1997 Chevrolet Blazer Owner's Manual - Page 85

Shifting from 4LO to 4HI or 2HI To shift from 4LO to 4HI or 2H1, your vehicle must be stopped or moving less than 3 mph (4.8 k m h ) with the transmission in NEUTRAL (N) or the clutch pedal engaged. The preferredmethod for shifting out of 4LO is to have your vehicle moving 1 to 2 mph (1.6 to 3.2 km/h). Press and release the 4HI switch. You must wait for the 4HI indicator light to stop flashing and remain illuminated before shiftingyour transmission into gear or releasing clutch pedal. the On automatic transmission equipped vehicles, if your transfer case does not 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 indicatorlight is flashing, shift your transmission into PARK (P). Wait until the 4HI indicator lightremains illuminated before shifting your transmission into gear. This will get you into 4HI. but you should take your vehicle in for service to restore normal operation. If 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 in NEUTRAL ( N ) or the clutch pedal engaged. 2-2s