Started the car and the tyre pressure sensors, including the orange one on the dashboard and the service light came on. Drove it about 300 yards and all the lights went off.
Can I presume that as the morning temperature was noticeably lower, it took some time for the tyres to reach the normal pressure?

Hi,

Yeah, the pressures in the tyres are lower when they are cold, and the pressure will increase when the tyres get warm.

I'd suggest topping your tyres up a bit and see if this resolve the issue for tomorrow morning.

As I recall there was a a recall some years back where Renault re-programmed the TPMS to increase the variation in pressure difference that the system could handle.... Maybe your car escaped that process.

Cheers

 

just nipped up to morissons and succeeded in letting more air out of a tyre than i did putting it in. sodding thing never works and i had the privelage to pay for it as well!

the lights were off on my way up there, so i seems to confirm my theory

 

just nipped up to morissons and succeeded in letting more air out of a tyre than i did putting it in.

By driving to Morrisons you're heating up the air in the tyres and increasing the pressure anyway. So, setting the pressure under these conditions will mean they'll still be too low when they cool down. The recommended pressures are for when completely cold, so you might be better off buying a guage and foot pump and adjusting them at home when the tyres are fully cold.

WIth the pressure sensors that show the actual pressure, you can see that driving a short distance puts them up about 5-6 psi.

 

Try inflating the tyres to the correct pressure plus about 5 psi and then deflate to the correct pressure - this forces the tyre sensor to send a signal to the central unit.

Personally I have no faith in filling station tyre gauges as they tend to get a lot of abuse so I use my own dial gauge.

 

will try and find a garage, won't be until the weekend though, so i'll have to put with flashy ligths first thing in the morning!
thanks for the replies guys!

 

I've heard / read on here that driving for less than 10 mins and putting the air in your tyres is fine.

Anything longer and the tyres have heated up and pressures rose.

 

I have watched mine go up after driving only 2 miles!.
When i was in france i saw that i got a different temp depnding which side of the car the sun was. The highest temp i saw was 41psi and 22psi the lowest both of which haven't set of the warning.

 

as the car has been standing in the sun, i shoved by card into the slot and the lights are still flashing so i can only presume that they are way below the limts. mind you had the car 7 months and not checked them once!
yes i know! don't tell me!

 

You see is that why I got my TPM system disabled. Much less hassle.

I dont need to worry about valves snapping when they get old, dont have to worry when I get the tyres changed.... and no more annoying lights / voices on my dashboard telling me about the bloomin tyre pressures being wrong !

 

got so fed up of all the flashing lights, i've actually just been to the garage to get them blown up. all were mid 20's...
the lights didn't go out for a while though - 25 to 50 yards.....but whoo-hoo
bugger i'm a lazy sod thinking about it

 

Yeh and also added unecessary wear to the tyres