Unlocking your H&S tuner is normally straightforward. However, there are a few scenarios that can occur which might cause the code purchased to not work. The following are the most common causes:

  1. When ordering the VIN Unlock Code, you must select the model of the OLD TRUCK, not the new one. 
  2. After generating the root code, and before you entered the unlock code after payment, you exited out of the menu screen. When this happens, the root code regenerates and the code you just paid for will not work.
  3. The H&S tuner you are using was a pre-2015 model. The code generator used by hsunlockcodes.com is only compatible with 2015+ tuners.
  4. The wrong code was ordered. All vehicles supported by 2015+ H&S tuners use the VIN Unlock Code. However, only the Duramax and Powerstroke vehicles require an additional code to install for the first time. 

For any of these situations, please contact support and we will try our best to help you. 


PLEASE NOTE: You may be asked to submit a picture of the tuner screen for the support team to help troubleshoot the application.