What to do if your Bully Dog GT Tuner shows a VIN Mismatch Error:
The VIN or part number that the tuner is currently locked to does not match the one that it is reading off the PCM. Our devices can only tune 1 vehicle at a time.
The tuner could be locked to another vehicle or the PCM in the vehicle may have been flashed by a dealership or local shop after the tune was installed, thus erasing the tune off of the ECM. If this is the case, current tuners including the GT, BDX and GTX can be reset over the phone. There may be a fee associated with the reset.
How much will it cost to reset a locked Bully Dog Tuner?
Current GT Diesel and GT Gas tuners are $250 (Part Numbers: 40410, 40417, 40420, 40428)
GTX and BDX tuners (40460B, 40470) are $150 to reset.
Discontinued tuners like the 40415, 40430,40440, and 40450’s are $150 to reset.
Triple Dogs, and Power Pups can no longer be reset for additional vehicles
Please contact our Sales Department to facilitate the purchase of a Vin Unlock for your device. You can press the "Contact Support" Button below to choose your preferred communication preference.
*"no charge to unlock" means we are waiving the unlock and processing fee's at no cost to you*
Our Technical Support team is here for you.Contact Support