Bully Dog GT Tuner 335 Error Code on a GM Gas Vehicle

    November 16th, 2021

    This means that the tuner was unable to unlock the PCM. 

    Make sure the key is all the way to the on/run position, without starting the engine. Some special edition vehicles such as the Rocky Ridge vehicles will get this code. Our tuners are not compatible with some of these special edition trucks.

    Was this article helpful?

    Can’t find what you’re looking for?

    Our Technical Support team is here for you.

    Contact Support