2004 GMC Yukon Owner's Manual - Page 126

Shifting Out of NEUTRAL To shift out of NEUTRAL: 1. Set the parking brake and apply the regular brake pedal. 2. Shift the transmission to NEUTRAL (N) and turn the ignition to RUN with the engine off. 3. Press the button for the desired transfer case shift position (2HI, 4HI, AUTO 4WD OR 4LO). 4. After the transfer case has shifted out of NEUTRAL the red light will go out. 5. Release the parking brake. 6. You may start the engine and shift the transmission to the desired position. Excessively shifting the transfer case into or out of the different modes may cause the transfer case to enter the shift protection mode. This will protect the transfer case from possible damage and will only allow the transfer case to respond to one shift per 10 seconds. The transfer case may stay in this mode for up to three minutes. All-Wheel Drive with Stabilitrak® With this feature, engine power is sent to all four wheels all the time. This is like four-wheel drive, but there is no separate lever or switch to engage or disengage the front axle. It is fully automatic, and adjust itself as needed for road conditions. The transfer case buttons are located to the left of the instrument panel cluster. Use these buttons to shift into and out of four-wheel drive. 2-32