It bascially keeps you from abusing the truck too much. When it detects strain it cuts power. So a pedal to the metal start would engage it. have you tried rolling on the throttle from the start, that might help a little.
"As of 1999, General Motors started implementing what they refer to as “torque management.” This reduces power at certain rpm ranges in order to relieve stress to the drive train. As years have past, “torque management” has become increasingly apparent."
Transmission Torque Management protects the transmission from abuse under varying driving conditions. For example, if you rev up your car in Neutral, and drop it into Drive with the idea of squealing away and making a lot of noise, chances are you could mess up the tranny pretty bad. Or, if you're in a rocking pattern from Drive to Neutral to Reverse and back, trying to get out of sand or snow, you could give the trans some abuse if you're not careful. But those GM engineers don't want you hurting their advanced electronic transmissions. That's why they developed Transmission Torque Management. It works to limit the torque and not allow it to exceed prescribed limits for the gear selected. Those reliable eMotion sensors read the situation, pass the information to the eMotion controller and prevent transmission abuse and subsequent damage. Instead, the torque and speed are adjusted for seamless, responsive shifting that protects the clutch and other powertrain components. Your transmission lasts longer and the shifting is smoother.
What happens when you drive along at a constant speed and suddenly take your foot off the accelerator? -- Or just the opposite, press down hard? Ever hear or even feel a "clunk" in the driveline as your vehicle slows or accelerates? Sometimes it happens. Know what that is?
It's the powertrain components literally moving in reaction to the sudden surge or drop in engine torque. True. They do that. Now GM engineers are getting rid of that bothersome clunk. With the Tip-in Bump Torque Control, eMotion electronic sensors working off of engine air flow monitor sudden torque changes. They prevent the clunk by controlling the torque and easing in the torque change. All this happens instantly - you don't even know it's happening - and there's really no significant impact on performance. What there is, however, is a positive impact on comfort and a reduction in noise. Say good by to the clunk. It's fading away.
Imagine this: you're driving a car with a manual transmission and you're waiting for a traffic light to turn green. When it does, you come off the clutch a hair too fast and as you move off the line, you feel some flutter in the driveline. It's no big deal, but it is a little disconcerting. Know what it is? It's what we call "chuggle" (don't ask who came up with that word, we couldn't tell you) and it comes from having a little too much torque to handle when the clutch is released too fast.
Solution? We've got one.
Through eMotion sensors that monitor and control spark timing, engine torque is instantly modified to make up for the fast clutch release. The chuggle is eliminated and you get nice, smooth starts. Everyone will think you're a master shifter. (We won't tell.) It makes for better control, added comfort and improved driving feel.
Ever wonder what would happen if you applied the brakes and pressed on the gas at the same time? Know what? The brakes would win. That's called Brake Torque Management.
Brake Torque Management places limits on engine torque when the brakes are applied. The system simply makes sure the engine doesn't overpower the brakes. For example, if the throttle falls victim to mechanical failure and is stuck open, Brake Torque Management will come into play the instant the brakes are applied and cut engine torque so the brakes stop the vehicle. An everyday example of Brake Torque Management is when you're idling at a red traffic light with your vehicle in "drive" and your foot on the brake. Brake Torque Management sensors read the situation and send the data to the eMotion engine controller which reduces the engine torque so the brakes will stop the vehicle. We like the idea of the brakes always winning. Everybody sleeps better, and the benefit, clearly, is safety.