I just installed the complete TireRack.com winter wheel, tire, TPMS, black steel stems and black lug nuts mounted and balanced kit that was delivered to the office today. I have yet to get a TPMS warning after making several trips in the Bolt. Nothing! If I scroll down it shows 37PSI in all 4 tires. What gives? I expected the warning alert, but it appears to read correctly. I bought the more expensive re-learn tool they said would work with the Bolt but do I need to use it if there are no errors and it shows correctly?