Quick noobie MCS question - "Low Tire"

[FC]

I went to move the MCS into the garage on a VERY cold night and got a "low tire" warning. The tires look fine. I thought the extreme cold had brought the pressur ebelow some treshold. The other day, at ~30F I moved the car again and it still said the same.

I had no idea the MCS had a TPMS. I assume it is a basic treshold alarm-style TPMS. What is this pressure. Do I really have a flat, or is the tire at 29psi, for example and it just doesn't like it?

Naturally, I've been sick and very busy and have not yet had it inspected (already past due as of yesterday). I'm 100% this low tire thing will fail me.

Thanks.

[JST]

Originally Posted by FC

I went to move the MCS into the garage on a VERY cold night and got a "low tire" warning. The tires look fine. I thought the extreme cold had brought the pressur ebelow some treshold. The other day, at ~30F I moved the car again and it still said the same.

I had no idea the MCS had a TPMS. I assume it is a basic treshold alarm-style TPMS. What is this pressure. Do I really have a flat, or is the tire at 29psi, for example and it just doesn't like it?

Naturally, I've been sick and very busy and have not yet had it inspected (already past due as of yesterday). I'm 100% this low tire thing will fail me.

Thanks.

It has TPMS; sorry if I forgot to mention that. It's a threshold system but it uses RF transmitters. Transition to colder temps will sometimes trigger it, both on the Mini and the BMW (which uses the same system). Check the pressures, inflate all to spec, and reset the TPMS (the instructions are in the manual, but it involves fiddling with the OBC button on the left turn signal stalk) and it should be fine.

[Plaz]

Originally Posted by JST

It has TPMS; sorry if I forgot to mention that. It's a threshold system but it uses RF transmitters. Transition to colder temps will sometimes trigger it, both on the Mini and the BMW (which uses the same system). Check the pressures, inflate all to spec, and reset the TPMS (the instructions are in the manual, but it involves fiddling with the OBC button on the left turn signal stalk) and it should be fine.

I reset it on the nav screen though. Sometimes I have to drive a half a block before it actually resets. But maybe I have a weak transmitter somewhere.

[FC]

Cool. That is what I figured. Thanks guys!

I think that night I moved it temps were about 5F.

OT: With the V70R in the shop and the MCS in the main garage, I have so much freakin room, it's awesome.

[clyde]

dude sold you a lemon

[BahnBaum]

I heard him laughing all the way to the bank.

Alex

[kognito]

pretty sure that some type of TPMS is required on any car 2009 or newer. Our 2010 Malibu has one (display's individual pressures, front then rear)

I bought a Pressure Pro system for the truck and trailer. Monitors and displays all pressures and temp changes on all six tires on the Volvo and seven tires on our RV (I bought a sender for my spare, too ) Actually last summer one of my sensors failed, so I am no longer monitoring the spare tire.

Our 2008 Rabbit just had an idiot light when a tire was low, but you had to check the tires with your gage to see which one was low.

[FC]

Originally Posted by BahnBaum

I heard him laughing all the way to the bank.

Alex

I went with him to the bank.

[Alan]

Don't you have a tire pressure gauge ? ?

[FC]

Originally Posted by AF

Don't you have a tire pressure gauge ? ?

Of course I do. I just noticed this while worried about other stuff and thought about it at work.