ATC Switch

SD DM 05.03.05

The Automatic Traction Control (ATC) switch is a momentary switch. Briefly push the top of the switch to activate or deactivate it. See Fig..

  1. Windshield Wiper/Washer Switch

  2. Cruise Control Activate Switch

  3. Cruise Control Settings Switch

  4. Engine Brake ON/OFF Switch

  5. Engine Brake Level Switch

  6. Optional Switch

  7. Engine Fan Switch

  8. Marker Interrupt Switch

  9. Regen Switch

  10. ATC Switch

  11. Dome Lamp Switch

  12. Bunk HVAC Override Switch

  13. Shutdown Override Switch

Fig. 1, Main Dash Switches

The ATC system limits wheel spin when power is applied to the drive axles during reduced-traction situations. When the ATC is active, the ATC will apply gentle braking to the spinning wheel, to force power to the wheel(s) with better traction. If both wheels are spinning, the system will signal the electronic engine to reduce power.

Pressing the ATC switch will temporarily allow more drive wheel spin, to help burn through a thin layer of ice, or to help throw off accumulated mud or snow. When the switch is activated, an ATC or WHEEL SPIN icon located in the driver's message center will blink slowly. Pressing the switch again will cycle the system back to normal operation.

Note:
Parent topic: Main Dash Switches
Document Number: 0000123098
Manual Publication Date: 2025-01-23
Topic Publication Date: 2025-01-23