Originally Posted by KwlAznKid
going to the gas station at lunch to check my tire pressure but this is bothering me
??? I highly recommend stopping by an Autozone or equivalent and just getting a digital tire pressure gauge. They're cheap and a zillion times more accurate that any gas station air pump gauge I've ever encountered.
Plus, you're supposed to check tire pressure on cold tires; i.e. when they've not been driven on for a few hours. Driving to the gas station is likely to bump up the pressure a couple PSI. Not a big deal when you're looking for one tire being off from the others, but for best results I recommend having your own tire gauge and small compressor at home.
Which wheel is TPMS saying is low pressure?