2002 GMC Envoy Owner's Manual - Page 95

Shift Lock Release This vehicle is equipped with a shift lock release system. If your vehicle has a dead battery and you need to have your vehicle towed, there is a shift lock release lever that will allow you to move the shift lever out of PARK (P). To access the shift lock release lever, do the following: 1. Press on the sides of the boot around the shift lever to release the boot. 2. Lift up the boot on the shift lever and you will see an orange lever. 3. Press the orange lever down and move the shift lever out of PARK (P). 4. Snap the shift lever boot back in place. Four-Wheel Drive (If Equipped) If your vehicle has four-wheel drive, you can send your engine's driving power to all four wheels for extra traction. To get the most satisfaction out of four-wheel drive, you must be familiar with its operation. Read the part that follows before using four-wheel drive. You should use two-wheel drive (2HI) for most normal driving conditions. NOTICE: Driving in the 4HI or 4LO positions for a long time on dry or wet pavement could shorten the life of your vehicle's drivetrain. 2-26