2003 Chevrolet Blazer Owner's Manual - Page 100
2003 Chevrolet Blazer Manual
Page 100 highlights
Shifting out of 4LO To shift from 4LO to 4HI, AUTO 4WD or 2HI, your vehicle must be stopped or moving less than 3 mph (4.8 km/h) with the transmission in NEUTRAL (N), or with the clutch pedal pressed for vehicles with manual transmission, and the engine running. The preferred method for shifting out of 4LO is to have your vehicle moving 1 or 2 mph (1.6 to 3.2 km/h). Press and release the 4HI, AUTO 4WD or 2HI button. You must wait for the 4HI, AUTO 4WD or 2HI indicator light to stop flashing and remain illuminated before shifting your transmission into gear. If the 4HI, AUTO 4WD or 2HI button is pressed when your vehicle is in gear and/or moving, the 4HI, AUTO 4WD or 2HI indicator light will flash for 30 seconds but will not complete the shift unless your vehicle is moving less than 3 mph (4.8 km/h) with the transmission in NEUTRAL (N) or with the clutch pedal pressed for vehicles with manual transmission. Shifting to NEUTRAL To shift the transfer case to NEUTRAL, first make sure the vehicle is parked so that it will not roll: 1. Set the parking brake. 2. Start the vehicle. 3. Connect the vehicle to the towing vehicle. 4. Put the transmission in NEUTRAL (N) or have the clutch pedal pressed for vehicles with manual transmission. 5. Shift the transfer case to 2HI. 6. Simultaneously press and hold the 2HI and 4LO buttons for 10 seconds. The NEUTRAL light will come on when the transfer case shift to NEUTRAL is complete. 7. Shift the transmission to REVERSE (R) for one second, then shift the transmission to DRIVE (D) for one second or FIRST (1) for vehicles with manual transmission. 8. Turn the ignition to OFF. 9. Place the transmission shift lever in PARK (P) or FIRST (1) for vehicles with manual transmission. IO. Release the parking brake prior to towing. 2-33