By taking control of the vehicle in a situation that's headed toward a loss of control, StabiliTrak and such systems are more likely to stop the vehicle from going off the road and encountering one of the elements (a curb or a ditch) that can cause a rollover.
It's important here to draw a line under the word ''likely,'' since the rules of physics still apply and not even sophisticated systems such as StabiliTrak are able to counter-act really big driver errors.
This is why everyone associated with the call for or introduction of stability control systems in large vans still draws attention to the need for driver training and responsibility.
Robert C. Lange, GM's executive-director for structure and safety integration, says that ''While vehicle stability enhancement systems do not directly prevent rollover crashes, they may help drivers avoid the conditions that cause them.''
Lange quickly adds that ''it is important to understand that no system is foolproof. That is why we will continue to educate our customers on the unique operating characteristics of full-size, extended passenger vans and that they should be operated only by experienced drivers.''
On this point, Ford is in complete agreement with its legendary cross-town rival. Ford's Carolyn Brown points out that ''he single most effective safety item in any vehicle is the safety belt. In a rollover, seat belt use significantly reduces the risk of ejection, serious injury or death.''
According to U.S. government statistics, Brown notes, 80 percent of people killed in single vehicle rollovers are not wearing their safety belts.
Brown also makes the point that it is important that 15-passenger vans be operated by trained, experienced drivers, and that ''driver training is available from a variety of licensed training institutions.''
Ford recommends that drivers of 15-passenger Econoline vans ''avoid sharp turns, excessive speeds and abrupt maneuvers,'' Brown says. ''Drivers must understand that loaded vehicles may handle differently than unloaded vehicles and extra precautions should be taken.''
In the case of 15-passenger vans being used for church transportation and other types of transportation, Brown says, ''we recommend that specifically designated drivers be trained in proper operation of these vehicles, and these drivers act as the official transportation provider.''
There's no doubt that everyone at GM would agree with Brown when she says, ''It is important to remember that the 15-passenger van is not a car and does not handle like a car, so drivers of these vans should have ample experience in operating them.''
That would apply to any such vehicle, of course, but particularly to those without StabiliTrak or some other form of stability control.
