You need to be able to look at the software on the HCM. I have found that 2022MY trucks actually recieved an update that corrects this. 2023 are also running the correct software. For some reason the 2021MY never got the update (The ones that i have looked up so far). So updating the file corrects this.
My original file was F10A: ML34-14D067-BB
Updated file is F10A: ML34-14D067-BE
You need the 2.4 version of forscan and the correct file. Loading the new file only takes about 5 minutes. If you need help im willing but you need to understand that i cant just send links and files to everyone that ask and you also need to know how to use forscan. Also, If you screw something up in the process, Thats on you. Its honestly super easy but you know how some people can be. @BAP84 put in alot of work to verify the issues so i was willing to help. If you do not have tha ability to check what files you have on you HCM, Send me your vin and i can have a look.
My original file was F10A: ML34-14D067-BB
Updated file is F10A: ML34-14D067-BE
You need the 2.4 version of forscan and the correct file. Loading the new file only takes about 5 minutes. If you need help im willing but you need to understand that i cant just send links and files to everyone that ask and you also need to know how to use forscan. Also, If you screw something up in the process, Thats on you. Its honestly super easy but you know how some people can be. @BAP84 put in alot of work to verify the issues so i was willing to help. If you do not have tha ability to check what files you have on you HCM, Send me your vin and i can have a look.