SHIFT PATTERNS [LA4AX-EL (CD4E)]

BUE051700000N14

Up-shifts

• The PCM has an adaptive learning strategy to electronically control the transaxle.

• The adaptive learning strategy will automatically adjust the shift feel to the driver demands. The first few miles of operation the transaxle may have abrupt shifts, but this is a normal operation and will correct itself.

• If the battery has been disconnected for longer than 20 min the shift tables will reset and need to be relearned.

• Up-shifting is controlled by the PCM. The PCM receives inputs from various engine and vehicle sensors along with driver demands to control shift scheduling, shift feel, and TCC operation.

Down-shifts

• Under certain conditions the transaxle will down-shift automatically to a lower gear range (without moving the selector lever).

• There are three categories of automatic down-shifts:

- Coastdown

- Torque demand

- Forced or kickdown-shifts

Coastdown

• The coastdown down-shift occurs as the name indicates, when the vehicle is coasting down to a stop.

Torque Demand

• The torque demand down-shift occurs automatically during part throttle acceleration when the demand for torque is greater than the engine can provide at that gear ratio.

• The transaxle will disengage the TCC to provide added acceleration, if applied.

Kickdown

• For maximum acceleration, the driver can force a down-shift by pressing the accelerator pedal to the floor.

• A forced down-shift into 2nd gear is possible below 88 km/h {55 mph}.

• Below approx. 40 km/h {25 mph} a forced kickdown to 1st gear will occur.

• For all shift speeds, specifications are subject to variation due to tire size and engine calibration requirements.