Tow/haul mode is a function within the vehicle'ssoftware/calibration that optimizes transmission gear selection foroperation during towing or with heavy loads. This optimizationincludes improving acceleration performance during launches,reducing shift busyness, assisting brake performance and speedcontrol during engine braking situations, and improving vehiclespeed control while requiring less throttle pedal activity.
In general, tow/haul mode maintains lower gears longer andincreases shift pressures. It is designed to be most effective whenthe vehicle and trailer combined weight is at least 75% of thevehicle's Gross Combined Weight Rating-(GCWR). Operationof tow/haul in a lightly loaded or non-loaded vehiclewill not cause damage. However, there is no benefit to theselection of tow/haul when the vehicle is unloaded, and use oftow/haul mode during unloaded driving conditions will decrease fueleconomy and may generate shift feel concerns.
Control Solenoid (w/Body and TCM) Valve Assembly Automatic Transmission Unit
Control Solenoid (w/Body and TCM) Valve Assembly:ii(11)Actuator Feed Limit(13)PCS Line(14)PCS R1/456 Clutch(15)Solenoid 1(16)Solenoid 2(23)PCS 35 Reverse Clutch(30)PCS 1234 Clutch(42)PCS 26 Clutch(48)PCS TCC ...