2011 Jeep Grand Cherokee Owner Manual - Page 366

364 STARTING AND OPERATING to allow more driver control of vehicle while maintaining safe handling controls. The vehicle will lower (if equipped with Air Suspension) to Aero Mode in High Range. 4WD Low is not available in SPORT mode, if 4WD Low is selected the Selec-Terrain™ will auto• matically switch back to AUTO. traction with seamless steering feel to provide improved handling and acceleration over two-wheel drive vehicles. If equipped with air suspension, the level will change to NRH. Sand/Mud - Off road calibration for use on low traction surfaces such as mud, sand, or wet grass. Driveline is maximized for traction. Some binding may be felt on less forgiving surfaces. The electronic brake controls are set to limit traction control management of throttle and wheel spin. If equipped with air suspension, the level will change to Off-Road 1. • Snow - Tuning set for additional stability in inclement weather. Use on and off road on loose traction surfaces such as snow. When in Snow mode (depending on certain operating conditions), the transmission may use second gear (rather than first gear) during launches, to minimize wheel slippage. If equipped • Rock - Off-road calibration only available in 4WD with air suspension, the level will change to Normal Low range. The vehicle is raised (if equipped with Air Ride Height (NRH) if the transfer case is in high range. Suspension) for improved ground clearance. Traction The level will change to Off-Road 1 if the transfer case based tuning with improved steer-ability for use on is in Low range. high traction off-road surfaces. Activates the Hill De• Auto - Fully automatic full time four-wheel drive scent Control for steep downhill control. Use for low operation can be used on and off road. Balances speed obstacles such as large rocks, deep ruts, etc. If