2014 Chevy Silverado 1500 stuck in 4WD

[Beachdriving02]

A few times, my truck has gotten stuck in 4WD (both low & high). My friend has a computer he is able to reset it with, but it's something I'd like to resolve. Any tips on whether it could be the transfer case control module, transfer case motor or actuator? 

[newdude]

52 minutes ago, Beachdriving02 said:

A few times, my truck has gotten stuck in 4WD (both low & high). My friend has a computer he is able to reset it with, but it's something I'd like to resolve. Any tips on whether it could be the transfer case control module, transfer case motor or actuator? 

 

 

Actuator is high probability.  

[JimCost2014]

With the Transfer Case Selector Switch, make sure that:

• If when you put it in “Auto” it blinks for a bit then stays lit — or if it doesn’t blink, or blinks then turns off — you might have a problem with the front axle actuator.
• If when you put it in 4-High or 4-Low it doesn’t light, or if it blinks then turns off, you might have a problem with the transfer case shift motor/encoder.
• If when you put it in 4WD nothing happens with the switch, but the “Check 4WD” light comes on in the DIC, you might have a problem with the transfer case control module, located behind the dashboard near the location of the transfer case selector switch.

But before replacing any switch or controller, make sure that the ground connection going to it is viable. The ground wires for the selector switch and TCCM are attached to the frame under the front of the driver’s door. Unbolt these wires, clean their contact area to bare metal as well as the bolt threads, and reattach the wires to the frame (5 minute job).

[richard wysong]

The actuators can become stuck due to corrosion around the threads, try unscrewing it, if it unscrews easily that is not your problem, if you can not unscrew it try cleaning the threads before buying a new 1. I have had to disassemble the housing before to get them off they get so tight