Low tire reset trick?
Low tire reset trick?
Hey all,
My low tire light came on, so I stopped and put air in my rear tires (they were at 29 lbs and now 37lbs)
Now after a day, I cannot get my low tire dash light to go off.
I have pushed and pulled the information trigger / lever…. I guess im not following the proper procedure.
Any advice?
Thanks in advance
signed.... "Sometimes im Tard did"
My low tire light came on, so I stopped and put air in my rear tires (they were at 29 lbs and now 37lbs)
Now after a day, I cannot get my low tire dash light to go off.
I have pushed and pulled the information trigger / lever…. I guess im not following the proper procedure.
Any advice?
Thanks in advance
signed.... "Sometimes im Tard did"
Couldn't get rid of the problem until I tried this. No more warning light.
http://forums.rennlist.com/rennforum...31-post13.html
http://forums.rennlist.com/rennforum...31-post13.html
i always post this trick but never hear back whether it works so i'll post again (and it works for me!): overinflate by a pound or 2 while the car is on. if that doesnt clear it, then try overinflating first, then resetting.
I assume the factory pressure specs are 33 front and 39 rear cold - at least that's what mine are. So, if you are only filling to 37 lbs you probably don't have enough pressure to reset the rears under any circumstances and perhaps the fronts as well if your tires have been driven more than a mile or two to get to a pump and they are warm. When I have to reset mine, which is typically after every track day, I generally inflate to 40/45 - ish which causes the warning lights to disappear and then bleed them back to a normal pressure after they have cooled overnight. If your tires are really warm when you add air, you might have to get the pressures close to 50 to get the lights to turn off. Hope that helps.
Switching to alternate tire configuration in tpms setup. Starting the learn process and switching back to actual tires and redoing the process will fix issues on 997.1. You may have to drive hwy speed in a straight line. 997.2 has better sensors and faster detection times.
As a side note:
Tire pressures are really important on cars with tight suspensions and lowered like the S.
Depending on temperature outside in shade close to ground (not road temperature) adjust pressure based on chart attached. Car should not have been driven more than a mile preferably. See link on how driving for a while heats air in tires.
Here is a good read.
http://www.tirerack.com/tires/tirete....jsp?techid=73
If you are technically inclined. (Hopefully it does not have contradicting info)
http://www.arden.org/misc/pressure.html
Here is why nitrogen lasts longer when used and does not react to temperature changes much.
http://www.popularmechanics.com/cars...stions/4302788
The Porsche manual also explains this but not in detail.

Hope this helps!
As a side note:
Tire pressures are really important on cars with tight suspensions and lowered like the S.
Depending on temperature outside in shade close to ground (not road temperature) adjust pressure based on chart attached. Car should not have been driven more than a mile preferably. See link on how driving for a while heats air in tires.
Here is a good read.
http://www.tirerack.com/tires/tirete....jsp?techid=73
If you are technically inclined. (Hopefully it does not have contradicting info)
http://www.arden.org/misc/pressure.html
Here is why nitrogen lasts longer when used and does not react to temperature changes much.
http://www.popularmechanics.com/cars...stions/4302788
The Porsche manual also explains this but not in detail.
Hope this helps!
Last edited by DS997c2s; Mar 27, 2012 at 11:07 PM. Reason: typo
Plus, this one is much simpler; no touching of dirty dust caps and crouching over wheels. All can be done from the comfort of the driver's seat
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