trx4 TQI shifts gears but won't shift back

[jimyoung2]

hey guys, brand new trx4 defender that doesn't shift speeds. I confirmed it is not the receiver nor the servo by switching it over to the diff lock channels and it works fine. Its not the receiver because i replaced it under warranty and does the same thing. If i reverse the direction of the shift channel on the tqi transmitter i can shift into second but it then will not shift back, if i reverse the direction again then it will shift into first but not back into second

any ideas? broken red toggle on the tqi?

[Inspector86]

First, Welcome to RCC! It sounds like you have eliminated everything but the transmitter. It's possible the TQI is not sending a correct signal for channel 3. You might try resetting the transmitter to the default settings and see if that helps. The instructions for resetting the transmitter defaults are covered in your owners manual. If resetting does not help I would contact Traxxas CS and see if they will send you a replacement TQI transmitter.

[OSRC]

Is the shift servo only moving in 1 direction? Does it move at all in the other direction? Might be the endpoint is not set correctly.

Definitely give Traxxas CS a call - they are pretty good, and this is not an issue you should have with a new truck.

[jimyoung2]

thanks guys ya traxxas tech support is pretty good, right now they think it might be that the remote is not set up for the right model so when i get home today i’ll call them back and figure out how to change it. and yes i did do a tqi reset already based on the trx-4 owners manual