What is "Tow/Haul" ?
My gas class A has automatic trans, and on the shift lever is a button on the end. It is labeled tow/haul. What does this do?
Forum Discussion
donnyB7 wrote:
My gas class A has automatic trans, and on the shift lever is a button on the end. It is labeled tow/haul. What does this do?
In general, it changes the shift points in the TCM (transmission control unit). Some transmissions do additional things but in general that is it. The TCM delays upshifts and more aggressively downshifts when in tow haul mode. The idea is to keep the engine in peak power band longer rather than upshift and lose torque and power.
