What is a common misconception about what antilock brakes do on a combination vehicle?

Pick an answer

1. That ABS shortens stopping distance, when its main job is helping the driver keep steering control during hard braking
2. That ABS only works on the tractor's wheels and never activates anywhere on the trailer's own axles
3. That ABS needs to be manually turned on before each trip
4. That ABS replaces the need for a functioning parking brake

Correct!

Not quite. The correct answer is highlighted.