2006 Hummer H2 Owner's Manual - Page 284

Q: Are there some things I should not do when driving down a hill? A: Yes! These are important because if you ignore them you could lose control and have a serious accident: Q: Am I likely to stall when going downhill? A: It is much more likely to happen going uphill. But if it happens going downhill, here is what to do: 1. Stop your vehicle by applying the regular brakes. Apply the parking brake. 2. Shift to PARK (P) and, while still braking, restart the engine. 3. Shift back to a low gear, release the parking brake, and drive straight down. 4. If the engine will not start, get out and get help. • When driving downhill, avoid turns that take you across the incline of the hill. A hill that is not too steep to drive down may be too steep to drive across. You could roll over if you do not drive straight down. • Never go downhill with the transmission in NEUTRAL (N). This is called "free-wheeling." Your brakes will have to do all the work and could overheat and fade. 4-30