2010 Dodge Nitro Owner Manual - Page 307

306 STARTING AND OPERATING Overdrive Operation The overdrive automatic transmission contains an electronically controlled fifth gear (OVERDRIVE). The transmission will automatically shift from fourth gear to OVERDRIVE if the following conditions are present: • the shift lever is in DRIVE risen to a suitable level. Refer to the "Note" under "Torque Converter Clutch" later in this section. During cold temperature operation, you may notice delayed upshifts depending on engine and transmission temperature. This feature improves the warm up time of the engine and transmission. • the engine coolant has reached normal operating tem- During cold temperature operation, the transmission may not downshift from second gear into first gear after perature the initial first to second gear upshift. • the vehicle speed is above approximately 30 mph (48 km/h) Transmission Limp Home Mode Transmission function is monitored for abnormal condi• the transmission has reached normal operating tions. If a condition is detected that could result in temperature transmission damage, the Transmission Limp Home NOTE: If the vehicle is started in extremely cold tem- Mode will be engaged. In this mode, the transmission peratures, the transmission may not shift into OVER- will remain in the current gear until the vehicle is DRIVE and will automatically select the most desirable brought to a stop. gear for operation at this temperature. Normal operation will resume when the transmission fluid temperature has