Jeep grand cherokee Owner's Manual page 423

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This range should be used for most city and highway

driving. It provides the smoothest upshifts and down-

shifts, and the best fuel economy. The transmission

automatically upshifts through all forward gears. The

DRIVE position provides optimum driving characteris-

tics under all normal operating conditions.

When frequent transmission shifting occurs (such as

when operating the vehicle under heavy loading condi-

tions, in hilly terrain, traveling into strong head winds, or

while towing heavy trailers), use the Paddle Shift

switches (refer to Paddle Shift Mode in this section for

further information) to select a lower gear. Under these

conditions, using a lower gear will improve performance

and extend transmission life by reducing excessive shift-

ing and heat buildup.

During extremely cold temperatures (-22°F [-30°C] or

below), transmission operation may be modified depend-

ing on engine and transmission temperature as well as

vehicle speed. Normal operation will resume once the

transmission temperature has risen to a suitable level.

This mode alters the transmission's automatic shift

schedule for sportier driving. Upshift speeds are in-

creased to make full use of available engine power. To

switch between DRIVE and SPORT modes, tap the shift

lever rearward. SPORT mode is only accessible from

NOTE: When Sport Mode is enabled, vehicles with the

Quadra-Lift™ air suspension system will operate in

"Aero" Mode. Please refer to Quadra-Lift™ in Starting

and Operating for further information.

STARTING AND OPERATING 421

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