Illinois CDL DMV Endorsement Double 1

On a vehicle with ABS, a yellow malfunction lamp on the instrument panel will illuminate to alert you if the braking system is not working.

It is important to communicate your intentions to others on the road. Make sure to signal before turning or changing lanes, even if no other vehicles are nearby.

In a vehicle with air brakes, the brake lights are activated when the brake pedal is pushed and air pressure moves an electric switch. With the application of air pressure, the switch will then turn on the brake lights.

Dollies manufactured on or after March 1, 1998 must have Anti-Lock Braking Systems (ABS). A dolly with ABS must be identifiable by a yellow lamp on its left side.

Being under stress can lead to aggressive driving, which is dangerous. Playing calming music can help you become more relaxed if you are feeling stressed while driving.

If your brakes fail on a downgrade, your best option is to use an escape ramp. If no escape ramp is available, it is a good idea to look for a different escape route, such as a side road or open field.

In bad weather, particularly when visibility is poor, it is common for automobile drivers to follow closely behind trucks. Open up the distance between your vehicle and the vehicle in front of you if you are being followed too closely.

Truck tractors with air brakes that were manufactured on or after March 1, 1997 are required to be equipped with Anti-Lock Braking Systems (ABS). ABS is required in any other type of vehicle with air brakes that was manufactured on or after March 1, 1998.

Possible causes of vehicle fires include spilled fuel or improper use of flares following an crash; under-inflated tires or dual tires that touch; short circuits in the electrical system; smoking around fuel; improper fueling or loose fuel connections; and carrying cargo that is flammable, improperly sealed or loaded, or poorly ventilated.

It is essential that your low pressure warning light functions properly. After allowing the system to charge, you can test the warning signal by rapidly applying and releasing the brake pedal. This will release air from the braking system and the warning signal should come on when pressure drops to a dangerous level.

After an accident, spilled fuel and improper use of flares can result in a fire.

An engine can be rapidly destroyed if it is run without oil. If its oil pressure gauge is low or fluctuating, do not operate a vehicle.

When inspecting your vehicle, ensure that radial and bias-ply tires are not being used together.

During a pre-trip inspection, you should activate your lights, then get out of the vehicle to look at them.

A wig wag is a type of low air pressure warning device in an air brake system. It drops a mechanical arm into the driver's view when the air pressure in the tanks falls below 60 psi.

The earliest and best way to recognize the beginnings of a trailer skid is by seeing the trailer veer off-course in your mirrors.

In places where water collects on the road, it is possible for a vehicle to hydroplane. Low tire pressure or worn tire tread makes this more likely to happen. If there is enough water on a road surface, hydroplaning can occur at speeds as low as 30 mph.

As a precaution, you should always approach a railroad crossing under the assumption that a train is coming. Do not rely only on signals or your hearing to indicate that a train is approaching.

If you use your brakes too much when traveling on a steep downgrade, they may overheat and become less effective. To avoid causing your brakes to overheat on a steep hill, you should rely on engine braking.

Because you can't see everything behind you, backing is always dangerous and should be avoided whenever possible. Choose parking spaces from which you can pull forward when you leave.