RANGE SELECTION [5R55S]
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• The transmission has 7 range positions: P, R, N, D, 3, 2 and 1.
Park (P Position)
• In the P position:
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― There is no power flow through the transmission.
― The parking pawl locks the output shaft to the case.
― The engine may be started.
― The ignition key may be removed.
Reverse (R Position)
• In the R position:
-
― The vehicle may be operated in a rearward direction, at a reduced gear ratio.
Neutral (N Position)
• In the N position:
-
― There is no power flow through the transmission.
― The output shaft is not held and is free to turn.
― The engine may be started.
Drive—Overdrive Enabled (D range)
• D range (overdrive enabled) is the normal position for most forward driving.
• The D range provides:
-
― Automatic shifts 1—5 and 5—1.
― Apply and release of the torque converter clutch.
― Maximum fuel economy during normal operation.
― Engine braking in 5GR
Drive—Overdrive Canceled (D range, O/D OFF mode)
• The D range provides:
-
― Automatic shifts 1—4 and 4—1.
― Apply and release of the torque converter clutch.
― Maximum fuel economy during normal operation.
― Engine braking in 4GR
Manual 3 (3 range)
• The 3 range provides:
-
― 3GR start and hold.
― Torque converter clutch apply and release.
― Improved traction on slippery roads.
― Engine braking.
Manual 2 (2 range)
• If this position is selected at normal road speeds, the transmission will downshift into the next lower gear and continue downshifting until the vehicle reaches 2GR.
• The 2 range provides:
-
― 2GR start and hold.
― Torque converter clutch apply and release.
― Improved traction on slippery roads.
― Engine braking.
Manual 1 (1 range)
• If this position is selected at normal road speeds, the transmission will downshift into the next lower gear and continue downshifting until the vehicle reaches 1GR.
• This position provides:
-
― 1GR operation only.
― Engine braking for descending steep grades.
