2004 GMC Canyon Owner's Manual - Page 108

Shifting from 4LO to 2HI or 4HI To shift from 4LO to 2HI or 4HI, your vehicle must be stopped or moving less than 1.2 mph (2 km/h) with the transmission in NEUTRAL (N) or the clutch pedal engaged. The preferred method for shifting out of 4LO is to have your vehicle moving 1.2 mph (2 km/h). Press and release the 4HI button. You must wait for the 4HI indicator light to stop flashing and remain illuminated before shifting your transmission into gear or releasing the clutch pedal. If the 4HI button is pressed when your vehicle is in gear and/or moving, the 4HI indicator light will flash for 30 seconds but not complete the shift. On vehicles with an automatic transmission, if your transfer case does not shift into 4HI, your transmission indicator switch may require adjustment. With your transmission in NEUTRAL (N), press and release the 4HI button. While the 4HI indicator light is flashing, shift your transmission into PARK (P). Wait until the 4HI indicator light remains illuminated before shifting your transmission into gear. Press the 4HI button again to complete the shift. This will get you into 4HI, but you should take your vehicle in for service to restore normal operation. Shifting to NEUTRAL Use NEUTRAL when you plan to tow your vehicle. See Recreational Vehicle Towing on page 4-47 for towing instructions. To shift the transfer case into NEUTRAL, set the parking brake, then press and hold the 2HI and the 4LO buttons at the same time for 10 seconds. Shifting out of NEUTRAL After towing your vehicle, you will have to shift out of NEUTRAL in order to drive. To shift out of NEUTRAL, do the following: 1. Set the parking brake and apply the regular brake pedal. See Parking Brake on page 2-29 for more information. 2. Start a vehicle with an automatic transmission in PARK (P). Use FIRST (1) for vehicles with a manual transmission. 3. Put an automatic transmission in NEUTRAL (N) or press the clutch pedal for vehicles with a manual transmission. 4. Press the button for the desired transfer case position (2HI, 4HI or 4LO). 5. Shift the transmission to the desired gear. After the transfer case has shifted out of NEUTRAL, the indicator light will go out. A re-engagement sound is normal when shifting out of NEUTRAL. 2-28