Using The Transfer Case Shift Control Switch
WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The Learn procedure is performed with the ignition in the ACCESSORY position. The shift to transfer case NEUTRAL procedure uses this same procedure, but with the key in the RUN position.
- Key OFF for at least 30 s.
- Engage parking brake.
- Place transmission in Neutral.
- Turn the S77 Transfer Case Shift Control Switch to the 2WD HI position for at least 5 s.
- Turn the S77 Transfer Case Shift Control Switch clockwise past the 4WD HI position until it stops and hold for at least 30 s.
- An audible noise from the A16 Transfer Case Encoder Motor should occur, indicating a successful learn procedure.