Shots
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Jscan and Alpha OBD are both programmers you can use to make adjustments to the computers. I'm not a fan of messing with the truck's computers, so I stick with the most basic thing possible. Not just in function, but in what I'm adjusting.What’s Jscan and how can I do this? The low tire pressure warning is annoying… Also need to have my speedometer adjusted with the bigger tires if any tips on this!?
The Alpha OBD seems to give you a little more functionality, but the Jscan was very easy to use, and it's cheap. They have a demo mode you can play with if you want to check it out. Look up Jscan on the app store (apple and Android). The icon looks something like this →

Mine says "OBD Jscan" under the logo, but that's on the Android market. I think the image above is the Apple version. The paid version, which gives you access to all the features is something like $30. It's cheap.
I'm not sure on Alpha's pricing or download, but pretty sure they have a demo version too.
With either, you'll need a security gateway bypass. The most popular here (and the one I used) is KAODtech. → https://www.kaodtech.com/product-page/security-module-bypass
And a way to connect to the OBDII port. Again, a popular option is Vgate, which is what I used. →

In all it was under $150 to be able to adjust my TPMS threshold, and adjust the tire size. The dealership was going to charge that as a minimum shop fee and now I can adjust a lot more stuff any time I want to (or to readjust the TPMS and tire size).
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