Owner's Manual
Page 154
... damage to assist your GM dealer. Your vehicle will not be protected by the system before any problem is required. Malfunctions can be a problem with the Passlock System. Service AWD Light (If Equipped) This light should see "Passlock" in correctly diagnosing a malfunction. 2-75 If... the light comes on continuously while driving and stays on, there may be a problem with the drive system and ...
... damage to assist your GM dealer. Your vehicle will not be protected by the system before any problem is required. Malfunctions can be a problem with the Passlock System. Service AWD Light (If Equipped) This light should see "Passlock" in correctly diagnosing a malfunction. 2-75 If... the light comes on continuously while driving and stays on, there may be a problem with the drive system and ...