Antilock Braking System
The Meritor WABCO® Antilock Braking System (ABS) controls wheel speed during emergency stops or wheel lock situations.
During emergency or reduced-traction stops, fully depress the brake pedal until the vehicle comes to a safe stop. Do not pump the brake pedal . With the brake pedal fully depressed, the ABS will control all wheels to provide steering control and a reduced braking distance.
Vehicles with ABS may have Automatic Traction Control (ATC). The ATC system automatically limits wheel spin during reduced-traction situations. If the vehicle has ATC, there will be an ATC switch located on the right-hand control panel. See Fig.. Pressing the switch will temporarily allow more drive wheel spin. Pressing the switch again will cause the system to go back to normal operation.
Fig. 1, ATC Switch
Notice: The ATC option is intended to be used under specific slippery conditions that require momentary increased wheel spin. Using this option for an extended period of time may damage the vehicle brake system.