2015 Jeep Grand Cherokee Owner Manual SRT - Page 409
2015 Jeep Grand Cherokee Manual
Page 409 highlights
STARTING AND OPERATING 407 When the Fuel Economy (ECO) Mode is engaged, the Active Noise Cancellation vehicle control systems will change the following: Your vehicle is equipped with an Active Noise Cancella• The transmission will upshift sooner and downshift tion System, this system is designed to address the change in exhaust noise whenever the vehicle is operatlater. ing in Fuel Economy Mode (ECO) or 4 cylinder mode. • The transmission will launch (from a stop) in second This system relies on four microphones embedded in the gear. headliner to detect the exhaust drone and prompt an • The torque converter clutch may engage at lower onboard frequency generator to create counteracting engine speeds and remain on longer. sound waves through the audio system's speakers and sub-woofer. This helps keep the vehicle quiet at highway • The engine idle speed will be lower. speeds. • The overall driving performance will be more conserEight-Speed Automatic Transmission vative. • Some ECO mode functions may be temporarily inhib- The electronic shift lever in this vehicle does not slide like a conventional shifter. Instead, the shift lever is spring ited based on temperature and other factors. loaded and moves forward and rearward, always returnNOTE: ECO mode is only available in AUTO mode. ing to the center position after each gear is selected. The transmission gear (PRND) is displayed both on the shift lever and in the Driver Information Display (DID). To 5
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