[dmako]

Since the cold weather has started my tire pressure has dropped to 27 PSI and the flat tire warning appeared.

Well not the pressue is back up to 30-31 PSI but the little flat light below the tach is always on.

Also if I check the tire pressue it says that I have a flat tire and should check.

How do I reset the flat tire warning?

 

[dmako]

I might have found the answer by searching.


There is no "Reset" steps in the service manual, but I called the dealer, and they said to take it ABOVE 32 for 6 miles.. and it will reset..

 

[ekaxel]

Inflate all the tires (cold) to the mfg recommended 32 psi. It needs to be checked more often in cold weather.

 

[jloebick]

I had the exact same problem! It drove me crazy. Until I found out that the tire pressure needs to be at 33 PSI. Look on the inside of the drivers door, where it latches. There is a sticker with some PSI numbers and, unlike a typical car, these SUV tire require 33 PSI. I pumped them up and I haven't had a problem since.

 

[Matrixnyc]

I have the TPM as well and I parked on Snow and Ice for 2 days of Below 0 degree temps and the sensors never gave me an error. Are you sure that the tire are under inflated for cold weather. Wonder it you might have defective sensors?

 

[Eric L.]

I have my own air compressor so in my garage (which is usually between 50-60 degrees) I inflate the fronts to 36, rears to 34. Then when I am driving outside in the 0 degree weather, the tire pressures are right at spec - 33psi.

 

[pat]

tire pressure

I encountered the same problem. The sensor activates at 27 psi. I added air incrementally by 1 psi. The sensor reset at 28 psi. Remember, tire pressure decreases with temp.

 

[Doombringer]

I just had this happen with the last big-freeze up here in the northeast. My tires dropped from a lovely 33 PSI (cold) to 26/27 PSI (cold). I got them up to around 30 when hot, but the sensor remained on.

I just refilled them this morning. Back up to 33/34 PSI (didn't have a digital gauge when filling) and the light went off after about a minute of driving.

 

[pat]

tire pressure

Inflating the tires above 30 psi directly affects road noise and ride. I keep mine at 29 psi. I contacted the tire manufacturer and 29 psi has no adverse tire effects.

 

[Eric L.]

The handling is a lot mushier and steering less responsive if you underinflate your tires. There was a dramatic difference in cornering feel when I increased pressure from 32 to 35 psi.

 

[ekaxel]

@ 29 psi, your tires will disappear quickly!

 

[roylevitt]

same thing happened to me... just put some air in the tires (32-35 psi) and your golden.

When it warms up, you'll need to let some out.

 

[speedy6]

I had the same problems as well

This happens when when the weather gets really cold.

All I could do is inflate the tire that shows a lower PSI.

This is probably the only problem of having a TPM :2:

 

[hfelknor]

Well, then there is the problem of rotating the tires..........
And the problem of having the guys at Discount Tire do it right when you replace the OEM tires.....

I deliberatly did not buy the one with the NAV.
I deliberatly did not buy the one with the TPMS.

I am sorry I didn't get the NAV.

Homer

 

[dmako]

Just to let eveyone know, aired up the tires, warning is gone.