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208 Posts
About a year ago, I had new (larger, 33") tires put on my truck and the Nitto LTs required that the air pressure to be upped to 45. Long story short, the TPMS obviously didn't like this. So I went to the dealer, had the ECU reprogrammed to 45psi and bingo! No light, no problems until now....I recently had an intake installed and disconnected the battery to have it done and I was on my way home on a cold morning and soon as I got on the freeway the light came on! I got all of the tires where they need to be and the light is still on! Is it possible that by disconnecting the battery that the ecu went back to its stock psi settings? What should I do? Take it back to the dealer and have them check it? Disconnect the battery and try reseting it myself? Thanks in advance!