Originally Posted by brucemillar

If using inpa? on >Calibration/Set Height you have to ignore the deviation figures.

What you have to do is get the truck 100% level.
Then measure from the ground to the fender center via the wheel center.
The difference between that measurement and the stated default is what you are need to correct, regardless of any "Deviation" numbers.

TIP: get a bit of paper & a pen and write down all four corner measurements BEFORE you start to enter them into the system. Ideally you only want to do this once.

With inpa: Make sure that you have cleared any errors prior to entering your numbers.

Engine on
Drivers door ONLY open.
Enter measurements
Close drivers door
Watch car re-calibrate.
Give it a few minutes to finish & settle.
Remove inpa etc.
Turn engine off, remove keys, lock car, wait 15 minutes.
Go back and check that the settings are still good by using the Manual dash switch, to raise and lower the car.