Service 4WD Warning
Service 4WD warning is showing on my 2006 Chevy Silverado 1500 Z71. I've replaced the Transfer Case Control Module, the in dash push button selector switch, changed the transfer case fluid, cleaned the ground wire connections on the frame under the driver's door, and checked all fuses. Warning is still on & I cannot shift the transfer case. Right now it is stuck in Auto 4WD.
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