Any Idea What This Means?

They are all at 29 but one is orange?

 

first reported ?

 

If one of your TPMS (Tire Pressure Monitoring System) readouts is orange, it typically means that the tire corresponding to that readout has low air pressure and needs to be inflated to the recommended level; check the tire pressure with a gauge and add air as necessary.

Don't worry, I have had this happen to me. It wasn't identical, but I had the right front at 29PSI one morning, but I never got the orange indicator. Two days later, the right rear was at 29, and I got the pop up.

Just air up the tire, actually, air them all up to 32 - 35PSI (Depending on what tires you have) and be done with it.

 

Last week when it was 4° I had the low tire warning light, my spare has 29 lbs and it was orange, the rest all had 34 lbs.

 

Well said and this is what I did. Just thought it was odd that the cpu marked one orange but none of the others.

 

All of the tires are between 28.5 and 29.4 psi (readout just rounds it to 29).

Rear passenger must be the only one below the warning threshold.

Imagine these numbers (just made up):
29.4 29.2
29.1 28.9

 

It has nothing to do with the ECU, it's that one sensor that is slightly off on it's calibration compared to the others.

 

It means that the ambient outside temperature has fallen and your tires need to warm up.

 

This ^

I believe the warning (number highlighted in orange) comes up when tire pressure is below 29 psi
The system rounds up/down so 3 of them are still technically 29 psi (29.0-29.4) and the one in orange is between 28.5 and 28.9 psi.