Vehicle calibration identification
Posted: Thu Oct 07, 2021 12:38 am
I ran across this GM TSB tonight while trying to do some TSB research to update the site and thought this might be of interest. This directly refers to people putting aftermarket tunes into cars and what GM does in the event of discovery. It was more about people trying to make warranty claims on failed components with after-market tunes on-board, however we've also had some discussions about things like CARB board emissions and what will make you fail testing, so I thought I'd just put it up for general perusal. It's sourced directly from the NHTSA so at this point it's a public record. Here's the linky;
https://static.nhtsa.gov/odi/tsbs/2019/ ... 6-9999.pdf
Some of the remedies are a bit draconian like "blocking the remainder of the powertrain & driveline warranty coverage"..... The only cars that might have any powertrain coverage left MAY be the 2017 models and I don't know of any in private hands yet, I've seen 16's showing up in private hands but not the 17's so far except for one or two oddballs. Also there are a BUNCH of revisions to this TSB, this particular revision is dated June 2019 and covers all Caprice PPV's, even though they are not specifically called out by name (they were in earlier revisions of this TSB).
Eric
https://static.nhtsa.gov/odi/tsbs/2019/ ... 6-9999.pdf
Some of the remedies are a bit draconian like "blocking the remainder of the powertrain & driveline warranty coverage"..... The only cars that might have any powertrain coverage left MAY be the 2017 models and I don't know of any in private hands yet, I've seen 16's showing up in private hands but not the 17's so far except for one or two oddballs. Also there are a BUNCH of revisions to this TSB, this particular revision is dated June 2019 and covers all Caprice PPV's, even though they are not specifically called out by name (they were in earlier revisions of this TSB).
Eric