[f5fstop]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by richk:
The tech even made a comment to me, something to effect of "Hummer is not even paying for our service time on all these TPM issues". </div></BLOCKQUOTE>

BS on the part of the tech, or the dealer is screwing the tech. GM has a labor op 9995 that is "customer concern not duplicated," he can use. In addition, if he is smart enough to find the problem, they can claim "other hours" for diagnosis on the part replaced.
What they can't claim is a duplicate for a part replace that was not defective. If it takes them three tries to relearn the system, they can get paid for it, if the dealer submits the claim.
One of the biggest problems I have seen with techs is the dealer does not pay them what the labor time from GM says.
In addition, I believe GM just released some new ops that pertain to diagnosing these sensors, and will even pay if it is due to the customer not having correctly inflated tires.