The following information is taken from the factory service manual. I thought it may be helpful to those who do not have this information.
The TCM (Transmission Control Module) adapts the shift program according to driving style, accelerator pedal position, and deviation of vehicle speed.
Influencing factors are:
Road Conditions
Incline, Decline, and Altitude
Trailer operation, Loading
Engine Coolant Temperature
Cruise Control Operation
Sporty Driving Style (not my words...)
Low and High ATF (Automatic Transmission Fluid) Temperature
UPSHIFT Using 35.2% throttle.
1>2 18 mph
2>3 30 mph
3>4 42 mph
4>5 53 mph
Note: Use EVIC info obtained by holding steering wheel buttons Compass (circle with N inside) and Mode (musical note) down at the same time until EVIC mode changes, then up/down arrows to scroll to display showing throttle position.
DOWNSHIFT No throttle
5>4 34 mph
4>3 25 mph
3>2 15 mph
2>1 9 mph
AUTOMATIC ADAPTATION to equalize tolerances and wear takes place for:
Shift Time
Clutch Filling Time
Clutch Filling Pressure
Torque Converter Lock-Up Control
DRIVING STYLE ADAPTATION modifies the shift points based on inputs from the Control Modules.
Vehicle Acceleration and Deceleration (caculated by the TCM)
Rate of Change as well as Throttle Position (fuel injection input from PCM)
Lateral Acceleration (caculated by the TCM)
Gear Change Frequency (how often shifts occur)
Based on how aggressive the driver is, the TCM moves up the shift so that the present gear is held a little longer before the next upshift. If the driving style continues to be aggressive, the shift point is modified up to 10 steps. If driving returns to normal, then the shift point modification returns to the base position.
The adaptation has no memory. The adaptation to driving style is nothing more than a shift point modification to assist an aggressive driver. The shift points are adjusted for the moment and return to the base position as soon as the imputs are controlled in a more normal manner.
Hope this helps
Russ
The TCM (Transmission Control Module) adapts the shift program according to driving style, accelerator pedal position, and deviation of vehicle speed.
Influencing factors are:
Road Conditions
Incline, Decline, and Altitude
Trailer operation, Loading
Engine Coolant Temperature
Cruise Control Operation
Sporty Driving Style (not my words...)
Low and High ATF (Automatic Transmission Fluid) Temperature
UPSHIFT Using 35.2% throttle.
1>2 18 mph
2>3 30 mph
3>4 42 mph
4>5 53 mph
Note: Use EVIC info obtained by holding steering wheel buttons Compass (circle with N inside) and Mode (musical note) down at the same time until EVIC mode changes, then up/down arrows to scroll to display showing throttle position.
DOWNSHIFT No throttle
5>4 34 mph
4>3 25 mph
3>2 15 mph
2>1 9 mph
AUTOMATIC ADAPTATION to equalize tolerances and wear takes place for:
Shift Time
Clutch Filling Time
Clutch Filling Pressure
Torque Converter Lock-Up Control
DRIVING STYLE ADAPTATION modifies the shift points based on inputs from the Control Modules.
Vehicle Acceleration and Deceleration (caculated by the TCM)
Rate of Change as well as Throttle Position (fuel injection input from PCM)
Lateral Acceleration (caculated by the TCM)
Gear Change Frequency (how often shifts occur)
Based on how aggressive the driver is, the TCM moves up the shift so that the present gear is held a little longer before the next upshift. If the driving style continues to be aggressive, the shift point is modified up to 10 steps. If driving returns to normal, then the shift point modification returns to the base position.
The adaptation has no memory. The adaptation to driving style is nothing more than a shift point modification to assist an aggressive driver. The shift points are adjusted for the moment and return to the base position as soon as the imputs are controlled in a more normal manner.
Hope this helps
Russ
