Tyre pressure abnormal?

[PaulC82]

Just got this mobile notification

Front right: 2.5 bar - low pressure
Front left: 2.5 bar
Rear right: 2.5 bar
Rear left: 2.5 bar

You what, mate?!

 

[drmcw]

Yeah should be nearer 2.8 bar!

 

[Alb]

They are all under pressure and although only one triggered the warning, this may be down to a rounding error on the reading.

 

[PaulC82]

Yeah should be nearer 2.8 bar!

Tyre pressure of course varies with temperature - it was very cold today when this was taken. In double digit temperatures they are indeed 2.8 bar. Plus all we’re talking about ±4 psi here!

The point is it’s claiming only 1 tyre is abnormal, despite them all being the same pressure!