Which action may lead to loss of vehicle control according to safe driving practices?

The action leading to potential loss of vehicle control is failing to check blind spots. Blind spots are areas around a vehicle that cannot be directly seen by the driver while looking in the mirrors. Not checking these areas can result in collisions with other vehicles, cyclists, or pedestrians that may have entered the driver's path without their knowledge. This oversight can cause abrupt steering or unintended lane changes, leading to a loss of control over the vehicle.

In contrast, proper steering techniques and maintaining a safe following distance contribute positively to vehicle control and overall safe driving. Checking blind spots is an essential practice for maintaining awareness and ensuring safe maneuvers on the road, which demonstrates the importance of being vigilant while driving.