CDL Emergency Procedures

Knowing the correct emergency procedures before an incident occurs is the difference between a close call and a catastrophe. This comprehensive video covers the full range of emergency situations commercial drivers may encounter.

Brake failure procedures are covered first, as brake system failures are among the most dangerous emergencies. The instructor explains the difference between partial brake failure (loss of one circuit) and complete brake failure. For partial failure, you typically still have some braking from the remaining circuit, and the emergency spring brakes will activate if pressure drops too low. The video demonstrates how to use engine braking, downshifting, and the trailer brake hand valve (if equipped) to stop the vehicle. For complete failure on a downgrade, the runaway truck ramp procedure is explained: steer straight onto the ramp, maintain control, and let the gravel or sand arrest the vehicle.

Vehicle fire procedures are demonstrated with clear priorities: get the vehicle off the road and stop, turn off the engine to stop fuel flow, evacuate immediately (your life is more valuable than any cargo), and call 911. The instructor explains when to use a fire extinguisher (small, contained fire that you can fight with your back to an escape route) versus when to simply evacuate (large fire, hazmat involvement, or fire near fuel tanks). Proper fire extinguisher technique — PASS: Pull pin, Aim at base, Squeeze handle, Sweep side to side — is demonstrated.

Rollover prevention is explained with an understanding of vehicle dynamics. The instructor demonstrates why tractor-trailers roll over: excessive speed on curves, abrupt steering inputs, high center of gravity combined with lateral forces. Tips for rollover avoidance include: enter curves below the posted advisory speed (which is set for cars, not trucks), avoid sudden steering corrections, and understand that liquid loads (tankers) are especially vulnerable due to surge effects.

Accident response procedure is covered comprehensively: stop immediately, secure the scene with four-way flashers, set out reflective triangles, check for injuries, call 911, exchange information, document the scene with photos, and never admit fault (let the investigation determine liability). The instructor also covers the CDL requirement to report accidents to your employer and the FMCSA requirements for accident reporting.

Hazmat emergency procedures receive dedicated coverage for drivers who haul hazardous materials. The instructor explains how to use the Emergency Response Guidebook (ERG), when to contact CHEMTREC, and the importance of keeping shipping papers accessible and visible for first responders. Special attention is given to containment versus evacuation decisions.

For all emergency procedures, reference the FMCSA at https://www.fmcsa.dot.gov/ and your employer's specific emergency protocols. Supplement this training with our CDL practice tests.