1996 GMC Jimmy Owner's Manual - Page 83

Shifting from 4LO to 4HI To shift from 4LO to 4H1, your vehicle must be stopped or moving less than 3 mph (4.8 km/h) with the transmission i n NEUTRAL (N) or the clutch pedal engaged. The preferred method for shifting out of 4LO is to have your vehicle moving 1 to 2 mph ( I .6 to 3.2 km/h), Press and release the 4HI switch. You must wait for the 4H1 indicator light to stop tlashing and remain illutninated before shifting your transmission into gear or releasing the clutch pedal. I f the 4HI switch 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 unless the vehicle is moving slower than 3 mph (4.8 km/h) and the transmission is i n NEUTRAL ( N ) or the clutch pedal engaged. On automatic transmission equipped vehicles, if your transfer case doesnot shift into 4H1, your transmission indicator switch may require adjustment. With your transmission in NEUTRAL (N), press and release the 4HI switch. 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. This will get you into 4H1, but you should take your vehicle in for service to restore normal operation. Parking Brake To set the parking brake, hold the regular brake pedal down with your right foot, Push down the parking brake pedal with your left foot. If the ignition is on, the brake system warning light will come on. To release the parking brake hold the regular brake pedal down. 2-26