What to do if you get the tire pressure sign ( falt monitor sign )

I turn on my car in 38 degree weather for the first time and I got a warming sign . I check the manual and the warning sign indicates if you have a flat tire or loss of pressure . Luckily it was just a lost of pressure in the tires. I'm wondering if I just reset it in the idrive knowing that the tire pressure drop due to the weather or do I have to add the air that was lost ?

your tire pressure should be set to the same level regardless of the temp. you need to add air. resetting the monitor just sets the current pressure as the baseline. you do that enough times, the tire will be dangerously under inflated.

Refill the tire with air to the proper PSI, THEN reset the TPMS.

this will happen now with the temps dropping in my neck of the woods. I just got a low pressure left front tire warning and checked all four tires and they were overinflated. I set all four to my preferred settings (34 in front and 40 in the rear) and reset TPMS and BAM! good to go now

hmm ok thanks for the information . I haven't change it or reset it since Monday so I hope it has not effected the tires for 1 week off being improperly unbalance.

ok so I check the manual but i don't understand my settings. I understand the front wheels is a complete different pressure then the back. I bought a pressure gauge , so I notice in the gauge it mentions KPa,PSI, BAR, now I'm in the states and my car is a BMW 2008xi Sedan , So can anyone help me out what number for what Kpa ,PSI,BAR should I be looking at ? What I'm understanding is that my front wheels have to be 32/220 (psi/kpa) and my rear wheels have to be 36/250. Is this correct , woud anybody? I would appreciate any information.

So even after I set up the tired pressure correctly , the sign won't go away . I actually have to reset it ?

Originally Posted by BmwLifestyle

ok so I check the manual but i don't understand my settings. I understand the front wheels is a complete different pressure then the back. I bought a pressure gauge , so I notice in the gauge it mentions KPa,PSI, BAR, now I'm in the states and my car is a BMW 2008xi Sedan , So can anyone help me out what number for what Kpa ,PSI,BAR should I be looking at ? What I'm understanding is that my front wheels have to be 32/220 (psi/kpa) and my rear wheels have to be 36/250. Is this correct , woud anybody? I would appreciate any information.

Should be a sticker on the front driver door pillar with the tire pressure in either PSI or bar for your car.

It's that time of year again!

Originally Posted by BmwLifestyle

So even after I set up the tired pressure correctly , the sign won't go away . I actually have to reset it ?

It just happened to mine a couple days ago as well. Filled up all the tires (right rear was the indicator). Light went out, no reset necessary.

Originally Posted by BmwLifestyle

So even after I set up the tired pressure correctly , the sign won't go away . I actually have to reset it ?

With the tires cold, inflate each front tire to 32 psi and each rear tire to 36 psi.

Then look up "TPM - Resetting the System" in your owner's manual and follow the instructions to reset the TPMS.

Tom

Originally Posted by MMME30W

Should be a sticker on the front driver door pillar with the tire pressure in either PSI or bar for your car.

You are correct Good Sir , thanks for the info . It was so much easier then looking at the manual .

Originally Posted by Hutchman

It just happened to mine a couple days ago as well. Filled up all the tires (right rear was the indicator). Light went out, no reset necessary.

I was so glad to see the light went out by it self after I filled the correct air pressure to each tire .

Originally Posted by Tom K.

With the tires cold, inflate each front tire to 32 psi and each rear tire to 36 psi.

Then look up "TPM - Resetting the System" in your owner's manual and follow the instructions to reset the TPMS.

Tom

Thanks for indicating the specific numbers , I appreciate it .