valhallah

I’ve got an check tire pressure issue. All my sensors are good and batteries on them are also good. I’ve relearned reprogrammed the sensors correctly and no other codes with de one scanner. What else could the issue be - all sensors mark the 35 psi. No leaks . Any guesses comments ?

Oldblue

I see you have a 2008 model year HHR , it is possible you need to have the module reflashed.

valhallah

this very well could be the issue. I surely have not trie md this before. I know there’s a spot here somewhere with the software update. Now is this possible through the Maxis link scanner as well ? If you have the link to the thread and download I would greatly appreciate it as well as the procedure to follow. Which I would assume is to do the relearn procedure all over again after flashing the firmware. I just never thought I would really need this. I did swap out the PCM sometime ago and had to relearn the crankshaft . So yeah his very well could be the solution

Oldblue

I’m not sure about that scanner model. I do know the reflash was through a GM dealer, most don’t even remember those scanners. Perhaps the website for that scanner model will have information.

donbrew

I don't understand the problem. Can you do the position relearn?
If not, you need to get updated firmware from GM "Tis2web" or GMSI. It is not free and I don't know if your scan tool works or not.