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The Department of Transportation requires that antilock braking systems be on:
Many buses built before these dates have been voluntarily equipped with ABS. Your school bus will have a yellow ABS malfunction lamp on the instrument panel if it is equipped with ABS.
When you brake hard on slippery surfaces in a vehicle without ABS, your wheels may lock up. When your steering wheels lock up, you lose steering control. When your other wheels lock up, you may skid or even spin the vehicle.
ABS helps you avoid wheel lock up and maintain control. You may or may not be able to stop faster with ABS, but you should be able to steer around an obstacle while braking, and avoid skids caused by over braking.
When you drive a vehicle with ABS, you should brake as you always have. In other words:
Without ABS, you still have normal brake functions. Drive and brake as you always have.
Vehicles with ABS have yellow malfunction lamps to tell you if something is not working. The yellow ABS malfunction lamp is on the bus’s instrument panel.
As a system check on newer vehicles, the malfunction lamp comes on at start-up for a bulb check and then goes out quickly. On older systems, the lamp could stay on until you are driving over 5 mph.
If the yellow malfunction lamp stays on after the bulb check or goes on once you are underway, you may have lost ABS control at one or more wheels.
Remember: If your ABS malfunctions, you still have regular brakes. Drive normally, but get the system serviced soon.
If your ABS system malfunctions:
How will you know if you've lost ABS function at one or more wheels?
When you drive a vehicle with ABS, which of the following is NOT the proper procedure?
When you drive a vehicle with ABS, you should brake as you always have. In other words:
Which of the following are NOT true about ABS?
How will you know if your school bus is equipped with ABS?
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