While there are technological advances being made to try and prevent or counteract jackknifing, it is essentially up to the trucker to be aware of road conditions and adjust their driving so that they don't get into a dangerous situation. If you've experienced a truck accident, keep your safety a top priority and follow these steps after an accident:
Check yourself and your passengers for injury
Call the paramedics if you've sustained serious injuries
Call the police to help create an accident report
Take pictures of your injuries and the damages to your vehicle and the truck
If the damages to the car are not serious, move it off to the side of the road
Talk to witnesses about what they saw and get their information for questions after the fact
Contact your accident lawyer as soon as possible