2012 Jeep Grand Cherokee Owner Manual - Page 451

STARTING AND OPERATING 449 with air suspension, the level will change to Normal • Rock - Off-road calibration only available in 4WD Ride Height (NRH) if the transfer case is in high range. Low range. The vehicle is raised (if equipped with Air The level will change to Off-Road 1 if the transfer case Suspension) for improved ground clearance. Traction is in Low range. based tuning with improved steer-ability for use on high traction off-road surfaces. Activate 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 traction with seamless steering feel to provide imequipped with air suspension, the vehicle level will proved handling and acceleration over two-wheel change to Off-Road 2. If the Selec-Terrain™ switch is in drive vehicles. If equipped with air suspension, the ROCK mode, and the transfer case is switched from level will change to NRH. 4WD Low to 4WD High, the Selec-Terrain™ system • Sand/Mud - Off road calibration for use on low will return to AUTO. traction surfaces such as mud, sand, or wet grass. Electronic Vehicle Information Center (EVIC) Driveline is maximized for traction. Some binding Display Messages may be felt on less forgiving surfaces. The electronic When the appropriate conditions exist, a message will brake controls are set to limit traction control manageappear in the EVIC display. Refer to "Electronic Vehicle ment of throttle and wheel spin. If equipped with air Information Center (EVIC)" in "Understanding Your suspension, the level will change to Off-Road 1. Instrument Panel" for further information. 5