Condition Certain 2018 model year Chevrolet Silverado and GMC Sierra vehicles, equipped with the manual shift transfer case (RPO NQG), may have a condition in which the transfer case shift linkage rod bolt torque
is less than specified. Over time this bolt could loosen enough to allow the transfer case shift indicator
to be inaccurate; or the bolt could fall off causing the transfer case to remain in its previous position and
the shifter to be non-functional.
Correction Tighten the transfer case shift linkage rod bolt to the specified torque
