre. I am waiting for Tyre-Pal to get back to me.

I can live with a kph digital speedo, but if my new Yeti tells me there's an issue with my 'tire' pressures I am going to be seriously displeased. Please, someone tell me it ain't so....

I can live with a kph digital speedo, but if my new Yeti tells me there's an issue with my 'tire' pressures I am going to be seriously displeased. Please, someone tell me it ain't so....

Why?

If the tyre pressure monitor is reset after pumping up tyres there should be no problem except the warning of an imminent loss of pressure.

Why?

If the tyre pressure monitor is reset after pumping up tyres there should be no problem except the warning of an imminent loss of pressure.

Happy for it to tell me about a loss of *tyre* pressure, just not a loss of *tire* pressure! There are limits you know!!

I've had probably a dozen spoof TPM alerts on TIBET III and one genuine one.

 

Strngely the vast majority of the spoofs have occurred pulling out from the same junction on the way to work. It's just after a fun down hill stretch of twisty road, then a sharp right, left, right of a double T junction and I think it must be a combination of tyre pressures varying with heat and the system spotting the pressure variation or the sudden sharp right/left/right causing a tyre rolling diameter variation that trips it.

 

After initially flashing, the TPM alert stays 'steady' until the reset is pressed. I normally leave this until after work to remind me to check that it wasn't a spoof alert. Sometimes it can take quite a few protracted presses of the TPM button to cancel the alert.

 

I'm not really fussed as far as having the spoof occurrences investigated - I know the system does work which might just be a life saver, even if it isn't as intelligent as other more expensive TPM systems. 

How many circles would it take to trigger a warning, I wonder.

aerofurb,

 what pressures do you run your Yeti's tyres at that has one tyre varying in heat / temperature to have a trigger of the TPMS.

 

People are known to run their road cars at track days and have the TPMS set with the pressures they set and do not get warnings.

I'm not really fussed as far as having the spoof occurrences investigated - I know the system does work which might just be a life saver, even if it isn't as intelligent as other more expensive TPM systems. 

 

Absolutely agree. In three years I've had a couple false alerts but it did pick up a slow puncture that walking round the car and kicking the tyres I wouldn't have spotted.

Could the OP's problem have been caused by a change in nose weight of the 'van? EG if the weight was increased, this would have the effect of marginally reducing the rolling radius of the rear wheels; it would also increase the rolling radius of the front wheels - the combined difference being enough to trigger the TPMS alarm?

 

Jim

I have had no problem towing before with this and the previous Yeti,

The one slow puncture I had I found when I routinely checked the

tyre pressures the evening before setting off!

I use a Race X RX0014 Tyre Pressure Gauge, which is accurate and

consistent

 

I had a false warning once. Was caused by the NSR brake called sticking, overheating the disc, alloy and presumably tyre.

Did check all tyre pressures and only this one was out by anything even worth mentioning.

Correct me if I'm wrong please but does the TPM system fitted to the Yeti not check the tyre pressure but the size of the tyre. It's crude and the most basic system but better to have a false alarm than a tyre deflating in my view. Not had it on my two previous Yeti's but this will be one the new one, time will tell.

From what I understand, and I may be totally wrong, pressing the set button just erases the current memory. Over the next 100 kilometres or so it monitors the rotations, does some averaging, then compares this average to the measured current rotations of the wheels. If it sees a difference between the average in the memory and the current rotation rate it puts an alarm up.

So if a wheel ( tyre) diameter / circumference alters, due to pressure or weight carried, changes then it should alarm.

Fairly simple low tech, but useful.

It takes calculations from the ABS sensors (ie rotations relative to each other sensor).

Resetting it clears the memory and it relearns over the next 100km or so.

Basic, but works well enough in my experiences.