F5fstop
Based on your posts you obviously have a bunch of automotive / Hummer experience. Have you tried changing the tire size setting using the TECH II. There are bunch of different sizes and pressure which if it works would allow you to run lower pressure with out getting a low tire warning. Does changing the tire size change the speedometer calibration? I have been wanting to test it but am waiting for the TPM to work correctly. I know GM wouldn’t want this done and maybe the answer needs to be the same as the locker over ride question.
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