Jeep 2007 Commander User Manual download pdf (Page 262)

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101

If the problem isnolongerdetected,thetransmission will

return to normal operation. If the problem persists, P

(Park), R (Reverse), and N (Neutral) will continue to

operate. Only Second gear range will operate in the D

(Drive) shifter position. Have the transmission checked at

your authorized dealer as soon as possible.

Torque Converter Clutch

A feature, designed to improve fuel economy, has been

included in the automatic transmission on your vehicle.

A clutch within the torque converter engages automati-

cally at a calibrated speed at light throttle. It engages at

higher speeds under heavier acceleration. This may re-

sult in a slightly different feeling or response during

normal operation in high gear. When the vehicle speed

drops below a calibrated speed, or during acceleration,

the clutch automatically and smoothly disengages. The

feature is operational in Overdrive and in Drive.

NOTE: The torque converter clutch will not engage

until the transmission fluid and engine coolant are warm

[usually after 1-3 miles (1.6 - 4.8 km) of driving]. Because

the engine speed is higher when the torque converter

clutch is not engaged, it may seem as if the transmission

is not shifting into Overdrive when cold. This is normal.

Manually shifting (using the ERS shift control) between 4

(direct gear) and 5/D (Overdrive gear) positions will

demonstrate that the transmission is able to shift into and

out of Overdrive.

NOTE: If the vehicle has not been driven in several

days, the first few seconds of operation after shifting the

transmission into gear may seem sluggish. This is due to

the fluidpartiallydraining from the torque converterinto

the transmission. This condition is normal and will not

cause damage to the transmission. The torque converter

will refill within five seconds of shifting from Park into

any other gear position.

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Jeep 2007 Commander User Manual Page 262

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