In slippery road conditions, which braking system should be avoided?

In slippery road conditions, avoiding the use of auxiliary brakes is advisable because these systems can create an abrupt loss of traction. Auxiliary brakes, which may include compression release brakes or other systems designed to provide additional stopping power, can cause the wheels to momentarily lose grip on the slick surface. This loss of traction can lead to skidding or sliding, exacerbating the danger of maintaining control over the vehicle.

On the other hand, service brakes are designed for standard stopping and can be modulated effectively to prevent lock-up on slippery surfaces. Engine brakes and transmission retarders, while also providing braking, can be used judiciously to assist in maintaining control without the sudden engagement that auxiliary brakes might cause. In slippery conditions, gradual and controlled braking is paramount to maintaining vehicle stability and preventing accidents.