2015 Jeep Grand Cherokee User Guide SRT - Page 159

OFF-ROAD CAPABILITIES (4WD OPERATION) QUADRA-LIFT™ The Quadra-Lift™ air suspension system provides full time load leveling capability along with the benefit of being able to adjust vehicle height by the push of a button. Quadra-Lift™ is available with both Quadra-Trac II® and Quadra-Drive II™. • The system requires that the engine be running for all changes. When lowering the vehicle all of the doors, including the liftgate, must be closed. • The Quadra-Lift™ air suspension system uses a lifting and lowering pattern which keeps the headlights from shining into oncoming traffic. When raising the vehicle, the rear of the vehicle will move up first and then the front. When lowering the vehicle, the front will move down first and then the rear. • After the engine is turned off, you may notice that the air suspension system operates briefly. This is normal. The system is correcting the position of the vehicle. 1 - UP Button 2 - DOWN Button • To assist with changing a spare tire, the Quadra-Lift™ air suspension system has a feature which allows the automatic leveling to be disabled. The feature controls are located in the radio screen. Driving the vehicle over 5 mph (8 km/h) will return the air suspension to normal operation. • An audible chime will be heard whenever a system error has been detected. 157