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Question

Difficulty: EasyTire Failure and Blowouts

An operator of a commercial motor vehicle experiences a sudden steer-tire blowout while traveling at highway speed. To maintain vehicle control, which action should the driver take first?

  1. A
    Apply the service brakes immediately and firmly to stop before leaving the lane
  2. Grip the steering wheel firmly with both hands and stay completely off the brake pedalAnswer
  3. C
    Engage the trailer hand valve immediately to drag the vehicle to a stop
  4. D
    Steer sharply toward the roadway shoulder while shifting the transmission into neutral

Answer

Grip the steering wheel firmly with both hands and stay completely off the brake pedal
When a tire fails, the vehicle will pull heavily toward the side of the blown tire. The driver must grip the steering wheel firmly with both hands to keep the vehicle in a straight path and remain off the brakes until the vehicle slows down naturally. Only after speed has dropped significantly should gentle braking be applied to pull safely off the road.

Step-by-Step Solution

1
Identify the immediate danger of a tire blowout
A blown steer tire causes heavy pull and rapid deceleration resistance on one side.
Maintaining directional stability is the absolute top priority to prevent leaving the lane or rolling over.
2
Execute the standard CDL emergency blowout procedure
Hold the steering wheel tightly with two hands to counter the pull, stay off the brake pedal, and let the vehicle coast down.
Braking immediately when a tire fails can cause wheel lockup and immediate loss of control.

Key Concept

Proper emergency response technique during an abrupt commercial vehicle tire failure
Estimated Time:45s
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Topics

Tire Failure and Blowouts

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