Pressing this button will disable the ATC system. There is an ATC button with a light on the dashboard. The ATC system can be temporarily disabled from the cabin of a Peterbilt semi-truck. This can be done at a workshop with a specialized tool to turn settings on and off on the ECU. However, in this case, you might get error messages and warning lights coming on to let you know that the system is faulty, especially in newer models.Īnother solution is to disable the system entirely. This will prevent the system from detecting any wheel spin, which means it can’t interfere at all. You could disconnect the sensors on the wheels as well. This will only temporarily disable the system, though, so it’s not a long-term solution. The first is to disable the system by pressing the ATC button in the cabin. One is temporary, and the other is permanent. The automatic traction control system on a Peterbilt can be disabled in a few different ways. It can make driving the semi-truck more challenging in adverse conditions, though. This can bother some drivers who prefer to have complete control over their throttle input. The main reason drivers prefer the ATC system to be disabled is that it interferes with the power output of the semi-truck. The majority of truckers prefer to have the system on, though. Many truckers prefer to drive their semi-trucks without the ATC system. Why would you turn ATC off in a Peterbilt? However, ATC systems have developed massively over the years, becoming more sensitive to wheel spin and applying brakes or cutting power more gently and naturally. Frequently they would cut too much power or apply too much brake pressure to the wheels. The first versions of ATC were highly disruptive in the way they slowed the wheel down. If the wheel is spinning excessively, it can also lightly apply the brakes on that wheel, which will also slow the wheel down enough to match the speed back with the others. It can either cut the power to that wheel for a split second, slowing it down just enough to match with the other wheels. If the ATC system detects that one wheel is spinning more than others, it will take action. Several sensors are placed on the driven wheels that measure the rate at which each wheel is spinning. It’s software that has been built into Peterbilt’s ECU. The ATC system on a semi-truck is clever. The sensors are becoming better at detecting how much power is needed to allow the wheels to spin adequately without completely cutting the power. ![]() However, the system is improving year on year as manufacturers develop their traction control. We can expect the ATC system to remain firmly in place for the future as there is a significant focus on road safety, especially when it comes to semi-trucks. It is unclear when this system was implemented into all models. ![]() There are reports of Peterbilt semi-trucks using ATC systems as early as 2005. It has become a mandatory safety tool to use. It was first built into a semi-truck in the early 2000s.Īll modern-day Peterbilt semi-trucks will be equipped with traction control in some form. Do all Peterbilt Models have ATC?Īutomatic traction control has been around for several years now. ATC will cut the power preventing you from being able to go full throttle. In some cases, you need a lot of power to get you out of a sticky situation. However, it does limit the amount of power you can put down on the road, even if you push the throttle down fully. This is a very clever system that works similarly to the standard traction control system found on road cars. When one wheel begins to spin too much, the system will cut the power or apply the brakes on that specific wheel. This can cause the semi-truck to lose stability very quickly, resulting in an accident.ĪTC was designed to detect how much each wheel is spinning. ![]() When this happens, the wheel that is spinning too much will lose traction. For example, the lift side will spin more than the right. In the majority of cases, one wheel will spin more than others. When you’re driving a semi-truck in slippery conditions, there is a high chance f the wheels spinning when you begin to accelerate. This can either be in adverse weather conditions, slippery roads, or even while cornering. ![]() The ATC system allows the semi-truck to accelerate more stably. However, some people report that it interferes too often. It can be your best friend if you’re driving in slippery conditions.
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