[header] How to sit in a car without back pain [title] Enter the car hips first. [step] Try not to just jump in and out of your car. Bring your hips into the car first, sit on the seat, then rotate your knees to bring them in front of you. 
When you exit, rotate your knees out of the car, then step up and lift yourself out of the seat. [substeps] If you have an suv, truck, or other automobile with a high step, see if you can add an extra step or running board to make it easier to get in and out of your seat.