GMC Sierra 2500 HD stuck in 2nd gear due to computer sensing problem requiring reset on GMC Sierra 2500 HD

Some GMC Sierra 2500 HD owners report experiencing issues with their vehicle being stuck in 2nd gear due to a computer sensing problem that requires a reset. These owners have found that performing a system reset can sometimes resolve the issue. Additionally, some recommend disconnecting both the positive and negative battery cables for at least 10 minutes to ensure a complete reset of all computers and modules in the vehicle. Others have successfully used the Onstar call button or specific button combinations as outlined by GM to reset their systems. Following these methods may help alleviate the problem of being stuck in 2nd gear.