Owner's Manual
Page 147
... check to assist your service technician in the Index. 2-74 For more information, see "Tow/Haul Mode" in correctly diagnosing a malfunction. Service AWD Light (If Equipped) This light should come on briefly when you it is required. Tow/Haul Light This light should come on to the vehicle.... Malfunctions can be indicated by the system before any problem is apparent, which may prevent serious damage to indicate that there may be a problem with the drive system and service is working. The SERVICE AWD light comes on when the tow/haul mode has been selected.
... check to assist your service technician in the Index. 2-74 For more information, see "Tow/Haul Mode" in correctly diagnosing a malfunction. Service AWD Light (If Equipped) This light should come on briefly when you it is required. Tow/Haul Light This light should come on to the vehicle.... Malfunctions can be indicated by the system before any problem is apparent, which may prevent serious damage to indicate that there may be a problem with the drive system and service is working. The SERVICE AWD light comes on when the tow/haul mode has been selected.