2005 GMC Canyon Owner's Manual - Page 109

Indicator lights in the buttons show you which setting you are in. The indicator lights will come on briefly when you turn on the ignition and one will stay on. If the lights do not come on, you should take your vehicle in for service. An indicator light will flash while shifting. It will remain illuminated when the shift is completed. If for some reason the transfer case cannot make a requested shift, it will return to the last chosen setting. transmission or the clutch pedal engaged in vehicles equipped with a manual transmission. The preferred method for shifting into four-wheel low is to have your vehicle moving 1.2 mph (2 km/h). Press and release the four-wheel low button. You must wait for the four-wheel low indicator light to stop flashing and remain illuminated before shifting your transmission into gear or releasing the clutch pedal. If the four-wheel low button is pressed when your vehicle is in gear and/or moving faster than 1.2 mph (2 km/h), the four-wheel low indicator light will flash for 30 seconds and not complete the shift. On automatic transmission equipped vehicles, if your transfer case does not shift into four-wheel low, your transmission indicator switch may require adjustment. With your transmission in NEUTRAL (N), press and release the four-wheel low button. While the four-wheel low indicator light is flashing, shift your transmission into PARK (P). Press the four-wheel low button again. Wait until the four-wheel low indicator light remains illuminated before shifting your transmission into gear. Press the four-wheel low button again to complete the shift. This will get you into four-wheel low, but you should take your vehicle in for service to restore normal operation. Shifting from Two-Wheel High to Four-Wheel High Press and release the four-wheel high button. This can be done at any speed, and the front axle will lock automatically. Shifting from Four-Wheel High to Two-Wheel High Press and release the two-wheel high button. This can be done at any speed, and the front axle will unlock automatically. Shifting from Two-Wheel High or Four-Wheel High to Four-Wheel Low To shift from two-wheel high or four-wheel high to four-wheel low, the vehicle must be stopped or moving less than 1.2 mph (2 km/h) with the transmission in NEUTRAL (N) in vehicles equipped with an automatic 2-27